Designed for high-performance power distribution, this 225-amp electronic trip circuit breaker offers sophisticated LSI protection for demanding commercial environments. The plug-on configuration installs into ABB ReliaGear neXT panelboards, acting as a functional upgrade for older Spectra RMS SF250 units. Featuring a 150kA interrupting capacity at 240VAC, it includes true RMS sensing, current-limiting capabilities, and fully adjustable trip settings to optimize system reliability and safety.
HACR Rated, Current Limiting, Reverse Feed, 100% Rated
Product FAQs
5 answers
What panelboards are compatible with the XT4HU3225EYJ000XXX breaker?
This plug-on molded case circuit breaker is designed specifically for seamless integration into ABB ReliaGear neXT panelboards.
How do the LSI trip functions operate on this electronic breaker?
The LSI designation stands for Long-Time, Short-Time, and Instantaneous protection. These adjustable settings allow panel builders to customize the trip curve for overload and short-circuit protection, ensuring selective coordination with downstream devices.
What are the wiring requirements for the lugs on this breaker?
The factory-installed lugs are rated for both copper and aluminum conductors, accepting wire sizes from 4 AWG up to 300 kcmil. Always verify proper torque specifications during installation to ensure a secure connection.
What is the advantage of the plug-on mounting for this XT4 breaker?
Designed for ABB ReliaGear neXT panelboards, the plug-on line-side connection eliminates the need for bolted bus connections. This speeds up installation and reduces the chance of loose connections.
Is this breaker part of the SACE Tmax XT series?
Yes, the XT4HU3225EYJ000XXX belongs to the ABB SACE Tmax XT family of molded case circuit breakers, specifically utilizing the XT4 frame size.
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