1SCA022854R7210 ABB 250 A 4-Pole Left-In Right-Out Switch Fuse

Why Choose the ABB OS250B22LRP Switch Fuse?

The ABB OS250B22LRP is a robust 250 A 4-pole switch fuse designed for reliable switching, isolation and fuse protection in industrial low-voltage electrical systems. Identified by ABB order code 1SCA022854R7210, this model belongs to the ABB OS switch fuse range and uses the British Standard fuse system.

This specific OS250B22LRP configuration features a 22 operating mechanism positioned between the poles together with a left-in, right-out (LR) connection arrangement. Its specialised terminal orientation supports switchboard layouts requiring incoming connections from the left and outgoing connections to the right.

With a rated operational current of 250 A, four fused poles and compatibility with B1–B3 fuse sizes, the OS250B22LRP provides dependable multi-pole fused isolation. The unit is supplied with an OXP6X210 adjustable shaft, OHB65J6 black ON-OFF handle and M8 × 16 mm terminal bolts, supporting straightforward integration into industrial switchgear.

Key Advantages

• 250 A rated operational current for industrial power distribution.
• 4-pole configuration with a switched fusible fourth pole.
• Combines switching, isolation and fuse protection in one assembly.
• Left-in, right-out (LR) connection arrangement for specialised switchboard layouts.
• 22 operating mechanism positioned between the poles.
• Supplied with the operating handle, shaft and terminal bolts.

Key Features

• ABB OS250 switch fuse.
• 250 A rated operational current.
• 4 fused poles.
• BS fuse system.
• Compatible with B1–B3 fuse sizes.
• Left-in, right-out connection.
• Mechanism 22 between the poles.
• Front-operated and base-mounted construction.
• OHB65J6 black ON-OFF pistol handle included.
• Handle is IP65 protected and padlockable in the OFF position.

Special-Connected Four-Pole Fused Isolation

Switch fuses combine manual switching and circuit isolation with fuse-based protection against overcurrent and short-circuit conditions. The four-pole OS250B22LRP extends these functions across four fused conductors, providing a coordinated isolation solution for industrial distribution and switchgear applications.

The ABB OS250B22LRP is specifically configured with left-side incoming and right-side outgoing connections. Together with its mechanism-between-poles construction, adjustable shaft and enclosure-mounted operating handle, this arrangement provides a practical solution for switchboard designs requiring defined conductor routing and dependable 250 A fused isolation.

Typical Applications

• Industrial low-voltage distribution boards.
• Four-pole fused isolation circuits.
• Switchgear and switchboard assemblies.
• Industrial machinery power isolation.
• Fused feeder and distribution circuits.
• OEM and process-industry power systems.