3-66

Interlock Switches

Non contact Switches

Sentinel 1

Typical Wiring Diagrams

Application Details

Sentinel 1 Sensor

Red

Blue

Black

White

Yellow

Green

Supply

Voltage

Safety

N.C.

Fuse

Externally

Auxiliary

N.O.

+

-

✔

✔

✔

✔

✔

✔

Actuator Approaches

On presenting the actuator to the switch, the high-

intensity electromagnetic field together with a

resonant frequency signal causes the contacts to

close. On removing the actuator, (opening the door)

the safety contacts open, isolating the machine. The

switch can not be overridden by magnets, tools, etc.

Operating Principle