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Schneider Electric Thermal Overload Relay 40A Contact Rating 690V AC LR3D340
Specifications
| Country of Origin | India |
|---|---|
| Brand | Schneider Electric |
| Length | 55mm |
| Model | LR3D340 |
| Depth | 70mm |
| Width | 123mm |
| Series | LR3D |
| Maximum Operating Temperature | 60°C |
| Minimum Operating Temperature | -20°C |
| Terminal type | Screw |
| Supply Voltage | 690V ac |
| Reset Method | Push Button |
| Relay Contact Current | 40A |
Key Features
- Designed for overload protection, phase failure, long starting times, and prolonged motor stalling.
- Features push button reset method for manual resetting.
- Includes trip indicator and sealable cover for status visibility and safety.
- Equipped with 1 NO and 1 NC auxiliary contacts for control applications.
- Direct mounting beneath three-pole contactors or independent DIN rail mounting.
- Operation temperature range from -20°C to 60°C.
- Rated for 40A relay contact current and supply voltage of 690V AC.
- Terminal connections via screw type ensures secure wiring.
Product Description
Schneider Electric LR3D340 Thermal Overload Relay is engineered to protect AC motor circuits from overload conditions, phase failures, extended start-up times, and prolonged motor stalls. This three-pole device is suitable for a wide range of industrial and commercial applications including HVAC, manufacturing, electrical automation, and process control.
The relay features an adjustable setting dial allowing precise workload calibration and a push button for easy reset operations. The presence of a trip indicator and sealable cover enhances operational safety and fault diagnostics.
Its 1 normally open (NO) and 1 normally closed (NC) auxiliary contacts enable integration with control systems for enhanced functionality. Designed for direct installation under three-pole contactors or on DIN rails independently, it offers versatile mounting options.
Operating within -20°C to 60°C temperature ranges and rated for 690V AC supply voltage with a 40A contact current rating, this relay ensures durable and reliable performance in harsh environments. The screw-type terminals guarantee secure electrical connections, while insulation withstands voltages up to 600V with surge resistance of 6kV.
The compact form factor with dimensions 123mm width, 55mm length, and 70mm depth allows easy integration into existing control panels. This product conforms to industry standards relevant to motor protection in industrial, laboratory, and electrical automation settings.
Designed for overload, phase failure, and motor stall protection. Adjustable setting dial for precise current calibration. Manual push button reset mechanism. Trip indicator with sealable cover for safety. 1 NO and 1 NC auxiliary contacts included.
Mounts directly below three-pole contactors or on DIN rails. Operating temperature range of -20°C to 60°C. Rated supply voltage of 690V AC and contact current of 40A. Compact dimensions optimized for panel integration. High insulation and surge voltage tolerance.
Ideal for industrial motor protection, electrical automation, HVAC, manufacturing, and process control applications. Discover more innovative Schneider Electric products and explore extensive ranges in our Electronics & Electricals category at EnvMart.
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Frequently Asked Questions
The LR3D340 thermal overload relay has a contact rating of 40A.
It is rated for a maximum supply voltage of 690V AC.
The operating temperature range for the LR3D340 is from -20°C to 60°C.
This relay features a push button reset method for manual resetting after a trip event.
It includes 1 normally open (NO) and 1 normally closed (NC) auxiliary contact for control applications.
The dimensions are 123mm in width, 55mm in length, and 70mm in depth.
The relay uses screw-type terminal connections for secure wiring.
Yes, it can be directly mounted beneath three-pole contactors or independently on DIN rails.
This model is suitable for industrial motor protection, HVAC, manufacturing, and electrical automation applications.
It features a trip indicator and a sealable cover for status visibility and safety.
The insulation withstands voltages up to 600V with a surge resistance of 6kV.
The country of origin for this relay is India.
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