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LRD3357 | TeSys LRD Thermal Overload Relays – 37…50 A – Class 10A
Manufacturer: Schneider Electric
Product Overview
The LRD3357 is a thermal overload relay from the TeSys LRD series by Schneider Electric. Designed for motor protection, this relay ensures reliable operation by monitoring the current flow and disconnecting the motor in case of overload or phase failure. It is suitable for a wide range of industrial applications.
Key Features
- Current Range: 37…50 A
- Class: 10A (Trip Class)
- Mounting: Screw mounting
- Compatibility: Compatible with TeSys D contactors
- Adjustable Settings: Allows precise adjustment of the current setting for optimal motor protection
- Manual/Auto Reset: Selectable reset mode for flexibility in operation
- Phase Failure Protection: Detects and responds to phase loss to prevent motor damage
- Ambient Temperature: Operates reliably in temperatures up to 60°C
- Standards Compliance: Meets IEC/EN 60947-4-1 standards
- Durability: Robust construction for long-lasting performance in harsh environments
Applications
The LRD3357 thermal overload relay is ideal for use in:
- Industrial motor control systems
- Pumps and compressors
- Conveyors and material handling systems
- HVAC systems
- Machinery and equipment requiring motor protection
Technical Specifications
| Parameter | Value |
|---|---|
| Rated Current | 37…50 A |
| Trip Class | 10A |
| Mounting Type | Screw mounting |
| Reset Mode | Manual or Auto |
| Phase Failure Protection | Yes |
| Ambient Temperature | Up to 60°C |
| Standards | IEC/EN 60947-4-1 |
Warranty and Support
Schneider Electric offers a standard warranty on the LRD3357 thermal overload relay. For technical support and warranty claims, contact Schneider Electric’s customer service.
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