Flameproof compact station type MSL 610

The compact station type MSL 610 is a switching device designed for underground mining, to remotely control electric drives of mining machinery and equipment, powered by a three-phase alternating current network with an insulated star point of the transformer (IT network).

The increased degree of functional safety is achieved by means of a suitable connection combination for overload and short-circuit protection, leakage protection, protective conductor continuity control, receiver temperature (PTC), control and instrument relays, disconnector. The main compartment cover is equipped with a Quadrangular control panel with a sight glass to view all the parameters of the station operation on the internal LCD monitor. There is an emergency stop switch on the main compartment lid to disconnect the supply voltage from all loads powered by the station.

The device is equipped with a single power supply circuit, equipped with a hand-operated disconnector. The outgoing feeders are controlled and monitored by means of:

  • individual control and measuring modules,
  • multifunction relay type PMB.

The equipment can comprise up to eight single main outgoing feeders, up to four lighting outgoing feeders supplied from a transformer up to 16 kVA and up to four auxiliary outgoing feeders. The power supply can be supplemented by a starter with a current corresponding to the maximum current of the disconnector with a supplementary bypass contactor.

The device contains an integrated PLC, which is responsible for controlling and supervising the outgoing feeder. Data transmission is carried out via intrinsically safe modules, Ethernet communication interfaces, RS485, RS422, RS232, CAN etc. suitable for transmission via copper wire and optical fibre cables. The components used ensure reliable operation of the compact station in the underground mining, while meeting increased safety requirements.


  • rated current up to 500 A, (up to 800 A – version with power switch)
  • up to eight independently protected outgoing feeders,
  • local or remote control,
  • clear operating status visualisation,
  • small overall dimensions,
  • easy access to station internals.
Górnicza stacja kompaktowa typu MSL 610

Explosion protection

Marking depending on the components used
I M2 Ex db [ia Ma] [ib Mb] I Mb
I M2 Ex db eb [ia Ma] [ib Mb] I Mb
I M2 Ex db [ia Ma] [ib Mb] [op is Ma] I Mb
I M2 Ex db eb [ia Ma] [ib Mb] [op is Ma] I Mb
PB Exd[ia][ib]I
PП Exde[ia][ib]I
PB Ex d [ia Ma] [ib Mb] [op is Ma] I Mb X

TC BY/112 02.01. 103 00177
TC RU C-PL.ME92.B.01062

Rated values

Ingress protection rating
IP54 / IP65
Ambient temperature
-10°C ≤ Ta ≤ +40°C

Rated insulation voltage
500 (690) V AC, 1000 (1140) V AC

Rated switching voltage
230/400/500/690/1000/1140 V AC

Rated continuous current
500 A
800 A (power circuit breaker)
Number of outgoing feeders
Number of circuits: 1
Number of main outgoing feeders: 0,1, 2, 3, 4, 5, 6, 7, 8
Number of auxiliary outgoing feeders: 0, 1, 2, 3, 4
Number of outgoing feeders for release units (brakes): 0, 1, 2, 3, 4

Auxiliary outgoing feeder
24/36/42/127/133/220/230 V AC / 200 (450) VA

Transformer outgoing feeder
24/36/42/127/133/220/230 V AC / 16 kVA

Release unit (brakes) outgoing feeder
42/127/133/220/230 V AC / 5000 VA

Configuration of contactor operation
single-speed, two-speed, reversible, star-triangle, parallel, serial, automatic phase sequence change

(W x H x D) 1130x605x560 mm
(W x H x D) 1245x605x560 mm (with grommets)
(W x H x D) 1575x605x560 mm
(W x H x D) 1815 x605x560 mm (with grommets)

700..900 kg


M S L 6 1 0 * * / B P

BP – manufacturer
* – number of outgoing feeders
1..8 – lighting and motor power supply
1..4 – lighting power supply
1..8 – motor power supply (also applies to thyristor starter)
3 – lighting and motor power supply
4 – lighting power supply
5 – motor power supply (also applies to thyristor starter)