1SDA073449R1 ABB E2.2H/MS 1600 4p F HR Switch-Disconnector

Why Choose the ABB E2.2H/MS 1600 4p F HR Switch-Disconnector?

The ABB E2.2H/MS 1600 4p F HR, order code 1SDA073449R1, is a high-performance four-pole fixed air switch-disconnector from the ABB SACE Emax 2 range. Rated at 1600 A, it is designed for reliable switching and isolation in demanding low-voltage power distribution systems where four-pole disconnection and strong short-time withstand performance are required.

The E2.2H/MS is a switch-disconnector rather than an automatic circuit breaker equipped with an electronic protection release. Its H-performance construction provides a rated short-time withstand current of 85 kA for 1 s and 66 kA for 3 s, allowing the device to withstand substantial prospective fault currents while appropriately coordinated protective equipment provides automatic overload and short-circuit protection.

This version combines a fixed four-pole configuration with rear horizontal (HR) terminals for integration into high-current switchboards. With a rated operational voltage of 690 V AC, rated insulation voltage of 1000 V AC and 50/60 Hz operating frequency, the E2.2H/MS 1600 provides dependable isolation for industrial, commercial, infrastructure and critical power distribution applications.

Key Advantages

• High-performance 1600 A four-pole switch-disconnector for demanding low-voltage distribution systems.
• 85 kA short-time withstand current for 1 s supports installations with high prospective fault levels.
• 66 kA short-time withstand current for 3 s provides additional withstand capability for coordinated systems.
• Four-pole construction enables switching and isolation across four conductors.
• Rated for operation at up to 690 V AC.
• 1000 V AC rated insulation voltage supports robust electrical isolation.
• AC-23A utilisation category for demanding switching duties.
• Provides switching and isolation without an integrated electronic overcurrent trip unit.
• Fixed installation with rear horizontal terminals provides a robust high-current switchboard arrangement.
• Part of the proven ABB SACE Emax 2 low-voltage switching platform.

Key Features

• ABB SACE Emax 2 E2.2H/MS switch-disconnector.
• 1600 A rated uninterrupted current.
• Four-pole (4P) configuration.
• Fixed (F) installation.
• Rear horizontal (HR) main terminals.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 50/60 Hz rated frequency.
• 85 kA rated short-time withstand current for 1 s.
• 66 kA rated short-time withstand current for 3 s.
• AC-23A utilisation category.
• H short-time withstand performance level.
• Switch-disconnector construction for switching and isolation duties.
• No integrated electronic overcurrent protection release.
• Designed to provide an isolating distance between the main contacts when open.
• Based on the ABB Emax 2 architecture with compatible Emax 2 accessory options.
• Designed in accordance with IEC 60947-3.

High-Performance Four-Pole Switching and Isolation

The ABB Emax 2 E2.2H/MS is designed for electrical installations requiring dependable high-current switching and four-pole circuit isolation without integrated automatic overcurrent protection. Its combination of a 1600 A continuous current rating, 690 V AC operational voltage and short-time withstand ratings of 85 kA for 1 s and 66 kA for 3 s makes it well suited to coordinated power distribution systems with substantial prospective fault currents.

The fixed four-pole construction and rear horizontal terminals make the 1SDA073449R1 particularly suitable for integration into high-current low-voltage switchboards. Its AC-23A utilisation category, robust E2.2 frame and Emax 2 accessory architecture provide a versatile solution for switching and isolation across industrial facilities, infrastructure and critical electrical distribution systems.

Typical Applications

• Main and secondary isolation in low-voltage switchboards.
• Four-pole power distribution systems requiring neutral switching and isolation.
• Industrial power distribution installations.
• Bus-section and bus-coupler switching applications.
• Transformer secondary distribution systems.
• Manufacturing plants and process facilities.
• Data centres and critical power infrastructure.
• Large commercial and infrastructure electrical installations.
• Switchboards using separate upstream or downstream overcurrent protection.
• High-fault-level systems requiring 85 kA one-second short-time withstand capability.