The Acti9 series of MCBs by Schneider Electric provides excellent circuit protection particularly in combating short circuits and overload currents. These MCBs are rigorously tested by Schneider and are compliant with standards such as IEC/EN 60898 & 60947-2. These types of MCBs are typically used in industrial or commercial buildings and can work extremely well in polluted environments.

Keep yourself and your equipment safe from overcurrents with this MCB from Schneider Electric. It trips when it encounters three to five times the rated current of 3A. With its type B tripping characteristics, this breaker is ideal for protecting resistive loads such as lighting or electronic circuits. A 240V AC voltage rating makes it suitable for use with the UK mains supply. As the MCB is mountable on a DIN rail, it helps you to build a tidy system. Compact dimensions of 85 (L) x 18 (W) x 78.5mm (D) take up little space in busy arrangements.

• Single-pole operation is ideal for protecting domestic and low-power commercial devices
• VisiSafe green strip lets you see at a glance whether the contacts are correctly positioned
• Padlockable to prevent tampering

• Data centres
• Commercial buildings
• Educational institutions

Both an MCB and a fuse protect equipment against damage from overcurrents and people from electric shock. The main difference is that a fuse is single-use and always has to be replaced once blown. On the other hand, you can reset a tripped MCB after you've identified and fixed the fault that caused it to cut the electrical flow.

EN/IEC 60947-2, EN/IEC 60898-1.