OT1000EM04P ABB 1000 A 4-Pole Earthing Switch

Why Choose the ABB OT1000EM04P Earthing Switch?

The ABB OT1000EM04P is a heavy-duty 1000 A four-pole earthing switch designed for reliable isolation and earthing duties in industrial electrical distribution systems. As part of the ABB OT switch range, it provides a robust manually operated solution for applications where circuits or equipment must be securely connected to earth during maintenance and servicing.

This front-operated, bottom-mounted earthing switch combines high short-circuit withstand performance with a space-efficient mechanical design. Its operating mechanism is turned through 90 degrees to reduce installation space, while the supplied handle and shaft provide straightforward manual operation within switchboards and electrical distribution assemblies.

With a rated current of 1000 A, four-pole configuration, 50 kA short-time withstand current for 1 s and 92 kA peak short-circuit making capacity, the OT1000EM04P is engineered for demanding high-current installations. A terminal bolt kit, black plastic OFF/earth handle and operating shaft are supplied as standard.

Key Advantages

• Heavy-duty 1000 A earthing switch for industrial electrical systems.
• Four-pole configuration for multi-pole earthing applications.
• 50 kA short-time withstand current for 1 s.
• 92 kA peak short-circuit making capacity.
• Front-operated, bottom-mounted construction for switchboard installation.
• Space-saving mechanism turned through 90 degrees.
• Supplied with terminal bolt kit, operating shaft and black plastic handle.
• Handle can be padlocked in the OFF and earth positions for secure operation.

Key Features

• ABB OT series earthing switch.
• 1000 A rated current.
• 4-pole configuration.
• 50 kA Icw for 1 s.
• 50 kA Icw for 0.25 s.
• 92 kA Icm peak short-circuit making capacity.
• Front-operated and bottom-mounted design.
• Black OFF/earth plastic handle and shaft supplied as standard.
• Padlockable handle for secure isolation and earthing procedures.
• Terminal bolt kit included.

Reliable Earthing for High-Current Electrical Systems

Earthing switches provide a deliberate conductive connection between isolated electrical circuits and earth, helping establish a safe condition for maintenance and servicing. In high-current switchboards and distribution systems, robust mechanical switching and adequate short-circuit withstand capability are essential for dependable operation.

The ABB OT1000EM04P is designed specifically for this role, combining a 1000 A current rating with four-pole switching and substantial short-circuit withstand performance. Its padlockable operating handle also supports controlled isolation procedures by allowing the switch position to be mechanically secured.

Typical Applications

• Industrial low-voltage switchboards.
• Electrical distribution panels and assemblies.
• High-current power distribution systems.
• Industrial isolation and earthing arrangements.
• Maintenance earthing of isolated electrical circuits.
• Manufacturing and process plant electrical systems.