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Power Relay
MM
CSM_MM_DS_E_5_3
Stable Contact Reliability and Long Life
• Easy to mount, wire, and use.
• A large selection of models including various contact forms,
DC-switching models, and open models.
• Mechanical life: 5,000,000 operations; electrical life
(under rated load): 500,000 operations.
• Models also available with built-in diodes and for use as
auxiliary power relays.
Refer to Safety Precautions for All Relays.
Ordering Information
Type
Contact form
Open structure
Solder terminals
Standard
DC-switching
With built-in diode
DC-switching with built-in diode
With operation indicator
DC-switching with operation indicator
Cased
Screw terminals
Plug-in (octal pins)
terminals
DPDT
MM2
MM2B
MM2P
3PDT
MM3
MM3B
MM3P
MM4P
4PDT
MM4
MM4B
DPDT
MM2X
MM2XB
MM2XP
3PDT
MM3X
MM3XB
MM3XP
MM4XP
4PDT
MM4X
MM4XB
DPDT
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MM2P-D
4PDT
---
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MM4P-D
DPDT
---
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MM2XP-D
4PDT
---
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MM4XP-D
DPDT
---
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MM2PN
3PDT
---
---
MM3PN
MM4PN
4PDT
---
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DPDT
---
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MM2XPN
3PDT
---
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MM3XPN
4PDT
---
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MM4XPN
Conforming to auxiliary power relay speci- 4PDT
fications
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MM4P-JD
---
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MM4XP-JD
■ Available Models
When your order, specify the rated voltage.
Open Coils (with Solder Terminals)
Type
Standard
DC-switching
Contact form
Relay model
Available rated voltage
DP
MM2
6, 12, 24, 50, 100/(110), 200/(220) VAC
6, 12, 24, 48, 100/110, 200/220 VDC
3P
MM3
100/(110), 200/(220) VAC
6, 12, 24, 48, 200/220 VDC
4P
MM4
24, 100/(110), 200/(220) VAC
6, 12, 24, 48, 100/110, 200/220 VDC
DP
MM2X
100/(110), 200/(220) VAC
6, 12, 24, 48, 100/110, 200/220 VDC
3P
MM3X
100/(110), 200/(220) VAC
12, 24, 100/110 VDC
4P
MM4X
100/(110), 200/(220) VAC
12, 24, 48, 100/110 VDC
1
MM
Open Coils (with Screw Terminals)
Type
Standard
DC-switching
Contact form
Relay model
Available rated voltage
DP
MM2B
6, 12, 24, 50, 100/(110), 200/(220) VAC
12, 24, 48, 100/110, 125, 200/220 VDC
3P
MM3B
6, 100/(110), 200/(220) VAC
12, 24, 100/110 VDC
4P
MM4B
6, 100/(110), 200/(220) VAC
12, 24, 48, 100/110 VDC
DP
MM2XB
24, 100/(110), 200/(220) VAC
12, 24, 48, 100/110, 125, 200/220 VDC
3P
MM3XB
100/(110), 200/(220) VAC
12, 24, 48, 100/110, 125, 200/220 VDC
4P
MM4XB
12, 24, 100/(110), 200/(220) VAC
6, 12, 24, 48, 100/110, 200/220 VDC
Cased Coils (Plug-in Terminals)
Type
Standard
Contact form
Relay model
Available rated voltage
DP
MM2P
6, 12, 24, 50, 100/(110), 200/(220) VAC
6, 12, 24, 48, 100/110, 125, 200/220 VDC
3P
MM3P
6, 24, 100/(110), 200/(220) VAC
6, 12, 24, 48, 100/110, 125, 200/220 VDC
4P
MM4P
6, 24, 50, 100/(110), 200/(220) VAC
12, 24, 48, 100/110, 125, 200/220 VDC
DP
MM2XP
6, 24, 100/(110), 125, 200/(220) VAC
6, 12, 24, 48, 100/110, 125, 200/220 VDC
3P
MM3XP
24, 50, 100/(110), 200/(220) VAC
12, 24, 48, 100/110, 125, 200/220 VDC
4P
MM4XP
12, 24, 50, 100/(110), 200/(220) VAC
6, 12, 24, 48, 100/110, 125, 200/220 VDC
With built-in diode
DP
MM2P-D
MM4P-D
12, 24, 48, 100/110, 200/220 VDC
12, 24, 48, 100/110, 125, 200/220 VDC
DC-switching with built-in diode
DP
MM2XP-D
MM4XP-D
12, 24, 48, 100/110, 125, 200/220 VDC
12, 24, 48, 100/110, 125, 200/220 VDC
With operation indicator
DP
MM2PN
6, 24, 100/(110), 200/(220) VAC
6, 12, 24, 48, 100/110, 125, 200/220 VDC
3P
MM3PN
100/(110), 200/(220) VAC
6, 12, 24, 48, 100/110, 200/220 VDC
4P
MM4PN
24, 100/(110), 200/(220) VAC
24, 48, 100/110, 125, 200/220 VDC
DP
MM2XPN
100/(110), 200/(220) VAC
12, 24, 48, 100/110, 125, 200/220 VDC
3P
MM3XPN
100/(110), 200/(220) VAC
24, 48, 100/110, 200/220 VDC
4P
MM4XPN
100/(110), 200/(220) VAC
12, 24, 48, 100/110, 125, 200/220 VDC
Conforming to auxiliary power relay
specifications
4P
MM4P-JD
100/(110), 110, 115, 200/(220), 220 VAC
24, 100/110, 125, 200/220 VDC
Conforming to auxiliary power relay
specifications for DC-switching
4P
MM4XP-JD
100/(110), 110, 115, 200/(220) VAC
24, 48, 100/110, 125, 200/220 VDC
DC-switching
DC-switching with operation indicator
Models Conforming to Auxiliary Power Relay Specifications
The MM4P-JD and MM4XP-JD satisfy the ratings of auxiliary relays provided in JEC-2500 (1987) standards for power protective relays specified
by the Japan Electromechanical Commission. Furthermore, the MM4P-JD and MM4XP-JD satisfy the ratings of multi-contact relays provided in
JEC-174D (1979) standards for power auxiliary relays.
These models work at operation level B specified by JEC-174D (1979) standards and the hot start of the relays is possible after the coils radiate
heat.
In accordance with JEC-2500 (1987) standards, the coil of each model withstands a 130% DC load or 115% AC load.
Note: 1. When ordering, add the rated coil voltage to the model number. Rated coil voltages are given in the coil ratings table.
Example: MM2, 6 VAC
Rated coil voltage
2. Latching Relays based on the MM Series are also available. Refer to the MMK.
3. Models with built-in varistors (AC operation) are also available in addition to those with built-in diodes. Ask your OMRON representative for details.
2
MM
Model Number Legend
MM@@@@-@
1
2
3 4
5
4. Operation Indicator
None: Not provided
N:
Provided
5. Built-in Diode
None: Not provided
D:
Provided
1. Contact Form
2:
DPDT
3:
3PDT
4:
4PDT
2. Type (See Note.)
None: Standard
X:
DC-switching
3. Terminal Shape
None: Solder
B:
Screw
P:
Plug-in
Note: The suffix “JD” indicates models conforming to auxiliary power
relay specifications.
■ Accessories (Order Separately)
Mounting Brackets
Mounting Bracket (S bracket)
R99-03MM
Sockets
Relay model
DIN Track/Front-connecting Socket
(screw terminals)
Back-connecting Socket
(solder terminals)
MM2(X)P(-D)
8PFA
PL08
MM3P
11PFA
PL11
MM3XP, MM4(X)P(-D)
14PFA
PL15
MM4(X)P-JD
14PFA
---
3
MM
Specifications
■ Coil Ratings
Open Coils (with Solder or Screw Terminals)
Rated voltage
(V)
Rated current (mA)
DP
50 Hz
AC
DC
Coil resistance (Ω)
3P or 4P
60 Hz
50 Hz
DP
Mustoperate
voltage
3P or 4P
60 Hz
Mustrelease
voltage
Max.
voltage
Power consumption
(VA or W)
% of rated voltage
6
790
655
1,120
950
1.1
0.5
12
395
325
560
480
4.7
2.0
24
195
160
280
240
19
8.5
50
94
78
134
114
82
36
100/(110)
47
39/45
67
57/66
340
150
200/(220)
23.5
19.5/ 22.5 33.5
28.5/33
1,540
620
6
340
450
17.5
13.4
12
176
220
68
54
24
87
94
275
255
48
41
52
1,180
930
100/110
17/19
22/24.5
5,750
4,500
200/220
8.6/9.5
11/12
23,200
18,000
Initial
Rated
80% max. 30% min. 110%
(60 Hz)
25% min.
(50 Hz)
Approx.
4.1 (DP)
Approx.
6.3 (3P or
4P)
Approx.
3.5 (DP)
Approx.
5.1 (3P or
4P)
70% max. 10% min.
Approx. 2.1 (DP)
Approx. 2.7 (3P or
4P)
Note: 1. The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of +15%/–20% for AC rated current and
±15% for DC coil resistance.
2. The AC coil resistance values are reference values.
3. Performance characteristic data are measured at a coil temperature of 23°C.
4. The maximum voltage is one that is applicable instantaneously to the Relay coil at an ambient temperature of 23°C and not continuously.
Cased Coils (Plug-in Terminals)
The rated current may vary if the Relay has a built-in operating indicator (See note 4.).
Rated voltage
(V)
Rated current (mA)
DP
50 Hz
AC
DC
60 Hz
3P or 4P
50 Hz
Coil resistance
(Ω)
DP
60 Hz
3P or
4P
Coil inductance (H)
DP
3P or 4P
Contact Contact Contact Contact
release operate release operate
6
690
590
975
850
1.1
0.5
0.02
0.02
0.01
0.03
12
345
295
490
430
4.7
2.0
0.07
0.01
0.04
0.07
24
170
145
245
210
19
8.5
0.28
0.41
0.18
0.28
50
82
70
117
102
82
36
1.2
1.7
0.75
1.2
100/(110) 41
35/40
58.5
51/58
340
150
4.8
6.7
3
4.5
200/(220) 20.5
17.5/
20
29
25.5/
29
1,540
620
20
25.6
12
19
6
340
450
17.5
13.4
0.2
0.36
0.23
0.35
12
176
220
68
54
0.74
1.0
0.87
1.4
24
87
94
275
255
4.2
5.8
5.6
9.2
48
41
52
1,180
930
20.4
26
27.3
45.5
4,500
100/110
17/19
22/24.5
5,750
81.6
92.5
61.4
96.5
200/220
8.6/9.5
11/12
23,200 18,000 340
380
158
250
Must- MustMax.
operate release voltage
voltage voltage
% of rated voltage
Power
consumption
(VA or W)
Initial
Rated
Approx.
3.5
(DP)
Approx.
5.1 (3P
or 4P)
80%
max.
30%
110%
min.
(60 Hz)
25%
min.
(50 Hz)
Approx.
4.1
(DP)
Approx.
6.3 (3P
or 4P)
70%
max.
10%
min.
Approx. 2.1 (DP)
Approx. 2.7 (3P
or 4P)
Note: 1. The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of +15%/–20% for AC rated current and
±15% for DC coil resistance.
2. The AC coil resistance and coil inductance values are for reference only.
3. Performance characteristic data are measured at a coil temperature of 23°C.
4. The maximum voltage is one that is applicable instantaneously to the Relay coil at an ambient temperature of 23°C and not continuously.
5. The rated current of a model with a built-in LED indicator at 6, 12, 24, or 50 VAC or 6, 12, 24, or 48 VDC increases by approx. 10 mA due
to the current consumption of the LED. The rated current of a model with a built-in neon lamp indicator at 100/(110) or 200/(220) VAC or
100/110 or 200/220 VDC increases by approx. 0.2 mA due to the current consumption of the neon lamp.
4
MM
Coils (Conforming to Auxiliary Power Relay Specifications)
Rated voltage
(V)
Rated current (mA)
50 Hz
AC
DC
Coil
Coil inductance (H)
resistance (Ω)
60 Hz
Contact
release
Mustoperate
voltage
Contact
operate
24
245
210
8.5
0.18
0.28
50
117
102
36
0.75
1.2
100/(110)
58.5
51/58
150
3
4.5
110
53
46
182
3.6
5.5
115
51
44
210
4
6.2
200/(220)
29
25.5/29
620
12
19
220
26.5
23
780
15
21
24
94
255
5.6
9.2
48
52
930
27.3
45.5
100/110
22/24.5
4,500
61.4
96.5
125
22
5,800
90
130
200/220
11/12
18,000
158
250
Mustrelease
voltage
Max.
voltage
Opera- Power consumption
tion level
(VA or W)
(JEC174D)
Initial
Rated
% of rated voltage
80% max. 30% min. 110%
(60 Hz)
25% min.
(50 Hz)
B
Hot start
after coil
heated
70% max. 10% min.
Approx.
6.3
Approx.
5.1
Approx. 2.7
Note: 1. The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of +15%/–20% for AC rated current and ±15% for DC coil
resistance.
2. The AC coil resistance and coil inductance values are for reference only.
3. Performance characteristic data are measured at a coil temperature of 23°C.
4. The maximum voltage is one that is applicable instantaneously to the Relay coil at 23°C and not continuously.
■ Contact Ratings
Standard Relays
Item
Open Relays
Cased Relays
MM2(B), MM3(B), MM4(B)
MM2P(N, -D), MM3P(N), MM4P(N, -D)
Resistive load
(cosφ = 1)
Inductive load
(cosφ=0.4, L/R=7 ms)
Resistive load
(cosφ = 1)
Contact type
Single
Contact material
Ag
Rated load
15 A at 220 VAC
10 A at 24 VDC
7.5 A at 220 VAC
5 A at 24 VDC
Rated carry current
15 A
7.5 A
Max. switching voltage
250 VAC, 250 VDC
250 VAC, 250 VDC
Max. switching current
15 A
7.5 A
Max. switching power
(reference value)
3,300 VA at 240 W
1,700 VA at 120 W
Inductive load
(cosφ=0.4, L/R=7 ms)
Minimum permissible load
5 VDC 10 mA
(reference value) (See note.)
Note: This value is measured at 60 operations/min.
DC-switching Relays/Built-in Diode Relays
Item
Open Relays
Cased Relays
MM2X(B), MM3X(B), MM4X(B)
MM2XP(-D), MM3XP, MM4XP(-D)
Resistive load
(cosφ = 1)
Contact type
Single
Contact material
Ag
Inductive load
(L/R=7 ms)
7 A at 110 VDC
Resistive load
(cosφ = 1)
Rated load
10 A at 110 VDC
Rated carry current
15 A
7.5 A
Max. switching voltage
250 VAC, 250 VDC
Max. switching current
Max. switching power
(reference value)
15 A
1,200 W at 20 VA *1
250 VAC, 250 VDC
7.5 A
Minimum permissible load
(reference value) *2
5 VDC at 10 mA
800 W at 20 VA *1
7 A at 110 VDC
800 W at 20 VA *1
Inductive load
(L/R=7 ms)
6 A at 110 VDC
660 W at 20 VA *1
Note: 1. When switching DC inductive loads at 125 V or more, an unstable region exists for a contact current of between 0.5 and 2.5 A. The Relay will not turn OFF
in this region. Use a contact current of 0.5 A or less when switching 125 VDC or more.
2. If L/R exceeds 7 ms when switching DC inductive loads, an arc-breaking time of up to 50 ms must be considered in application and the circuit must be designed
to ensure that an arc-breaking time of 50 ms is not exceeded.
3. The switching capacity for an AC load is minute.
*1. Refer to Switching an AC Load with a DC-switching Model (“X” Model) on page 16.
*2. This value is measured at 60 operations/min.
5
MM
Contacts (Conforming to Auxiliary Power Relay Specifications)
Item
MM4P-JD
Resistive load
MM4XP-JD
Inductive load
(cosφ = 0.4, L/R = 7 ms)
Contact type
Single
Contact material
Ag
Rated load
5 A at 220 VAC, 5 A at 24 VDC
Rated carry current
5A
Max. switching voltage
250 VAC, 250 VDC
Max. switching current
5A
Max. switching power
(reference value)
1,100 VA, 120 W, 30 W (L/R = 40 ms)
Resistive load
Inductive load
(cosφ = 0.4, L/R = 7 ms)
5 A at 110 VDC
20 VA, 550 W, 40 W (L/R = 40 ms)
Note: 1. A model for DC loads is not in stable operation when switching an inductive load within a operating current range between 0.5 and 2.5 A
at a minimum of 125 VDC, where the load cannot be switched.
2. If L/R exceeds 7 ms when switching DC inductive loads, an arc-breaking time of up to 50 ms must be considered in application and the
circuit must be designed to ensure that an arc-breaking time of 50 ms is not exceeded.
■ Characteristics
Standard Relays
Item
Open Relays
Cased Relays
Contact resistance (See note 2.)
25 mΩ max.
50 mΩ max.
Operate time (See note 3.)
AC: 25 ms max. DC: 50 ms max.
Release time (See note 3.)
30 ms max. (100 ms max. for Built-in Diode Relays)
Max. operating frequency
Mechanical:7,200 operations/hr
Electrical:1,800 operations/hr (under rated load)
Insulation resistance (See note 4.)
100 MΩ min. (at 500 VDC)
Dielectric strength
1,500 VAC, 50/60 Hz for 1 min between contacts of same polarity
2,000 VAC, 50/60 Hz for 1 min between contacts of different polarity (and between coil and contacts)
Vibration resistance
Destruction: 10 to 55 to 10 Hz, 0.75 mm single amplitude (1.5 mm double amplitude)
Malfunction: 10 to 55 to 10 Hz, 0.5 mm single amplitude (1.0 mm double amplitude)
Shock resistance
Destruction: 1,000 m/s2
Malfunction: 100 m/s2
Endurance
Mechanical: 5,000,000 operations min. (at 7,200 operations/hr)
Electrical: 500,000 operations min. (at 1,800 operations/hr under rated load) (See note 5.)
Ambient temperature
Operating:–10°C to 55°C (with no icing or condensation)
Ambient humidity
Operating:5% to 85%
Weight
Standard models: DC-switching models
MM2 approx. 160 g
MM2X approx. 165 g
MM3 approx. 270 g
MM3X approx. 275 g
MM4 approx. 300 g
MM4X approx. 310 g
MM2P approx. 220 g
MM3P approx. 360 g
MM4P approx. 410 g
MM2XP approx. 225 g
MM3XP approx. 395 g
MM4XP approx. 420 g
Note: 1. The data shown above are initial values.
2. The contact resistance was measured with 1 A at 5 VDC using the voltage drop method.
3. The operate or release time was measured with the rated voltage imposed with any contact bounce ignored at an ambient temperature
of 23°C.
4. The insulation resistance was measured with a 500-VDC megger applied to the same places as those used for checking the dielectric
strength.
5. The electrical endurance was measured at an ambient temperature of 23°C.
6
MM
Relays (Conforming to Auxiliary Power Relay Specifications)
Item
Cased Relays
Contact resistance (See note 2.)
50 mΩ max.
Operate time (See note 3.)
AC: 25 ms max., DC: 50 ms max.
Release time (See note 3.)
30 ms max.
Max. operating frequency
Mechanical:
Electrical:
1,800 operations/hr
1,800 operations/hr (under rated load)
Insulation resistance (See note 4.)
100 MΩ min.
Dielectric strength
Between coil and contact:
2,000 VAC, 50/60 Hz for 1 minute
Between contacts of different polarity: 2,000 VAC, 50/60 Hz for 1 minute
Between contacts of same polarity: 1,500 VAC, 50/60 Hz for 1 minute
Vibration resistance
Destruction: 10 to 55 to 10 Hz, 0.75 mm single amplitude (1.5 mm double amplitude)
Malfunction: 10 to 22 to 10 Hz, 0.5 mm single amplitude (1.0 mm double amplitude)
Shock resistance
Destruction: 300 m/s2
Malfunction: 30 m/s2
Endurance
Mechanical: 5,000,000 operations min. (at 1,800 operations/hr)
Electrical: 500,000 operations min. (at 1,800 operations/hr with rated load) (see note 5)
Error rate (level P)
(Reference value)
(See note 6.)
10 mA at 5 VDC
Ambient temperature
Operating: –10°C to 40°C (with no icing or condensation)
Ambient humidity
Operating: 5% to 85%
Weight
MM4P-JD: approx. 410 g
MM4XP-JD: approx. 420 g
Note: 1. The data shown above are initial values.
2. The contact resistance was measured with 1 A at 5 VDC using the voltage drop method.
3. The operate or release time was measured with the rated voltage imposed with any contact bounce ignored at an ambient temperature
of 23°C.
4. The insulation resistance was measured with a 500-VDC megger applied to the same places as those used for checking the dielectric
strength.
5. The electrical endurance was measured at an ambient temperature of 23°C.
6. This value was measured at a switching frequency of 60 operations per minute.
Engineering Data
■ Standard Relays
Maximum Switching Power
Open Relays
MM@(B)
Cased Relays
[email protected](N, -D)
AC inductive
load
(cosφ = 0.4)
DC inductive
load L/R = 7 ms
DC resistive load
Switching voltage (V)
Switching current (A)
Switching current (A)
AC resistive load
AC resistive load
AC inductive
load
(cosφ = 0.4)
DC resistive load
DC inductive
load L/R = 7 ms
Switching voltage (V)
7
MM
Endurance Curves
Open Relays
Cased Relays
[email protected](N, -D)
10,000
7,000
5,000
220 VAC
resistive load
inductive load
(cosφ = 0.4)
3,000
1,000
700
500
24 VDC
resistive load
inductive load
L/R = 7 ms
300
10,000
7,000
Endurance (x10 3operations)
Endurance (x103 operations)
MM@(B)
5,000
220 VAC
resistive load
inductive load
(cosφ = 0.4)
3,000
1,000
700
500
24 VDC
resistive load
inductive load
L/R = 7 ms
300
100
100
Switching current (A)
Switching current (A)
■ DC-switching Relays
Maximum Switching Power
Open Relays
Cased Relays
[email protected](B)
[email protected](N, -D)
DC resistive load
Switching current (A)
Switching current (A)
DC resistive load
DC inductive load
L/R = 7 ms
DC inductive load
L/R = 7 ms
Switching voltage (V)
Endurance Curves
Open Relays
Cased Relays
Endurance (x10 3 operations)
Endurance (x103 operations)
Switching voltage (V)
10,000
5,000
3,000
24 VDC resistive load
110 VDC resistive load
1,000
500
300
110 VDC inductive load
L/R = 7 ms
100
50
10,000
5,000
3,000
1,000
110 VDC resistive load
500
300
110 VDC inductive load
L/R = 7 ms
100
50
30
30
10
10
Switching current (A)
24 VDC resistive load
Switching current (A)
8
MM
■ Relays Conforming to Auxiliary Power Relay Specifications
Maximum Switching Power
MM4XP-JD
AC resistive load
AC inductive load
cosφ = 0.4
Switching current (A)
Switching current (A)
MM4P-JD
DC resistive load
DC inductive load
L/R = 7 ms
DC resistive load
DC inductive load
L/R = 7 ms
Switching voltage (V)
Switching voltage (V)
Endurance Curves
MM4XP-JD
220 VAC: resistive load
inductive load
cosφ = 0.4
Endurance (x 10 4 )
Endurance (x 10 4 )
MM4P-JD
110 VDC: resistive load
inductive load
L/R = 7 ms
24 VDC resistive load
Inductive load
L/R = 7 ms
Switching current (A)
Switching current (A)
9
MM
Ambient Temperature vs. Must-operate
and Must-release Voltage
MM2P DC
Number of Relays: 5
Must-operate voltage
Must-release voltage
Must-operate and reset voltage (%)
Must-operate and reset voltage (%)
MM2P AC (60 Hz)
Number of Relays: 5
Must-operate voltage
Must-release voltage
Ambient temperature (°C)
Ambient temperature (°C)
Ambient Temperature vs.
Coil Temperature Rise
MM2P DC
Coil temperature rise (° C)
Coil temperature rise ( ° C)
MM2P 110 VAC (60 Hz)
Contact carry current
Number of Relays: 5
Ambient temperature (°C)
Malfunctioning Shock
MM2P AC
Contact carry current
Number of Relays: 5
Ambient temperature (°C)
Contact Reliability
(Improved Allen-Bradley Test Circuit)
Unit: m/s2
Number of samples: 5
Measurement conditions:
Impose a shock of 100 m/s2 in
the ±X, ±Y, and ±Z directions
three times each with the
Relay energized and not
energized to check the shock
values that cause the Relay
to malfunction.
Contact load: 10 mA at 5 VDC
(resistive load)
Error rate l = 0.0202 x
10−6/operations (level Q)
Accumulated number of errors
NO contact
NC contact
Accumulated number of errors
MM4P 24 VDC
Contact load: 1 mA at
5 VDC (resistive load)
Error rate l = 0.2794
x 10−6/operations
(level N)
Shock direction
Number of switching
operations (x 104 times)
Number of switching
operations (x 104 times)
10
MM
Relay Mounting Adjacent Distance vs.
Coil Temperature Rise
Coil temperature rise ( ° C)
MM4P 100 /(110) VAC
Relay
mounting
position
Condition: The saturated
coil temperature is
measured with the rated
carry current (7.5 A) at
the rated coil voltage
(100 VAC at 50 Hz).
Upper
Lower
Average of No. 2, 4, 6, and 8
Average of No. 1, 3, 7, and 9
Contact carry current (7.5 A)
No contact carry current
Average of No. 2, 4, 6, and 8
Average of No. 1, 3, 7, and 9
Mounting adjacent distance l (mm)
Dimensions
Note: All units are in millimeters unless otherwise indicated.
■ Standard Relays
Open Relays
Solder Terminals
MM2(X), MM4(X), MM3(X)
MM2(X)
2P
MM3(X)
1P
3P
53.5
max.
MM4(X)
1P
4P
61.5
max.
Four, M4
mounting
screw
holes
MM2
2P
22
40 max.
3P
2P
Side View
1P
Common C
Stationary A
Stationary B
61.5
max.
28
50 max.
Four, M4
mounting
screw
holes
13
22
51 max.
34
63 max.
Four, M4
mounting
screw
holes
Note: Connect the common (C) of [email protected] to positive (+).
Screw Terminals
MM2(X)B, MM3(X)B,
MM4(X)B
MM2(X)B
2P 1P
MM3(X)B
Eight, M3.5 x 5.5
screws
3P
2P
1P
Side View
MM4(X)B
Eleven, M3.5 x
5.5 screws
4P 3P
Fourteen, M3.5
x 5.5 screws
2P 1P
Common C
Stationary A
Stationary B
59.5 max.
67.5 max.
67.5 max.
22
MM2B
Four, M4
mounting
screw
holes
22
55 max.
28
Four, M4
mounting
screw
holes
60 max.
Four, M4
mounting
screw
holes
34
67 max.
18.5
56 max.
Note: Connect the common (C) of [email protected] to positive (+).
11
MM
Mounting Holes
(Bottom View)
Direct mounting
Four, 4.5-dia. mounting holes
22±0.2
Length of l
DPDT: 22±0.2
3PDT: 28±0.2
4PDT: 34±0.2
Mounting Bracket (S Bracket)
R99-03 (S KANAGU) FOR MM@
H
The S Bracket can be
used to mount a Relay
with open solder or screw
terminals.
R99-03 (S KANAGU) R99-03 (S KANAGU)
FOR MM2 (611)
FOR MM3. 4 (61)
(DPDT)
3PDT, 4PDT
W
22
±0.2
58
±0.2
22±0.2
l
22
28, 34
D
71 max.
71 max.
W 36 max.
46 max.
H
6 max.
44
6 max.
l
12
MM
Cased Relays
Case-protection
plate
Plug-in Terminals
MM2P(N, -D)
MM2XP(N, -D)
80.5
max. 59.5
max.
7
3.5
24
47.5 max.
MM2P
73 max.
Note: As shown in the diagram, there are three 10-dia. holes in the side of the case for the MM2XP(N, -D).
When a case-protection plate is attached, the width of the Relay will be 48 mm max.
Terminal Arrangement (Bottom View)
l
MM2P
Make sure that all common connections have the same polarity for the MM2XP-N/-D. The
markings of the common connections on the casing all show "+" but the polarity of the
common connections can be either negative or positive as long as they are all the same.
MM2P-D
MM2PN
MM2PN
6, 12, 24, 50 VAC
MM2XP
MM2XP-D
6, 12, 24, 48 VDC
MM2XPN
6, 12, 24, 50 VAC
MM2XPN
6, 12, 24, 48 VDC
MM2PN
100/(110), 200/(220) VAC
100/110, 200/220 VDC
MM2XPN
100/(110), 200/(220) VAC
100/110, 200/220 VDC
Note: Wire the terminals correctly with no mistakes in coil polarity.
MM3P(N)
80.5 59.5
max. max.
3.5
24
61.5 max.
MM3P
7
81 max.
Terminal Arrangement (Bottom View)
MM3P
MM3PN
6, 12, 24, 50 VAC
MM3PN
6, 12, 24, 48 VDC
MM3PN
100/(110), 200/(220) VAC
100/110, 200/220 VDC
Note: Wire the terminals correctly with no mistakes in coil polarity.
13
MM
MM3PXP(N)
MM4P(N, -D)
MM4XP(N, -D)
Case-protection
plate
80.5 59.5
max. max.
3.5
24
79.5 max.
(See note 2.)
MM4P
7
81.5 max.
Note 1: As shown in the diagram, there are three 10-dia. holes in the side of the case for [email protected](N, -D).
2: When a case-protection plate is attached, the width of the Relay will be 80 mm max.
Terminal Arrangement (Bottom View)
MM3XP
Make sure that all common connections have the same polarity for the [email protected]/-D. The
markings of the common connections on the casing all show "+" but the polarity of the
common connections can be either negative or positive as long as they are all the same.
MM3XPN
MM3XPN
MM4P
MM4P-D
MM4PN
6, 12, 24, 50 VAC
MM4XP
MM3XPN
6, 12, 24, 48 VDC
6, 12, 24, 50 VAC
MM4XP-D
100/(110), 200/(220) VAC
100/110, 200/220 VDC
MM4PN
6, 12, 24, 48 VDC
MM4XPN
MM4XPN
6, 12, 24, 50 VAC
6, 12, 24, 48 VDC
MM4PN
100/(110), 200/(220) VAC
100/110, 200/220 VDC
MM4XPN
100/(110), 200/(220) VAC
100/110, 200/220 VDC
Note: Wire the terminals correctly with no mistakes in coil polarity.
14
MM
MM4P-JD
Terminal Arrangement
(Bottom View)
70.5 max.
59.5 max.
81.5 max.
79.5 max.
MM4XP-JD
70.5 max.
59.5 max.
81.5 max.
80 max.
Note: Make sure that all common connections
are the same in polarity. The markings of
the common connections on the casing
all show "+" but the polarity of the common connections can be either all negative or all positive.
■ Relays with Operation Indicators
Dimensions are the same as those for standard Relays except that there are three 10-mm holes in the case as shown below.
Accessories
■ Sockets
Relay model
DIN Track/Front-connecting Socket
(screw terminals)
Back-connecting Socket
(solder terminals)
MM2(X)P(-D)
8PFA
PL08
MM3P
11PFA
PL11
MM3XP, MM4(X)P(N)(-D)
14PFA
PL15
MM4(X)P-JD
14PFA
---
Note: When using the MM4(X)P-JD (i.e., a model conforming to auxiliary power relay specifications) by itself, the PL15 Back-connecting Socket
cannot be used.
Height with Socket
DIN Track/Front-connecting Socket
95.5 MM2(X)P
8PFA
92
113
MM3P
11PFA
Back-connecting Socket
MM3XP
110
109.5 113.5 MM4(X)
MM4(X)P-JD
14PFA
78
MM2(X)P
PL08
86
MM3P
PL11
MM3XP
86.5 MM4(X)P
PL15
15
MM
Safety Precautions
Refer to Safety Precautions for All Relays.
■ Connection
■ Soldering
• Use proper crimp terminals or 1.2- to 2-mm-dia. single-conductor
wire to connect screw terminals.
• Connect loads to DC-switching Relays so that arcs from adjacent
terminals will not strike each other. E.g., connect all common terminals to the same polarity.
• Screw Terminal Model:
Do not bend the coil terminals, otherwise the coil wire may be disconnected. Make sure that the tightening torque applied to each
terminal is 0.78 to 1.18 N·m and the insertion force is 49 N for 10 s.
• Do not reverse polarity when connecting open DC-switching
Relays, including 3- and 4-pole models.
When soldering solder terminals, do not let flux or other foreign matter adhere to contacts or do not let the coil terminals become bent.
Also, solder as quickly as possible because excessive heat may
damage the coil.
■ Installation
■ Storage
• Do not install the Relays where iron dust can adhere to the contacts
or coil. Such dust can prevent the armature from moving freely and
inhibit proper electrical contact.
• Relays can generate arcs externally. Either install the Relay in a
location where a nearby object will not burn or use a covered Relay.
• DC-switching Relays contain a permanent magnet in the insulation
base. Do not place a magnet or magnetic object near this base.
Doing so will reduce the power of the permanent magnet, thus
reducing Relay capacity.
• Insert PL Back-mounting Sockets from the back of the panel.
• To minimize the influence of heat, separate Relays from each other
by at least 20 mm for cooling when mounting multiple Relays
together.
A model for DC loads incorporates a permanent magnetic for arc
suppression. Keep floppy disks away from the Relay, otherwise the
data on the floppy disk may be damaged.
20 mm
min.
Top
MM
MM
Mounting orientation
Bottom
• Relays should be mounted with the armature facing down.
■ Wiring
When connecting a load to the contact terminals of a model for DC
loads, consider the polarity of the contact terminals so that the generated arcs on the adjacent poles will not collide. If the common connections of the Relay are all positive or all negative, no arc collision
will occur.
■ Diode Built into Relays
A diode is built into the Relays to absorb reverse electromotive force
from the relay coil. The diode will be destroyed if a large external surge
voltage is applied. If there is a possibility of a large external surge
voltage being applied, take suitable measures to absorb the surge.
■ Operating Environment
Do not use the Relay in places with flammable gas, otherwise an
explosion may result due to an arc generated from the Relay
■ Switching an AC Load with a
DC-switching Model (“X” Model)
DC-switching Relays (“X” models) use a magnet to extinguish arcs.
The polarity must be correct when you connect the switching section.
However, if you connect an AC load, the positive and negative poles
of the power supply alternate. This can cause short-circuits due to
the collision of arcs that occur when the Relay turns OFF.
Therefore, the switching capacity for an AC load is specified as 20 VA
or less to prevent short circuits caused by arc collisions.
Take sufficient caution if you switch an AC Load with a DC-switching
model (“X” models).
Common C
+
−
■ MMXP
The MMXP has a hole in the Relay case to allow gas to escape. Do
not use this Relay in locations subject to excessive dust.
■ Contact Loads
The contact load should be greater than the power consumption of
the coil. If it is less than this power consumption or if the Relay is
operated very infrequently, the contact can change chemically thus
causing unstable operation.
Arc collision
■ Refer to the technical guide on
your OMRON website for
technical descriptions and
FAQs on the product.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
In the interest of product improvement, specifications are subject to change without notice.
16
Terms and Conditions Agreement
Read and understand this catalog.
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you
have any questions or comments.
Warranties.
(a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship
for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron
disclaims all other warranties, express or implied.
(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT
NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER
ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE
PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE.
Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the
Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at
Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or
replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount
equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty,
repair, indemnity or any other claims or expenses regarding the Products unless Omron’s analysis confirms that the Products
were properly handled, stored, installed and maintained and not subject to contamination, abuse, misuse or inappropriate
modification. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies shall
not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or
electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice,
recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above
warranty.
See http://www.omron.com/global/ or contact your Omron representative for published information.
Limitation on Liability; Etc.
OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY.
Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted.
Suitability of Use.
Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the
combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable
third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself
is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine,
system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product
with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE
QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS,
AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE
OVERALL EQUIPMENT OR SYSTEM.
Programmable Products.
Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence
thereof.
Performance Data.
Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining
suitability and does not constitute a warranty. It may represent the result of Omron’s test conditions, and the user must correlate
it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability.
Change in Specifications.
Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our
practice to change part numbers when published ratings or features are changed, or when significant construction changes are
made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers
may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at
any time to confirm actual specifications of purchased Product.
Errors and Omissions.
Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is
assumed for clerical, typographical or proofreading errors or omissions.
2015.10
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2015 All Right Reserved.
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