Schneider Electric LRD04 Overload Relay
Schneider Electric LRD04 Overload Relay
Product Description:
- An overload relay is a protective device used in electrical circuits, especially in motor control systems, to protect motors and other equipment from damage caused by excessive current.
- It continuously monitors the motor’s current and disconnects the power if the current exceeds a preset limit for a specified period, preventing overheating and potential failure of the motor.
- It is a critical component in motor control systems to prevent damage to the motor and ensure safe operation.
- Without overload relays, motors could overheat and become damaged or pose safety hazards.
Product Specification:
| Network frequency | 0…400 Hz |
|---|---|
| Mounting support | Plate, with specific accessories Rail, with specific accessories Under contactor |
| Tripping threshold | 1.14 +/- 0.06 Ir conforming to IEC 60947-4-1 |
| Auxiliary contact composition | 1 NO + 1 NC |
| Conventional free air thermal current | 5 A for signaling circuit |
| Permissible current | 3 A at 120 V AC-15 for signaling circuit 0.22 A at 125 V DC-13 for signaling circuit |
| Rated operational voltage | 690 V AC 0…400 Hz for power circuit conforming to IEC 60947-4-1 |
| Associated fuse rating | 4 A gG for signaling circuit 4 A BS for signaling circuit |
| 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 | -20…60 °C |
