VA-RN Mine circuit breaker

The VA-RN mine circuit breaker is designed to protect an electrical circuit from overload and short-circuit currents. The VA-RN provides automatic safe power disconnection and allows manual switching on and off of equipment power supply at the facility.

General characteristics:

Parameter name	Parameter value
Insulation level according to GOST 30852.20–2002	RN2
Rated AC voltage Ue	depending on version from the range: 127/220/380/660 V
AC voltage range	-15...+10 % Un
Rated output current	depending on version from the range: 6, 10, 16, 20, 25, 32, 40, 50, 63 A
Equipment class by method of protection against electric shock	I
Number of poles	3
Trip unit type	thermal, electromagnetic
Degree of protection against external influences according to GOST 14254-2015 (IEC 60529:2013)	IP65
Operating temperature	from minus 20°C to plus 60°C
Storage temperature	from minus 20°C to plus 60°C
Operating humidity	98±2% (without condensation)
Weight, max – VA-RN-380-10	6 kg
Overall dimensions (W×H×D), max – VA-RN-380-10	200 × 270 × 212 mm
Service life	10 years
Number of cable entries, version: – VA-RN-380-10	M25 (plastic) – 3 pcs.
Ranges of external diameters of connected cables:	Ø 9–17
Working position in space	vertical
Allowable deviation from working position, degrees, max	30

Application area

Underground workings of mines and pits, and their surface structures, non-hazardous for gas and dust.