1SDA073450R1 ABB E2.2B/MS 2000 4p F HR Switch-Disconnector

Why Choose the ABB E2.2B/MS 2000 4p F HR Switch-Disconnector?

The ABB E2.2B/MS 2000 4p F HR, order code 1SDA073450R1, is a high-current four-pole fixed air switch-disconnector from the ABB SACE Emax 2 range. Rated at 2000 A, it is designed for dependable switching and isolation in low-voltage power distribution systems where substantial continuous-current capacity and four-pole circuit separation are required.

The E2.2B/MS is a switch-disconnector rather than an automatic circuit breaker fitted with an electronic protection release. It provides a rated short-time withstand current of 42 kA for 1 s and 42 kA for 3 s, enabling the device to withstand prospective fault current while appropriately coordinated protective devices provide 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, 50/60 Hz frequency and an AC-23A utilisation category, the E2.2B/MS 2000 provides robust switching and isolation for industrial, commercial and infrastructure power distribution applications.

Key Advantages

• High-current 2000 A four-pole switch-disconnector for low-voltage power distribution.
• 42 kA short-time withstand current for 1 s for coordinated electrical systems.
• 42 kA short-time withstand current for 3 s supports time-selective protection arrangements.
• Four-pole construction enables switching and isolation across four conductors.
• Rated for operation at up to 690 V AC.
• 1000 V AC 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.
• Optional motor operation provides flexibility for electrically controlled installations.
• Part of the proven ABB SACE Emax 2 low-voltage switching platform.

Key Features

• ABB SACE Emax 2 E2.2B/MS switch-disconnector.
• 2000 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.
• 42 kA rated short-time withstand current for 1 s.
• 42 kA rated short-time withstand current for 3 s.
• AC-23A utilisation category.
• B short-time withstand performance level.
• Switch-disconnector construction for switching and isolation duties.
• No integrated electronic overcurrent protection release.
• Bolt-type main-circuit connection.
• Push-button operating element.
• Lockable construction.
• Optional motor drive.
• Optional voltage release.
• IP30 degree of protection at the front.
• Designed in accordance with IEC 60947-3.

High-Current Four-Pole Switching and Isolation

The ABB Emax 2 E2.2B/MS is designed for installations requiring reliable high-current switching and four-pole circuit isolation without integrated automatic overcurrent protection. Its combination of a 2000 A continuous current rating, 690 V AC operational capability and 42 kA short-time withstand current makes it suitable for coordinated power distribution systems where separate protective devices provide automatic fault protection.

The fixed four-pole construction and rear horizontal terminals make the 1SDA073450R1 particularly suitable for integration into high-current low-voltage switchboards. Its AC-23A switching capability, optional motor drive and voltage release, and Emax 2 architecture provide a flexible solution for 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.
• Utility and energy distribution systems.
• Switchboards using separate upstream or downstream overcurrent protection.