Prevent unauthorized use—these switches require coded magnets (sold separately) to actuate, and cannot be bypassed using ordinary magnets. They actuate when a magnet comes within sensing distance, and reset when the magnet moves away. Mount the switch in a stationary position, such as a door frame, and mount the magnet to a movable object, such as the door. They’re often used to detect when a door or window opens, and can be used with movable machine guards. All are rated IP67 for protection from temporary submersion.

Coded magnets include tamper-resistant one-way screws for mounting. To remove screws, see one-way bits and drivers.

Safety relays are required in safety applications with switches that control two or three circuits.

3D CAD models availableFor technical drawings and 3-D models, click on a part number.

Switches

Coded

Magnets

No. of Circuits

Controlled Switch Starting Position Industry

Designation Switching Current

@ Voltage Max.

Voltage Input

Voltage Max. Sensing

Distance Dia. Lg. Mounting

Thread Size Environmental

Rating Each Each

Plastic Housing with Wire Leads

1 1 On (Normally Closed) SPST-NC 6.3 A @ 120 V AC 250V AC 24V DC 0.2" 1.2" 3.1" M30 IP67 7225K11 $292.78 7225K12 $25.43

Switches

Coded

Magnets

Safety Relays

No. of Circuits

Controlled Switch Starting Position Industry Designation Switching Current @ Voltage Max.

Voltage Input

Voltage Max. Sensing

Distance Lg. Wd. Ht. Environmental

Rating Each Each Each

Plastic Housing with Wire Leads

2 1 Off (Normally Open) and 1 On (Normally Closed) DPST-1NO/1NC 0.5 A @ 120 V AC/120 V DC 120V DC

120V AC 120V DC

120V AC 0.2" 3.5" 1" 0.5" IP67 7202K12 $122.12 7202K21 $32.37 7773K65 $491.35

3 1 Off (Normally Open) and 2 On (Normally Closed) 3PST-1NO/2NC 10 mA @ 24 V DC 24V DC 24V DC 0.2" 3.5" 1" 0.5" IP67 7202K11 128.45 7202K21 32.37 7773K65 491.35