It measures 35.5 x 35.5 x 33 mm, has a 2.2 kW AC3 rating and is available in three- and four-pole versions with AC or DC coils and as reversing contactor with mechanical interlock. Typical applications include interfacing electronic systems with power circuitry, control of motors in washing machines and similar appliances, motor control for security barriers and gates, fan control in air-conditioning installations and packaging machines. A full 3 mm contact opening enhances the safety and reliability of the contactors and, to facilitate use in motor control applications, they can be supplied as interlocked pairs mounted on a single base.
Installation of J7KNU contactors is straightforward as they are designed to fit 15 mm DIN rails in order to be available also small distribution boxes, but the J75KN snap-on adapter make the J7KNU suitable also for the standard 35mm DIN rail. They also include large screw clamp terminals that allow wiring to be carried out easily and quickly eliminating the frustration of working with tiny terminals. Operating temperature range is – 40 ºC to +60 ºC.