Multronics Models MT160/161 RF Contractors have been designed to handle high voltage RF switching. On the MT161 Corona pluming is prevented by means of a special corona gradient shield. Silver-plated beryllium-copper contact cups assures maximum surface contact for all switching modes. Switching is accomplished with two heavy duty solenoids with molded and encapsulated coil windings that require only momentary application of control power. Two protective limit switches that are normally closed during the switching cycle serve to remove control power when the cycle is completed, and two additional (normally open) limit switches provide electrical interlock and impulse for indicator circuits.
Positive transfer action is accomplished with a spring loaded breechlock mechanism. No ceramics or micalex are used in the Models MT160/161. The specially treated and virtually indestructible (NEMA GPO-3) material used in arms and crossbars provides added strength and durability, as well as voltage and current handling capability without arcing. Servicing and parts replacement are simplified, since basic parts are accessible without disassembly.

The Models MT160/161 RF Contactors are designed primarily for high voltage RF Circuit applications at VLF, LF, MF, and HF. They can also be used as an excellent high voltage DC switch for transmitter applications. The standard RF Contactor is furnished for 220 volt systems with voltage handling capacity from 208 to 240 volts. A 110 volt version is available on special order.