OT1250E03W8P ABB 1250 A 3-Pole Switch Disconnector 185 mm Phase Distance

Why Choose the ABB OT1250E03W8P Switch Disconnector?

The ABB OT1250E03W8P is a heavy-duty 1250 A three-pole switch disconnector designed for reliable switching and isolation in high-current industrial electrical distribution systems. As part of the ABB OT switch-disconnector series, it combines high electrical performance with a wide-phase construction suited to demanding switchboard and power distribution applications.

This switch disconnector is front operated and base mounted, with an extended 185 mm phase distance that provides increased spacing between phases. The OT1250E03W8P is supplied with a black ON-OFF plastic handle and operating shaft, while the handle provides IP65 protection and can be padlocked in the OFF position for secure isolation.

With an open-air thermal current of 1250 A and rated operational currents of 1250 A AC-22A and 1250 A AC-23A at 400–415 V, the OT1250E03W8P is engineered for substantial industrial loads. Its rated short-time withstand current of 50 kA for 1 s, together with a rated short-circuit making capacity of 110 kA at 690 V, supports dependable operation in high-power installations.

Key Advantages

• Heavy-duty 1250 A switch disconnector for high-current industrial applications.
• Three-pole configuration for three-phase switching and isolation.
• Wide 185 mm phase distance for increased spacing between phases.
• 1250 A AC-22A / AC-23A rating at 400–415 V.
• 50 kA short-time withstand current for 1 s.
• Front-operated, base-mounted construction for switchboard installation.
• Black IP65 ON-OFF handle and operating shaft supplied as standard.
• Handle is padlockable in the OFF position for secure isolation.

Key Features

• ABB OT series switch disconnector.
• 1250 A rated current.
• 3-pole configuration.
• 185 mm wide phase distance.
• 1000 V AC maximum rated operational voltage.
• 1250 A AC-23A operational current at 400–415 V.
• 710 kW AC-23A operational power at 400–415 V.
• 50 kA rated short-time withstand current for 1 s.
• Front-operated and base-mounted design.
• IP65 black handle, shaft and terminal bolt kit included.

Reliable High-Current Switching and Isolation

Switch disconnectors provide manual load switching together with dependable electrical isolation, allowing downstream circuits and equipment to be disconnected from their supply during maintenance, servicing and operational procedures. Robust construction and adequate short-circuit withstand performance are particularly important in high-current industrial distribution systems.

The ABB OT1250E03W8P combines a 1250 A rating with an unusually wide 185 mm phase distance, making it suitable for installations requiring increased spacing between phase connections. Its adjustable operating arrangement, IP65 handle and padlocking capability also support practical integration into industrial switchboards.

Typical Applications

• Industrial low-voltage switchboards.
• High-current electrical distribution systems.
• Main and local electrical isolation.
• Installations requiring increased phase spacing.
• Manufacturing and process plant switchgear.
• Power distribution panels and industrial control assemblies.