Schneider LRD318 Thermal Overload Relays 12 – 18 A - LRD318
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Schneider LRD318 Thermal Overload Relays 12 – 18 A
Schneider LRD318 Thermal Overload Relays Main Specification
- Range:
- Product name:
- Differential thermal overload relay
- LRD device’s short name
- Motor protection relay application
- Product compatibility:
- DC & AC network type
- Thermal overload class 10A conforming to IEC 60947-4-1
- 12 – 18 A thermal protection adjustment range
- Power circuit rated insulation voltage:
- 600 V conforming to CSA
- 600 V conforming to UL
- 690 V conforming to IEC 60947-4-1
Complementary
- 0 – 400 Hz network frequency
- Mounting support:
- Plate, with specific accessories
- Rail, with specific accessories
- Under contactor
- 1.14 +/- 0.06 Ir tripping threshold conforming to IEC 60947-4-1
- 1 NO + 1 NC auxiliary contact composition
- 5 A conventional free air thermal current 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
- 690 V AC 0 – 400 Hz rated operational voltage for power circuit conforming to IEC 60947-4-1
- Associated fuse rating:
- 4 A gG for signalling circuit
- 4 A BS for signalling circuit
- 6 kV rated impulse withstand voltage
- Tripping current 130 % of Ir on two phase, the last one at 0 phase failure sensitivity
- Control type:
- Red push-button: stop
- Blue push-button: reset
- -20…60 °C temperature compensation
- Control circuit, screw clamp terminals 2 cables1-2.5 mm²:
- Flexible without cable end
- Flexible with cable end
- Solid without cable end
- Power circuit, EverLink BTR screw connectors 1 cable 1-35 mm²:
- Flexible without cable end
- Flexible with cable end
- Solid without cable end
- Tightening torque:
- Control circuit: 1.7 N.m – on screw clamp terminals
- Power circuit: 5 N.m – on EverLink BTR screw connectors
Environment
- Climatic withstand Conforming to IACS E10
- IP20 conforming to IEC 60529
- -20…60 °C ambient air temperature for operation without derating conforming to IEC 60947-4-1
- -60…70 °C ambient air temperature for storage
- V1 flame retardance conforming to UL 94
- Mechanical robustness:
- Shocks: 15 Gn for 11 ms conforming to IEC 60068-2-7
- Vibrations: 4 gn conforming to IEC 60068-2-6
- 1.89 kV at 50 Hz dielectric strength conforming to IEC 60947-1
- Standards:
- EN/IEC 60947-4-1
- EN/IEC 60947-5-1
- UL 60947-4-1
- UL 60947-5-1
- CSA C22.2 No 60947-4-1
- CSA C22.2 No 60947-5-1
- GB/T 14048.4
- GB/T 14048.5
- EN 50495
- Product certifications:
- IEC
- UL
- CSA
- CCC
- EAC
- DNV-GL
- RMRS
- EU-RO MR
- LROS (Lloyds register of shipping)
- ATEX INERIS
- UKCA
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