1SDA073451R1 ABB E2.2N/MS 2000 4p F HR Switch Disconnector

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

The ABB E2.2N/MS 2000 4p F HR, order code 1SDA073451R1, is a SACE Emax 2 switch disconnector designed for dependable switching and isolation in high-current low-voltage electrical distribution systems. Built on ABB's E2.2 platform, this fixed four-pole device provides a 2000 A rated uninterrupted current and is suited to industrial, commercial and infrastructure switchboards requiring robust four-pole isolation.

The E2.2N/MS configuration is derived from the Emax 2 circuit breaker platform but operates as a switch disconnector without an integral electronic protection trip unit. It is designed to make, carry and isolate circuits while overload and short-circuit protection is provided separately within the electrical installation. Its four-pole construction provides simultaneous switching and isolation of four conductors in suitable three-phase four-wire systems.

Rated for operation at up to 690 V AC, with a 1000 V AC insulation voltage and 12 kV impulse withstand voltage, the E2.2N/MS 2000 provides a rated short-time withstand current of 66 kA for 1 s and 50 kA for 3 s. Its fixed construction and horizontal rear terminals (HR) support efficient integration with high-current switchboard busbars.

Key Advantages

• High 2000 A rated uninterrupted current for demanding low-voltage distribution systems.
• Four-pole configuration for switching and isolation in suitable three-phase four-wire networks.
• 66 kA short-time withstand current for 1 s for high fault-level installations.
• 50 kA short-time withstand current for 3 s supports demanding coordination requirements.
• Rated for operation at up to 690 V AC.
• Horizontal rear terminals support efficient high-current busbar connections.
• Fixed installation provides a robust and straightforward switchboard configuration.
• Based on ABB's modular SACE Emax 2 platform with extensive accessory compatibility.

Key Features

• ABB SACE Emax 2 E2.2N/MS switch disconnector.
• 2000 A rated uninterrupted current.
• Four-pole configuration with 100% neutral-pole current capability.
• Fixed installation.
• Horizontal rear terminals (HR).
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 66 kA rated short-time withstand current for 1 s.
• 50 kA rated short-time withstand current for 3 s.
• 2000 A AC-21 switching current at 400 V AC.
• 2000 A AC-23 switching current at 400 V AC.
• Electrical durability of 10000 cycles at ≤440 V AC.
• Electrical durability of 8000 cycles at 500–690 V AC.
• Mechanical durability of 25000 cycles.

Four-Pole High-Current Switching and Isolation

Switch disconnectors provide a dependable means of making, carrying and isolating electrical circuits while dedicated protective devices elsewhere in the installation provide overload and short-circuit protection. Four-pole devices are particularly useful in suitable three-phase four-wire distribution systems where simultaneous switching and isolation of all four conductors is required.

The ABB E2.2N/MS 2000 combines a 2000 A continuous-current rating with a 66 kA short-time withstand capability for 1 s. Its fixed four-pole construction, 100% neutral-pole current capability and horizontal rear terminals make it well suited to main switchboards and high-current distribution systems requiring dependable isolation and efficient busbar integration.

Typical Applications

• Main switchboard switching and isolation.
• Three-phase four-wire low-voltage distribution systems.
• Industrial power distribution switchboards.
• High-current feeder switching and isolation.
• Transformer secondary distribution systems.
• Busbar and bus-section isolation.
• Commercial buildings and critical infrastructure.
• Manufacturing and process plant electrical systems.