ABB

ABB XT1SU3045AFD000XXX 45A 3P Molded Case Circuit Breaker – XT1 Series – Thermal Magnetic – 35kA @ 480V

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SKU: XT1SU3045AFD000XXX GTIN/UPC: 804428076994
Regular price $546.00
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The ABB XT1SU3045AFD000XXX is a 45A, 3-pole molded case circuit breaker from the SACE Tmax XT1 family, designed as a drop-in solution for commercial and industrial electrical distribution systems. It features a fixed thermal-magnetic (LI) trip unit that provides reliable long-time and instantaneous protection. Rated at 35kAIC at 480VAC, this unit-mount breaker installs into ABB Tmax XT panelboards, switchboards, and enclosures, serving as a replacement for legacy Tmax T1 series breakers. It includes copper/aluminum compatible lugs for fast and secure wiring termination.

Voltage and Rating

  • Current Rating: 45 A
  • Voltage Rating: 240VAC, 480VAC, 600Y/347VAC, 250VDC
  • AIC Rating:
    • 65kA @ 240VAC
    • 35kA @ 480VAC
    • 22kA @ 600Y/347VAC
    • 42kA @ 250VDC

Key Specifications

  • Device Type: Molded Case Circuit Breaker
  • Series: XT1
  • Number of Poles: 3-Pole
  • Phase: 3 Phase
  • Trip Technology: Thermal Magnetic
  • Trip Function Code: LI
  • Trip Function: Long-Time, Instantaneous
  • Trip Adjustability: Fixed Thermal, Fixed Magnetic
  • Mounting Style: Unit Mount
  • Terminal Type: Lugs
  • Application: Commercial and industrial power distribution

Technical Specifications

  • Wire Range: 10 AWG – 2/0 AWG
  • Max Wire: 2/0 AWG
  • Min Wire: 10 AWG
  • Temperature Rating: -25°C to 70°C
  • Construction Features: HACR Rated, Reverse Feed, Double Insulated
  • Standards: CSA C22.2 No. 5, HACR, IEC 60947-2, UL 489
  • Approvals: CCC, CE, CSA, cULus, IEC, KEMA, RINA, RoHS, UL
  • Accessories Included: Lugs (Kit FC CuAl 10–2/0 AWG)
  • Accessories Available: Auxiliary Switch, Shunt Trip, Undervoltage Release, Alarm Switch, Lug Kits

Product Data

  • Manufacturer: ABB
  • Model Number: XT1SU3045AFD000XXX
  • Product Series: XT1 (SACE Tmax XT1)
  • Product Type: Molded Case Circuit Breaker
  • For Use With: ABB SACE Tmax XT Panelboards, Switchboards, Enclosures


  • Type Circuit Breakers
  • Vendor ABB
  • Brand ABB

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You may return items within 30 days of delivery for a refund.

FREE Shipping on orders over $149.

My Circuit Breakers offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).

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In rare circumstances, My Circuit Breakers may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

My Circuit Breakers provides a comprehensive 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer). Extended warranties are available upon request.