Know immediately when your thief hatch as been left open or not latched properly.

This Class 1 Division 1 Compliant Thief Hatch switch consists of two main components: the switch latch pin and the magnetic trigger hinge pin. The switch is a NORMALLY OPEN Discrete switch, capable of transmitting 9-30VDC with a maximum current of 500 ma.

NOTE: When the hatch is closed AND latched, the circuit is completed; when the hatch is not latched, the circuit will read open.

To install the switch, you will need to remove the lower pin that the latch catches on. You can do this by simply removing one of the retaining clips found on the side of the pin and sliding it out. Then, you simply slide the new switch pin into the same position and secure it using the retaining clip it comes with. Typical installations will route the cable around to the backside of the hatch so it will not get caught during normal operation. The cable is Outdoor UV exposure rated, so while conduit is always recommended for long runs, it is not necessary. The switch should be mounted to the hatch so that the switch does not move when the hatch is opened. The wired connection can be secured to the bolts sealing the hatch to the tank, but it is not required.

To install the trigger hinge pin, the process is similar to the switch. Remove one of the retaining clips from the steel pin that holds the hasp to the lid of the hatch. Then slide it out and replace it with the new trigger pin, being sure to secure it using the supplied clip. You can confirm the operation of the switch at this time by testing the hatch resting unlatched and confirming the circuit is open. Then latch the hinge hasp and confirm continuity. Above is a picture of the switch and pin installed for reference.

NOTE: The switch is available in lead lengths up to 100', but the overall length of these should not exceed 400'. You can put up to 4 of these pins on the same circuit.

Thank you for your interest in the patent pending TCOP Solutions Thief Hatch Switch. For any questions, please email us at switch@tcopsolutions.com.