ABB 1SDA067457R1 XT1H 160 TMD 50-500 4p F F 50A 4-Pole 70kA Molded Case Circuit Breaker

The ABB 1SDA067457R1 (XT1H 160 TMD 50-500 4p F F) is a 50 A, 4-pole, fixed-mounted molded case circuit breaker (MCCB) from the Tmax XT1 range, ABB's current-generation MCCB series (160 A frame). It is fitted with a thermal-magnetic (TMD) trip unit and is rated 70 kA Icu at 400 V AC. Weight is 1.4 kg.

Technical Specifications

Certifications & Standards

• RoHS: Compliant with Restriction of Hazardous Substances directive
• REACH: Compliant with EU REACH chemical regulation
• EU Directive 2011/65/EU & Amendment 2015/863: Compliant as of July 22, 2019
• IEC 60947-2: Certified to international standard for low-voltage circuit breakers
• IEC60947-2: Verified compliance with IEC standard for switchgear and controlgear
• ATEX: Certified for use in explosive atmospheres
• CE: Meets European conformity requirements for electrical equipment
• VDE: Certified by the Association for Electrical, Electronic & Information Technologies (Germany)

Selection Notes

• Rated current is 50 A; check it against the continuous load current of the circuit being protected.
• Icu is 70 kA at 400 V AC; confirm it is equal to or higher than the prospective fault current at the installation point.
• This is a 4-pole version; use it where the neutral conductor must be switched, and confirm the pole count matches the system. Mounting is fixed (not plug-in or withdrawable).
• The TMD trip unit is thermal-magnetic; check the thermal setting and magnetic trip values in the ABB catalog against the load and the protection coordination plan.