G4A
■Model Number Legend
G4A-@@-@ -@
————
12 3 4
1. Number of Poles
1: 1-pole
2. Contact Form
A: SPST-NO (1a)
■Application Examples
• Air conditioner
3. Terminal Shape
None : #250 quick-connect/
PCB coil terminals
P : PCB terminals/
PCB coil terminals
4. Special Function
E: For long endurance
■Characteristics
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.
Contact resistance *1 100 mΩ max.
Operate time 20 ms max.
Release time 10 ms max.
Max.
operating
frequency
Mechanical 18,000 operations/hr
Insulation resistance *2 1,000 MΩ min.
Dielectric
strength
Between coil
and contacts
4,500 VAC 50/60 Hz for
1min
Between
contacts of
the same
polarity
1,000 VAC 50/60 Hz for
1min
Impulse
withstand
voltage
Between coil
and contacts
8.5 kV (1.2 x 50
μ
s)
Insulation
distance
Between coil
and contacts
Clearance: 3.2 mm,
Creepage: 6.4 mm
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,
0.75 mm single amplitude
(1.5 mm double amplitude)
Shock
resistance
Destruction 1,000 m/s
2
Malfunction 200 m/s
2
Durability
Mechanical
2,000,000 operations min.
(at 18,000 operations/hr)
Resistive
load
100,000 operations min.
(ON/OFF: 1 s)
Motor load
200,000 operations min.
(ON/OFF: 1.5 s)
Inverter load
30,000 operations min.
(ON: 3 s, OFF: 5 s)
Failure rate (P level)
(reference value *3)
100 mA at 5 VDC
Ambient operating
temperature
-20°C to 60°C (with no icing
or condensation)
Ambient operating humidity 5% to 85%
Weight Approx. 23 g
■Ordering Information
●Quick-connect/PCB coil terminals
●PCB terminals
■Ratings
●Coil
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 form Load Contact Terminal Coil terminal Model Rated voltage
Minimum
packing unit
SPST-NO
(1a)
#250 quick-connect
terminals
PCB terminals G4A-1A-E 12, 24 VDC 50 pcs/tray
Contact form Load Contact Terminal Coil terminal Model Rated voltage
Minimum
packing unit
SPST-NO
(1a)
PCB terminals PCB terminals G4A-1A-PE 12, 24 VDC 50 pcs/tray
Item
Rated voltage
Rated
current
(mA)
Coil
resistance
(
Ω
)
Must operate voltage
(V)
Must release voltage
(V)
Max. permissible voltage
(V)
Power consumption
(W)
% of rated voltage
12 VDC 75 160
70% max. 10% min.
160%
(at 23°C)
0.9
24 VDC 37.5 640
Load
Item
Resistive load
Contact type Single
Contact material Ag-Alloy (Cd free)
Rated load 20 A at 250 VAC
Rated carry current 20 A
Max. switching voltage 250 VAC
Max. switching current 20 A
Note. When ordering, add the rated coil voltage to the model number.
Example: G4A-1A-E DC12
However, the notation of the coil voltage on the product case as well as on the packing will be marked
as @@ VDC.
Rated coil voltage
●Motor Ratings
●Inverter Ratings
●
Overload Durability (Reference Value)
Load conditions
Switching
frequency
Electrical
durability
250 VAC:
Inrush current: 80 A,
0.3 s (cos
φ
= 0.7)
Break current: 20 A
(cos
φ
= 0.9)
ON: 1.5 s
OFF: 1.5 s
200,000
operations
Load conditions
Switching
frequency
Electrical
durability
100 VAC:
Inrush current:
200 A (0.P)
Break current: 20 A
ON: 3 s
OFF: 5 s
30,000
operations
Load conditions
Switching
frequency
Electrical
durability
250 VAC:
Inrush current: 80 A
Break current: 80 A
(cos
φ
= 0.7)
ON: 1.5 s
OFF: 99 s
1,500
operations
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
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G4A PCB Power Relay
Durability (x 10
4
operations)
250 VAC resistive load
Switching current (A)
2520151050
100
90
80
70
60
50
40
30
20
10
Z
Z
Z'
Z'
Shock direction
Unit: m/s
2
Y
Y
Y'
Y'
X
X
X'
X'
1,000
1,000
1,000
1,000
1,000
1,000
200
400
600
600
400
200
800
800
contact A
#250 quick-connect/PCB coil terminals
G4A-1A-E
Terminal Arrangement/Internal Connections
(Top View) (Bottom View)
Mounting Holes
(Bottom View)
(No coil polarity)
Straight PCB/PCB coil terminals
G4A-1A-PE
PCB Mounting Holes
(Bottom View)
(No coil polarity)
Terminal Arrangement/
Internal Connections
(Bottom View)
■Engineering Data
●Maximum Switching Capacity
G4A-1A-(P)E
100
70
50
30
Switching current (A)
10
7
5
3
1
1 3 5 10 30 50 100 300 500 1,000
AC load
Switching voltage (V)
●Ambient Temperature vs. Must
Operate and Must Release Voltages
G4A-1A-(P)E
100
Sample:
G4A-1A-E DC12V
Number of Relays: 5 pcs
80
Must Operating voltage
Must Recovery voltage
G
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60
A
40
20
0
-60 -40 -20 0 20 40 60 80 100
Must operate and must release voltage (ratio of rated voltage) (%)
Ambient temperature (°C)
■Dimensions
●Durability
G4A-1A-(P)E
●Shock Malfunction
G4A-1A-(P)E
Number of Relays: 5 pcs
●Ambient Temperature vs.
Maximum Coil Voltage
G4A-1A-(P)E
180
160
140
Maximum coil voltage (%)
120
100
80
0
-25 0 10 20 30 40 50 60 70 80
Note. The maximum coil voltage is the maximum
voltage that can be applied to the relay coil.
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/s
Ambient temperature (°C)
2
2
30.5 max.
(30.1)*
16 max.
(15.7)*
0.80.8
8
3.4
2
1
1.50.3
3.5
1.5
0.8
30.5 max.
(30.1)*
6.35
23.5 max.
* Average value
(23.3)*
9.4
16 max.
(15.7)*
3
Tab Terminal PCB Terminal
26.8 max.
23.3
(26.5)*
1
1.50.3
3.5
1.5
0.8
* Average value
+0.1
Four, 1.8
dia.
0
6.25
5.75
±0.05
12
±0.1
22
±0.1
27.6
12
4
+0.1
Four, 1.8
dia.
0
6.25
5.75
±0.05
12
±0.1
22
±0.1
27.6
34
12
±0.1
±0.1
34
±0.1
±0.1
G4A PCB Power Relay
UL Recognized (File No. E41643) CSA Certified (File No. LR31928)
EN/IEC, VDE Certified (Certificate No. 107293)
Model
Number of
poles
Coil ratings Contact ratings
Number of test
operations
G4A-1A-E
G4A-1A-PE
SPST-NO
(1a)
12 to 24 VDC
20 A, 250 VAC (Resistive)
40°C
100,000
15 A, 30 VDC (Resistive)
40°C
23 A, 277 VAC (General
Purpose) 40°C
30,000
TV-15 120 V AC 40°C 25,000
Model
Number of
poles
Coil ratings Contact ratings
Number of test
operations
G4A-1A-E
G4A-1A-PE
SPST-NO
(1a)
12 to 24 VDC
20 A, 250 VAC (Resistive)
40°C
10,000
15 A, 30 VDC (Resistive)
40°C
23 A, 277 VAC (General
Purpose) 40°C
30,000
TV-15 120 V AC 40°C 25,000
Model
Number of
poles
Coil ratings Contact ratings
Number of test
operations
G4A-1A-E
G4A-1A-PE
SPST-NO
(1a)
12, 24 VDC
20 A, 250 VAC (cos
φ
=1.0)
50°C
100,000
●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.
●Terminal s
• 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.
●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.
Correct Use
Ty p e
Receptacle
terminals
Housing
#250 terminals
(width: 6.35 mm)
XT3W-S441-12
XT3W-S442-12
XT3W-S443-12
XT3B-1S white
■Approved Standards
●The rated values approved by each of the safety standards may be different from the performance characteristics individually defined in
this datasheet.
■Precautions
●Please refer to “PCB Relays Common Precautions” for correct use.
G
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G4A PCB Power Relay
• 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.
OMRON Corporation
Electronic and Mechanical Components Company
Contact: www.omron.com/ecb
Cat. No. J056-E1-09
1116(0207)(O)
Note: Do not use this document to operate the Unit.
G
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