Circuit breaker Polot MCN125E 1P C 25A 6kA AC

The Polot MCN125E 1P C 25A 6kA AC is a single-pole miniature circuit breaker designed to protect branch circuits in residential and light commercial electrical installations. It features a C tripping characteristic for general-purpose protection against overloads and short circuits, a rated current of 25 A and a rated breaking capacity of 6 kA (AC). The device mounts on a standard DIN rail and provides reproducible trip behaviour for reliable circuit protection.

Advantages

Compact single-pole design suitable for DIN-rail distribution boards, with clear on/off indication and consistent thermal-magnetic tripping behaviour. The C characteristic offers a balance between sensitivity to moderate inrush currents and protection against short-circuit conditions. Rated for 25 A continuous current and a 6 kA breaking capacity, the breaker accommodates typical household and light commercial loads while meeting basic safety requirements.

Suitable for

• Protection of lighting circuits and socket outlets in homes
• Small offices and retail spaces with moderate electrical demands
• Branch circuit protection in distribution boards with limited fault current exposure
• Applications requiring DIN-rail mounting and simple manual switching

When it may not be suitable

This breaker is not intended for use as a main incomer in installations with high prospective short-circuit currents that exceed its 6 kA breaking capacity. It may also be unsuitable where selective coordination with upstream protection devices is required or where different tripping characteristics (B, D, or specific motor protection) are necessary.

Key specifications

• Number of poles: 1
• Tripping characteristic: C (thermal-magnetic)
• Rated current: 25 A
• Breaking capacity: 6 kA (AC)
• Mounting: standard DIN-rail
• Application: residential and light commercial branch-circuit protection

How to use

Install the single-pole breaker into a compatible DIN-rail distribution board following local electrical codes. Connect the line conductor to the breaker’s input terminal and the load conductor to the output terminal, ensuring tightened terminals to the manufacturer’s torque recommendations. Turn the handle to the ON position for normal operation; if the breaker trips, move the handle to OFF, identify and clear the fault, then reset by switching back to ON. For safety, isolate supply before installation or maintenance and verify connections with appropriate testing tools.

What to consider before purchase

• Confirm that a 25 A rated current and C characteristic match the circuit load and inrush profiles
• Verify that the installation prospective short-circuit current does not exceed 6 kA
• Ensure compatibility with the existing DIN-rail distribution board and terminal conductor sizes
• Check local regulations for required protection coordination and additional residual-current protection if applicable

Usage recommendations

Use this breaker for individual branch circuit protection where moderate inrush currents are present (typical lighting and general-purpose socket circuits). Combine with appropriate upstream protective devices and follow local wiring standards to ensure selective and safe operation.