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Schneider Electric LR9F7579 - Overload Relay 300-500A (Solid State)

Schneider Electric
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Schneider Electric LR9F7579 is a TeSys F electronic thermal overload relay designed for precise motor protection in industrial applications. This solid-state relay provides adjustable overload protection within a 300 to 500 ampere range, suitable for motors rated 200-250 kW at 400V, and features a Class 20 trip rating with 1 normally open and 1 normally closed auxiliary contact for control signaling. The device measures 5.4 inches (136.8 mm) in height, 5.9 inches (150 mm) in width, and 5.02 inches (127.6 mm) in depth, weighs 4.363 lb, and is constructed for direct mounting below a TeSys F contactor. It holds UL, CSA, and UKCA certifications, ensuring compliance with international safety and performance standards. This overload relay is typically used in motor control centers and industrial machinery requiring reliable, adjustable overload protection within a high amperage range.

Key Features & Specifications
  • Type: Electronic Thermal Overload Relay
  • Family: TeSys F
  • Relay Style: Solid State
  • Amperage Minimum: 300 A
  • Amperage Maximum: 500 A
  • Adjustable Current Range: 300-500 A
  • Class: 20 Trip Rating
  • Auxiliary Contacts: 1 NO + 1 NC
  • Rated Motor Power: 200-250 kW at 400 V
  • Mounting: Direct attachment below TeSys F contactor
  • Dimensions: 5.4 in (136.8 mm) x 5.9 in (150 mm) x 5.02 in (127.6 mm) (Height x Width x Depth)
  • Weight: 4.363 lb
  • Certification: UL, CSA, UKCA
  • Country of Origin: France


Product Identification
  • UPC: 389110640222
  • GTIN: 03389110640229