Battery Reverse Polarity Control Unit (BRPCU)

Battery Reverse Polarity Control Unit (BRPCU) is an electronic device capable of detecting the incorrect connection between a rectifier and its battery bank. By connecting the device BRPCU directly to the battery bank and consequently before the organ sectioning / protection (eg. Isolator, fuses, circuit breaker) you will be alerted, before executing the maneuver junction rectifier / battery bank, a possible reversal polarity of the battery bank with respect to the rectifier. BRCPU thanks to the presence of SPDT contacts, can ‘drive a minimum voltage coil which equips the circuit breaker to protect the battery bank causing the detachment and consequently avoid the closure of the switch with reversed polarity.This small device will avoid situations so dangerous to people and damage to the systems.


Voltage power input and measurement
24-48-110-220Vdc *

Current consumption
0 Amp (with correct battery connection)
15 mA (batteries with incorrect connection)
* (To be determined at time of order)

Features SPDT contact
5Amp- 250VAC / 2Amp – 24VDC

Mechanical construction:
Polycarbonate 4Moduli din rail
External dimensions (L * W * H) mm: 70 * 60 * 90
External Protection Degree: IP20

What BRPCU offers

• Red led for indicating “POLARITY FAULT “

• Failure relay with SPDT contact

• Easy of use

• Easy connection (only two wires)


• Available electrical panel complete with: Circuit Breaker modular or boxed release coil

• Device BRPCU