Schneider Electric LR2-D2353 Thermal Overload Relay
Schneider Electric LR2-D2353 Thermal Overload Relay
Product Description :
- It is a protective device used in electrical systems to protect electric motors and other equipment from overheating and damage caused by excessive currents. It operates based on the principle that excessive current flowing through a motor causes it to heat up, potentially leading to insulation damage or mechanical failure.
- The core component is one or more bimetallic strips. These strips are made of two different metals with different coefficients of thermal expansion bonded together. When heated, the metals expand at different rates, causing the strip to bend.
- They have contacts that open or close based on the status of the bimetallic strips or heater elements. When the relay detects overheating (excessive current), it trips and opens the contacts to disconnect power to the motor or equipment.
- It provides a thermal adjustement dial, a manual-automatic reset selector, a test selector for simulation of a tripping, reset and stop buttons, a flag indicator and 2 auxiliary contacts 1NO+1NC for fault signalling.
Product Specification :
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Network frequency 50/60 Hz Mounting support Plate, with EverLink power terminal block
Rail, with EverLink power terminal blockTripping threshold 1.14 +/-0.06 In A conforming to IEC 60947-4-1 Surge withstand 6 kV conforming to IEC 60801-5 [Ue] rated operational voltage 690 V AC 50/60 Hz for power circuit conforming to IEC 60947-4-1 Phase failure sensitivity Tripping current I 30 % of Ir on one phase, the others at Ir conforming to IEC 60947-4-1 Tightening torque Control circuit: 1.7 N.m on screw clamp terminals Height 121 mm Width 75 mm Depth 100 mm
