Explosion-proof wall-mounted connectors of SV-VELAN type are designed for connection and disconnection of electric circuits with voltage up to 690 V with frequency of 50 and 60 Hz of alternating and direct current, for connection and disconnection of cable network sections, various electrical units, installations and machines between themselves and with sources of electrical energy in ground stationary and mobile installations operated in hazardous areas of chemical, oil refining, gas and other industries, as well as on means
- at voltage 200-250V - blue colour,
- at voltage 380-415V - red colour.
- at voltage 480-690V - black colour.
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