OT1250E22 ABB 1250 A 4-Pole Modular Switch Disconnector

Why Choose the ABB OT1250E22 Switch Disconnector?

The ABB OT1250E22 is a heavy-duty 1250 A four-pole switch disconnector designed for dependable switching and electrical isolation in high-current industrial power distribution systems. As part of the ABB OT switch-disconnector series, it provides robust manual isolation for main and sub-distribution switchboards, industrial panels and other demanding low-voltage installations.

This model features a mechanism-mounted modular configuration with four poles, front operation and base mounting. Its robust construction and bolted main-circuit connections make it suitable for integration into high-current switchgear assemblies where reliable isolation and long-term mechanical performance are required.

With a rated continuous current of 1250 A, a maximum rated operational voltage of 1000 V AC, 710 kW AC-23 switching capability at 400 V and a rated short-time withstand current of 50 kA, the OT1250E22 is engineered for demanding industrial distribution duties. The switch is supplied without the operating handle and shaft, allowing suitable operating accessories to be selected separately for the installation.

Key Advantages

• Heavy-duty 1250 A switch disconnector for industrial power distribution.
• Four-pole configuration for simultaneous multi-pole isolation.
• Mechanism-mounted modular construction for demanding switchgear applications.
• 1000 V AC maximum rated operational voltage.
• 50 kA rated short-time withstand current.
• 710 kW switching capability at 400 V.
• Front-operated and base-mounted design for switchboard integration.
• Handle and shaft are not included, enabling operating accessories to be selected for the installation.

Key Features

• ABB OT series switch disconnector.
• 1250 A rated continuous current.
• 4-pole configuration.
• Mechanism-mounted modular design.
• 1250 A AC-21 operational current at 400 V.
• 1250 A AC-23 operational current at 400 V.
• 710 kW AC-23 operational power at 400 V.
• 50 kA rated short-time withstand current (Icw).
• Front-operated, base-mounted construction.
• Bolted main-circuit connections.
• Terminal bolt kit included.
• Operating handle and shaft not included.

Reliable High-Current Switching and Isolation

Switch disconnectors provide manual switching together with dependable electrical isolation, allowing circuits and equipment to be disconnected from their power source during maintenance, servicing and operational procedures. High-current industrial installations require robust switching devices capable of carrying substantial continuous loads while providing a dependable isolation function.

The ABB OT1250E22 combines a 1250 A current rating with four-pole switching and substantial short-circuit withstand performance. Its mechanism-mounted modular construction, front operation and base mounting make it suitable for integration into industrial switchboards where reliable high-current switching and flexible system design are required.

Typical Applications

• Industrial low-voltage switchboards.
• Main and sub-distribution boards.
• High-current electrical distribution systems.
• Main and local electrical isolation.
• Three-phase systems requiring four-pole switching.
• Manufacturing and process plant switchgear.
• Power distribution panels and industrial control assemblies.