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Schneider Electric LR3D12 - Thermal Overload Relay 5.5-8A (Class 10A)

Schneider Electric
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Schneider Electric LR3D12 is a thermal overload relay from the TeSys D family designed for motor protection against overloads and phase failures. This 3-pole relay operates with an adjustable amperage range of 5.5 to 8 A and a voltage rating up to 690 VAC, featuring a Class 10A tripping characteristic suitable for unbalanced loads. The unit measures 2.6 in (66 mm) in height, 1.8 in (45 mm) in width, and 2.8 in (70 mm) in depth, weighing 0.311 lb, and is constructed with a bi-metallic thermal overload mechanism in an IP20 enclosure for plate or rail surface mounting. It complies with EN/IEC 60947-4-1, EN/IEC 60947-5-1, UL 60947-4-1, UL 60947-5-1, CSA C22.2 No 60947-4-1, CSA C22.2 No 60947-5-1, GB/T 14048.4, GB/T 14048.5, and EN 50495 standards. Typical industrial applications include motor control centers, conveyor systems, and pump protection in manufacturing and processing environments.

Key Features & Specifications
  • Type: Thermal overload relay
  • Amperage range: 5.5 to 8 A adjustable
  • Voltage rating: up to 690 VAC
  • Number of poles: 3
  • Mounting type: Plate/Rail surface mount
  • Trip class: 10A
  • Contact form: 1NO-1NC
  • Enclosure type: IP20
  • Thermal overload type: Bi-metallic
  • Impulse withstand voltage: 6 kV
  • Temperature rating: -20 to 60 °C operating
  • Dimensions: 2.6 in (66 mm) x 1.8 in (45 mm) x 2.8 in (70 mm) (Height x Width x Depth)
  • Weight: 0.311 lb
  • Family: TeSys D
  • Country of Origin: France
  • Certification: EN/IEC 60947-4-1, EN/IEC 60947-5-1, UL 60947-4-1, UL 60947-5-1, CSA C22.2 No 60947-4-1, CSA C22.2 No 60947-5-1, GB/T 14048.4, GB/T 14048.5, EN 50495


Product Identification
  • UPC: 785901206873
  • GTIN: 00389110346964