ABB 1SDA067427R1 XT1N 160 TMD 125-1250 4p F F InN=100% 4-Pole 125A Fixed Moulded Case Circuit Breaker

The ABB 1SDA067427R1 — catalog number XT1N 160 TMD 125-1250 4p F F InN=100% — is a 4-pole, 125 A fixed-mount moulded case power circuit breaker from the Tmax XT1 series, engineered for transformer, generator, and installation protection in industrial power distribution systems. Featuring TMD thermomagnetic trip technology and a full neutral (InN=100%) configuration across all four poles, it delivers reliable overcurrent and short-circuit protection in compact switchgear and control panel assemblies.

Technical Specifications

Certifications & Standards

• IEC 60947-2: International standard for low-voltage circuit breakers — performance and safety compliance verified
• CE: Conformité Européenne marking — meets EU safety, health, and environmental requirements
• VDE: German electrical engineering standards compliance (Verband der Elektrotechnik)
• ATEX: Certified for use in explosive atmospheres per EU ATEX Directive
• UL 2799: UL standard compliance for electrical systems
• EN 45555: European standard for end-of-life treatment of electrical and electronic equipment
• RoHS: Restriction of Hazardous Substances — compliant with EU Directive 2011/65/EU
• REACH: Registration, Evaluation, Authorisation and Restriction of Chemicals — EU REACH regulation compliant
• WEEE: Waste Electrical and Electronic Equipment Directive — compliant with EU Directive 2012/19/EU

Applications & Use Cases

• Transformer feeder and secondary-side protection in industrial power distribution panels
• Generator protection and transfer switching applications
• Main and sub-main installation protection in commercial and industrial buildings
• Motor feeder circuits requiring reliable short-circuit and overload protection
• Control panels and switchgear assemblies requiring compact 4-pole fixed-mount breakers
• Hazardous-area installations requiring ATEX-certified protective devices