ABB XT1SU3015AYD000XXX Molded Case Circuit Breaker

This breaker integrates into ABB ReliaGear neXT Panelboards and ReliaGear SB Switchboards. It utilizes the SACE Tmax XT design, which replaced legacy GE Spectra RMS breakers in many modern ABB distribution assemblies.

When terminating conductors on the XT1SU3015AYD000XXX, the standard lugs accept 10 AWG to 2/0 AWG copper or aluminum wire. Always verify the specific torque requirements printed on the breaker faceplate or ABB installation manual before energizing.

No. This specific model features a fixed thermal and fixed magnetic trip unit (LI function). If you require adjustable overload or short-circuit settings, you will need to select a breaker with an electronic trip unit, such as an Ekip DIP, available in other Tmax XT frames.

Yes, the XT1SU3015AYD000XXX is rated for DC systems up to 250VDC with an interrupting capacity of 42kA. When applying molded case circuit breakers in DC circuits, verify the wiring configuration and series pole requirements specified by ABB for your specific voltage.

Yes. Following ABB's acquisition of GE Industrial Solutions, the SACE Tmax XT series replaced the legacy GE Spectra RMS line. You can install this XT1 breaker into existing GE Spectra panelboards and switchboards by using the appropriate ABB Tmax XT retrofit kit.

This is a unit-mount circuit breaker. It fastens directly to the mounting pan or chassis using screws, rather than plugging onto busbars. Ensure your ReliaGear assembly is configured for unit-mount XT1 frames.

The LI designation indicates that the thermal-magnetic trip unit provides Long-Time (L) protection for overloads and Instantaneous (I) protection for short circuits. This is the standard protection scheme for general power distribution.

Yes. The ABB Tmax XT1 frame supports a wide range of internal accessories, including auxiliary contacts (AUX) and shunt opening releases (SOR). These accessories are field-installable and mount directly inside the breaker housing.

Yes. Like most ABB Tmax XT molded case circuit breakers, the XT1SU3015AYD000XXX carries a HACR (Heating, Air Conditioning, and Refrigeration) rating, making it suitable for protecting multi-motor HVAC equipment circuits.

Yes. ABB Tmax XT1 molded case circuit breakers do not have a line or load restriction. Power can be supplied to either the top or bottom terminals, allowing for reverse feed applications up to the maximum voltage rating.