Schneider Electric LR3D32 Thermal Iec Overload Relay

Product Description

The SCHNEIDER ELECTRIC LR3D32 is a thermal IEC overload relay rated for 23 to 32 amps and up to 690 VAC. It provides motor overload protection by detecting excess current draw and tripping the circuit before damage occurs. Trip Class 10A defines the relay's response time under overload conditions, making it appropriate for standard motor starting applications. Electricians and industrial maintenance technicians install this relay as part of a motor starter assembly. The compact housing measures 3.5 inches in length, 3.1 inches in width, and 1.9 inches in height, and weighs 0.32 pounds.

The LR3D32 is designed for use with contactor models LC1D25 and LC1D38, making it a direct fit for those motor starter configurations. It is suited for commercial and industrial motor control applications where IEC-standard overload protection is required. Common installation scenarios include HVAC fan motor starters, pump controllers, and other three-phase motor circuits operating within the 23 to 32 amp range at voltages up to 690 VAC.

Key Features

• Thermal sensing method provides reliable overload detection without electronic components
• Trip Class 10A rating suits standard industrial and HVAC motor starting cycles
• Wide current adjustment range of 23 to 32 amps covers multiple motor frame sizes
• Rated up to 690 VAC for compatibility with common single- and three-phase supply voltages
• Compact form factor mounts directly to LC1D25 and LC1D38 contactors without additional hardware

Compatibility

Designed for direct use with Schneider Electric contactor models LC1D25 and LC1D38 as part of a complete IEC motor starter assembly.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and any applicable local codes. De-energize the circuit and verify zero voltage with a meter before handling the relay or contactor assembly. Set the current adjustment dial to match the motor full-load amperage listed on the motor nameplate. Do not bypass or jumper the overload relay terminals during startup testing.