Schneider TeSys LRDT / LR9D Series Electronic Overload Relays

Schneider TeSys LRDT / LR9D Series Electronic Overload Relays Suppliers, Exporters in India

Schneider TeSys LRDT / LR9D Series Electronic Overload Relays are designed to provide accurate and dependable protection for three-phase AC motors operating in industrial environments. Unlike conventional thermal overload relays, the LR9D series uses electronic current sensing to deliver precise overload protection over a wide adjustment range, making it suitable for applications with varying motor loads and demanding operating conditions.

The relays protect motors against overload, phase loss, phase imbalance and stalled rotor conditions, helping reduce the risk of motor damage and unplanned downtime. Selected models also include an alarm function that provides an early warning before the relay trips, allowing operators to take corrective action where possible.

Designed to work with Schneider TeSys contactors, the LR9D Series offers direct mounting, compact installation and simple adjustment through front-mounted controls. Manual test and reset functions, adjustable trip classes and a transparent protective cover make routine operation and maintenance straightforward.

Models Covered

The TeSys LRDT / LR9D Series includes a wide range of electronic overload relays, including:

• LR9D01
• LR9D02
• LR9D03
• LR9D04
• LR9D06
• LR9D08
• LR9D10
• LR9D16
• LR9D21
• LR9D25
• LR9D32
• LR9D32S
• LR9D3567
• LR9D5367
• LR9D5567
• LR9D67

Additional LR9D variants are available with different current ranges, trip classes and compatible TeSys contactors.

Specifications

• Product Name: Schneider TeSys LRDT / LR9D Series Electronic Overload Relays
• Product Family: TeSys
• Relay Type: Electronic Overload Relay
• Application: Three-Phase AC Motor Protection
• Rated Operational Voltage: Up to 1000 V AC (model dependent)
• Current Setting Range: Model dependent, from low-current applications up to 150 A
• Trip Classes: Class 5, 10, 20 and 30 (model dependent)
• Protection Functions: Overload, Phase Loss, Phase Imbalance and Stall Protection
• Reset Mode: Manual or Automatic
• Alarm Function: Available on selected models
• Auxiliary Contacts: Built-in signalling contacts
• Mounting: Direct mounting with TeSys contactors or panel mounting
• Connection: Screw terminal connection
• Standards: IEC, UL, CSA, CCC, EAC, Marine, RoHS and REACH compliant (model dependent)

Features

• Electronic motor overload protection with high accuracy
• Wide adjustable current setting range
• Detects overload, phase loss and phase imbalance
• Selectable trip classes on supported models
• Early alarm function on selected versions
• Manual test and reset controls
• Manual or automatic reset selection
• Transparent cover to protect relay settings
• Direct mounting with Schneider TeSys contactors
• Compact design for motor control panels
• Reliable protection for continuous industrial operation
• Simple installation and maintenance

Applications

• Motor control centres (MCC)
• Industrial automation systems
• Pumps and pumping stations
• Compressors
• Fans and ventilation equipment
• Conveyor systems
• Material handling equipment
• Packaging machinery
• Water and wastewater treatment plants
• Mining and cement industries
• Oil and gas facilities
• Manufacturing plants
• OEM machinery
• Process industries