Description
The Schneider Electric (Square D) LRD05 is a thermal overload relay engineered to provide reliable motor protection across a wide range of commercial and industrial HVAC applications. Designed to mount directly onto TeSys D-series contactors without additional wiring, this relay delivers precise, adjustable overload protection in a compact, panel-ready package.
Product Overview
The LRD05 is part of the Square D TeSys LRD series of bimetallic thermal overload relays. It monitors motor current and trips the circuit when sustained overcurrent conditions are detected, protecting motors, compressors, fans, and other HVAC equipment from thermal damage caused by overloads, phase loss, or phase imbalance.
Key Features
- Current setting range: 0.63–1 Amp
- Direct mounting to TeSys D contactors (LC1D series) — no additional wiring required
- Bimetallic thermal overload protection with manual or automatic reset
- Built-in phase loss and phase imbalance sensitivity
- Trip class 10A for standard motor protection
- Integrated test and reset buttons for convenient field servicing
- Lockable stop button for added safety
- Normally open (NO) and normally closed (NC) auxiliary contacts included
- DIN rail or direct contactor mounting
Specifications
- Brand: Schneider Electric / Square D
- Model / SKU: LRD05
- Current Range: 0.63–1 Amp
- Relay Type: Bimetallic Thermal Overload
- Compatible Contactors: TeSys D (LC1D09–LC1D38)
- Reset Mode: Manual or Automatic
- Auxiliary Contacts: 1 NO + 1 NC
- Series: TeSys LRD
Applications
- Small HVAC motors and fan motors
- Commercial refrigeration compressor protection
- Pump and blower motor circuits
- Industrial control panels requiring motor overload protection
- Building automation and mechanical room starters
Why Choose the Schneider Electric LRD05?
The TeSys LRD series is a globally recognized standard in motor protection. The LRD05’s plug-in design eliminates wiring errors and speeds up panel assembly, while its adjustable current dial allows technicians to fine-tune protection settings in the field. The built-in phase loss sensitivity adds an extra layer of protection for three-phase motor applications, helping prevent costly motor burnouts.
Reviews
There are no reviews yet.