Description
LRD21 – TeSys Deca thermal overload relay 12 to 18 A class 10A
TeSys LRD overload relays are designed to be used with TeSys D contactors to make a motor starter. This overload relay can be used with 9 amp through 38 amp TeSys D contactors. These differential thermal overload relays detect over currents in the lines to the motor. When an overcurrent is detected the overload relay working with the contactor will disconnect the power to the motor. This will minimize the damage to the motor windings. This overload relay has an adjustable trip current rating of 12 to 18 amperes. This trip current rating is calibrated per Class 10A. Multi standards certified (IEC, UL, CSA, CCC, EAC, ATEX, Marine).
Thermal protection adjustment range: 12…18 A
Thermal protection class: Class 10A IEC 60947-4-1
Product compatibility: LC1D32, LC1D18, LC1D25, LC1D38
Network type: AC, DC
Rated insulation voltage [Ui]: Power circuit 600 V CSA, Power circuit 600 V UL, Power circuit 690 V IEC 60947-4-1
Network frequency: 0 to 400 Hz
Mounting support: Plate with specific accessories, Rail with specific accessories, Under contactor
Tripping threshold: 1.14 +/- 0.06 Ir IEC 60947-4-1
Auxiliary contact composition: 1 NO + 1 NC
Conventional free air thermal current [Ith]: 5 A signalling circuit
Permissible current: 1.5 A 240 V AC-15 signalling circuit, 0.1 A 250 V DC-13 signalling circuit
Rated operational voltage [Ue]: 690 V AC 0 to 400 Hz power circuit IEC 60947-4-1
Associated fuse rating: 4 A gG for signalling circuit, 4 A BS for signalling circuit
Rated impulse withstand voltage [Uimp]: 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 to 60 °C
Connections – terminals: Control circuit screw clamp terminals 2 1 to 2.5 mm² flexible without cable end, Control circuit screw clamp terminals 2 1 to 2.5 mm² flexible with cable end, Control circuit screw clamp terminals 2 1 to 2.5 mm² solid, Power circuit screw clamp terminals 1 1.5 to 10 mm² flexible without cable end, Power circuit screw clamp terminals 1 1 to 4 mm² flexible with cable end, Power circuit screw clamp terminals 1 1 to 6 mm² solid
Tightening torque: Control circuit 1.7 N.m screw clamp terminals, Power circuit 2.5 N.m screw clamp terminals
Dimensions (Height x Width x Depth): 6.6 cm x 4.5 cm x 7 cm
Net weight: 0.124 kg
Climatic withstand: IACS E10
IP degree of protection: IP20 conforming to IEC 60529
Ambient air temperature for operation: -20 to 60 °C without derating IEC 60947-4-1
Ambient air temperature for storage: -60 to 70 °C
Flame retardance: V1 conforming to UL 94
Mechanical robustness: Vibrations 6 Gn IEC 60068-2-6, Shocks 15 Gn for 11 ms IEC 60068-2-7
Dielectric strength: 1.89 kV 50 Hz 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, BV, RINA, DNV-GL, LROS (Lloyds register of shipping), ATEX INERIS, UKCA
Customs Tariff Code: US10I1222347
GTIN: 3389110346831
Country of origin: FR
Packaging: Package 1 – Type: PCE, Quantity: 1, Height: 5.000 cm, Width: 7.800 cm, Length: 8.800 cm, Weight: 147 g; Package 2 – Type: S02, Quantity: 24, Height: 15.000 cm, Width: 30.000 cm, Length: 40.000 cm, Weight: 3.842 kg
Warranty: 18 months
