TeSys LRD thermal overload relays - 23...32 A - class 10A

LRD3353
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Description

TeSys LRD thermal overload relay, 32A/1000V, thermal setting range 23-32A, tripping class 10A, for protection of 3-phase motors 15kW@400V. Differential device with phase failure and load unbalance detection. It provides a thermal adjustement dial, a manual-automatic reset selector acting also as reset button, a trip test button for simulation of a tripping, a stop button, 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 LC1D80-D95. Mounting on DIN rail or screw fixing, separated from the contactor, with use of a terminal block LA7D3064 (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 1000 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1
[ui] Rated Insulation Voltage power circuit: 1000 V conforming to IEC 60947-4-1
[uimp] Rated Impulse Withstand Voltage 6 kV conforming to IEC 60947-1
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 115 mm
Device Short Name LRD
Dielectric Strength 2.2 kV at 50 Hz conforming to IEC 60947-1
Flame Retardance V1 conforming to UL 94
Height 8.0 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 0.51 kg
Network Frequency 0...400 Hz
Network Type AC|DC
Product Certifications IEC
Product Compatibility LC1D80
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 8.8 cm
Connections - Terminals power circuit: screw clamp terminals 1 cable(s) 4-35 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 0.72 A at 500 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 23-32 A
Tripping Threshold 1.14 +/- 0.06 Ir conforming to IEC 60947-4-1
Range TeSys
Product Compatibility LC1D80|LC1D95
[ui] Rated Insulation Voltage power circuit: 1000 V conforming to IEC 60947-4-1 , power circuit: 1000 V conforming to IEC 60947-4-1 , power circuit: 1000 V conforming to IEC 60947-4-1 , 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
Length 12.0 cm
Activity PPCTR

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