OT1250E03 ABB 1250 A 3-Pole Switch-Disconnector

Why Choose the ABB 1SCA022860R5510 OT1250E03 Switch-Disconnector?

The ABB 1SCA022860R5510, order code OT1250E03, is a heavy-duty 1250 A, 3-pole switch-disconnector designed for reliable high-current switching and electrical isolation. As part of the ABB 311027-OT Switches product group, it belongs to ABB's OT range of manually operated switch-disconnectors for industrial power distribution and switchboard applications.

The OT1250E03 is a front-operated, base-mounted 3-pole switch-disconnector. This specific version is supplied without an operating handle or shaft, allowing the appropriate ABB handle and shaft arrangement to be selected separately to suit the enclosure and installation depth. A terminal bolt kit is included with the switch.

With a conventional free-air thermal current of 1250 A and rated operational currents of 1250 A for both AC-22A and AC-23A duties, the OT1250E03 is engineered for demanding industrial loads. It also provides a 50 kA short-time withstand current for 1 s, a rated operational voltage of up to 1000 V and substantial AC-23A switching performance for high-power applications.

Key Advantages

• Heavy-duty 1250 A switch-disconnector for high-current industrial installations.
• 3-pole configuration for three-phase switching and isolation.
• 1250 A AC-22A / AC-23A switching capability.
• 50 kA short-time withstand current for 1 s.
• Supplied without handle and shaft, allowing the operating arrangement to be selected for the installation.
• Terminal bolt kit included for convenient electrical installation.

Key Features

• ABB OT1250 switch-disconnector series.
• 1250 A rated current.
• 3-pole switching configuration.
• 1250 A AC-22A rated operational current.
• 1250 A AC-23A rated operational current.
• 710 kW AC-23A operational power at 400–415 V.
• 900 kW AC-23A operational power at 500 V.
• 1200 kW AC-23A operational power at 690 V.
• 1000 V rated operational voltage.
• 12 kV rated impulse withstand voltage.
• 50 kA Icw for 1 s.
• Front-operated configuration.
• Base-mounted construction.
• Operating mechanism positioned at the end of the switch.
• Handle and shaft are not included and must be ordered separately.
• Terminal bolt kit included.

Reliable 1250 A Isolation for Industrial Power Systems

Switch-disconnectors provide a dedicated means of manually switching and safely isolating electrical circuits from their power source. The ABB OT1250E03 combines a substantial 1250 A current capacity with three-pole switching, making it suitable for high-current three-phase distribution systems, machinery supplies and industrial switchboards.

This OT1250E03 version is supplied without a handle and shaft, giving panel builders and system designers flexibility to select the appropriate ABB operating accessories for the enclosure depth and installation arrangement. Its 50 kA Icw for 1 s, high AC-23A switching capability and 1000 V operational rating make it a robust solution for demanding industrial isolation duties.

Typical Applications

• High-current industrial power distribution.
• Main and sub-main electrical isolation.
• Industrial switchboards and distribution assemblies.
• Large machinery and production equipment.
• High-power motor and load isolation.
• Manufacturing and process installations.
• Power generation and infrastructure systems.