Description

Schneider LRE21 | Thermal overload relay,EasyPact TVS,12…18A,class 10A

Schneider LRE21 | Thermal Overload Relay

The Schneider LRE21 is a thermal overload relay from the EasyPact TVS series, designed to provide efficient motor protection against overloads and phase failures. It is an ideal solution for safeguarding motors in industrial and commercial applications.

1. General Specifications

  • Product Name: Schneider LRE21

  • Series: EasyPact TVS

  • Type: Thermal Overload Relay

  • Current Range: 12A to 18A

  • Trip Class: Class 10A

  • Mounting: Direct mounting on EasyPact TVS contactors

  • Reset Mode: Manual or Automatic

  • Phase Failure Protection: Yes

2. Key Features

Reliable Motor Protection – Prevents damage from overloads and phase imbalances.
Adjustable Current Setting – Covers a range of 12A to 18A for flexibility.
Direct Mounting on Contactors – Seamless integration with EasyPact TVS contactors.
Automatic & Manual Reset Options – Enables operational flexibility.
Compact & Durable Design – Suitable for harsh industrial environments.

3. Applications

🔹 Pumps
🔹 Fans & Blowers
🔹 Conveyors
🔹 Machine Tools
🔹 Compressors

4. Protection & Safety Features

Overload Protection – Prevents excessive motor heating.
Phase Failure Detection – Protects against motor damage.
Trip Indication – Facilitates quick troubleshooting.

5. Installation & Maintenance

  • Quick & Easy Installation with direct mounting on compatible contactors.

  • Minimal Maintenance thanks to its robust and reliable design.

  • Simple Adjustment Dial for setting the appropriate current range.

Additional information

brands

Schneider Electric

Specifications

Main
Range Easy TeSys
Range of product Easy TeSys Protect
Product or component type Differential thermal overload relay
Device short name LRE
Relay application Motor protection
Phase failure sensitivity Tripping current 130 % of Ir on two phase, the last one at 0 conforming to IEC 60947-4-1
Colour Grey (RAL 7011)
Complementary
Product compatibility LC1E18...38
Network type AC
Network frequency 50...60 Hz
Mounting support Under contactor Plate, with specific accessories Rail, with specific accessories
Thermal overload class Class 10A conforming to IEC 60947-4-1
Signalling function Relay trip indicator
Thermal protection adjustment range 12…18 A
Tripping threshold 1.14 +/- 0.06 Ir conforming to IEC 60947-4-1
Mechanical robustness Shocks: 6 Gn for 11 ms conforming to IEC 60068-2-7 Vibrations: 3 GN conforming to IEC 60068-2-6
Auxiliary contact composition 1 NO + 1 NC
[Ith] conventional free air thermal current 5 A for signalling circuit
[Ue] rated operational voltage <= 690 V AC
Associated fuse rating 35 A gG for power circuit 20 A aM for power circuit 5 A gG for signalling circuit
[Ui] rated insulation voltage 690 V conforming to IEC 60947-4-1
[Uimp] rated impulse withstand voltage 6 kV
Local signalling Trip indicator
Control type Push-button red stop: Push-button green reset:
Temperature compensation -20…60 °C
Connections - terminals Power circuit: screw clamp terminals 1 1.5…6 mm² - cable stiffness: flexible without cable end Power circuit: screw clamp terminals 1 1…4 mm² - cable stiffness: flexible with cable end Power circuit: screw clamp terminals 1 1…6 mm² - cable stiffness: solid without cable end Signalling 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
Recommended tightening torque Power circuit: 1.7 N.m - on screw clamp terminals Signalling circuit: 1.7 N.m - on screw clamp terminals
Height 44.5 mm
Width 45 mm
Depth 70 mm
Net weight 0.13 kg
Environment
Standards IEC 60947-4-1 IEC 60947-5-1
Product certifications EAC
Protective treatment TH conforming to IEC 60068
IP degree of protection IP20 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 resistance 850 °C conforming to IEC 60068-2-1
Dielectric strength 6 kV at 50 Hz conforming to IEC 60255-5
Electromagnetic compatibility Surge withstand: 6 kV conforming to IEC 60801-5
Packing Units
Unit Type of Package 1 PCE
Number of Units in Package 1 1
Package 1 Height 5.200 cm
Package 1 Width 8.000 cm
Package 1 Length 8.300 cm
Package 1 Weight 149.000 g
Unit Type of Package 2 S02
Number of Units in Package 2 33
Package 2 Height 15.000 cm
Package 2 Width 30.000 cm
Package 2 Length 40.000 cm
Package 2 Weight 5.290 kg
Contractual warranty
Warranty 18 months

Main documents

Main documents

Datasheet Download Datasheet
Product datasheet LRE21
Instruction sheet
Download
Catalog Download
Environmental disclosure
Download
CAD Files Download

Main documents

Datasheet Download Datasheet
Product datasheet LRE21
Instruction sheet
Download
Catalog Download
Environmental disclosure
Download
CAD Files Download

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