1SDA073414R1 ABB E2.2N/MS 2500 3p F HR Switch Disconnector

Why Choose the ABB E2.2N/MS 2500 3p F HR Switch Disconnector?

The ABB E2.2N/MS 2500 3p F HR, order code 1SDA073414R1, is a high-current SACE Emax 2 switch disconnector designed for dependable switching and isolation in low-voltage electrical distribution systems. Built on ABB's E2.2 platform, this fixed three-pole device provides a 2500 A rated uninterrupted current and is suited to industrial, commercial and infrastructure switchboards where robust high-current isolation is required.

The E2.2N/MS configuration is a circuit-breaker-derived switch disconnector intended for switching and isolation rather than integral overcurrent protection. Its fixed construction with horizontal rear terminals (HR) supports direct integration with switchboard busbar arrangements, making it particularly suitable for main switching, feeder isolation and bus-section applications.

Rated for operation at up to 690 V AC, with a 1000 V AC insulation voltage, 12 kV impulse withstand voltage and rated short-time withstand current of 66 kA for 1 s and 50 kA for 3 s, the E2.2N/MS 2500 provides robust electrical performance for demanding low-voltage distribution installations.

Key Advantages

• High 2500 A rated uninterrupted current for demanding low-voltage distribution systems.
• Three-pole switch disconnector for three-phase switching and isolation duties.
• 66 kA short-time withstand current for 1 s supports operation in high fault-level networks.
• 50 kA short-time withstand current for 3 s provides strong short-time current withstand capability.
• Rated for operation at up to 690 V AC.
• Horizontal rear terminals support efficient connection to switchboard busbars.
• Fixed installation provides a robust and straightforward switchboard configuration.
• Based on ABB's modular SACE Emax 2 platform for integration into demanding power distribution systems.

Key Features

• ABB SACE Emax 2 E2.2N/MS switch disconnector.
• 2500 A rated uninterrupted current.
• Three-pole configuration.
• 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.
• 2500 A AC-21 switching current at 400 V AC.
• 2500 A AC-23 switching current at 400 V AC.
• Electrical durability of 8000 cycles at ≤440 V AC.
• Electrical durability of 7000 cycles at 500–690 V AC.
• Mechanical durability of 20000 cycles.

High-Current Switching and Isolation for Power Distribution

Switch disconnectors provide a dependable means of making, carrying and isolating electrical circuits while overcurrent and short-circuit protection is provided elsewhere in the installation. In high-capacity low-voltage switchboards, air-circuit-breaker-derived switch disconnectors provide the mechanical robustness and current-carrying capability required for main isolation, feeder switching and busbar applications.

The ABB E2.2N/MS 2500 combines a 2500 A continuous-current rating with a 66 kA short-time withstand capability for 1 s. Its fixed three-pole construction and horizontal rear terminals make it well suited to switchboards requiring direct rear busbar connections, while its Emax 2 architecture provides dependable operation across demanding industrial and infrastructure installations.

Typical Applications

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