Miniature Circuit Breaker Series

As a professional high quality Ceho Miniature Circuit Breaker Series manufacturer, we will offer you the best after-sale service. With our MCBs, your electrical installations are protected from overload and short circuits, and electrical safety in residential, office and other buildings, as well as industrial applications, is better protected. When the device detects a fault, it automatically opens the circuit, thus avoiding wire damage and fire hazards. We offer two trip mechanisms: a delayed thermal trip mechanism for overload protection and a magnetic trip mechanism for short-circuit protection.

For over a century, we have continuously innovated MCBs and expanded our product line to meet the needs of a wide range of applications and markets. Our products comply with global product standards such as IEC, UL, and CSA. This proven and certified portfolio is designed to provide maximum safety for buildings, assets, and infrastructure.

Features

- Rated insulation voltage (Ui): 250V, 500V

- Maximum working voltage UBmax: 1P, 1P+N 240/415 VAC; 2P, 3P, 4P, 3P+N 415 VAC

- Rated short-circuit capacity Icn: 3kA, 4.5kA, 6kA

- Rated impulse withstand voltage: 4kA

- Dielectric test voltage: 2kV (50/60HZ,1min)

- Mechanical endurance: 25,000 times

- Electrical endurance: 6,000 times

- Protection grade: Installed in distribution box - IP40, Installed directly - IP20

- Rated ambient temperature 30°C

- Operating ambient temperature: -20°C~60°C

- Storage temperature: -40°C~70°C

Specifications