Schneider Electric (Square D) LRD3359 Thermal Overload Relay 65A

Description

Schneider Electric (Square D) LRD3359 Thermal Overload Relay

The Schneider Electric (Square D) LRD3359 is a thermal overload relay rated at 65 amps, engineered to provide dependable overcurrent and overload protection for three-phase motors in commercial and industrial HVAC applications. Designed to mount directly onto TeSys D-series contactors, this overload relay offers a compact, integrated solution that simplifies panel wiring and reduces installation time.

Key Features

• 65 amp thermal overload protection for three-phase motor circuits
• Designed for direct mounting on Schneider Electric TeSys D-series contactors
• Bimetallic thermal trip mechanism for accurate and reliable overload detection
• Manual and automatic reset modes for flexible operation
• Built-in trip indicator for fast fault diagnosis
• Phase-loss sensitivity to protect motors from single-phasing conditions
• Compact DIN-rail compatible design for space-efficient panel installations
• Integral test and stop functions for commissioning and maintenance

Application

The LRD3359 is well-suited for protecting compressor motors, fan motors, pump motors, and other HVAC equipment loads where reliable overload protection is essential. Its direct contactor-mounting design eliminates the need for additional wiring between the overload and contactor, streamlining panel assembly in commercial HVAC and industrial control systems.

Why Choose the LRD3359

Schneider Electric’s Square D brand is a globally recognized leader in motor control and protection. The LRD3359 delivers proven thermal overload technology with the reliability and quality that HVAC professionals and electrical contractors depend on. Its straightforward installation, clear trip indication, and compatibility with TeSys D contactors make it a go-to solution for motor protection in demanding environments.