1SDA073426R1 ABB E6.2H/MS 5000 3p F HR Switch Disconnector

Why Choose the ABB E6.2H/MS 5000 3p F HR Switch Disconnector?

The ABB E6.2H/MS 5000 3p F HR, order code 1SDA073426R1, is a high-current SACE Emax 2 circuit-breaker switch disconnector designed for dependable switching and isolation in demanding low-voltage electrical distribution systems. Built on ABB's E6.2 platform, this fixed three-pole device provides a 5000 A rated uninterrupted current and is engineered for industrial, infrastructure and critical-power switchboards requiring robust high-current isolation.

The E6.2H/MS configuration is intended for switching and isolation rather than integral electronic overcurrent protection. It can make and carry substantial load currents while dedicated protective equipment elsewhere in the installation provides overload and short-circuit protection. Its H performance level provides a rated short-time withstand current of 100 kA, supporting use in electrical systems with very high prospective fault currents.

The 1SDA073426R1 is supplied in a fixed three-pole configuration with horizontal rear terminals (HR). Rated for operation at up to 690 V AC, with a 1000 V AC insulation voltage and 12 kV impulse withstand voltage, it combines high current-carrying capability with the robust mechanical construction of the ABB SACE Emax 2 range.

Key Advantages

• Very high 5000 A rated uninterrupted current for major low-voltage distribution systems.
• 100 kA short-time withstand current for 1 s for high fault-level electrical networks.
• 100 kA short-time withstand current for 3 s supports demanding power distribution applications.
• Three-pole configuration for high-current three-phase switching and isolation.
• Rated for operation at up to 690 V AC.
• Horizontal rear terminals provide an efficient connection arrangement for switchboard busbars.
• Fixed construction provides a robust solution for permanent switchboard installations.
• ABB SACE Emax 2 architecture offers high mechanical durability and extensive system integration options.

Key Features

• ABB SACE Emax 2 E6.2H/MS circuit-breaker switch disconnector.
• 5000 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.
• 100 kA rated short-time withstand current for 1 s.
• 100 kA rated short-time withstand current for 3 s.
• Electrical durability of 3000 cycles at operating voltages up to 440 V AC.
• Electrical durability of 2000 cycles at 500–690 V AC.
• Mechanical durability of 12000 cycles.
• Bolted main-circuit connection with M12 connection hardware.

High-Current Switching and Isolation for Power Distribution

Switch disconnectors provide a dependable means of making, carrying and isolating electrical circuits while dedicated protective equipment elsewhere in the installation provides overload and short-circuit protection. In high-capacity low-voltage switchboards, devices based on air circuit breaker platforms offer the robust operating mechanism and short-time current withstand capability required for main isolation, busbar switching and high-current feeder duties.

The ABB E6.2H/MS 5000 combines a 5000 A continuous-current rating with a 100 kA short-time withstand capability for both 1 s and 3 s. Its fixed three-pole construction and horizontal rear terminals make it particularly suitable for switchboards requiring high-capacity rear busbar connections, dependable circuit isolation and strong short-time current withstand performance.

Typical Applications

• Main switching and isolation in high-capacity low-voltage switchboards.
• Industrial power distribution systems.
• Transformer secondary switching and isolation.
• High-current feeder isolation.
• Busbar and bus-section switching applications.
• Manufacturing and process plant electrical systems.
• Data centres and critical-power distribution infrastructure.