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Square D S144A - Molded Case Circuit Breaker 600V LSIG Protection

Square D
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Square D S144A is a molded case circuit breaker designed for comprehensive electrical protection in industrial power distribution systems. It provides LSIG (Long Time, Short Time, Instantaneous, and Ground Fault) protection with a solid-state trip unit and is rated for 600V applications. The unit is constructed with a compact form factor measuring 199.39 mm H x 53.59 mm W x 73.15 mm D and weighs 1.051 lb, and it complies with UL and CSA standards while meeting RoHS requirements. This breaker is engineered for integration into compatible Square D power circuit breaker frames including NS, NT, NW, PG, PJ, PK, PL, RG, RJ, RK, and RL for reliable system performance.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Solid State Protection, Micrologic Family
  • Voltage Rating: 600V
  • Functions: LSIG - Long Time, Short Time, Instantaneous and Ground Fault
  • Dimensions: 199.39 mm H x 53.59 mm W x 73.15 mm D (7.85 in x 2.11 in x 2.88 in)
  • Weight: 1.051 lb
  • Standards: RoHS
  • Certification: UL, CSA
  • Compatible Frames: NS, NT, NW, PG, PJ, PK, PL, RG, RJ, RK, RL
  • Country of Origin: United States


Product Identification
  • UPC: 785901979296
  • GTIN: 00785901979296