Telemecanique LR1-D63357 Three-Phase Overload Relay

Description:

The Telemecanique LR1D63357 thermal overload relay is a three-pole motor protection relay with an adjustable current range of 38–50 A, Class 10A tripping characteristics, and a rated insulation voltage of 660 V, designed to protect three-phase motors against overload and phase-failure conditions. Commonly installed in motor control centers, conveyors, compressors, pumps, HVAC equipment, heavy machinery, and industrial automation systems requiring dependable motor protection for medium- to high-power motors. Maintenance teams, OEMs, and system integrators use this thermal overload relay for equipment repair, replacement, retrofit, and new motor starter installations.

Applications:

The Telemecanique LR1D63357 thermal overload relay is designed to provide adjustable overload and phase-loss protection for three-phase motors in industrial motor control systems. It is widely used in manufacturing plants, material handling equipment, water treatment facilities, process industries, mining equipment, and industrial control panels where reliable motor protection and long service life are essential.

Technical Specifications:

• Manufacturer Part Number (MPN): LR1D63357
• Manufacturer: Telemecanique (Schneider Electric)
• Product Type: Thermal Overload Relay
• Series: TeSys LR1D
• Rated Voltage: 660 VAC
• Rated Current: Adjustable 38–50 A
• Function: Motor overload and phase-failure protection
• Number of Poles: 3-Pole
• Auxiliary Contacts: 2 NO + 2 NC
• Mounting Style: Direct Mount or Panel Mount
• Terminal Type: Screw Clamp Terminal
• Compatible Systems: TeSys motor starters and contactors
• Replacement Type: OEM Direct Replacement

Common Replacements:

• Schneider Electric LR1D63357
• Telemecanique LR1D63357
• OEM Equivalent 38–50A Thermal Overload Relay