1SDA073473R1 ABB E6.2H/f/MS 6300 4p FHR Switch Disconnector

Why Choose the ABB E6.2H/f/MS 6300 4p FHR Switch Disconnector?

The ABB E6.2H/f/MS 6300 4p FHR, order code 1SDA073473R1, is a high-current four-pole air switch disconnector from the ABB SACE Emax 2 range, designed for dependable switching and isolation in demanding low-voltage power distribution systems. Built on the E6.2 frame, this /MS configuration provides a substantial 6300 A rated uninterrupted current for major industrial, commercial and infrastructure electrical installations.

The E6.2H/f/MS combines its high continuous-current capacity with a rated short-time withstand current of 100 kA for 1 s. This makes the device particularly suitable for high-power switchboards where the isolating device must withstand severe prospective fault-current conditions while appropriately coordinated protective equipment provides automatic circuit protection.

This model is supplied as a fixed four-pole unit with full-size neutral and rear horizontal terminals (FHR). With a rated operational voltage of 690 V AC, the E6.2H/f/MS 6300 provides a robust solution for main switching and isolation duties in high-capacity low-voltage distribution assemblies.

Key Advantages

• Very high 6300 A rated uninterrupted current for major power distribution systems.
• 100 kA short-time withstand current for 1 s for demanding high-fault-level installations.
• Four-pole construction with full-size neutral for comprehensive circuit isolation.
• 690 V AC rated operational voltage suitable for industrial low-voltage networks.
• Fixed E6.2 frame designed for permanent high-current switchboard installations.
• Rear horizontal terminals support efficient integration with switchboard busbar systems.
• Part of the proven ABB SACE Emax 2 platform for advanced low-voltage power distribution.

Key Features

• ABB SACE Emax 2 E6.2H/f/MS switch disconnector.
• 6300 A rated uninterrupted current (Iu).
• Four-pole configuration.
• Full-size neutral pole.
• 100 kA rated short-time withstand current (Icw) for 1 s.
• 690 V AC rated operational voltage (Ue).
• 6300 A AC-21 rated operational current at 400 V.
• 6300 A AC-23 rated operational current at 400 V.
• Fixed installation configuration.
• Rear horizontal terminals (FHR).
• Heavy-duty E6.2 frame engineered for high-current low-voltage distribution.

Reliable High-Current Isolation for Critical Power Systems

ABB Emax 2 /MS switch disconnectors are engineered for controlled switching and electrical isolation in low-voltage distribution systems. Rather than providing automatic overcurrent protection, the switch-disconnector performs the switching and isolation function while suitably coordinated protective devices within the installation provide the required overload and short-circuit protection.

With its exceptional 6300 A continuous-current capacity and 100 kA 1-second short-time withstand rating, the E6.2H/f/MS is designed for some of the most demanding low-voltage distribution applications. Its four-pole full-size-neutral arrangement, fixed construction and rear horizontal connections make it particularly suitable for major switchboards where high current capacity, robust fault withstand and dependable isolation are essential.

Typical Applications

• Main low-voltage distribution switchboards.
• Large industrial power distribution systems.
• High-current incoming and outgoing isolation duties.
• Transformer secondary distribution systems.
• Generator and standby power installations.
• Data centres and critical infrastructure power systems.
• Manufacturing and process plant switchgear.
• High-fault-level electrical distribution assemblies.