Datasheet

New Product
Delay OFF Rocker Switch
A8GS-T
Minimum size class in the industry
Remote Reset Rocker Switch with Delay OFF Function
• Rocker switch with Delay OFF Function. Switch is kept to turn ON, even
if button is operated to turn OFF, and Switch is turned OFF by external
signal.
• Zero standby power with Reset function, switching OFF by external signal.
• Preventing from application trouble such as a data lost or circuit damage
by forced power OFF.
• Timing control of main power switch turn OFF for safety application
design with Delay OFF function.
• Contact gap of 3 mm minimum.
• UL and cUL standard approved, Conforming to EN standards.
RoHS Compliant
(Please refer the Precautions)
Usage example
Saving energy by cutting standby power.
Saving energy by preventing forgetting turn OFF main power.
Turning OFF main power by remote.
Turning OFF main power of many equipments at the same time.
Timing control of main power switch turn OFF for safety design.
Preventing from circuit and data damage by power flicker.
* There are 2 kinds of main models A8GS. (Delay OFF Function model and Remote Reset model) With regard to the models with Delay OFF Function, please refer to the other catalog.
List of Models
Contact Form
1 to 4: Power contact terminal
a, b: Signal contact terminal
+, -: Coil terminal
Signal Contact Terminal: SPST + Power Contact Terminal: DPST
Signal Contact Terminal × 1 + Power Contact Terminal × 2
+
-
Terminals
No Marking
Marking on caps
1
a
3
2
b
4
Quantity
per box
Signal Contact Terminal: CT Connector
Power Contact Terminal: Quick-connect
terminals #187(t=0.8)
A8GS-T1185K
Signal Contact Terminal: CT Connector
Power Contact Terminal: Solder terminals
A8GS-T1115K
A8GS-T1285K
A8GS-T1215K
A8GS-T1385K
A8GS-T1315K
50
Note: 1. This is not general 3 pole switch.
(1) Signal contact terminal is only for detecting button ON/OFF.
(2) Power contact terminal is for turning ON/OFF of circuit. Switch is turned OFF by external signal only, after turning OFF of button.
1
A8GS-T
Ratings
Contact Ratings
Rated voltage
Rated current
(Resistive load)
125 VAC
16 A
250 VAC
10 A
Power Contact Terminal
Signal Contact Terminal
5 VDC
0.2 A
Note: 1. 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 Ratings
Rated voltage, current
Operating voltage
range
Rated usage cycle
Coil resistance
(Coil temperature: 20 ± 2 °C)
ON: 50 to 100 ms
11 Ω ± 20 %
OFF: Min 5 sec
Note: 1. Voltage for coil should be set within operating voltage range and applied time should be within rated usage cycle.
Otherwise the performance of the coil may be deteriorated.
Note: 2. In case of applying voltage within the range from 5.5 to 24 VDC to the coil, contact your OMRON sales representative.
5 VDC 455 mA
4.5 to 5.5 VDC
Contact specifications
Signal contact
Power contact
Gold alloy
Silver alloy
3 mm
3 mm
Material
Contact gap
Minimum applicable
3 VDC 1 mA
5 VDC 200 mA
load (Reference value) *
* Please refer to '' Using Micro loads'' in ''Precautions'' for more information on the minimum applicable load.
Characteristics
Permissible operating Mechanical
frequency
Electrical
Switch operation: 20 times/min max, Coil operation: 7 times/min max
Insulation resistance
100 MΩ min (at 500 VDC with insulation tester)
Contact resistance
(initial value)
Dielectric strength
Vibration resistance *
Shock resistance *
7 times/min max
Power contact terminal
100 mΩ max (6 VDC to 8 V, 1 A Voltage drop method)
Signal contact terminal
100 mΩ max (6 VDC to 8 V, 0.1 A Voltage drop method)
Between terminals of the
same polarity
2,000 VAC 50/60 Hz 1 min
Between terminals of the
different polarity
2,000 VAC 50/60 Hz 1 min
Between each terminals of the
switch and terminals of coil
4,000 VAC 50/60 Hz 1 min
Between each terminals of
switch and ground
4,000 VAC 50/60 Hz 1 min
Malfunction
10 to 55 Hz 1.5 mm double amplitude (Malfunction 1 ms max)
Malfunction
300 m/s2 min (Malfunction 1 ms max)
Destruction
1000 m/s2 max
Ambient operating temperature
−10 to +55 °C (with no icing or condensation, 60 % RH max)
Ambient operating humidity
90 % RH max (+5 to 35 °C with no icing or condensation)
Durability
Mechanical
Electrical
Switch operation: 30,000 operations min, Coil operation: 10,000 operations min
Switch operation: 10,000 operations min, Coil operation: 10,000 operations min
Degree of protection
IEC IP40
Contact release time **
100 ms max
Weight
A8GS-TxxxxK: Around 15 g
Note: 1. Above specification values are initial values.
* For the testing condition in individual specification, contact your OMRON sales representative.
** Time from voltage applied to reset coil to actual contacts opening.
2
A8GS-T
Approved Safety Standards
UL (UL61058-1)
Power contact terminal
TÜV (EN61058-1)
Approved safety
standards ratings
16 A 125 VAC
Power contact terminal
Approved safety
standards ratings
10(4) A 250 VAC
10 A 250 VAC
Signal contact terminal
0.2 A 5 VDC
Signal contact terminal
−
Note: 1. There are no approved models of TV-8 rating for Delay OFF Function models.
Connector for Signal Switch Circuit and Coil Circuit
CT connectors produced by Tyco Electronics Corporation or XR connectors produced by JST shall be used
for connection of Signal and Coil circuit. Other connectors shall not be used.
Tyco Electronics Corporation: CT connecter
Pressure welding type
Signal
contact terminal
Coil terminal
Connector
Terminal no.
Connection with
Switch
1
a (Switch COM)
2
---
3
b (Switch NO)
1
+ (Coil)
2
- (Coil)
Housing
Contact
AWG #30-26
AWG #26-22
179609-1
179227-1
179228-3
179228-2
Cramping type
JST: XR Connector
AWG #28-26
AWG #24
AWG #28-26
173977-3
2-179694-3
3XR-6@-P*
173977-2
2-179694-2
2XR-6@-P*
* @ indicates Housing color.
3
A8GS-T
Operation
Delay OFF Function
Power contacts are kept in ON status, even if button is operated to turn OFF by manual operation of button.
And Switch is turned OFF by external signal to coil embedded in switch.
(1) Signal contact terminal and Power contact terminal are turned ON by manual operation of button.
(2) Power contact terminal is kept in ON status, even if button is operated to turn OFF by manual operation.
Only Signal contact terminal is turned OFF.
(3) Power contact terminal is turned OFF when external signal is applied to coil.
Furthermore, it is able to turn OFF both signal and power contact terminals from manual ON condition at the same time by
applying voltage to coil as Remote Reset Function.
Delay OFF Function Operation
OFF
(1) Manual ON
(2) Manual
(3) Delay OFF
Button operating
condition
Power switch terminal
is returned automatically.
Signal contact terminal
OFF
Power contact terminal
OFF
ON
OFF
ON
Coil terminal
OFF
No voltage applied
No voltage applied
Voltage applied
Remote Reset Function Operation
OFF
(1) Manual
(3) Remote Reset
Button operating
condition
Button is
returned
automatically.
Signal contact terminal
OFF
ON
OFF
Power contact terminal
OFF
ON
OFF
Coil terminal
No voltage applied
No voltage applied
Voltage applied
Note: 1. Once switch is turned ON, Power contact terminal is not able to be turned OFF by manual operation.
Please apply the voltage to the coil in order to turn OFF Power switch circuit.
Switch circuit and operating condition
OFF
+
-
(1) Manual ON
1
2
a
b
3
4
Power
supply 1
+
Load1
-
1
2
a
b
3
4
Power
supply 1
Load2
Power
supply 2
(2) Manual OFF
+
Load1
-
1
2
a
b
3
4
Power
supply 1
Load2
Power
supply 2
(3) Delay OFF / Remote Reset
+
Load1
-
1
2
a
b
3
4
Load1
Power
supply 1
Load2
Power
supply 2
Load2
Power
supply 2
*5 VDC applied to coil terminal
4
A8GS-T
Dimensions (Unit: mm) /Operating Characteristics
22
A8GS-T1@ 85K
19.2
30
OFF
28. 5
6. 9
2
16.5
ON
1.3
4.75
0.8
10
15.8±0.8
18.6
27
CT Connector
Operating force (OF)
Note:
Note:
Note:
Note:
1.
2.
3.
4.
1.8 ± 1.4 N
CT Connector
Unless otherwise specified, a tolerance of ± 0.4 mm applies to all dimensions.
At initial operation or operation after reset, operating force is increased, due to switch structure.
Solder terminals model has different hole shape, comparing with Quick-connect terminals. Outline and characteristics are same.
No models of switch without delay off function (without coil), due to product design.
Panel Cutout
27.7 ±0.1
Panel thickness: 0.8 to 2.3 mm
OFF
26.5 ±0.1
19.5 ±0.1
The rollover of the panel shall be on the front face.
And panel back side shall be Edge shape by processing.
4.3 ±0.1
1.9 ±0.1
Panel cutout design is for prevention of false insertion.
Please be careful about the direction of the protrusion.
R by cutting
(Operating surface direction)
ON
Edge
Note: 1. Recommendation panel material is "SPCC", however, in case of soft material or Panel back side shape is not edge, mounting
strength may down. Please check and try by actual mounting panel and set the Panel thickness and hole dimension.
5
A8GS-T
Precautions
WARNING
Do not wire the switch or touch any terminal of the
Switch while power is being supplied. Or it may result in
electric shock.
•Handling
• Do not apply excessive operating force to the switch.
• Do not drop or apply the excessive shock.
Otherwise the switch may be damaged or deformed.
• Do not impose force to operating part from an angle, Otherwise the
switch may be damaged or deformed.
Cautions
Use the switch within the rated voltage and current ranges, otherwise
the switch may have deteriorated durability radiate heat, or burn out.
This particularly applies to the instantaneous voltages and currents
when switching.
Caution of usage
•Mounting
• Easy to mount by snap fitting.
• Do not impose excessive force on switch at the time of panel
mounting.
• Do not detach the switch after installed. Otherwise, the holding
strength may be loose.
• Apply the force to housing when installing to panel. Do not apply
the force to the button (rocker) part when installing to the panel.
Pushing position
Correct
Incorrect
•Environment for storage and use
• To prevent the terminals color change and others while storage,
Do not keep for a long term in the following conditions.
(1) High temperature, high humid environment
(2) Corrosive gas
(3) The place where the direct rays of the sun
(4) The place where the sea breeze
(5) Environmental with a sudden temperature change
This switch is not sealed to prevent from entering dust and
liquid.Do not use under dust and liquid condition.
• Switch shall not be icing or condensation.
• Strong magnetic field may cause malfunction.
Check function is recommended under practical use conditions.
•Using Micro Loads
•Wiring
• Confirm the size of the receptacles and be sure to connect them
firmly.
• Use an appropriate wire allowable to carry current.
• Be sure that there is no mechanical stress on terminals and coil
terminals.Otherwise, the switch may malfunction and/or damaged.
(Example: Too strong wiring)
In case of using the switch under the micro loads, please refer the
Minimum applicable load and set the load more than minimum
applicable load.
Even when using micro load within the operating range, if inrush
current occurs, it may increase contact wear and so deteriorate
durability.Therefore, insert a contact protection circuit where
necessary.
The minimum applicable load is the L-level reference value.
This value indicates the malfunction reference level for the
reliability level of 60 %. (λ 60)
The equation, λ 60 = 0.5 x 10-6 /operations indicates that the
estimated malfunction rate is less than 1/2,000,000 operations with
a reliability level of 60 %.
• Take appropriate insulation distance between switch terminal and
other metal parts after wiring.
• Coil has polarity, please confirm polarity when wiring.
• Do not apply continuous voltage more than 10 seconds at any
time. Otherwise, insulation deterioration may occur by heat of coil.
Please consider the circuit design.
• Reverse voltage may cause of accurate discrete semiconductor
devices. In case of controlling by accurate discrete semiconductor
devices, Please consider the circuit design. (Example : add the
surge absorbing circuit)
• In case of manual soldering, soldering time is max 4 sec by
soldering iron (Max 350 °C at the iron tip) and do not add the stress
to terminals.
• In case of touching the soldering iron to the root of terminals, it may
cause Housing parts melt.
6
•RoHS Compliant
The "RoHS Compliant" designation indicates that the listed models
do not contain the six hazardous substances covered by the RoHS
Directive.
Reference: The following standards are used to determine
compliance for the six substances.
Lead
: 1,000 ppm max.
Mercury
: 1,000 ppm max.
Cadmium
: 100 ppm max.
Hexavalent chromium : 1,000 ppm max.
PBB
: 1,000 ppm max.
PBDE
: 1,000 ppm max.
MEMO
7
• 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. A223-E1-02
1014(0313)(O)
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