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Ratchet Relay
G4Q
CSM_G4Q_DS_E_3_2
Unique Ratchet Mechanism Assures Positive
Alternate Transfer/Switching Operation
• Each contact in the double-pole contact mechanism performs
alternate make-brake operation at each pulse input and is thus
ideal for alternate operation or transfer/switching operation of a
motor.
• Positive operation is assured due to the unique ratchet mechanism.
• Satisfies dielectric strength of 2,000 VAC.
• Low power consumption.
(AC: approx. 6.4 VA; DC: approx. 3.9 W)
Ordering Information
When your order, specify the rated voltage.
Open Models
Plug-in Models
Item
DPDT
Model
Basic model
G4Q-211A
Item
DPDT
Rated voltage
24 VAC
Model
Basic model
G4Q-212S
Rated voltage
12 VAC
50 VAC
24 VAC
100/(110) VAC
50 VAC
200/(220) VAC
100/(110) VAC
12 VDC
200/(220) VAC
24 VDC
12 VDC
100 VDC
24 VDC
100 VDC
200 VDC
Note:
When ordering, add the rated coil voltage (listed in Specifications) to the model number.
Example: G4Q-211A, 24 VAC
Rated coil voltage
Model Number Legend
G4Q-@@@@
1
2 3
4
1. Contact Form
2:
DPDT
2. Contact Type
1:
Single
3. Enclosure Construction
1:
No casing
2:
Casing
4. Terminal Shape
A:
Solder
S:
Plug-in
1
G4Q
■ Accessories (Order Separately)
DIN track/Front-connecting Socket
Back-connecting Socket
Screw terminal
Solder terminal
8PFA1
PL08
Specifications
■ Coil Ratings
Item
Current (mA)
Rated voltage (V)
AC
50 Hz
614
531
2.24
24
307
266
8.7
50
148
128
42.7
100/
(110)
74
64/73.5
160
200/
(220)
37
32/36.8
671
Item
Current (mA)
50 Hz
Must release
Max. voltage
% of rated voltage
12
Rated voltage (V)
DC
Resistance (Ω) Must operate
60 Hz
80 % max.
Resistance (Ω) Must operate
60 Hz
10 % min.
110 % max.
Must release
Power consumption
Initial
Max. voltage
Approx.
13.5 VA
Rated
Approx.
6.4 VA
Power consumption
% of rated voltage
12
320
37.5
24
155
155
100
39
2,580
200
19.2
10,400
5 % min.
Approx. 3.9 W
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 for reference only.
3. Performance characteristic data is 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 AC power consumption is measured at 60 Hz.
■ Contact Ratings
Load
Resistive load
(cosφ = 1)
Inductive load
(cosφ = 0.4)
(L/R = 7 ms)
Rated load
5 A at 220 VAC, 5 A at 24 VDC
3 A at 220 VAC, 4 A at 24 VDC
Rated carry current
5A
Max. switching voltage
250 VAC, 250 VDC
Max. switching current
5A
Contact mechanism
Single
Contact material
Silver alloy
2
G4Q
■ Characteristics
Contact resistance (See note 2.)
50 mΩ max.
Operate time (See note 3.)
60 ms max.
Max. operating frequency
Mechanical:
Electrical:
Insulation resistance (See note 4.)
100 MΩ min. (at 500 VDC)
Dielectric strength
2,000 VAC, 50/60 Hz for 1 min between coil and contact (1,000 VAC, 50/60 Hz for 1 min between contacts of same polarity) (2,000 VAC between contacts of different polarities)
Vibration resistance
Destruction:
Malfunction:
10 to 55 to 10 Hz, 0.75 mm single amplitude (1.5 mm double amplitude)
10 to 55 to 10 Hz, 0.5 mm single amplitude (1.0 mm double amplitude)
Shock resistance
Destruction:
Malfunction:
500 m/s2
100 m/s2
Endurance
Mechanical:
Electrical:
5,000,000 operations min. (at operating frequency of 1,200 operations/hr)
500,000 operations min. (under rated load and at operating frequency of
1,200 operations/hr) (See note 5.)
Error rate (See note 6.)
1 A at 5 VDC (0.1 A at 5 VDC)
1,200 operations/hr
1,200 operations/hr (under rated load)
Ambient temperature
Operating:
Ambient humidity
Operating:
–10°C to 55°C (with no icing or no condensation)
5% to 85%
Weight
Open model:
Approx. 240 g; cased model: Approx. 340 g
Note: 1.
2.
3.
4.
The data shown above are initial values.
The contact resistance was measured with 0.1 A at 5 VDC using the voltage drop method.
The operate time was measured with the rated voltage imposed with any contact bounce ignored at an ambient temperature of 23°C.
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. The value in parentheses is for the cased model.
Engineering Data
Switching current (A)
DC resistive load
AC resistive load
AC inductive load
(cosφ = 0.4)
DC inductive load
L/R = 7 ms
Electrical Endurance
Endurance (x103 operations)
Maximum Switching Power
10,000
7,000
5,000
3,000
1,000
700
500
220 VAC resistive load
24 VDC resistive load
24VDC inductive load
L/R = 7 ms
300
100
70
50
220 VAC inductive load
(cosφ = 0.4)
30
Switching voltage (V)
Switching current (A)
3
G4Q
Ambient Temperature vs.
Coil Temperature Rise
Malfunctioning Shock
24 VDC
Contact carry current: 5 A
Coil temperature rise ( °C)
Coil temperature rise ( ° C)
100 VAC 50 Hz
Contact with no carry current
Contact carry current: 5 A
Contact with no carry current
Not
energized
Energized
Ambient temperature (°C)
Unit: m/s2
Ambient temperature (°C)
Shock direction
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.
Operation
Operation Timing Chart
100 ms min.
Coil terminal
Contact terminal
(NO) (1−3, 8−6)
Contact terminal
(NC) (1−4, 8−5)
Note: When a pulse for application to the coil is used, such a pulse
should have a width of 100 ms or more. If a pulse is applied with
a width less than the operate time, the cam may fail to rotate
fully.
Dimensions
Note: All units are in millimeters unless otherwise indicated.
Terminal Arrangement/
Internal Connections
Open Model
G4Q-211A
Mounting Holes
58±0.2
66.5 max. 58
Four, 3.5-dia.
mounting holes
25
56 max.
25±0.2
65 max.
Four, M3 mounting
screw holes or four
3.5-dia. holes
4
G4Q
Plug-in Terminal Model
G4Q-212S
Terminal Arrangement/
Internal Connections
(Bottom view)
3.5
92.5
max.
71.5
max.
30.5
7
80 max.
63.5 max.
Relay Mounting Height with Socket
With Front-connecting
Socket
102
G4Q212S
100
8PFA1
With Back-connecting
Socket
80
G4Q212S
PL08
Safety Precautions
Refer to Safety Precautions for All Relays.
■ Surface Mounting Socket
Be sure to provide a mounting space according to the width of the
Relay. The width of the Relay is 63.5 mm and the width of the Socket
is 51 mm.
■ Mounting
Mount the Relay so that the coil faces upward and the cam faces
downwards with the mounting plate secured vertically. Do not
change the cam angle.
Make sure that Relay terminals are free of flux or any other foreign
substance before soldering the Relay terminals.
Coil
Cam
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.
5
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Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you
have any questions or comments.
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ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE
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Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence
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Performance Data.
Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining
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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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