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LRD3322 SCHNEIDER

LRD3322 SCHNEIDER

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The LRD3322 is a differential thermal overload relay from the TeSys Deca range, designed for motor protection. It offers an adjustable current range of 17–25 A, class 10A trip curve, and features phase-failure sensitivity for reliable safety. Compatible with LC1D80 and LC1D95 contactors, it includes 1 NO + 1 NC auxiliary contacts for control and signaling. Compact, robust, and easy to mount on plate, rail, or directly under contactors, it ensures dependable motor protection in industrial applications.
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SKU: EL-01-004
Product Code: LRD3322



The LRD3322 is a differential thermal overload relay from the TeSys Deca range, designed for motor protection. It offers an adjustable current range of 17–25 A, class 10A trip curve, and features phase-failure sensitivity for reliable safety. Compatible with LC1D80 and LC1D95 contactors, it includes 1 NO + 1 NC auxiliary contacts for control and signaling. Compact, robust, and easy to mount on plate, rail, or directly under contactors, it ensures dependable motor protection in industrial applications.

Specification Value
Product Schneider Electric TeSys Deca Thermal Overload Relay
Model LRD3322
Application Motor protection
Thermal Overload Class Class 10A (IEC 60947-4-1)
Adjustment Range 17 … 25 A
Rated Insulation Voltage (Ui) 1000 V (IEC), 600 V (UL/CSA)
Rated Impulse Withstand Voltage (Uimp) 6 kV
Tripping Threshold 1.14 ± 0.06 Ir (IEC 60947-4-1)
Auxiliary Contacts 1 NO + 1 NC
Conventional Free Air Thermal Current (Ith) 5 A (signalling circuit)
Permissible Current 0.72 A (500 V AC-15), 0.06 A (440 V DC-13)
Phase Failure Sensitivity Trips at 130% Ir on 2 phases
Operating Temperature -20 °C … +60 °C
Storage Temperature -60 °C … +70 °C
Protection IP20 (IEC 60529)
Mounting Under contactor, plate, or rail (with accessories)
Dimensions (W x H x D) 70 mm x 81 mm x 115 mm
Weight 0.51 kg
Standards IEC 60947-4-1, IEC 60947-5-1, UL 60947-4-1, CSA, GB/T, EN 50495
Certifications CE, UL, CSA, CCC, EAC, ATEX INERIS, UKCA