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ABB XT1NU3040AFF000XXX - Molded Case Circuit Breaker 40A 3-Pole

ABB
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ABB SACE Tmax XT XT1NU3040AFF000XXX is a molded case circuit breaker designed for thermal magnetic overcurrent protection in low voltage power distribution systems. This 3-pole unit is rated at 40A continuous current with a voltage rating of 600Y/347 VAC, providing long time and instantaneous trip functions for reliable fault clearing. The breaker features a compact 76.2 mm x 130 mm footprint, weighs 5 lb, and utilizes a bolt-on connection with front line/load side terminals for secure installation. It complies with UL and CSA standards, carrying a 25kA interrupting rating at 480VAC for robust short-circuit protection. Typical applications include industrial panelboards, motor control centers, and commercial distribution equipment requiring a 125A frame size with fixed thermal magnetic protection.

Key Features & Specifications
  • Manufacturer: ABB
  • Family: SACE Tmax XT
  • Type: XT1NU
  • Item Subcategory: Molded Case
  • Frame Size: 125A/XT1
  • Current Rating: 40 A
  • Voltage Rating: 600Y/347 VAC
  • Number of Poles: 3
  • Phase: 3
  • Protection: Thermal Magnetic
  • Trip Type: Fixed Thermal/Fixed Magnetic (TMF)
  • Functions: Long Time and Instantaneous Trip
  • Interrupt Rating: 25 kA at 480 VAC
  • Connection: Bolt-On
  • Mounting: Front Terminals
  • Dimensions: 76.2 mm x 130 mm
  • Weight: 5 lb
  • Standards: UL, CSA
  • Certification: UL, CSA
  • Country of Origin: United States
  • Frequency: 50/60 Hz


Product Identification
  • UPC: 01564478506
  • GTIN: 08015644785062