1SDA073429R1 ABB E6.2X/MS 6300 3p FHR Switch-Disconnector

Why Choose the ABB E6.2X/MS 6300 3p FHR Switch-Disconnector?

The ABB E6.2X/MS 6300 3p FHR, order code 1SDA073429R1, is a high-performance SACE Emax 2 fixed air switch-disconnector designed for switching and isolation in very high-current low-voltage electrical distribution systems. Part of the ABB Emax 2 E6.2 range, this three-pole X-performance device provides a 6300 A rated uninterrupted current for demanding industrial, infrastructure and power-distribution installations.

As an E6.2X/MS switch-disconnector, this device is intended for switching and isolation rather than the electronic overcurrent protection provided by Ekip-equipped Emax 2 circuit breakers. The /MS configuration is therefore particularly suitable where system protection is provided by coordinated protective devices elsewhere in the installation and a robust high-current main switching and isolation point is required.

The E6.2X/MS 6300 uses fixed construction with adjustable rear horizontal terminals and supports rated operational voltages up to 690 V AC. Its X-performance design provides a rated short-time withstand current of 120 kA for 1 s, delivering exceptional withstand capability for switchgear exposed to very high prospective fault currents.

Key Advantages

• Very high 6300 A rated uninterrupted current for major low-voltage distribution systems.
• E6.2X/MS switch-disconnector configuration for dependable high-current switching and isolation.
• Three-pole construction for three-phase electrical distribution applications.
• Fixed installation provides a robust permanent switchboard solution.
• Adjustable rear horizontal terminals support integration with high-current switchgear busbar systems.
• 120 kA rated short-time withstand current for 1 s for demanding high-fault-level installations.
• Suitable for rated operational voltages up to 690 V AC.

Key Features

• ABB SACE Emax 2 E6.2X/MS series.
• 6300 A rated uninterrupted current.
• 3-pole configuration.
• Fixed installation.
• Rear horizontal (HR) terminals.
• Switch-disconnector functionality for high-current switching and isolation.
• 690 V AC maximum rated operational voltage.
• 6300 A rated operational current at AC-23, 400 V.
• 120 kA rated short-time withstand current for 1 s.
• IP30 degree of protection at the front side.
• Bolted main-circuit connection.
• Push-button operating element.
• Suitable for use as a main switch.

Very High-Current 6300 A Switching and Isolation

The ABB SACE Emax 2 E6.2X/MS is designed to provide controlled switching and isolation of very high-current low-voltage circuits. Its switch-disconnector configuration provides a dedicated means of disconnecting electrical circuits while allowing overcurrent and fault protection to be coordinated through suitable protective devices elsewhere within the power-distribution system.

With a 6300 A current rating, operation up to 690 V AC and a substantial 120 kA for 1 s short-time withstand capability, the E6.2X/MS 6300 is suited to major industrial and infrastructure switchboards. Its fixed construction and rear horizontal terminals make it particularly suitable for permanent installations requiring integration with high-capacity busbar systems.

Typical Applications

• Main switching and isolation in very high-current low-voltage switchboards.
• Industrial power-distribution systems.
• High-current three-phase circuit isolation.
• Transformer secondary and main distribution assemblies.
• Power generation and critical infrastructure switchgear.
• High-fault-level installations requiring substantial short-time withstand capability.