ABB XT3S Circuit Breaker

Core Performance & Industrial Application

The ABB SACE Tmax XT3S is the S-class 225 A frame molded case circuit breaker (MCCB) for 600Y/347 VAC distribution and motor protection.

Frame 225 A; TMF fixed thermal-magnetic trip; S interrupting level: 65 kA @240 VAC, 35 kA @480 VAC, 10 kA @600Y/347 VAC; fixed or plug-in versions; 25,000 mechanical operations.

Front terminals standard; auxiliary contacts, shunt/UV release, motor operator and handle accessories available; reverse-feed capable; 100% rated continuous up to 225 A.

It serves main/feeder protection spare replacement on Tmax XT installed bases.

Technical Specifications

▶ Product type: Molded case circuit breaker (MCCB)

▶ Brand: ABB SACE Tmax XT

▶ Model: XT3S (225 A frame, S class; exact trip/rating per suffix)

▶ Frame: 225 A; rated voltage 600Y/347 VAC / 500 VDC; 3P or 4P

▶ Trip: TMF fixed thermal-magnetic; MCS / MCP options

▶ Breaking (S): 65 kA @240V; 35 kA @480V; 10 kA @600Y/347V

▶ Mechanical life: 25,000 operations; ambient -25~+70℃

▶ Dimensions fixed 3P: 105×70×150 mm; weight 1.7 kg (3P fixed)

▶ Terminals: Front F standard; EF/ES/R/MC accessory kits; reverse feed OK

▶ Feature: 100% rated, HACR type, accessory-rich

▶ Note: Exact current rating, poles, trip setting and interrupting class confirmed from nameplate before ordering

▶ Country of origin: Italy/USA

▶ Compliance: CE, UL489, CSA C22.2 certification

Industry Applications

Applied in low-voltage distribution panel main/feeder protection and Tmax XT MCCB spare replacement on industrial switchgear.

Note: Confirm frame rating, TMF setting, poles and accessory set against nameplate before ordering