ELEKTROPLAST OCB/B25/3P Circuit Breaker 3-Pole B-Curve 25A 6kA

The ELEKTROPLAST OCB/B25/3P is a professional-grade 3-pole miniature circuit breaker engineered to provide robust protection for electrical circuits. With a rated current of 25A and a B-curve tripping characteristic, this device is specifically designed to safeguard wiring and connected equipment against overloads and short circuits. It features a 6kA breaking capacity, making it a reliable component for modern electrical distribution systems in both residential and commercial environments.

Advantages

This circuit breaker offers exceptional reliability and safety for electrical installations. Its B-curve characteristic ensures a quick response to short-circuit currents, effectively preventing damage to sensitive electrical components. The 3-pole design allows for simultaneous disconnection of all three phases, providing comprehensive protection for three-phase circuits. Built with high-quality materials, the device ensures long-term durability and consistent performance under standard operating conditions.

Suitable for

• Residential electrical distribution boards
• Commercial office power systems
• Three-phase motor protection
• General lighting and socket circuits

When it may not be suitable

This device is not intended for use in environments with extreme moisture, high levels of dust, or corrosive atmospheres unless housed in an appropriate IP-rated enclosure. It is also not suitable for applications requiring a C or D tripping curve, such as circuits with high inrush currents from large inductive loads or motors.

Key specifications

• Number of poles: 3
• Rated current: 25A
• Tripping characteristic: B-curve
• Breaking capacity: 6kA
• Mounting type: DIN rail

How to use

The circuit breaker should be installed by a qualified electrician onto a standard 35mm DIN rail within a distribution board. Ensure that the supply cables are securely fastened to the input terminals and the load cables to the output terminals, following the torque specifications provided by the manufacturer. Once installed, the device is operated via the front-facing toggle switch, which indicates the status of the circuit.

What to consider before purchase

• Verify that the 25A rating matches the requirements of your circuit load.
• Ensure the B-curve characteristic is appropriate for your specific electrical equipment.
• Confirm that the 6kA breaking capacity meets local safety regulations for your installation site.
• Check the available space in your distribution board for a 3-pole module.

Usage recommendations

Regularly inspect the circuit breaker for any signs of physical damage or discoloration. It is recommended to perform a functional test of the toggle mechanism periodically to ensure smooth operation. Always disconnect the power supply before performing any maintenance or modifications to the electrical system.