1SCA022857R5090 ABB 250 A 4-Pole Plug-In Right-Out Switch Fuse

Why Choose the ABB OS250B22PRN1P Switch Fuse?

The ABB OS250B22PRN1P, product ID 1SCA022857R5090, is a robust 250 A four-pole switch fuse designed for reliable switching, isolation and fuse protection in industrial and commercial low-voltage electrical systems. As part of the ABB OS Fuse Switches range, it combines dependable load switching with fuse-based overcurrent and short-circuit protection for demanding power distribution applications.

This special-connected switch fuse features a mechanism located between the poles and a plug-in/right-out connection arrangement. Its four-pole configuration incorporates an N1 neutral arrangement and is designed for British Standard B1–B3 fuse links, providing a practical solution for protected feeders, switchboards and industrial distribution systems requiring this specialised connection layout.

With a rated operational current of 250 A at up to 690 V AC, the OS250B22PRN1P provides AC-23A operational power ratings of 140 kW at 415 V, 170 kW at 500 V and 240 kW at 690 V. The plug-in/right-out version is supplied with a black operating handle, adjustable shaft and terminal bolt kits as standard, supporting straightforward integration into suitable electrical enclosures.

Key Advantages

• Heavy-duty 250 A switch fuse for industrial power distribution.
• Four-pole configuration with N1 neutral arrangement.
• Special plug-in/right-out connection arrangement.
• Mechanism positioned between the poles for the required panel configuration.
• Designed for British Standard B1–B3 fuse links.
• Black operating handle, adjustable shaft and terminal bolt kits supplied as standard.
• Combines load switching, electrical isolation and fuse protection within a single device.

Key Features

• ABB OS Fuse Switches series.
• 250 A rated operational current.
• Four-pole construction.
• N1 neutral configuration.
• British Standard B1–B3 fuse compatibility.
• Plug-in input / right output connection configuration.
• Operating mechanism located between the poles.
• Rated for operation at up to 690 V AC.
• 140 kW AC-23A rating at 415 V.
• 170 kW AC-23A rating at 500 V.
• 240 kW AC-23A rating at 690 V.
• Black handle with I-O and ON-OFF indication.
• Handle rated IP65 and padlockable in the OFF position.
• Adjustable operating shaft and terminal bolt kits included.

Reliable Switching and Fuse Protection

Switch fuses combine manual load switching and electrical isolation with the overcurrent and short-circuit protection provided by correctly selected fuse links. This enables downstream equipment and distribution circuits to be protected while providing a clearly defined means of isolation for operation, servicing and maintenance.

The ABB OS range is designed for industrial switchboards, distribution panels and machinery installations. The OS250B22PRN1P combines a 250 A four-pole configuration with an N1 neutral arrangement, mechanism between the poles and specialised plug-in/right-out connections, making it suitable for electrical assemblies requiring this specific connection configuration.

Typical Applications

• Industrial low-voltage distribution boards.
• Electrical switchboards and control panels.
• Four-pole feeder isolation and fuse protection.
• Three-phase and neutral distribution systems.
• Industrial machinery power supplies.
• Commercial and industrial power distribution systems.