1SDA073533R1 ABB E2.2H/MS 1600 4p WMP Switch Disconnector

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

The ABB E2.2H/MS 1600 4p WMP, order code 1SDA073533R1, is a high-performance four-pole withdrawable air switch disconnector from the ABB SACE Emax 2 range. Designed for dependable switching and electrical isolation in demanding low-voltage distribution systems, this E2.2 H-performance device provides a 1600 A rated uninterrupted current for industrial, commercial and infrastructure switchboards.

The E2.2H/MS combines its continuous-current capacity with a rated short-time withstand current of 85 kA for 1 s and 66 kA for 3 s. This high withstand performance makes it suitable for installations with significant prospective fault currents, while appropriately coordinated protective equipment elsewhere in the electrical system provides automatic overload and short-circuit protection.

This model is supplied as the withdrawable moving part (WMP) in a four-pole configuration with the neutral pole rated at 100% of Iu. With a rated operational voltage of 690 V AC, rated insulation voltage of 1000 V AC and robust Emax 2 construction, the 1SDA073533R1 provides a serviceable high-current isolation solution for modern low-voltage switchboards.

Key Advantages

• 1600 A rated uninterrupted current for high-capacity low-voltage distribution systems.
• 85 kA short-time withstand current for 1 s for demanding high-fault-level installations.
• 66 kA short-time withstand current for 3 s provides strong extended withstand performance.
• Four-pole construction with 100% neutral rating for comprehensive switching and isolation.
• Withdrawable moving-part design supports inspection, maintenance and equipment servicing.
• 690 V AC rated operational voltage for industrial low-voltage networks.
• 1600 A AC-21 and AC-23 ratings at 400 V for demanding switching duties.
• Part of the proven ABB SACE Emax 2 platform for critical power distribution.

Key Features

• ABB SACE Emax 2 E2.2H/MS air switch disconnector.
• 1600 A rated uninterrupted current (Iu).
• Four-pole configuration.
• Neutral pole current: 100% of Iu.
• 85 kA rated short-time withstand current (Icw) for 1 s.
• 66 kA rated short-time withstand current (Icw) for 3 s.
• 690 V AC rated operational voltage (Ue).
• 1000 V AC rated insulation voltage (Ui).
• 12 kV rated impulse withstand voltage (Uimp).
• 1600 A rated permanent current at AC-21, 400 V.
• 1600 A rated permanent current at AC-23, 400 V.
• Withdrawable moving part (WMP) configuration.
• IP30 front-side protection.

Reliable Withdrawable Isolation for High-Current Distribution

ABB SACE Emax 2 /MS switch disconnectors are designed for controlled switching and electrical isolation in low-voltage power distribution systems. Unlike an automatic circuit breaker fitted with a protection trip unit, the /MS configuration performs the switching and isolation function while appropriately coordinated protective devices elsewhere in the installation provide the required automatic overload and short-circuit protection.

The withdrawable architecture allows the E2.2H/MS moving part to be separated from its corresponding fixed switchboard section, supporting inspection, servicing and replacement. Combined with its 1600 A current rating, four-pole configuration and substantial 85 kA 1-second short-time withstand capability, the 1SDA073533R1 is well suited to demanding distribution systems where dependable isolation and serviceable switchgear are essential.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Commercial and infrastructure electrical distribution.
• High-current incoming and outgoing isolation duties.
• Transformer secondary distribution systems.
• Generator and standby power installations.
• Manufacturing and process plant switchgear.
• Withdrawable switchboard assemblies requiring serviceable four-pole isolation.