Miniature circuit breaker, SIGMA

Sigma Elektrik Miniature Circuit Breakers, MCB are high-quality protective devices manufactured in Turkey in compliance with TS 5018-1 and EN 60898-1 standards and conforming to CE requirements. They provide effective protection for electrical circuits against overload and short-circuit faults, as well as safe and reliable circuit switching.  

Designed for residential, commercial, and light industrial applications, they can be customized with a wide range of accessories — such as motor operators, trip coils, auxiliary contacts, and control coils — to match specific installation needs.  

Key Features 

• Protection functions against overloads and short circuits.  

• Pole options: 1, 2, 3, and 4 pole models.  

• Rated currents: from 1 A up to 125 A.  

• Breaking capacities: 4.5 kA, 6 kA, 10 kA, and 16 kA.  

• Tripping curves: selectable B and C options depending on load characteristics.  

• High electrical and mechanical endurance.  

• Heat-resistant body material up to 960 °C.  

• On/Off status indicator.  

• Wide accessory support: motor mechanisms, auxiliary contacts, and more upon request.