Power Relay
G2A
Highly Reliable, 4-pole Miniature Relay Ideal
for Sequence Control
• Card lift-off employed for greater life and stable quality.
• Long endurance and stable quality are assured by card lift-off
system.
• Mounting interchangeability with MY-series Relays.
• Operation indicator mechanism incorporated for at-a-glance
monitoring of ON/OFF operation. In addition, a built-in operation
indicator model is also included in this Relay Series.
Ordering Information
Classification
Standard model
Arc barrier equipped model
Built-in diode model
Built-in operation indicator model
Built-in operation indicator and diode model
UL-
approved
model
Standard model
Arc barrier equipped model
Plug-in terminals/Solder terminals
G2A-432A
G2A-432AY
G2A-432A-D
G2A-432A-N
G2A-432A-N1
G2A-432A-US
G2A-432AY-US
G2A-4321P
---
G2A-4321P-D
---
---
G2A-4321P-US
---
PCB terminals
Note:
1. When placing your order, add the coil voltage rating listed in the specifications to the model number as shown below.
Example: G2A-432A 100/110 VAC
Rated coil voltage
2. Built-in diode model and the operating coil of the G2A-432A-N1 are available only with DC ratings.
3. The Latching Relay (G2AK) and Fully sealed Relay (G2A-434A) developed based on the G2A are also available in this se-
ries.
Model Number Legend
G2A-@@@@@-@
1
2
3 4
5
6
1. Number of Poles and Contact Form
4:
4PDT
2. Contact Type
3:
Crossbar bifurcated
3. Enclosure Construction
2:
Casing
4. Terminal Shape
A:
Plug-in
1P:
PCB
5. Safety Breaking Mechanism
None: No
Y:
Arc barrier
6. Special Element
None: Standard
D:
Built-in diode
N:
Built-in operation indicator
N1:
Built-in operation indicator and diode
US:
UL-approved
Note: 1.
The coil of the G2A-432A-N1 or a built-in diode model operates with DC only.
2.
The G2A Series include the G2A-434A Power Relay and G2AK Latching Relay. Refer to
G2A-434
and
G2AK
for details.
3.
Built-in indicator models satisfying international standards are available. Contact your OMRON representative for details.
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1
G2A
■
Relays Other than Standard Models
Arc barrier equipped
G2A-432AY
The arc barrier equipped model is
a relay designed to prevent arc
short-circuiting between phases
and can be used in a circuit which
has potential difference between
phases. The switching power of
such a circuit with potential differ-
ence must be limited to less than
1/2 the rated load when using this
Relay.
Built-in diode
G2A-432A-D
The built-in diode model is a relay
which incorporates a diode for ab-
sorption of the reverse voltage
that may be generated when the
coil is de-energized. Because the
release time of this model is long-
er than the standard model, pay
adequate attention to this point in
designing a circuit. Also, pay at-
tention to the + polarity of the coil.
The reverse-breakdown voltage
of the diode is 1,000 V.
Built-in operation indicator
G2A-432A-N
The built-in operation indicator
model has a newly added opera-
tion indicator to the conventional
operation indication mechanism
and facilitates operation monitor-
ing without being affected by am-
bient illumination.
With the -N model (rated at 16,
12, 24, and 48 VDC) and -N1
model rated at 6, 12, 24, 48, and
100 VDC), pay attention to the +
polarity of the coil.
■
Accessories
Sockets
Track mounting
Screw terminals
Front-connecting
Socket
Solder terminals
Without Hold-
down Clip
PYF14A
PYF14(-E), PYF14A-
TU, PYF14T
PY14, PY14-3
(see note)
With Hold-down
Clip
PY14-Y2
Wire-wrap terminals
Without Hold-
down Clip
PY14QN(2)
With Hold-down
Clip
PY14QN(2)-Y2
PCB
terminals
PY14-0,
PY14-02
Note:
With monitor terminal.
Relay Hold-down Clips
For Front-connecting Socket
For Back-connecting Socket
For Socket Mounting Plate
PYC-A2
PYC-3/PYC-5
PYC-2
Socket Mounting Plates
For one Socket
For 18 Sockets
For 36 Sockets
PYP-1
PYP-18
PYP-38
Specifications
■
Coil Ratings
The rated currents for some of the built-in operation indicator models differ from the values given in this table. Refer to note 5 below.
Rated
voltage
Rated current
50 Hz
6 VAC
12 VAC
24 VAC
50 VAC
100/
110 VAC
200/
220 VAC
6 VDC
12 VDC
24 VDC
48 VDC
100 VDC
295 mA
148 mA
73 mA
35 mA
17.7/
21.4 mA
8.9/
10.8 mA
176 mA
88 mA
45 mA
22 mA
11.4 mA
60 Hz
233 mA
117 mA
58 mA
28 mA
14/
16.8 mA
7/8.4 mA
8.9
Ω
34
Ω
136
Ω
530
Ω
2,200
Ω
8,800
Ω
34
Ω
136
Ω
530
Ω
2,200
Ω
8,800
Ω
Coil
resistance
Coil inductance (ref.
value)
Armature
OFF
0.048 H
0.166 H
0.691 H
3.08 H
12.42/
12.38 H
42.2/
41.8 H
0.14 H
0.6 H
2.7 H
11 H
43 H
Armature
ON
0.065 H
0.257 H
1.04 H
4.53 H
18/16.4 H
72/65.5 H
0.26 H
1.0 H
4.6 H
19 H
73 H
10 % min.
110 %
Approx. 1.1 W
Must
operate
Must
release
Max.
voltage
Power
consumption
% of rated voltage
80 % max. 30 % min.
110 %
Approx. 1.4 VA
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 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.
For built-in operation indicator models rated at 6, 12, and 24 VDC, add an LED current of approx. 5 mA to the rated currents.
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2
G2A
■
Contact Ratings
Load
Contact type
Contact material
Rated load
Rated carry current
Max. switching power
Movable:
Fixed:
Resistive load (cosφ = 1)
Crossbar bifurcated
AgAu-clad AgPd
AgPd
0.2 A at 110 VAC
0.3 A at 24 VDC
Inductive load (cosφ = 0.4) (L/R = 7 ms)
0.3 A at 110 VAC
0.5 A at 24 VDC
3A
250 VAC, 125 VDC
■
Characteristics
Classification
Contact resistance
(see note 2)
Operate time (see note 3)
Release time (see note 3)
Max. operating frequency
Insulation resistance
(see note 4)
Dielectric strength
Vibration resistance
Shock resistance
Error rate (level P)
(Reference value)
(see note 6)
Endurance
Standard/Acr barrier equipped/Built-in operation Built-in diode/Built-in operation indicator models
indicator models (G2A-@-N)
(G2A-@-N1)
100 mΩ max.
15 ms max.
15 ms max.
Mechanical: 18,000 operations/hour
Electrical: 1,800 operations/hour (under rated load)
100 MΩ min. (at 500 VDC)
1,500 VAC, 50/60 Hz for 1 min between coil and contacts and contacts of different polarities (700 VAC be-
tween contacts of same polarity)
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)
Destruction: 1,000 m/s
2
Malfunction: 100 m/s
2
1 mA at 100 mVDC
30 ms max.
Mechanical:
Electrical:
100,000,000 operations min. (at operating frequency of 18,000 operations/hour)
5,000,000 operations min. (under rated load and at operating frequency of
1,800 operations/hour) (see note 5)
Ambient temperature
Ambient humidity
Weight
Operating:–10°C to 40°C (with no icing or condensation)
Operating:5% to 85%
Approx. 38 g
Note: 1.
The data shown above are initial values.
2.
The contact resistance was measured with 0.1 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.
■
Approved by Standards
UL508 (File No. E41515)
Model
G2A-@-US
Coil ratings
6 to 120 VAC
6 to 120 VDC
Contact ratings
1 A 120 VAC (resistive load)
1 A 30 VDC (inductive load)
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G2A
Engineering Data
Maximum Switching Power
Endurance
Endurance (x10
3
operations)
10,000
5,000
24-VDC resistive load
24-VDC
inductive load
L/R = 7 ms
Switching current (A)
DC resistive load
AC resistive load
AC inductive load
(cosφ = 0.4)
1,000
500
100
50
110-VAC
resistive load
110-VAC
inductive load
cosφ = 0.4
DC inductive load
L/R = 7 ms
10
Switching voltage (V)
Switching current (A)
Ambient Temperature vs.
Must-operate and Must-release
Voltage
G2A AC (60 Hz)
Must-operate and reset voltage (%)
Number of Relays: 5
Must-operate
voltage
Must-release
voltage
Ambient Temperature vs.
Coil Temperature Rise
G2A 110 VAC (50 Hz)
Coil temperature rise (
°
C)
Number of Relays: 5
Contact
carry current
Malfunctioning Shock
G2A-432A 100/110 VAC
Not energized
Energized
Ambient temperature (°C)
Ambient temperature (°C)
Shock direction
Unit: m/s
2
G2A DC
Number of Relays: 5
G2A DC
Must-operate
voltage
Must-release
voltage
Number of Relays: 5
Contact
carry current
Must-operate and reset voltage (%)
Coil temperature rise (
°
C)
Number of samples = 5
Measurement conditions: Impose a shock of
100 m/s
2
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.
Ambient temperature (°C)
Ambient temperature (°C)
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4
G2A
Contact Reliability
(JIS C 4530 Allen-Bradley Test Circuit)
100 VAC
λ60
Contact Reliability
(Improved Allen-Bradley Test Circuit)
Contact load: 1 mA at 5 VDC (resistive load)
Failure criterion contact resistance: 100
Ω
Contact resistance (m
Ω
)
Carry contact
Break contact
Make contact
Self-holding
contact
λ60
24 VDC
Contact resistance (m
Ω
)
Carry contact
Break contact
Make contact
Self-holding
contact
λ60
Contact resistance (m
Ω
)
=
0.00153
×
10
−6
=
0.00153
×
10
−6
=
0.00153
×
10
−6
Carry contact
Break contact
Make contact
Self-holding
contact
Operations (x 10
4
)
Operations (x 10
4
)
Operations (x 10
4
)
(Unit: mA)
Model
Specifications
1
G2A-432A 100 VAC, 60 Hz
24 VDC
14
45
28
90
No. of Relays
2
3
42
135
5
70
225
10
140
450
Life (x10
4
)
Coil Self-load Life Curve
100 VAC
24 VDC
Number of Relays
Relay Mounting Adjacent Distance vs. Coil Temperature Rise
G2A-432A 24 VDC
Coil temperature rise (
°
C)
Condition: The
saturated coil
temperature is
measured with rated
coil voltage
(24 VDC) imposed.
Coil temperature rise (
°
C)
Relay
mounting
position
110 VAC
Upper
Condition: The saturated
coil temperature is
measured with rated
voltage (110 VAC) at 60 Hz
imposed.
Relay
mounting
position
Upper
Lower
Average of No. 1 and No. 3
Average of No. 4. and No. 6
Lower
Average of No. 7 and No. 9
Average of No. 1 and No. 3
Average of No. 4. and No. 6
Average of No. 7 and No. 9
Mounting adjacent distance
l
(mm)
Mounting adjacent distance
l
(mm)
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5
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