Schneider Electric LRD340 Thermal Overload Relays
Schneider Electric LRD340 Thermal Overload Relays
Product Description:
- A Thermal Overload Relay is a protective device used in electrical circuits to prevent motors and other equipment from overheating due to excessive current flow.
- It operates based on the principle of thermal expansion, making it a reliable safeguard against prolonged overload conditions.
- Thermal overload relays are an essential component of motor starters and motor control centers.
- These relays are commonly use in applications such as pumps, fans, conveyor systems, and any equipment that involves electric motors.
Product Specification:
| Tripping threshold | 1.14 +/- 0.06 Ir conforming to IEC 60947-4-1 |
|---|---|
| Auxiliary contact composition | 1 NO + 1 NC |
| [Ith] conventional free air thermal current | 5 A for signalling circuit |
| Permissible current | 0.95 A at 380 V AC-15 for signalling circuit 0.06 A at 440 V DC-13 for signalling circuit |
| [Ue] 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 signalling circuit 4 A BS for signalling circuit |
| [Uimp] rated impulse withstand voltage | 6 kV |
