1SDA073534R1 ABB E2.2B/MS 2000 4p WMP Switch Disconnector

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

The ABB E2.2B/MS 2000 4p WMP, order code 1SDA073534R1, is a high-current four-pole withdrawable air switch disconnector from the ABB SACE Emax 2 range. Designed for dependable switching and electrical isolation in low-voltage power distribution systems, this E2.2 B-performance device provides a substantial 2000 A rated uninterrupted current for industrial, commercial and infrastructure switchboards.

The E2.2B/MS provides a rated short-time withstand current of 42 kA for 1 s and 42 kA for 3 s. This enables the switch disconnector to withstand substantial short-time fault currents when correctly applied within a coordinated electrical system, while separate protective equipment provides the required 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 690 V AC rated operational voltage, 1000 V AC rated insulation voltage and AC-23A utilisation category, the 1SDA073534R1 provides robust switching and isolation performance with the serviceability of a withdrawable Emax 2 installation.

Key Advantages

• 2000 A rated uninterrupted current for high-capacity low-voltage distribution systems.
• 42 kA short-time withstand current for 1 s for demanding switchboard applications.
• 42 kA short-time withstand current for 3 s provides verified extended withstand performance.
• Four-pole construction with 100% neutral rating for comprehensive switching and isolation.
• Withdrawable moving-part design supports inspection, servicing and equipment replacement.
• 690 V AC operational voltage and 1000 V AC insulation voltage.
• 2000 A AC-21 and AC-23 ratings at 400 V for demanding switching duties.
• Complies with IEC 60947-3 switch-disconnector isolation requirements.

Key Features

• ABB SACE Emax 2 E2.2B/MS air switch disconnector.
• 2000 A rated uninterrupted current (Iu).
• Four-pole configuration.
• Neutral pole current: 100% of Iu.
• 42 kA rated short-time withstand current (Icw) for 1 s.
• 42 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).
• 50/60 Hz operating frequency.
• AC-23A utilisation category.
• Withdrawable moving part (WMP) configuration.
• IP30 front-side protection.
• Optional motor drive and voltage release supported.

Reliable Withdrawable Isolation for High-Current Distribution

ABB SACE Emax 2 /MS switch disconnectors are designed to satisfy the isolation requirements of IEC 60947-3. Derived from the Emax 2 circuit-breaker platform, the /MS configuration provides switching and isolation without the automatic protection trip unit fitted to a circuit breaker. When open, the switch disconnector provides the isolating separation required for downstream equipment.

The withdrawable architecture allows the E2.2B/MS moving part to be separated from its corresponding fixed switchboard section, supporting inspection, maintenance and equipment servicing. Combined with its 2000 A continuous-current rating, four-pole configuration and 42 kA short-time withstand capability, the 1SDA073534R1 is well suited to distribution systems requiring dependable high-current isolation and a serviceable switchgear architecture.

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.