IIP-M3 Intrinsically Safe Power Supply

The IIP-M3 Intrinsically Safe Power Supply is designed for use as an uninterruptible power source for automation equipment (including fire protection systems), dispatching systems, communication, data transmission, and other devices in underground mine workings and surface structures of mines and pits, including those hazardous due to gas and dust.

General characteristics:

Explosion protection marking	PB Ex mb [ia Ma] I Mb X / PO Ex ia I Ma*
Operating temperature, °C	from 0 to +50
Ingress protection rating	IP65
Protection class against electric shock	I
Rated supply voltage, V**	127 / 220 / 380 / 660
Battery type	LiFePO4
Battery capacity, Wh	900
Rated output voltage of intrinsically safe DC supply, V	12
Power supply features	2 inputs (ATS function)
Number of intrinsically safe power output channels** I0 = 2.0 A I0 = 3.5 A	2 1
Rated output current, A**	2.0 / 3.5
Rated DC output voltage at rated current, V	12
Diagnostics and control	Data exchange via RS-485 interface (Modbus) Discrete signals (functional purpose programmable by user) Input signal (DI) – 1 pc. Output signals (DO) – 4 pcs. LED indication Door opening monitoring function
Length of permanently connected power cables, m, not less than	2 x 2 pcs.
Diameter of connected cables for intrinsically safe circuits, mm	from 9 to 13
Overall dimensions, mm	450 x 410 x 180
Weight, kg	35
Service life, years	10

* - when disconnected from the power supply (e.g. in emergency situations), the explosion protection marking is PO Ex ia I Ma

** - depending on the version

Application area

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