Modular isolating switch 2P 25A 230V SBN225

Modular isolating switch – reliable disconnection in your installation

This two-pole isolating switch with a rated current of 25A and a voltage of 230V is a key element ensuring safety and control in electrical circuits. It is ideal for both home and commercial installations where a reliable disconnection of receivers is required. Its compact design (only 1 module wide) makes it easy to mount in distribution boards, saving valuable space.

Functionality and application

The SBN225 switch is used to safely disconnect electrical circuits during maintenance, repairs or failures. Its design allows for visual verification of the status – open/closed – which increases work safety. The rated switching capacity of 0.529 kA provides effective protection against the effects of short circuits. Because this is a circuit breaker, not just a switch, it provides complete isolation from the power supply on the load side.

Key features and benefits

• Compact dimensions: A width of only 1 module allows for efficient use of space in the distribution board.
• High reliability: Rated short-circuit current Icw of 0.375 kA guarantees stable operation under overload conditions.
• Safety of use: IP20 protection degree protects against accidental contact with live parts.
• Versatility: Suitable for operation with AC 230V and wires with a cross-section from 1.5 to 16 mm².
• Durable construction: Mechanical endurance of 200,000 cycles ensures long device life.
• Wire cross-section: Support for flexible wires (1.5 - 10 mm²) and rigid wires (1.5 - 16 mm²) provides flexibility during installation.
• Operating temperature: A wide range of operating temperatures (-20 to 70°C) allows use in various environmental conditions.

Installation and parameters

The switch has screw terminals, which ensures a secure and durable connection with the wires. The installation depth is 68 mm and the height is 83 mm – it is worth considering these dimensions when planning the installation. The rated insulation voltage Ui is 440 V, and the rated impulse voltage Uimp is 4000 V, which confirms its high resistance to overvoltages. The lack of switching and normally open contacts simplifies the connection diagram and increases the clarity of the device's operation.