Description

Schneider LRE357 | Thermal overload relay,EasyPact TVS,37…50A,class 10A

Schneider LRE357: Comprehensive Overview

Introduction

The Schneider LRE357 is a thermal overload relay designed to protect motors against overheating caused by overcurrent, phase imbalance, or phase failure. As part of Schneider Electric’s reliable and durable line of motor protection solutions, this relay is optimized for use with TeSys contactors, ensuring seamless integration in industrial and commercial applications.

Technical Specifications

• Model Number: LRE357
• Current Range: Adjustable from 23 to 32 A
• Compatible Contactor Range: Designed for use with TeSys D series contactors
• Trip Class: Class 10 (suitable for standard motor protection)
• Mounting Type: Direct mounting on contactor or separate mounting
• Reset Option: Manual and automatic reset options available
• Standards Compliance: Meets IEC 60947-4-1

Key Features

1. Precise Motor Protection:
   • Adjustable thermal overload setting ensures protection tailored to motor specifications.
2. Wide Compatibility:
   • Integrates seamlessly with TeSys D contactors for streamlined motor control solutions.
3. Phase Loss Protection:
   • Safeguards motors from damage caused by phase failure or imbalance.
4. User-Friendly Operation:
   • Equipped with a clear trip indicator and dual reset options for convenient use.
5. Robust and Compact Design:
   • Built for durability in demanding industrial environments while maintaining a space-saving form factor.

Applications

The Schneider LRE357 is widely used in:

• Industrial Automation: Protects motors driving machinery and equipment.
• HVAC Systems: Ensures reliable motor operation in heating, ventilation, and air-conditioning systems.
• Material Handling: Safeguards conveyor motors from thermal damage.
• Pumps and Compressors: Prevents motor burnout in critical fluid handling systems.

Benefits

• Enhanced Motor Reliability: Reduces wear and tear by protecting against overcurrent and phase faults.
• Improved Safety: Prevents potential hazards by automatically disconnecting the motor during fault conditions.
• Cost-Effective Maintenance: Minimizes downtime and extends motor lifespan.
• Ease of Integration: Simplifies motor control setup with direct mounting capabilities.