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Schneider Electric LRD21 - Thermal Overload Relay (12-18A, 600/690VAC)

Schneider Electric
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Schneider Electric LRD21 is a thermal overload relay designed for protecting three-phase AC motors from damage due to overcurrent conditions. It operates on a voltage rating of 600/690VAC and features an adjustable current setting range from 12 to 18 amps, housed within a compact 66 mm x 45 mm x 70 mm (HxWxD) enclosure weighing 0.324 lb. This relay is constructed for reliable performance in ambient temperatures from -20 to 60 °C and carries comprehensive global certifications including UL, CSA, EN/IEC, and ATEX. It is typically applied in industrial control panels and motor starter combinations, compatible with TeSys D series contactor frames like WPS, WPH, WPF, and WPX.

Key Features & Specifications
  • Type: Thermal overload relay, TeSys D family, LRD type
  • Voltage Rating: 600/690VAC
  • Current Rating: Adjustable, 12 - 18 A
  • Dimensions: 66 mm H x 45 mm W x 70 mm D (2.6 in x 1.8 in x 2.8 in)
  • Weight: 0.324 lb
  • Standards: EN/IEC, UL, CSA, GB/T, CCC, EAC, BV, RINA, DNV-GL, LROS, ATEX INERIS, UKCA
  • Applications: Motor protection in industrial control systems
  • Relay Style: Thermal
  • Configuration: 3-pole
  • Phase: 3
  • Aux Contacts: 1NO/1NC
  • Temp Rating: -20 to 60 °C (28 to 158 °F)
  • Compatible Frames: WPS, WPH, WPF, WPX
  • Country of Origin: France


Product Identification
  • UPC: 785901206798
  • GTIN: 03389110346831