OT1000EP03P ABB 1000 A 3-Pole Earthing Switch

Why Choose the ABB 1SCA118451R1001 OT1000EP03P Earthing Switch?

The ABB 1SCA118451R1001, order code OT1000EP03P, is a heavy-duty 1000 A, 3-pole earthing switch designed for reliable earthing and isolation functions in high-current industrial electrical systems. As part of the ABB 311027-OT Switches product group, it belongs to ABB's high-performance OT range and is specifically configured as a front-operated, base-mounted earthing switch.

The OT1000EP03P provides a substantial 50 kA rated short-time withstand current (Icw) for 1 s and a 110 kA peak short-circuit making capacity (Icm). These characteristics make it suitable for demanding switchboard and power-distribution applications where the earthing device must withstand significant prospective fault currents.

With a conventional free-air thermal current of 1000 A and a maximum rated operational voltage of 1000 V AC, the OT1000EP03P is engineered for substantial industrial installations. The switch is supplied with a terminal bolt kit, black OFF–earth plastic operating handle and shaft, while the handle can be padlocked in both the OFF and earth positions to support controlled operating and maintenance procedures.

Key Advantages

• Heavy-duty 1000 A earthing switch for high-current industrial systems.
• 3-pole configuration for coordinated three-phase earthing applications.
• 50 kA short-time withstand current for 1 s.
• 110 kA peak short-circuit making capacity.
• Supplied with operating handle, shaft and terminal bolt kit.
• Handle can be padlocked in both the OFF and earth positions for secure operation.

Key Features

• ABB OT1000 earthing switch.
• 1000 A rated current.
• 3-pole switching configuration.
• 50 kA Icw for 1 s.
• 50 kA Icw for 0.25 s.
• 110 kA peak Icm.
• 1000 V maximum rated operational voltage.
• 560 kW AC-23A operational power at 400–415 V.
• Front-operated, base-mounted construction.
• Black OFF–earth plastic operating handle included.
• Operating shaft and terminal bolt kit included.
• Handle padlockable in OFF and earth positions.
• Designed for high-current industrial earthing and isolation applications.

Reliable High-Current Earthing for Industrial Power Systems

Earthing switches provide a deliberate conductive connection between isolated electrical conductors and earth, helping establish a controlled earthed condition during appropriate maintenance and operational procedures. The ABB OT1000EP03P is engineered for this specialised function in high-current three-phase installations and combines a robust operating mechanism with substantial short-circuit withstand capability.

The OT1000EP03P's 50 kA Icw for 1 s and 110 kA peak Icm provide the electrical withstand and making performance required for demanding earthing applications. Its front-operated design, supplied handle and shaft, and ability to padlock the mechanism in both OFF and earth positions make it well suited to integration into industrial switchboards and power-distribution assemblies.

Typical Applications

• High-current industrial earthing systems.
• Industrial switchboards and distribution assemblies.
• Three-phase power distribution installations.
• Electrical isolation and maintenance arrangements.
• Industrial process and manufacturing facilities.
• Power generation and infrastructure systems.
• High-current feeder and distribution equipment.