Choosing an Electrical Switch
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Outlet-Box-Mount Key Switches

Reset fire panels, or open electromagnetic locks, electric strikes, and automatic door openers. These switches require a key to turn circuits on or off, limiting access and preventing accidental activation. The lock is not included; use a 1 1/4" long mortise lock with a standard cam.
Switches with a delayed start timer allow personnel to reach a door before it opens.
For technical drawings and 3-D models, click on a part number.
Wire Leads | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
No. of Circuits Controlled | Switch Starting Position | Switch Action | No. of Terminals | Industry Designation | Switching Current @ Voltage | Max. Voltage | Dia. | No. of | Lg. | Includes | Each | |
2 Position | ||||||||||||
With Wire Leads | ||||||||||||
2 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | 3 | SPDT | 3 A @ 125 V AC, 1 A @ 250 V AC | 250V AC | 1 3/16" | 3 | 5" | Screwdriver, Tamper-Resistant Screws | 00000000 | 0000000 |
2 | 1 Off (Normally Open) or 1 On (Normally Closed) | Stays Switched (Maintained) | 3 | SPDT | 3 A @ 125 V AC, 1 A @ 250 V AC | 250V AC | 1 3/16" | 3 | 5" | Screwdriver, Tamper-Resistant Screws | 00000000 | 000000 |
2 Position with Delayed Start Timer | ||||||||||||
With Wire Leads | ||||||||||||
2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Springs Back (Momentary) | 4 | DPST-1NO/1NC | 10 A @ 125 V AC/250 V AC | 250V AC | 1 3/16" | 4 | 5" | Screwdriver, Tamper-Resistant Screws | 00000000 | 000000 |