Datasheet

G4A
PCB Power Relay
Miniature Single-pole Relay with
80A Surge Current and 20A
Switching Current
• Capable of Switching Motor Load of 80-A Surge Current and 20A
Switching/Cut-off Current
• Miniature, relay with high switching power and long endurance.
• Creepage distance conforms to UL and CSA standards.
• Highly noise-resistive insulation materials employed.
• Standard model available with flux protection construction.
RoHS Compliant
■Model Number Legend
■Application Examples
G4A-@@ -@ - @
—— — —
• Air conditioner
1 2 3 4
1. Number of Poles
1: 1-pole
2. Contact Form
A: SPST-NO (1a)
3. Terminal Shape
None : #250 quick-connect/
PCB coil terminals
P : PCB terminals/
PCB coil terminals
4. Special Function
E: For long endurance
G
4
A
■Ordering Information
■Characteristics
●Quick-connect/PCB coil terminals
Contact form Load Contact Terminal
SPST-NO
(1a)
#250 quick-connect
terminals
Coil terminal
Model
Rated voltage
Minimum
packing unit
PCB terminals
G4A-1A-E
12, 24 VDC
50 pcs/tray
Coil terminal
Model
Rated voltage
Minimum
packing unit
PCB terminals
G4A-1A-PE
12, 24 VDC
50 pcs/tray
●PCB terminals
Contact form Load Contact Terminal
SPST-NO
(1a)
PCB terminals
Note. When ordering, add the rated coil voltage to the model number.
Example: G4A-1A-E DC12
Rated coil voltage
However, the notation of the coil voltage on the product case as well as on the packing will be marked
as @@ VDC.
■Ratings
Destruction
●Coil
Item
Rated voltage
12 VDC
24 VDC
Rated
current
(mA)
75
37.5
Must operate voltage Must release voltage Max. permissible voltage
Coil
Power consumption
(V)
(V)
(V)
resistance
(W)
(Ω)
% of rated voltage
160
160%
70% max.
10% min.
0.9
(at 23°C)
640
Note 1. The rated current and coil resistance are
measured at a coil temperature of 23°C
with a tolerance of ±10%.
2. The inductances shown above are
reference values.
3. Operating characteristics are measured at
a coil temperature of 23°C.
4. Max. permissible voltage refers to the
maximum value in a varying range of
operating power voltage, not a continuous
voltage.
●Contacts
Contact type
Contact material
Rated carry current
Max. switching voltage
Max. switching current
Contact resistance *1
Operate time
Release time
Max.
operating Mechanical
frequency
Insulation resistance *2
Between coil
and contacts
Dielectric Between
strength
contacts of
the same
polarity
Impulse
withstand Between coil
and contacts
voltage
Insulation Between coil
distance
and contacts
●Motor Ratings
Malfunction
Shock
resistance
Destruction
Malfunction
Mechanical
Load conditions
Switching
frequency
Electrical
durability
Durability
250 VAC:
Inrush current: 80 A,
0.3 s (cosφ= 0.7)
Break current: 20 A
(cosφ = 0.9)
ON: 1.5 s
OFF: 1.5 s
200,000
operations
Failure rate (P level)
(reference value *3)
Ambient operating
temperature
Ambient operating humidity
Weight
●Inverter Ratings
Load conditions
Single
Ag-Alloy (Cd free)
20 A
250 VAC
20 A
Vibration
resistance
100 VAC:
Inrush current:
200 A (0.P)
Break current: 20 A
Switching
frequency
Electrical
durability
ON: 3 s
OFF: 5 s
30,000
operations
● Overload Durability (Reference Value)
Load conditions
Switching
frequency
Electrical
durability
250 VAC:
Inrush current: 80 A
Break current: 80 A
(cosφ = 0.7)
ON: 1.5 s
OFF: 99 s
1,500
operations
Motor load
Inverter load
100 mΩ max.
20 ms max.
10 ms max.
18,000 operations/hr
1,000 MΩ min.
4,500 VAC 50/60 Hz for
1 min
1,000 VAC 50/60 Hz for
1 min
8.5 kV 1.2 x 50
Clearance: 3.2 mm,
Creepage: 6.4 mm
10 to 55 to 10 Hz,
0.75 mm single amplitude
(1.5 mm double amplitude)
10 to 55 to 10 Hz,
0.75 mm single amplitude
(1.5 mm double amplitude)
1,000 m/s2
200 m/s2
2,000,000 operations min.
(at 18,000 operations/hr)
200,000 operations min.
(ON/OFF: 1.5 s)
30,000 operations min.
(ON: 3 s, OFF: 5 s)
100 mA at 5 VDC
-20°C to 60°C (with no icing
or condensation)
5% to 85%
Approx. 23 g
Note. The data given above are initial values.
*1. Measurement conditions: 5 VDC, 1 A, voltage
drop method.
*2. Measurement conditions: The insulation
resistance was measured with a 500 VDC
megohmmeter at the same locations as the
dielectric strength was measured.
*3. This value was measured at a switching
frequency of 120 operations/min.
1
G4A
PCB Power Relay
●Maximum Switching Capacity
G4A-1A-(P)E
●Durability
G4A-1A-(P)E
●Ambient Temperature vs.
Maximum Coil Voltage
G4A-1A-(P)E
Switching current (A)
Durability (x 104 operations)
Maximum coil voltage (%)
■Engineering Data
100
100
70
50
30
AC load
10
7
90
80
70
250 VAC resistive load
60
50
180
160
140
120
40
5
100
30
3
20
80
10
1
1
3
5
10
30 50
100
0
300 500 1,000
5
10
15
Switching voltage (V)
Must operate and must release voltage (ratio of rated voltage) (%)
G
4
A
0
10
20
30
40
Must Operating voltage
Must Recovery voltage
50
70
80
Note. The maximum coil voltage is the maximum
voltage that can be applied to the relay coil.
1,000
800
1,000
X
80
1,000
Z'
600
400
200
60
Test conditions: Shock is applied in ±X, ±Y, ±Z
directions three times each with
and without energizing the Relays
to check the number of
malfunctions.
Requirement: 200 m/s2
200
40
400
Z
1,000
20
800
contact A
0
-60
Shock direction
X
X'
X'
1,000
600
-40
-20
0
20
40
60
1,000
Y
Unit: m/s2
Y'
Z
Z'
Y'
80 100
Ambient temperature (°C)
■Dimensions
#250 quick-connect/PCB coil terminals
G4A-1A-E
Mounting Holes
(Bottom View)
30.5 max.
(30.1)*
Four, 1.8+0.1
0 dia.
16 max.
(15.7)*
6.25±0.1
5.75±0.1
0.8
0.8
12±0.05
6.35
22±0.1
27.6±0.1
8
2
Terminal Arrangement/Internal Connections
(Top View) (Bottom View)
3.4
23.5 max.
(23.3)*
4
3
3
0.3
1.5
3.5
1
1.5
0.8
1
4
2
* Average value
Tab Terminal
PCB Terminal
(No coil polarity)
Straight PCB/PCB coil terminals
G4A-1A-PE
PCB Mounting Holes
(Bottom View)
30.5 max.
(30.1)*
Four, 1.8+0.1
0 dia.
9.4
16 max.
(15.7)*
6.25±0.1
5.75±0.1
12±0.05
22±0.1
27.6±0.1
26.8 max.
23.3 (26.5)*
Terminal Arrangement/
Internal Connections
(Bottom View)
4
0.3
2
60
Ambient temperature (°C)
●Shock Malfunction
G4A-1A-(P)E
Number of Relays: 5 pcs
Y
Sample:
G4A-1A-E DC12V
Number of Relays: 5 pcs
0
-25
25
Switching current (A)
●Ambient Temperature vs. Must
Operate and Must Release Voltages
G4A-1A-(P)E
100
20
1.5
3.5
1
1.5
0.8
1
* Average value
3
2
(No coil polarity)
G4A
PCB Power Relay
■Approved Standards
●The rated values approved by each of the safety standards may be different from the performance characteristics individually defined
in this datasheet.
UL Recognized
Model
G4A-1A-E
G4A-1A-PE
Number of
poles
SPST-NO
(1a)
CSA Certified
(File No. E41643)
Coil ratings
Contact ratings
Number of test
operations
20 A, 250 VAC (Resistive)
40°C
15 A, 30 VDC (Resistive)
12 to 24 VDC 40°C
23 A, 277 VAC (General
Purpose) 40°C
TV-15 120 V AC 40°C
Model
(File No. LR31928)
Number of
poles
100,000
G4A-1A-E
G4A-1A-PE
SPST-NO
(1a)
30,000
25,000
Coil ratings
20 A, 250 VAC (Resistive)
40°C
15 A, 30 VDC (Resistive)
12 to 24 VDC 40°C
23 A, 277 VAC (General
Purpose) 40°C
TV-15 120 V AC 40°C
EN/IEC, VDE Certified
Model
G4A-1A-E
G4A-1A-PE
Number of
poles
SPST-NO
(1a)
Contact ratings
Number of test
operations
10,000
30,000
25,000
(Certificate No. 107293)
Coil ratings
Contact ratings
Number of test
operations
12, 24 VDC
20 A, 250 VAC (cosφ=1.0)
50°C
100,000
■Precautions
●Please refer to “PCB Relays Common Precautions” for correct use.
Correct Use
●Mounting
• When mounting more than two Relays
side by side, keep a 3 mm gap
horizontally and vertically between
Relays to ensure a good heat
dissipation. It may cause a malfunction
if heat is not dissipated smoothly from
the Relay.
●Terminals
• The terminals fit FASTON receptacle
250 and are suitable for positive-lock
mounting. Use only Faston terminals
with the specified numbers.
Select leads for connecting Faston
receptacles with wire diameters that
are within the allowable range for the
load current.
Do not apply excessive force to the
terminals when mounting or
dismounting the Faston receptacle.
Insert and remove terminals carefully
one at a time. Do not insert terminals
at an angle, or insert/remove multiple
terminals at the same time.
Refer to the following table for
recommendations of connectors made
by OMRON.
Type
#250 terminals
(width: 6.35 mm)
Receptacle
terminals
XT3W-S441-12
XT3W-S442-12
XT3W-S443-12
●Other Precautions
• This Relay is suitable for power load
switching of air-conditioning
compressors and power supplies, etc.
Do not use the G4A to switch micro
loads less than 100 mA, such as in
signal applications.
Housing
XT3B-1S white
3
G
4
A
G4A
PCB Power Relay
G
4
A
• Application examples provided in this document are for reference only. In actual applications, confirm equipment functions and safety before using the product.
• Consult your OMRON representative before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad
systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems or equipment that may have a serious
influence on lives and property if used improperly. Make sure that the ratings and performance characteristics of the product provide a margin of safety for the system or
equipment, and be sure to provide the system or equipment with double safety mechanisms.
Note: Do not use this document to operate the Unit.
OMRON Corporation
Electronic and Mechanical Components Company
4
Contact: www.omron.com/ecb
Cat. No. J056-E1-08
0516(0207)(O)
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