Explosion-proof complete device for the smooth start -250


Explosion-proof modification is 3, category of protection is JP54 according to GOST 14254-96.

Structure of the graphical symbols:

250 rated current.
5 climatic modification and category of allocation according to GOST 15150-69.

The device ensures:

  • smooth start with adjustable acceleration time;
  • protection of the outgoing lines against the short-circuit currents;
  • current protection of the engine against the overloading;
  • blocking of operation in case of reduction of insulation resistance of the outgoing lines below normal;
  • visible indication of status of the block-diagrams and protections.

Parametr Value
Rated mains voltage, V 1140/660
Rated current, A 250
Power supplied to the electric motor, kW, by the voltage:
660 V 250
1140 V 355
Adjustment of the duration of start-up, s 3-20
Overall dimensions, mm
- depth 600
- width 726
- height 915
Weight, kg 270