The Relion 615 Series is a comprehensive family of protection relays per

fectly aligned for the protection, control, measurement, and supervision of

utility substations and industrial systems. It includes dedicated protection

relays for feeder, motor, and transformer protection.

The PCMU provides a seamless and cost effective way to re

place legacy relays. It reduces risk and saves money. A detailed

comparison of the PCMU series vs the traditional replacement,

which requires an adapter plate and is not wire-alike, shows

how users save time and money when replacing protection

relays and requires less personnel for less time.

The PCMU replaces DPUs of the 245. 445. and 2000 series

and MSOC relays. To request a training or quotation, contact

your ABB representative with the style numbers of your existing relays.