Part of the SACE Tmax XT series, the ABB XT2LU3100FYD000XXX is a 3-pole, 100A molded case circuit breaker engineered for commercial and industrial facilities. It utilizes microprocessor-based sensing for accurate circuit protection. This unit mount MCCB integrates into ABB ReliaGear neXT panelboards. It also replaces legacy GE Spectra SEPA36AT0100 breakers when used with a retrofit kit. It features an electronic trip unit with adjustable LSI settings and a 200kAIC rating at 240V.
Which panelboards are compatible with the XT2LU3100FYD000XXX, and what is required for installation?
This breaker is designed for ABB ReliaGear neXT Panelboards and ReliaGear SB Switchboards. Installation in these systems requires the appropriate XT2 mounting bracket and hardware kit, which are typically sold separately.
Can the ABB XT2LU3100FYD000XXX replace legacy General Electric molded case circuit breakers?
Yes, ABB acquired GE Industrial Solutions, and the SACE Tmax XT series is often used to replace legacy GE Spectra RMS and Record Plus breakers. However, you must verify physical dimensions and panel mounting hardware, as direct replacement may require specific retrofit kits.
How does the LSI electronic trip unit function on this breaker?
The LSI electronic trip unit provides adjustable protection for Long-Time (overload), Short-Time (short circuit with delay), and Instantaneous (immediate short circuit) faults. This allows for precise coordination with other breakers in complex power distribution systems.
Is the XT2LU3100FYD000XXX suitable for DC power applications?
Yes, in addition to AC systems, this breaker is rated for DC applications up to 500VDC with a 75kA interrupting capacity. This makes it suitable for specific industrial DC control and distribution networks.
What wire sizes are accepted by the load side lugs on the XT2LU3100FYD000XXX?
The factory-installed load side lugs accept 10 AWG to 2/0 AWG copper or aluminum conductors. Ensure you use the correct torque specifications provided by ABB during installation to prevent terminal failure.
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