Switches, Relays & Fuses

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Electrical faults present as mechanical ones. A machine that will not start, a heater that will not fire or a waste tank that overflows is usually a switch or a sensor doing exactly what it was designed to do — or failing to.

This range covers the switchgear and sensing components across truckmounts, portables and airmovers.

It includes DPST rocker switches in 4 and 6 pin, two-speed and three-speed rockers for Dry Air Force 9 and Typhoon airmovers, and single-throw Dry Air rockers; Razorback Sandia on/off switches for extractors, backpacks and spotters, and the Sandia heater sensor; HydraMaster recovery tank float switches, the Harwil waste tank APO shutoff, the Nason 285 degree sensor kill switch and the RX20 micro switch; a sidemount float switch with fittings; the Titan 575 RTD sensor kit with compression fitting; and the Kawasaki FD620D ignition coil assembly.

How to choose

A kill switch that trips is usually right. The Nason 285 degree switch and the waste tank shutoff exist to stop damage. Bypassing one to finish a job is how a heat exchanger or a vacuum motor gets destroyed.

Float switches fail dirty, not broken. Waste tank floats stop moving because of what is in the tank. Clean before condemning — and if it is replaced, expect the same again unless the filtering upstream improves.

Count the pins. A 4-pin and a 6-pin DPST rocker look identical in a panel and are not interchangeable. Check the connector before ordering.

Carry rocker switches as spares. They are a few dollars and they end a day's work.