A165E Emergency stop pushbutton switches
Emergency stop switch
The A165E line-upoffers E-Stop switcheswithvariousheadtypes.For flexible
application, a wide range of accessories is provided. To set up easy installation and maintenance, various contact combinations are available.
• Direct opening mechanismwith minimum contact separationof 3 mm
• Safety lock mechanismpreventsmisuse
• Short mounting depth
• Modular construction easy installation using snap-in switch
SwitchesRated voltagePushbutton colorPushbutton sizeTerminalContactOrder code
(125 VAC at 5 A,
250 VAC at 3 A,
30 VDC at 3 A)
LED 24 VDCRed 30 dia.Solder terminalSPST-NCA165E-LS-24D-01
LED 24 VDC 40 dia. SPST-NC A165E-LM-24D-01
Note: The above models have a surface indication of “RESET.” Models with “STOP” indication are also available. For further information, contact your Omron representative.
Accessories (order separately)
Item TypePrecautionsOrder code
Yellow plateYellow, 45 dia.Use this as an emergency stop nameplate. A16Z-5070
Panel plugRound Used for covering the panel cutouts for future panel expansion.A16ZT-3003
Tightening tool –Useful for repetitive mounting.Be careful not to tighten excessively. A16Z-3004
Extractor–Convenient for extracting the switch and lamp.A16Z-5080
Rated voltage Resistive load
A165E seriesA165E_-U series
125 VAC 5 A 1 A
250 VAC 3 A0.5 A
30 VDC3 A 1 A
Minimum applicable load150 mA at 5 VDC 1 mA at 5 VDC
Features Characteristics Operating force (OF) max. 14.7 N Releasing force (RF) min. 0.1 N·m Pretravel (PT) 3.5±0.5 mm
(3±0.5 mm In case of A165E_U series)
ItemEmergency stop switch
Allowable operating frequency Mechanical 20 operations/minute max.
Electrical 10 operations/minute max.
Insulation resistance100 M min. (at 500 VDC)
Dielectric strength1,000 VAC, 50/60 Hz for 1 min between terminals of same polarity
2,000 VAC, 50/60 Hz for 1 min between terminals of different polarity and also between each terminal and ground
1,000 VAC, 50/60 Hz for 1 min between lamp terminals *1
DurabilityMechanical 100,000 operations min.
Electrical 100,000 operations min.
Ambient temperature Operating: –10 to 55°C (with no icing or condensation) Storage: –25 to 65°C (with no icing or condensation)
Protection against electric shock ClassII
*1LED not mounted. Test them with the LED removed.