Schneider LRD22 TeSys Deca Thermal Overload Relay 16-24A

The Schneider Electric LRD22 is a thermal overload relay from the TeSys Deca range, designed for motor protection in AC and DC circuits. With an adjustable setting of 16 to 24 A and Class 10A tripping per IEC 60947-4-1, it protects motors against overload and phase loss. Compatible with LC1D25, LC1D32, and LC1D38 contactors, it mounts directly below the contactor for compact starter assemblies.

Technical specifications:

• Commercial reference: LRD22
• Manufacturer: Schneider Electric
• EAN:
• Series / range: TeSys Deca (TeSys LRD)
• Thermal overload setting: 16...24 A
• Tripping class: Class 10A per IEC 60947-4-1
• Network type: AC / DC, 0...400 Hz
• Rated insulation voltage [Ui]: 690 V (IEC 60947-4-1), 600 V (UL / CSA)
• Rated operational voltage [Ue]: 690 V AC per IEC 60947-4-1
• Phase loss sensitivity: 130% of Ir in two phases, last phase at 0
• Auxiliary contact: 1 NO + 1 NC
• Mounting: below contactor; DIN rail or panel plate with accessories
• Dimensions (W x H x D): 45 x 66 x 70 mm
• Weight: 0.124 kg
• IP rating: IP20 per IEC 60529
• Operating temperature: -20...60 °C per IEC 60947-4-1
• Certifications: IEC, UL, CSA, CCC, EAC, BV, RINA, DNV-GL, ATEX INERIS, UKCA, LROS

Features and benefits:

• Phase loss detection trips at 130% of Ir in two phases, preventing motor burnout from single-phasing
• Mounts directly below LC1D25 / LC1D32 / LC1D38 contactors for compact, wiring-free starter assembly
• 1 NO + 1 NC auxiliary contact enables fault signalling and remote trip indication
• Temperature compensation across -20...60 °C maintains consistent tripping accuracy in varying ambient conditions
• Frequency range of 0...400 Hz supports both standard supplies and variable-frequency drive outputs

Applications:

• Motor starters in industrial automation and control panels
• Protection of pumps, fans, compressors, and conveyor drive motors
• Motor control centres using TeSys D contactor and overload relay assemblies
• Marine and hazardous area installations requiring DNV-GL, BV, or ATEX INERIS certification

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

Also known as: Schneider LRD22, Schneider Electric LRD22, TeSys thermal overload relay 16-24A.