LRE489 | EasyPact TVS Thermal Overload Relay – 394..630 A – Schneider Electric

SKU: LRE489

44,505.00 Excl. GST

Dispatch By : 14 Weeks

Dispatch By : 14 Weeks

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The Schneider Electric LRE489 is an overload relay from the Easy TeSys range, engineered for motor control and switching in demanding Indian and international installations. Key ratings include 394–630 A, <= 690 V AC, IP00. Buy the LRE489 | EasyPact TVS Thermal Overload Relay - 394..630 A online at myelectric.in with GST invoice, genuine-product assurance, and fast delivery across India — bulk and worldwide export enquiries welcome.

📋 Technical Specifications

Product
BrandSchneider Electric
Part Number / SKULRE489
CategoryOverload Relay
Main
RangeEasy TeSys
Range of productEasy TeSys Protect
Product or component typeDifferential thermal overload relay
Device short nameLRE
Relay applicationMotor protection
Phase failure sensitivityTripping current 130 % of Ir on two phase, the last one at 0 conforming to IEC 60947-4-1
Complementary
Product compatibilityLC1E500…630
Network typeAC
Network frequency50…60 Hz
Mounting supportUnder contactor
Plate
Thermal overload classClass 10A conforming to IEC 60947-4-1
Signalling functionRelay trip indicator
Thermal protection adjustment range394…630 A
Tripping threshold1.14 +/- 0.06 Ir conforming to IEC 60947-4-1
Mechanical robustnessShocks: 6 Gn for 11 ms conforming to IEC 60068-2-7
Vibrations: 3 GN conforming to IEC 60068-2-6
Auxiliary contact composition1 NO + 1 NC
[Ith] conventional free air thermal current5 A for signalling circuit
[Ue] rated operational voltage<= 690 V AC
Associated fuse rating1000 A gG for power circuit
630 A aM for power circuit
5 A gG for signalling circuit
[Ui] rated insulation voltage690 V conforming to IEC 60947-4-1
[Uimp] rated impulse withstand voltage6 kV
Local signallingTrip indicator
Control typePush-button red stop:
Push-button green reset:
Temperature compensation-20…60 °C
Connection pitch80 mm
Connections – terminalsSignalling circuit: screw clamp terminals 2 1…2.5 mm² – cable stiffness: flexible without cable end
Signalling circuit: screw clamp terminals 2 1…2.5 mm² – cable stiffness: flexible with cable end
Signalling circuit: screw clamp terminals 2 1…2.5 mm² – cable stiffness: solid without cable end
Power circuit: lugs
Power circuit: bars – busbar cross section: 6 x 40 mm
Recommended tightening torquePower circuit: 58 N.m – on bars M12
Power circuit: 58 N.m – on lugs M12
Signalling circuit: 1.7 N.m – on screw clamp terminals
Height150 mm
Width242 mm
Depth148 mm
Product weight3.9 kg
Environment
StandardsEN/IEC 60947-1
EN/IEC 60947-4-1
EN/IEC 60947-5-1
GB/T 14048.1
GB/T 14048.4
GB/T 14048.5
EN/IEC 60335-1:Clause 30.2
EN/IEC 60335-2-40:Annex JJ
Product certificationsCB Scheme
CCC
CE
EAC
Protective treatmentTH conforming to IEC 60068
IP degree of protectionIP00 conforming to IEC 60529
Ambient air temperature for operation-20…60 °C without derating conforming to IEC 60947-4-1
-20…70 °C with derating
Ambient air temperature for storage-60…80 °C
Fire resistance850 °C conforming to IEC 60068-2-1
Dielectric strength6 kV at 50 Hz conforming to IEC 60255-5
Electromagnetic compatibilitySurge withstand: 6 kV conforming to IEC 60801-5
Packing Units
Unit Type of Package 1PCE
Number of Units in Package 11
Package 1 Height24.2 cm
Package 1 Width15 cm
Package 1 Length14.8 cm
Package 1 Weight4.4 kg
Contractual warranty
Warranty (in months)18

⚡ Key Features

  • Adjustable current range 394–630 A — set to the motor nameplate FLC for accurate overload detection; range covers multiple motor sizes from a single relay model.
  • Bimetal thermal element with phase-loss sensitivity — independently monitors each phase; trips if any phase carries more than ~115% of the set current, or on complete phase failure.
  • Normally open (NO) and normally closed (NC) auxiliary contacts built in — NO contact wired to motor run indicator; NC contact wired to PLC fault input or motor starter stop circuit.
  • Manufactured to IEC 60947-4-1 / IS 13947-4-1 — complies with the applicable Indian BIS and IEC international standards for this product category.
  • BIS certified, CE marked, RoHS compliant — meets Indian regulatory requirements for use in government, commercial, and industrial electrical installations.
  • Genuine authorised Schneider Electric product — sourced directly from the official distribution network with full manufacturer traceability and warranty.
  • GST invoice provided for India orders — valid for corporate procurement, government project orders, and public tender supply via myelectric.in.
  • Worldwide export available — UAE, Singapore, UK, USA, Sri Lanka & more. Contact +91 94814 00316 for bulk pricing and international shipping.

❓ Frequently Asked Questions

Q: How do I set the 394–630 A adjustable range on the LRE489 for my motor?

A: Turn the setting dial to the motor’s nameplate full-load current (FLC) — the FLC must fall within the 394–630 A range of this device. Setting it at the motor FLC (not the maximum of the range) gives correct overload trip timing while still riding through normal starting inrush. If the motor FLC is outside this range, select the adjacent rating in the same series.

Q: How do I set the LRE489 to protect a motor without causing nuisance trips on starting?

A: Set the thermal overload dial to the motor’s nameplate full-load current (FLC) — ensure the FLC is within the 394–630 A range of this relay. For star-delta starters, set the overload relay to 58% of motor FLC (line current in delta = FLC × 0.58). Allow 10 trips for the relay’s thermal memory to stabilise before adjusting the setting.

Q: Does the LRE489 provide single-phase (phase loss) protection?

A: Schneider Electric thermal overload relays include single-phase sensitivity: if one phase is lost, the remaining phases carry higher current, causing the bimetal to heat and trip within the specified time. For critical motors, add a dedicated phase-loss relay for faster response independent of load — overload relay phase-loss protection is load-dependent and may take minutes to trip at light load.

Q: What is the difference between an Overload Relay and a standard MCB — and why use the LRE489?

A: A standard MCB protects against overload and short-circuit only. An Overload Relay provides thermal overload protection calibrated to motor FLC, protecting the motor from sustained overloads that would destroy windings before a standard MCB trips. Choose the LRE489 when the application specifically requires overload relay characteristics.

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