BU-1-485 (RO ASPZ) Mine intrinsically explosion-proof control unit

When equipped with a level sensor (if present), the BU-1-485 (RO ASPZ (РО АСПЗ)) is mounted on fire-extinguishing modules — MPP (МПП) and MUPTV (МУПТВ). It is intended to monitor their status, initiate actuation, and execute control commands from the ASPZ (АСПЗ). Acting as a functional component of the PPKUP (ППКУП), it communicates with it via a wired RS-485 interface.

General characteristics:

Explosion protection marking	RO Ex ia I Ma
Operating temperature, °C	from minus 20 to plus 60
Degree of protection against external influences	IP65
Electric shock protection class	III
Rated DC supply voltage, V	12
Power consumption, W, not more than	0.1
Connection interface	wired RS-485 interface – 1 channel
Mounting	bracket
Overall dimensions, mm	140 × 140 × 45
Weight, kg	1.75

Application area

Underground workings of mines and pits, and their surface structures, including those hazardous due to gas and dust, in accordance with the explosion protection marking, operating conditions, and the requirements of industry safety regulations.