New compact 3-Phase voltage monitoring relay LPMR/AUX now available and suited to the protection of scroll and screw compressors, motors, etc against voltage unbalance, phase reversal and phase loss.

A wide operating voltage range of 190 – 600VAC allows the product to be used on most worldwide 3-phase supplies and with the ability to automatically detect if the supply frequency is 50 or 60Hz.

Requiring a 24VAC supply to power the product, this being a common voltage used in HVAC systems. The internal relay is pre-wired to switch 24VAC out to the externally connected contactor. This ensures wiring is kept to a minimum and eliminates the need to add any additional wire links on the product.

No user adjustments means there is no setting up required. Installation is therefore very quick and simple.