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Schneider TeSys LRD Thermal Overload Relay · 37-50 A · IP20 · LRD350LRD350↓ 1% off MRP1 / 4
BrandSchneider
CategoryIndustrial Control
Specification37…50 A
Brand SKULRD350
AvailabilityIn stock · ships in 24h
Delivery8 to 15 business days after dispatch
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Schneider TeSys LRD Thermal Overload Relay · 37-50 A · IP20 · LRD350

Setting: 37…50 A
$203.49/pc-1%
MRP $205.55
Wholesale · 15+ units
$193.32 /pc
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$203.49 /pc
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TeSys LRD thermal overload relay, 50A/690V, thermal setting range 37-50A, tripping class 10A, for protection of 3-phase motors 22kW@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 EverLink BTR screw terminals , it connects directly to the bottom terminals of 3-pole contactors LC1D40A-D80A. Mounting on DIN rail or screw fixing, separated from the contactor, with use of a terminal block LAD96560 (to be ordered separately). Multi standards certified (IEC, UL, CSA, CCC, EAC, Marine), Green Premium compliant (RoHs/Reach).

As published by Schneider. Verify critical parameters against the datasheet before specifying.
Schneider Schneider TeSys LRD Thermal Overload Relay · 37-50 A · IP20 · LRD350 · LRD350
Ingress protectionIP20
Reference standardEN/IEC 60947-4-1
Net weight0.375 kg
BrandSchneider
Brand SKULRD350
ELINERH24KFFR9
Sold asPer pc
Depth123 mm
RangeTeSys · TeSys Deca
Width55 mm
Height70 mm
StandardsEN/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 · EN 50495
Control typeRed push-button: stop · Blue push-button: reset
Network typeDC · AC
Product nameTeSys LRD · TeSys Deca
Flame retardanceV1 conforming to UL 94
Mounting supportPlate, with specific accessories · Rail, with specific accessories · Under contactor
Device short nameLRD
Network frequency0...400 Hz
Relay applicationMotor protection
Tightening torqueControl circuit: 1.7 N.m - on screw clamp terminals · Power circuit: 5 N.m - on EverLink BTR screw connectors
Climatic withstandconforming to IACS E10
Tripping threshold1.14 +/- 0.06 Ir conforming to IEC 60947-4-1
Dielectric strength1.89 kV at 50 Hz conforming to IEC 60947-1
Permissible current0.95 A at 380 V AC-15 for signalling circuit · 0.06 A at 440 V DC-13 for signalling circuit
Mechanical robustnessShocks: 15 Gn for 11 ms conforming to IEC 60068-2-7 · Vibrations: 4 gn conforming to IEC 60068-2-6
Product compatibilityLC1D65A · LC1D50A · LC1D40A
Associated fuse rating4 A gG for signalling circuit · 4 A BS for signalling circuit
Product certificationsIEC · UL · CSA · CCC · EAC · DNV-GL · RMRS · EU-RO MR · LROS (Lloyds register of shipping) · ATEX INERIS · UKCA
Thermal overload classClass 10A conforming to IEC 60947-4-1
Connections - terminalsControl circuit: screw clamp terminals 2 cable(s) 1…2.5 mm² flexible without cable end · Control circuit: screw clamp terminals 2 cable(s) 1…2.5 mm² flexible with cable end · Control circuit: screw clamp terminals 2 cable(s) 1…2.5 mm² solid without cable end · Power circuit: EverLink BTR screw connectors 1 cable(s) 1…35 mm² flexible without cable end · Power circuit: EverLink BTR screw connectors
IP degree of protectionIP20 conforming to IEC 60529
Temperature compensation-20…60 °C
Phase failure sensitivityTripping current 130 % of Ir on two phase, the last one at 0
Product or component typeDifferential thermal overload relay
Auxiliary contact composition1 NO + 1 NC
[Ui] rated insulation voltagePower circuit: 600 V conforming to CSA · Power circuit: 600 V conforming to UL · Power circuit: 690 V conforming to IEC 60947-4-1
[Ue] rated operational voltage690 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1
Ambient air temperature for storage-60…70 °C
Thermal protection adjustment range37…50 A
Ambient air temperature for operation-20…60 °C without derating conforming to IEC 60947-4-1
[Uimp] rated impulse withstand voltage6 kV
[Ith] conventional free air thermal current5 A for signalling circuit
Ratings as published by Schneider (se.com). Verify critical parameters against the datasheet before specifying.
Is Schneider TeSys LRD Thermal Overload Relay · 37-50 A · IP20 · LRD350 genuine and warranty-backed?

Yes. Every Schneider product on Elume is 100% genuine, sourced through authorised channels, and carries the manufacturer's standard warranty.

Do you deliver outside India?

Yes, to every country except Pakistan, North Korea, Iran, Syria, Cuba, Russia, Belarus and Afghanistan, and the Crimea, Sevastopol, Donetsk, Luhansk, Zaporizhzhia and Kherson regions. The delivery fee depends on weight and destination and is shown at checkout; international orders are paid by card in US dollars. The full rules are on our shipping page.

Is there a wholesale or bulk rate?

Yes. Orders of 15 or more pcs get a wholesale price below the listed Elume price, applied automatically and shown on every product page.

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