Built for commercial and industrial power distribution, the XT4NU3100FYJ000XXX operates as a 100A, 3-pole molded case circuit breaker from ABB. It mounts into ReliaGear neXT panelboards and ReliaGear SB switchboards, providing an exact drop-in replacement for older T4N100TW models. Delivering a 25kAIC interrupting rating at 480VAC, this breaker stands out with its Ekip Dip LSI electronic trip unit. The adjustable functions ensure superior system coordination compared to thermal-magnetic options.
Which panelboards and switchboards are compatible with the XT4NU3100FYJ000XXX?
This breaker is designed to mount directly into ABB ReliaGear neXT power panelboards and ReliaGear SB switchboards.
What does the N in the XT4NU3100FYJ000XXX part number signify?
The N designates ABB's Normal interrupting capacity tier for the XT4 frame, which provides maximum fault protection of 65kA at 240VAC, 25kA at 480VAC, and 18kA at 600VAC.
What are the benefits of the LSI electronic trip unit on this breaker?
The Ekip Dip LSI (Long-Time, Short-Time, Instantaneous) trip unit allows for precise, adjustable protection settings. This enables better system coordination and fault isolation compared to standard fixed thermal-magnetic trip units.
Can the XT4NU3100FYJ000XXX replace older GE circuit breakers?
Yes, this ABB XT4 breaker serves as a direct drop-in replacement for legacy GE T4N100TW models in commercial and industrial power distribution systems.
Can the XT4NU3100FYJ000XXX be reverse fed?
Yes, this breaker is reverse feed capable, meaning line power can be connected to either the top or bottom terminals without affecting its protective functions.
Are lugs included with the XT4NU3100FYJ000XXX?
Yes, this unit mount breaker comes standard with line and load lugs, as well as the necessary mounting hardware for installation.
Is this breaker suitable for HVAC equipment?
Yes, the XT4NU3100FYJ000XXX is HACR rated, making it fully certified for safe use with heating, air conditioning, and refrigeration equipment.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.