The A22E series emergency stop switch is supplied as a complete or sub-assembled unit and can be installed in a 22mm or 25mm diameter hole. The switch unit can easily be mounted without the use of tools.

Direct opening mechanism to open the circuit when the contact welds
Safety lock mechanism prevents operating errors
Easy mounting and removal of Switch Blocks using a lever
Mount three Switch Units in series to improve wiring efficiency (with non-lighted Switch Units, three Units can be mounted for multiple contacts)
Finger protection mechanism on Switch Unit provided as a standard feature
Install using either round, or forked crimp terminals
Non-lighted models IP65 (oil-resistant), lighted models IP65
A lock plate is provided as a standard feature to ensure that the control box and switch are not easily separated

Non-lighted, 818-2009, 861-4616, 757-9089, 794-8823, 549-479, 841-1809 & 861-4610 (with Emergency Off legend)
Lighted, without voltage reduction unit, 757-9092 & 757-9095

Non-lighted, 746-7154 & 746-7163

Non-lighted 746-7166 & 746-7157
Lighted 746-7150

Without voltage reduction unit, 861-4629 & 861-4622
With voltage reduction unit, 861-4626

LED lamp, Red, 24 Vac/dc, 861-4635
Emergency Stop legend plate, 60mm dia. 757-9109
Emergency Off legend plate, 60mm dia. 746-7160
Control Box, yellow, 1 hole, 746-7179
E-Stop Shroud with Emergency Off legend, yellow, 746-7172
E-Stop Shroud, yellow, 746-7176 (no spacers) & 746-7185 (2 spacers)

UL, cUL, TUV, CCC.

UL508 C22.2 No.14, EN60947-5-1 & EN60947-5-5 (certified direct opening mechanism), GB14048.5, EN60947-5-1.

Protect workers and equipment with this push button shroud from OMRON. It's precisely sized to pair with an A22E series emergency stop switch (such as 746-7166). The unit is shaped to shield the button and prevent accidental activation or deactivation. As it's made of robust and corrosion-resistant plastic, you can use it even in harsh industrial environments such as chemical processing plants. There's a predrilled hole in the base to slot in the E-stop and washers are included to ensure you get a secure fit.

• Comes with 'Emergency Off' legend plate in large black text for immediate identification
• Bright yellow colour means the unit can be seen even in low-light conditions
• Simple to install without the need for specialist tools or any prep
• Compatible E-stop is suitable for 22mm and 25mm diameter holes for versatile positioning

• Factory floors
• Engineering workshops
• Transportation infrastructure

Yes, it's designed for use with A22E series emergency stop buttons which have IP65 protection. This means that they are fully safeguarded against low pressure jets of water from any angle.