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LRD481

The Schneider LRD481 is a Thermal Overload Relay designed to protect motors from damage caused by overheating due to prolonged overload conditions. It is part of the LRD series and is used in conjunction with contactors to form a motor protection circuit.

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Description: Product Name: Schneider LRD481 Type: Thermal Overload Relay Application: Protects electric motors from overloads by monitoring the current flowing to the motor. It is commonly used in industrial and commercial applications where motors need to be protected from thermal damage due to overload conditions. Rated Current: 12-18 Amperes (adjustable range) Mounting Type: DIN rail or direct mounting on contactors Compatibility: Can be paired with Schneider LC1D series contactors for motor protection. Adjustable Trip Class: 10A, 20A, and 30A settings for different protection classes. Protection Type: Overload protection with manual reset. Key Specifications: Rated Current: Adjustable from 12A to 18A (varies depending on the model and application) Adjustment Range: 12A to 18A Trip Class: Class 10 (standard trip curve) Operating Voltage: Suitable for use with circuits up to 690V AC Frequency: 50/60 Hz Rated Insulation Voltage (Ui): 690V AC Trip Type: Thermal protection (uses the bimetallic element principle to detect overloads) Reset Type: Manual reset after an overload trip Overload Protection: Protects motors by preventing the current from exceeding a preset value for extended periods, which could lead to overheating and damage. Ambient Temperature Range: -25°C to +60°C Protection Class: IP20 (for terminal protection against contact with fingers or objects larger than 12mm) Mechanical Life: 10 million operations Electrical Life: 50,000 operations (at rated current) Mounting: Mounted on the LC1D contactor or separately on a panel