Schneider LRD32 TeSys Deca Thermal Overload Relay 23-32A

The Schneider Electric LRD32 is a TeSys Deca differential thermal overload relay for motor protection, offering an adjustable current setting of 23 to 32 A and trip class 10A per IEC 60947-4-1. Compatible with LC1D25, LC1D32, and LC1D38 contactors, it mounts directly below the contactor and operates on AC and DC networks rated up to 690 V.

Technical specifications:

• Commercial reference: LRD32
• Manufacturer: Schneider Electric
• EAN:
• Series / range: TeSys LRD, TeSys Deca
• Product type: Differential thermal overload relay
• Relay application: Motor protection
• Compatible contactors: LC1D25, LC1D32, LC1D38
• Network type: AC and DC
• Trip class: Class 10A per IEC 60947-4-1
• Thermal overload setting: 23...32 A
• Rated insulation voltage: 690 V AC per IEC 60947-4-1; 600 V per UL and CSA
• Network frequency: 0...400 Hz
• Rated impulse withstand voltage: 6 kV
• Trip threshold: 1.14 +/- 0.06 Ir per IEC 60947-4-1
• Phase loss sensitivity: trip at 130% of Ir in two phases
• Auxiliary contact: 1 NO + 1 NC
• Mounting: below contactor, or on plate / DIN rail with separate accessories
• Connection type: screw terminal blocks
• Power circuit cable: 1.5...10 mm² (solid or flexible)
• Control circuit cable: 1...2.5 mm²
• IP protection rating: IP20 per IEC 60529
• Operating temperature: -20...60 °C
• Storage temperature: -60...70 °C
• Dimensions (W x H x D): 45 x 66 x 70 mm
• Weight: 0.124 kg
• Certifications: IEC, UL, CSA, CCC, EAC, BV, RINA, DNV-GL, LROS, ATEX INERIS, UKCA

Features and benefits:

• Adjustable current setting from 23 to 32 A provides flexible motor protection across a wide power range
• Phase loss detection trips at 130% of Ir in two phases to guard against single-phase faults
• Temperature compensation from -20 to 60 °C maintains consistent tripping characteristics
• 1 NO + 1 NC auxiliary contact enables signalling and control circuit integration
• Direct mounting below TeSys D contactors enables compact motor starter assembly

Applications:

• Thermal overload protection of three-phase electric motors
• Motor starter assemblies combined with TeSys D contactors (LC1D25, LC1D32, LC1D38)
• Industrial automation and machine control panels
• Pump, compressor, and fan motor protection in process industries
• HVAC and building services motor control

Compliant with EN/IEC 60947-4-1, EN/IEC 60947-5-1, UL 60947-4-1, CSA C22.2 No 60947-4-1, GB/T 14048.4, and EN 50495. Part of the Schneider Electric TeSys Deca range.

Also known as: Schneider LRD32, Schneider Electric LRD32, TeSys thermal overload relay 23-32A.