Thermal Overload Relays: LR1-D is manufactured and exported by the Controls & Switchgear Group. All plants of the Controls & Switchgear Group are approved and accredited to ISO 9001 [2000] & 9002. Thermal Overload Relays: LR1-D are 3 Pole, manual reset type, providing protection against overload, single phasing & unbalance voltages. Thermal Overload Relays: LR1-D are primarily direct mounting on compatible D Range contactors & with independent mounting kit can be converted to individual mounting relays. The Thermal Overload Relays: LR1-D are available in relay setting range from 0.10 to 66A direct operated in 21 options of relay range to fully protect the electric drives. Where as independent mounting relay is available in relay setting range 66 to 80A. The Thermal Overload Relays: LR1-D fully meet the requirements of IEC 947-4-1 & IS 13947-4-1. Thermal Overload Relays: LR1-D series have been recognized by many motor manufacturers as the ideal type to assure optimum protection for the T-frame motors. Thermal Overload Relays: LR1-D features with Single phase protection A deferential slide mechanism within the Thermal Overload Relays: LR1-D assures accelerated tripping under single phase conditions & unbalanced voltages. Thermal Overload Relays: LR1-D series relays are temperature compensated to ensure that tripping characteristics remain constant over an ambient range of -40 to +60 degrees Centigrade. The LR1-D series overload relays have two independent, polarity free, one NO & one NC control contacts. The Thermal Overload Relays: LR1-D have thermal rating at 10 A
