Schneider Electric Thermal Overload Relay 1 NO/1 NC, 30-40 A FLC, 40A Contact Rating, 22 kW Power, 690V Supply Voltage LRD340

Schneider Electric LRD340 Thermal Overload Relay is an industrial-grade three-pole motor protection relay with a power rating of 22 kW, suitable for use in electrical automation and control systems. It is engineered to safeguard motors from overload conditions within a supply voltage of 690 V.

The device features an adjustable current range from 30 to 40 amperes, designed to protect motors with full load currents of 30 A and 40 A. The relay contact configuration consists of 1 normally open (NO) and 1 normally closed (NC) contact, facilitating reliable control in industrial circuits.

Its design includes screw terminals for secure electrical connections and a convenient push button reset mechanism for quick manual resetting after a trip. The product mounts under contactors and supports a three-pole, single pole and throw configuration, making integration straightforward in automated setups.

The operating temperature range from -20°C to 60°C allows robust performance in various environmental conditions. The contact voltage rating of 1 kV AC ensures safe and stable operation. Schneider Electric LRD340 meets multiple international standards such as UL 60947-5-1, CSA C22.2 No 60947-4-1, EN/IEC 60947-4-1 and GB/T 14048 series certifications, ensuring compliance and reliability for industrial use.

This relay finds applications in industrial automation, manufacturing plants, HVAC systems, and electrical distribution networks where motor protection is critical. Its compact dimensions (55 mm width, 70 mm length, and 116 mm depth) allow easy installation in control panels.

Set contains one Schneider Electric LRD340 Thermal Overload Relay, ready for immediate deployment in industrial electrical control systems. The relay has 1 normally open and 1 normally closed contact configuration. Suitable for motors with full load current ratings of 30 and 40 amperes.

Features screw terminal type for secure electrical connections. Incorporates a push button reset method for easy manual reset. Designed for under-contactor mounting with a three-pole configuration. Rated contact current is 40 amperes with a contact voltage of 1 kV AC.

Built to operate within temperature ranges from -20°C to 60°C. Protects motors up to 22 kW power at 690 V supply voltage. Complies with international standards including UL, CSA, EN/IEC, and GB/T certifications. Explore the full range of Schneider Electric control and relay devices on EnvMart to enhance your automation and electrical protection solutions.