TeSys LRD thermal overload relays - 30...38 A - class 10A
TeSys LRD thermal overload relays - 30...38 A - class 10A
TeSys LRD thermal overload relays - 30...38 A - class 10A
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
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[ue] Rated Operational Voltage690 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1
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[ui] Rated Insulation Voltagepower circuit: 600 V conforming to CSA
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[uimp] Rated Impulse Withstand Voltage6 kV
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Ambient Air Temperature for Operation-20-60 °C without derating conforming to IEC 60947-4-1
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Ambient Air Temperature for Storage-60-70 °C
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Climatic Withstandconforming to IACS E10
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Compatibility CodeLRD
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Control Typered push-button: stop
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Depth70 mm
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Device Short NameLRD
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Dielectric Strength1.89 kV at 50 Hz conforming to IEC 60947-1
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Flame RetardanceV1 conforming to UL 94
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Height66 mm
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Ip Degree of ProtectionIP20 conforming to IEC 60529
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Mechanical Robustnessvibrations: 6 Gn conforming to IEC 60068-2-6
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Mounting Supportplate, with specific accessories
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Net Weight0.124 kg
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Network Frequency0...400 Hz
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Network TypeDC
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Product CertificationsIEC
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Product CompatibilityLC1D32
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Product NameTeSys LRD
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Product or Component Typedifferential thermal overload relay
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RangeTeSys
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StandardsEN/IEC 60947-4-1
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Tightening Torquecontrol circuit: 1.7 N.m - on screw clamp terminals
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Width45 mm
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Connections - Terminalscontrol circuit: screw clamp terminals 2 cable(s) 1-2.5 mm² flexible without cable end
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[ith] Conventional Free Air Thermal Current5 A for signalling circuit
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Associated Fuse Rating4 A gG for signalling circuit
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Auxiliary Contact Composition1 NO + 1 NC
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Permissible Current1.5 A at 240 V AC-15 for signalling circuit
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Phase Failure Sensitivitytripping current 130 % of Ir on two phase, the last one at 0
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Relay Applicationmotor protection
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Temperature Compensation-20-60 °C
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Thermal Overload Classclass 10A conforming to IEC 60947-4-1
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Thermal Protection Adjustment Range30-38 A
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Tripping Threshold1.14 +/- 0.06 Ir conforming to IEC 60947-4-1