Telemecanique Thermal Overload Relay for TeSys 5.5-8A LRD12 Motor
SNR LRD12
3389110346800
Schneider Telemecanique differential thermal overload relay with the following characteristics:
- Rated operating voltage [Ue]: 690 V "AC" 0...400 Hz for Power Circuit in accordance with IEC 60947-4-1
- Relay application: motor protection
- Mains type: DC - "AC
- Thermal overload trip class: Class 10A per IEC 60947-4-1
- Setting range thermal protection: 5.5...8°.
- Mains frequency: 0...400 Hz
- Trip threshold: 1.14 +/-0.06 Ir compliant with IEC 60947-4-1
- Auxiliary contact composition: 1 NO + 1 NC
- Conventional thermal current in air [Ith]: 5A for signaling circuit
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Other features:
- Associated fuse rating: 4 A gG for signaling circuit - 4 A BS for signaling circuit
- Rated impulse withstand voltage [Uimp]: 6 kV
- Phase failure sensitivity: Trip current 130 % of Ir on two phases, the last one at 0
- Control type: red button: stop, blue button: reset
- Temperature compensation: -20...60 °C
- Climatic sealing: complies with IACS E10
- Degree of protection IP20 in accordance with IEC 60529
- Ambient operating temperature: -20...60 °C without derating according to IEC 60947-4-1
- Storage temperature: -60/+70 °C
- Fire resistance: V1 in accordance with UL 94
Rated insulation voltage [Ui]:
- Power circuit: 600 V compliant with CSA
- Power circuit: 600 V according to UL
- Power circuit: 690V per IEC 60947-4-1
Mounting Bracket:
- Plate, with specific accessories
- Rail, with specific accessories
- Under the contactor
Allowable current:
- 1.5A at 240V AC-15 per signaling circuit
- 0.1A at 250 V DC-13 for signaling circuit
Connections - terminals
- Control circuit: screw terminals 2 cables 1...2.5 mm² flexible without cable termination
- Control circuit: screw terminals 2 cables 1...2.5 mm² flexible with cable termination
- Control circuit: screw terminals 2 wires 1...2.5 mm² solid
- Power circuit: screw terminals 1 cable 1.5...10 mm² flexible without cable termination
- Power circuit: screw terminals 1 cable 1...4 mm² flexible with cable termination
- Power circuit: screw terminals 1 cable 1...6 mm² solid
Tightening torque:
- Control circuit: 1.7 Nm - on screw terminals
- Power circuit: 1.7 Nm - on screw terminals
Mechanical robustness:
- Vibration: 6 Gn in accordance with IEC 60068-2-6
- Shock: 15 Gn for 11 ms according to IEC 60068-2-7
Dielectric strength:
- 1.89 kV at "50 Hz" complying with IEC 60947-1
Dimensions and weight:
- Height 66 mm
- Width 45 mm
- Depth 70 mm
- Weight 0,124 kg
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Data sheet
- Type: Protection relay
