|PM-15 Relay block is designed to commutate intrinsically safe and spark hazardous control circuits of mine equipment by means of intrinsically safe voltage. This provides galvanic isolation of the input control circuits of the relay block from the circuits of the controlled devices.
a.c. voltage, frequency 50 Hz in a commutated circuit, 127V, no more;
Commutated current, 1 A, no more.
Level and type of relay block explosion protection – RV 1V Ia.
Level of relay block ingress protection – IP54.
Relay block is designed for application in mines including gas and dust hazardous ones.