Reset Rocker Switch
A8G
Rocker Switch with External Reset
Function for High capacity Switching
• Energy-saving reset function triggered with
external signals.
• Incorporates unique switching mechanism
switching 20 A with excellent inrush-current
durability.
• Double-pole, double-throw (DPDT) contact.
• Contact gap of 3 mm minimum.
• UL and cUL standard approved.
Conforms to EN standards.
RoHS Compliant
Caution
Refer to Precautions
■List of Models
DPDT
4
Contact Form
5
6
–
1
2
3
Color of cases
Black
Cap color
Black
Model
Quantity
per box
+
50
A8G-107-1-24
■Ratings
Rated load
250 VAC
Non-inductive
Inductive
Resistive load
Lamp load
Inductive load
Motor load
20A
10A
8A
8A
Note: 1. The non-inductive lamp load has an inrush current 10 times steady current.
2. The inductive load has a power factor of 0.4 minimum (AC).
3. The motor load has an inrush current 6 times steady current.
The above ratings were tested under the following conditions:
1. Ambient temperature: 20±2 °C
2. Ambient humidity: 65±5 %RH
3. Switching frequency: 7 times/min.
Reset Coil
Rated voltage
(operating voltage range)
24 VDC±10%
(21.6 to 26.4 VDC)
Reset voltage
(coil temperature:
20°C±2°C)
Rated energized current
(coil temperature:
20°C±2°C)
Coil resistance
(coil temperature:
20°C±2°C)
Permissible voltage
applied period
21.6 V max.
185 mA±20%
130 Ω±20%
100 ms for min 1 s max.
Note: 1. Current must not flow for more than 10 s, otherwise the performance of the coil may be affected.
2. If a semiconductor element is used to control the reset coil, the residual voltage caused by leakage current must be 2.4 VDC max.
1
A8G
A8G
■Approved Standards
UL, cUL (UL 1054/CSA C22.2 No.55)
20A 250 VAC
KEMA (EN61058-1)
20(8)A 250 VAC
■Characteristics
Permissible operating
frequency
Mechanical
20 operations/min max.
Electrical
Switching frequency: 7 times/min.; Coil operation: 7 times/min.
Insulation resistance
100 MΩ min. (500 VDC)
Between terminals
2,000 VAC, 50/60 Hz, for 1 min
of the same polarity
Dielectric strength
Vibration resistance
Shock resistance
Durability
Between terminals
of the different
polarity
2,000 VAC, 50/60 Hz, for 1 min
Between charged
metal parts and the
ground terminal
4,000 VAC, 50/60 Hz, for 1 min
Malfunction
10 to 55 Hz, 1.5-mm double amplitude
Malfunction
98 m/s2 (10G)
Destruction
500 m/s2 (50G) max.
Mechanical
Switching operation 100,000 times min.
Electrical
Switching operation 50,000 times min.
Contact release time (see note)
100 ms max.
Ambient operating temperature
-10 to +55 °C (with no icing or condensation)
Ambient operating humidity
45 to 85 %RH
Note: For the codition in individual standard, contact your OMRON sales representative.
Contact release time is the period of time during which contacts 1 and 2 and contacts 4 and 5 are released after voltage is imposed on the coil.
■Operation
No excitation, load 1 turned off, and
load 2 turned on
No excitation, load 1 turned on, and
load 2 turned off
Moving iron
Automatic reset
Manual operation
Iron core
Permanent
magnet
Coil
4
5
6
Power supply
Load 1
4
Load 2
1
2
3
The coil is exited and the moving
iron is reset with the reset spring.
The pernanent magnet keeps the
moving iron and iron core in contact.
Reset spring
Power supply
Operation
Circuit
configuration
Excitation, load 1 turned off, and
load 2 turned on
5
4
6
Load 1
Load 2
1
2
3
Power supply
Item
5
6
Load 1
Load 2
1
2
3
24 VDC applied to coil terminal
2
A8G
A8G
■Dimensions
(Unit: mm)
A8G
37
31
27
20.8
2
8.6
22.5
33
11.1
11.1
34±0.3
#250 Quick connect terminal (t = 0.8)
(Contact terminal)
19.5
23.6±0.3
# 110 Quick connect terminal (t = 0.5)
(Coil terminal)
Note: Unless otherwise specified, a tolerance of ±0.8 mm applies to all dimensions.
■Operating Characteristics
Operating force (OF) max.
19.6 N {2,000 gf}
■Panel Cutout
X
Y
Panel thickness
1.6 to 3.0 mm
X
Y
34.4+0.2
mm
0
24.4+0.3
mm
0
Note: Recommended panel material: SPCC
Consult your OMRON representative when using a panel with a thickness other than the above.
Play R
Edge
When processing the panel, be sure that the Play R is on the switch operation side.
Be sure that the Edge is on the reverse side of panel when processing.
■Contact Form
4
5
6
1
2
3
1 to 6:Contact terminals
-, +: Coil terminals
Note: When 24 VDC is applied to the coil, contacts 2 and 3 and contacts 5 and 6 are ON.
3
A8G
A8G
■Precautions
Be sure to read the Safety precautions common to all Rocker Switches for correct use.
• 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
Contact: www.omron.com/ecb
Cat. No. A106-E1-04
1212(0207)(O)