Disconnect switch 4P/160A SZ160.4

Disconnect switch with fuse combination unit – reliable installation protection

The 4P/160A SZ160.4 disconnect switch with fuse combination unit is a key element of any electrical installation, providing effective protection against overloads and short circuits. The device is designed to work with NH00 fuses, guaranteeing compatibility with a wide range of solutions available on the market. The switch design allows for quick and safe disconnection of the circuit in the event of a failure or the need to perform maintenance work.

Construction and application

The SZ160.4 disconnect switch has been designed for demanding applications, both in industrial installations and in public buildings. Made of durable materials – aluminum resistant to weather conditions and plastic resistant to UV radiation – it ensures long-lasting and reliable operation. KG45 connection terminals allow connection of aluminum and copper cables with a cross-section of 16 to 120 mm², providing great flexibility during installation. The cable entry direction from the side facilitates cable management inside the distribution board.

• Purpose: Protection of electrical circuits against overloads and short circuits.
• Application: Industrial installations, public buildings, main and secondary distribution boards.
• Compatibility: NH00 fuses.
• Cable cross-section: Al/Cu 2x(16-120)mm².

Key features and benefits

• High rated current: 160A allows protection of circuits with high power consumption.
• Four-pole design (4P): Provides complete protection of all phases and the neutral conductor (depending on the installation configuration).
• Rated conditional short-circuit current (Iq): 50 kA – high resistance to short-circuit currents, which increases installation safety.
• Universal KG45 terminals: Allow connection of aluminum and copper cables with a wide range of cross-sections, making installation easier and reducing costs.
• Durable construction: The housing made of aluminum alloy and insulating elements resistant to weather conditions ensure long-lasting and reliable operation even in harsh environmental conditions.
• Compliance with standards: Meets the requirements of EN 60947-3 and IEC 60947-3 standards, guaranteeing safety and high product quality.
• Can be used as a main disconnect switch: This functionality allows for central disconnection of power in the event of the need to perform maintenance or emergency work.

The SZ160.4 disconnect switch with fuse combination unit is a solid and reliable solution for professionals and end-users looking for effective protection of their electrical installations. Its versatility, ease of installation and high quality make it an ideal choice for a variety of applications.