USV Explosion-Proof Modular Interface Devices

USV devices are intended for housing control, monitoring, communication, and signaling elements, as well as other electrical, electronic components and radio devices, with various types of explosion protection, including intrinsically safe electrical and optical circuits, and for their explosion-proof interfacing both among themselves and with external explosion-proof devices and systems.

General characteristics:

Explosion protection marking: - USV-01 - USV-02, USV-03 - USV-04	PB Ex d I Mb X; PB Ex d [ia Ma ib] I Mb X, PB Ex d [ia op is Ma ib] I Mb X; PB Ex d [ia Ma ib] I Mb X (PO Ex ia I Ma X), PB Ex d [ia op is Ma ib] I Mb X (PO Ex ia op is I Ma X)**
Operating temperature, °C	from minus 20 to plus 40
Degree of protection against external influences	IP65
Protection class against electric shock	I
Maximum AC voltage, V	250
Maximum current, A	40
Types of batteries installed in USV-03, USV-04 versions	NiCd, Li, NiMh
Overall dimensions, mm	depending on configuration
Weight, kg	depending on configuration

* - the presence of intrinsically safe circuits of level ib and/or ia depends on the installed explosion-proof components and Ex-components.
** - when disconnected from the power supply (e.g., in emergency cases).

Application area

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