ABB XT1SU3110AFD000XXX 110A 3P Molded Case Circuit Breaker – XT1 Series – Thermal Magnetic – 35kA @ 480V

The ABB XT1SU3110AFD000XXX is a 110A, 3-pole molded case circuit breaker from the SACE Tmax XT1 series, designed for industrial and commercial power distribution applications. It provides reliable overcurrent protection through a fixed thermal-magnetic trip unit, delivering both long-time and instantaneous (LI) protection for electrical systems.

This unit-mount MCCB is designed for seamless integration into ABB SACE Tmax XT panelboards and switchboards, making it suitable for both new installations and replacement of legacy Tmax T1 series breakers. Its compact XT1 frame ensures efficient use of panel space while maintaining high-performance protection.

With a 35kA interrupting rating at 480VAC, this breaker delivers strong fault-clearing capability for demanding electrical environments.

Voltage and Rating

• Current Rating: 110 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 electrical distribution

Technical Specifications

• Dimensions (HxWxD): 5.12" x 3.00" x 2.76"
• Weight: 2.4 lbs
• Wire Range: 10 AWG – 2/0 AWG (Cu/Al)
• Max Wire: 2/0 AWG
• Min Wire: 10 AWG
• Temperature Rating: -25°C to 70°C
• Construction Features: HACR Rated, Reverse Feed, Double Insulated, Current Limiting
• Standards: CSA C22.2 No. 5, IEC 60947-2, UL 489

Product Data

• Manufacturer: ABB
• Model Number: XT1SU3110AFD000XXX
• Product Series: XT1 (SACE Tmax XT1)
• Installation Type: Unit Mount
• Compatible Equipment: ABB SACE Tmax XT Panelboards and Switchboards