KMI AC contactors with thermal electrical relay in a protective enclosure represent a complete device consisting of a compact contactor KMI, RTI thermal electrical relay, enclosure with glands and control buttons. Intended for remote actuation by means of direct connection to the network and shutting down three-phase asynchronous electric motors with a short-circuited rotor for the applied voltage limited to 400 V as well as for protecting electric motors from overloads of inadmissible duration and overcurrents arising in case of one phase retardation. Applying KMI 10910 + KMI 23211 contactors predetermines the use of a plastic enclosure; KMI 34012 + KMI 49512 are supplemented with a metal one.

Correspond to the requirements of EN 60947-1, EN 60947-4-1, EN 60947-5-1. There is one NO contact group built in the control coil module in the circuit of every contactor. Owing to the push-button control station, this provides for assembling a simple control circuit.

Rated control supply voltage Us at AC 50HZ: 400 Rated control supply voltage Us at DC: - Voltage type for actuating: EV000460 Rated operation power at AC-3, 400 V: 4 Rated operation current Ie: 25 Conditioned rated short-circuit current Iq: 1 Setting range over-current release: 7...10 Connection type main current circuit: EV000415 Degree of protection (IP): EV006419