Load disconnect switch 3P+PEN/160A SZ160.41

Fuse disconnect switch – reliable installation protection

This four-pole fuse disconnect switch, designed to work with NH00 fuse links, is a key element in protecting electrical installations. It provides effective isolation and safe disconnection of circuits, protecting against overloads and short circuits. The design with separate terminal covers for incoming and outgoing conductors increases safety during installation and maintenance.

Construction and application

The SZ160.41 disconnect switch is designed for pole mounting, making it an ideal solution in applications requiring solid and durable protection, such as transformer stations, main distribution boards or higher power supply points. Equipped with 8 KG45.5 terminals, it allows connection of conductors with a cross-section of up to 120 mm². The fourth pole (PEN) is permanently connected to the housing, which simplifies installation and ensures proper grounding. A dedicated ST33 rod (available separately) is used to operate the disconnect switch, ensuring safe and convenient manipulation.

Key features and benefits

• High short-circuit resistance: The rated conditional short-circuit current Iq is as high as 50 kA, guaranteeing reliable operation in the event of a failure.

• Versatility: Can be used with both aluminum and copper conductors (2x(16-120) mm²).

• Safety of use: Separate terminal covers minimize the risk of accidental contact with live conductors during service work.

• Easy operation: Designed to work with the ST33 rod (available separately), which allows remote switching on and off of the circuit.

• Compliance with standards: Meets the requirements for safety and main disconnect switches, ensuring compliance with applicable standards.

• Solid construction: Made of high-quality materials, guarantees long-lasting and trouble-free operation even in difficult environmental conditions.

• Rated current: Adapted to work with a rated continuous current Iu at 160A and a maximum operating voltage Ue AC of 415V.

• Installation flexibility: The possibility of connecting cables to the side of the device facilitates installation in tight spaces.

The SZ160.41 disconnect switch is characterized by a rated continuous current of 160A and the ability to withstand a short circuit of 50kA. It is adapted to work at a maximum voltage of 415V AC and cooperates with NH00 type fuse links. It accepts aluminum or copper conductors with a cross-section of up to 120 mm².

The SZ160.41 disconnect switch is an investment in the safety and reliability of your electrical installation – for both professionals and end users.