MB Series Relays

The MB relay is an ISO 9001:2000 compliant, locally designed and manufactured three phase electronic motor protection relay.

The relay is fully configurable with the aid of free front-end software or a man-machine interface unit (MMI). The relay design incorporates an integrated CT module block and earth leakage core that translates into a neat installation solution. Residing at the centre of the relay is a modern and comprehensive range of customizable protection and control features suitable for a wide variety of applications. Above all else it includes a host of user-friendly features not found in similar products and caters for Profibus, Canbus and Modbus communications protocols. It is also an ideal upgrade unit for the NewElec MA range.


PDF Download

MB Relay User Manual 01A

PDF Download

MB CANbus User Manual 01C

Config Software

ZIP Download

MB Relay Frontend Installation 01F

ZIP Download

MB Relay Frontend Installation 02C

ZIP Download

USB Drivers 01A

Firmware Updates

ZIP Download


ZIP Download


ZIP Download


Product List

MB Relay Product List

FPR0635 MB5
FPR0619 MB10
FPR0066 MB50
FPR0425 MB 100
FPR0620 MB300


MB Programming Cable

CAB0029 USB TO MINI USB 5 PIN (128521) 1,5M