Power warning
September 1st 2007

A Universal Power Alert (UPA) device gives a visual indication of any residual power within an electrical enclosure, improving safety for operating, service or maintenance personnel.

The latest UPA - 130 model, from Marsh Bellofram Europe, is a smaller unit for fitting in a standard 30mm dia panel knockout. The original UPA-100 fitted a 11/4in conduit knockout. Both provide identical levels of safety when fitted to control panels, circuit breaker boxes or other types of enclosed electrical isolating devices.

Features include the verification of zero-energy or the detection and indication of either single or three phase AC voltages within an enclosed unit. The presence of DC or stored energy is also identified.