The LA electronic motor protection relay provides superior thermal overload and phase unbalance protection in applications that would traditionally have used thermal bi-metal relays.
This microprocessor based electronic motor protection relay, designed to IEC 60255-8, provides overload protection for cyclic or sustained loads, as well as providing unbalanced current and single phasing protection.
The integral three phase current transformer module block with 22mm primary apertures facilitates 'straight through' conductor routing from the main contactor to the electric motor in the range of 1 to 250 Amps.