MCDONNELL & MILLER 3973 NEW -2 1/2 LOW WATER CUT-OFF SWITCH D392996

BUILT IN LWCO WITH 1-3/4" INSERTION

McDONNELL & MILLER WEIGHING SYSTEMS D392996 - LOW WATER CUT-OFF SWITCH, NEW NO BOX - 2 1/2" MODEL W/1-3/4" INSERT PN

The 3-Series features an industry standard 1-3/4" diameter probe shaft, which is a must for most industrial applications. The same standard probe shaft secures the probe housing to the body of the LWCO. This LWCO features a 4-20mA output signal with 4-wire lead wires.

A solar-powered stand alone LWCO for up to 2 1/2" gas piping. One piece, pre-assembled, adjustable depth switch allows fitting to incoming pipe diameter. Mounts in line with the oncoming low water cutoff to be supplied with gas pressure.

The 3973 New Series 2 1/2 LWCO is a single pole, non-resettable magnetic low water cutoff switch designed to protect pumps from burnout or damage caused when the pump impeller comes in contact with the well casing. For use with submersible motors rated at 10HP or greater and 7.5HP or less. Reversible for air lift or water well applications.

Protect your investment with proper preventative maintenance. This is the Low water cutoff for those boilers with a 1-3/4" (44mm) hole in the pipe for cold water. This switch is designed to locate slightly deeper in the tank and fit most boilers that come with the bulkhead version. 3973 insures safety by shutting down the gas flow if the fuel level is too low due to an overflow condition. This prevents boiler damage, odor emission, and unnecessary gas usage.

The D392996 is a low water cut-off switch with 1-3/4" NPT male inlet and outlet. It mounts on the discharge to a pump, pressure line or charging hose via the through bolt hole. When there is insufficient water flow, its pilot will shut down the pump.

Built-in level to prevent tipping. Mounting bracket is field install & adjustable. NEMA 1 enclosure, 4.12" wide x 3.37" high (3.75" clearance) switching body provides 15/32 NPT connections for conduit or cable inlet and outlet. Swinging handle with field welded stud that is breakaway for padlock application and flush mounted junction box accepts standard Eurostyle conduit entry ring for conduit connection to equipment ground point on panel leg.