TeSys LRD thermal overload relays - 30...38 A - class 10A

LRD35
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Description

TeSys LRD thermal overload relay, 38A/690V, thermal setting range 30-38A, tripping class 10A, for protection of 3-phase motors 18.5kW@400V. Differential device with phase failure and load unbalance detection. It provides a thermal adjustement dial, a manual-automatic reset selector, a test selector for simulation of a tripping, reset and stop buttons, a flag indicator and 2 auxiliary contacts 1NO+1NC for fault signalling. Settings are protected by a transparent cover lockable by sealing. Connection by screw clamp terminals, it connects directly to the bottom terminals of 3-pole contactors LC1D32-D38. Mounting on DIN rail or screw fixing, separated from the contactor, with use of a terminal block LAD7B106 (to be ordered separately). Multi standards certified (IEC, UL, CSA, CCC, EAC, ATEX, Marine), Green Premium compliant (RoHs/Reach).

Product Details

[ue] Rated Operational Voltage 690 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1
[ui] Rated Insulation Voltage power circuit: 600 V conforming to CSA
[uimp] Rated Impulse Withstand Voltage 6 kV
Ambient Air Temperature for Operation -20-60 °C without derating conforming to IEC 60947-4-1
Ambient Air Temperature for Storage -60-70 °C
Climatic Withstand conforming to IACS E10
Compatibility Code LRD
Control Type red push-button: stop
Depth 70 mm
Device Short Name LRD
Dielectric Strength 1.89 kV at 50 Hz conforming to IEC 60947-1
Flame Retardance V1 conforming to UL 94
Height 9.000 cm
Ip Degree of Protection IP20 conforming to IEC 60529
Mechanical Robustness vibrations: 6 Gn conforming to IEC 60068-2-6
Mounting Support plate, with specific accessories
Net Weight 0.124 kg
Network Frequency 0...400 Hz
Network Type DC|AC
Product Certifications IEC
Product Compatibility LC1D32
Product Name TeSys LRD
Product or Component Type differential thermal overload relay
Range TeSys
Standards EN/IEC 60947-4-1
Tightening Torque control circuit: 1.7 N.m - on screw clamp terminals
Width 7.800 cm
Connections - Terminals control circuit: screw clamp terminals 2 cable(s) 1-2.5 mm² flexible without cable end
[ith] Conventional Free Air Thermal Current 5 A for signalling circuit
Associated Fuse Rating 4 A gG for signalling circuit
Auxiliary Contact Composition 1 NO + 1 NC
Permissible Current 1.5 A at 240 V AC-15 for signalling circuit
Phase Failure Sensitivity tripping current 130 % of Ir on two phase, the last one at 0
Relay Application motor protection
Temperature Compensation -20-60 °C
Thermal Overload Class class 10A conforming to IEC 60947-4-1 , class 10A conforming to IEC 60947-4-1
Thermal Protection Adjustment Range 30-38 A
Tripping Threshold 1.14 +/- 0.06 Ir conforming to IEC 60947-4-1
Range TeSys|TeSys Deca
Product Compatibility LC1D32|LC1D38
[ui] Rated Insulation Voltage power circuit: 600 V conforming to CSA , power circuit: 600 V conforming to CSA , power circuit: 600 V conforming to CSA , power circuit: 600 V conforming to UL , power circuit: 600 V conforming to UL , power circuit: 600 V conforming to UL , power circuit: 690 V conforming to IEC 60947-4-1 , power circuit: 690 V conforming to IEC 60947-4-1 , power circuit: 690 V conforming to IEC 60947-4-1
Length 4.900 cm
Activity PPCTR

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