Schneider Electric LRD08 Overload Relay
Schneider Electric LRD08 Overload Relay
Product Description:
- An Overload Relay is a protective device used to safeguard electrical motors and circuits from damage due to excessive current (overload conditions).
- It does not respond to short circuits but protects against sustained overcurrent that can overheat the motor.
- They are often integrated into motor control panels and are part of a motor starter or motor control circuit.
- They are commonly use in industrial and commercial settings where motors power a wide range of machinery and equipment.
- The overload relay monitors the current flowing through the motor.
- It does this by using a current sensor, such as a thermal element (often a bimetallic strip) or electronic current measurement circuit.
- Overload relays protect motors from overheating, which can lead to motor burnout or damage to winding insulation.
Product Specification:
| Tripping threshold | 1.14 +/- 0.06 Ir IEC 60947-4-1 |
|---|---|
| Auxiliary contact composition | 1 NO + 1 NC |
| [Ith] conventional free air thermal current | 5 A signalling circuit |
| Permissible current | 3 A 120 V AC-15 signalling circuit 0.22 A 125 V DC-13 signalling circuit |
| [Ue] rated operational voltage | 690 V AC 0…400 Hz power circuit IEC 60947-4-1 |
| Associated fuse rating | 4 A gG signalling circuit 4 A BS signalling circuit |
| [Uimp] rated impulse withstand voltage | 6 kV |
| Phase failure sensitivity | Tripping current 130 % of Ir on two phase, the last one at 0 |
| Control type | Red push-button stop Blue push-button reset |
| Temperature compensation | -4…140 °F (-20…60 °C) |
