They are designed for operation in three-phase AC networks with isolated transformer neutral in the conditions of mines that are not dangerous for the explosion of gas or dust.
The starters have housing with a metal thickness of 3 mm, a control circuit for a safe voltage of 18V.
Overall dimensions - 710 (D) х285 (W) х850 (В) mm.
PRN-63MU U5.660V (63A) - 75kg.
PRN-250MU U5, 660V (250A) - 100kg.