Modular isolating switch 1P 40A 230VAC SBN140

Modular isolating switch – safety and reliability in your installation

This single-pole isolating switch with a rated current of 40A is a key element of any electrical installation where effective and safe disconnection of circuits is required. The device is designed for use in both residential and industrial environments, providing reliable operation in a wide range of conditions. The compact design (only 1 module) allows for optimal use of space in the switchboard.

Functionality and application

The SBN140 switch is used to completely disconnect the circuit, providing both current conduction under normal conditions and effective disconnection in the event of overloads or short circuits. Its main task is to isolate the circuit, which guarantees safety during maintenance or repair. This makes it ideal for:

• Electrical installations in homes and apartments
• Electrical switchboards
• Building automation systems
• Industrial applications requiring safe disconnection of circuits

Construction and characteristic features

The switch is characterized by a solid construction made of high-quality plastic, which ensures its durability and resistance to mechanical damage. Clear status indication (red/green markings on the lever) makes it easy to quickly identify the switch position – on or off. Screw terminals allow for secure and stable connection of wires with a cross-section from 2.5 mm² to 25 mm² (rigid) or 2.5 mm² to 16 mm² (flexible). The device meets the standards IEC 60947-3, IEC/EN 60669-2 and IEC/EN 60669-4, which confirms its compliance with the highest safety standards. The rated switching capacity is 0.846 kA and the short-circuit strength (Icw) is 0.6 kA. The rated current of the device is 40A at a rated voltage of 230V AC. The IP20 protection degree provides protection against finger contact and against the ingress of solid objects larger than 12.5 mm.