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ABB XT3NU3175AFF00NXXX — Molded Case Circuit Breakers (MCCB)

ABB XT3NU3175AFF00NXXX XT3N 225 A TMF 175-1750A 3P F F UL/CS

MPNXT3NU3175AFF00NXXX

ABB XT3N series, XT3NU3175AFF00NXXX, molded case circuit breaker, 225 A frame, TMF 175-1750 A, 3-pole, fixed thermal-magnetic trip, fixed front terminals, UL/CSA certified.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Product details

The three-pole configuration with fixed front terminals and UL/CSA certification makes it a direct fit for North American panel builds where a standard MCCB footprint and screw-terminal wiring are specified.

The description string — XT3N 225 TMF 175-1750 3P F F UL/CSA — breaks down the key selection parameters: the 225 A frame size dictates the physical footprint and bus-bar spacing; the TMF 175-1750 A trip block means the continuous current rating is field-adjustable across that range via the thermal-magnetic dial, covering motor and feeder protection from 175 A up to 1750 A. The 3P designation confirms three protected poles, and the dual F codes indicate fixed front terminals (no plug-in base) and fixed mounting. UL/CSA listing means the breaker carries the required third-party certification for US and Canadian installations, which is a gate condition for most panel shops shipping to those markets.

Frequently asked questions

What is the closest pin-compatible alternative to XT3NU3175AFF00NXXX in the XT3 family?

Within the XT3N 225 A frame, the closest alternative would be a variant with a different trip curve or accessory configuration, but the frame, pole count, and terminal style are shared across the series. For a direct functional substitute with the same TMF 175-1750 A trip, the order code would differ only in the suffix that denotes accessories or mounting. Confirm the specific accessory and terminal requirements before substituting.

Where can I buy XT3NU3175AFF00NXXX?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

What compliance documentation does ABB provide for XT3NU3175AFF00NXXX?

The UL/CSA marking in the description confirms third-party certification for the US and Canada. ABB typically provides RoHS and REACH declarations for current-production XT3N series breakers; request the specific compliance package with your RFQ.

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XT3NU3175AFF00NXXX