Resources Saving Problems
with Pilot Production”
EXPLOSION-PROOF CONTACTOR STARTERS
Starters are designed for direct start remote control and self-rundown stop of three-phase squirrel-cage motors, which are operated in three-phase AC networks with insulated transformer neutral in gas- (methane) and coal dust-hazardous mines, as well as for protection from short-circuit currents and overload of outgoing power circuits.
Starters have explosion-proof design with explosion protection mode “flame-proof enclosure” with intrinsically safe output circuits
| Basic specifications | |
|
System nominal voltage, V |
660/1140 |
|
Power frequency, Hz |
50 |
|
Nominal continuous mode current, A - PVT-250-2 |
|
|
Transit load current, A |
63 |
|
Breaking capacity (effective value), kA |
3,75 |
|
Auxiliary tap-off voltage, V |
36 |
|
Load capacity of auxiliary tap-off, A |
tо 5 |
|
Intrinsically safe control circuits voltage, V |
18 |
|
Prestored values of precheck and continuous control of auxiliary tap-off, kOhm |
3,3 |
|
Dimensional specifications, max: - length, mm - width, mm - height, mm |
770 940 |
|
Weight, kg, max |
2300 |
|
Protection level |
IP 54 |
|
Climatic version |
U5 |
