1SDA059028R1 ABB E3H/E MS 2500 4P 1150V AC F HR Switch Disconnector

Why Choose the ABB E3H/E MS 2500 4P 1150V AC F HR Switch Disconnector?

The ABB E3H/E MS 2500 4P 1150V AC F HR, order code 1SDA059028R1, is a specialised SACE Emax air switch disconnector engineered for high-current switching and isolation in elevated-voltage AC distribution systems. Built on the ABB E3 platform, this four-pole device provides a rated uninterrupted current of 2500 A and is specifically designed for operation at up to 1150 V AC.

This E3H/E MS configuration combines a fixed installation with rear horizontal terminals, providing a robust arrangement for integration into high-capacity switchboards and busbar systems. Its rated short-time withstand current of 30 kA for 1 s supports demanding distribution duties where dependable isolation at voltages above conventional 690 V AC systems is required.

With a rated insulation voltage of 1250 V and rated impulse withstand voltage of 12 kV, the E3H/E MS 2500 is purpose-designed for elevated-voltage AC applications. As a SACE Emax switch disconnector, it performs circuit switching and isolation without integral overcurrent protection, allowing protection to be coordinated separately within the electrical installation.

Key Advantages

• High-capacity 2500 A rated uninterrupted current.
• Specialised for elevated-voltage operation at up to 1150 V AC.
• Four-pole construction for simultaneous switching and isolation across four poles.
• Fixed installation provides a robust permanent switchboard solution.
• Rear horizontal terminals facilitate integration with engineered high-current busbar systems.
• 30 kA short-time withstand current for 1 s supports demanding distribution applications.

Key Features

• ABB SACE Emax E3H/E MS series.
• 2500 A rated uninterrupted current.
• 1150 V AC rated operational voltage.
• Four-pole (4P) construction.
• Fixed (F) installation version.
• Rear horizontal (HR) terminal arrangement.
• 1250 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 30 kA rated short-time withstand current.
• IP30 front-side degree of protection.

Reliable 1150 V AC Switching and Isolation

The ABB E3H/E MS 2500 belongs to the specialised SACE Emax range developed for AC installations with rated service voltages up to 1150 V. Its combination of a 1250 V insulation rating, four-pole construction and 2500 A continuous-current capability makes it particularly suitable for industrial systems where standard 690 V switch-disconnector equipment does not provide the required operating-voltage capability.

The fixed E3 construction and rear horizontal connection arrangement provide a robust interface for high-current busbar systems, while its 30 kA one-second short-time withstand rating supports reliable coordination within engineered distribution assemblies. Optional motor operation and voltage-release accessories also allow the switch disconnector to be incorporated into more sophisticated control and isolation schemes.

Typical Applications

• Industrial AC distribution systems operating up to 1150 V AC.
• High-current main incoming isolation.
• Four-pole feeder and distribution isolation.
• High-capacity fixed switchboard assemblies.
• Heavy industrial plants and manufacturing facilities.
• Specialised electrical installations requiring switching above conventional 690 V AC distribution levels.