2CDD284101R0063 ABB SD204/63 Switch Disconnector 4P 63 A

Why Choose the ABB SD204/63 Switch Disconnector?

The ABB SD204/63 is a robust four-pole switch disconnector designed for manual switching and safe isolation of low-voltage electrical circuits. As part of the ABB SD200 series, it combines a high 63 A rated current with four-pole operation for dependable use in commercial, industrial and building electrical distribution systems.

The SD204/63 simultaneously switches four normally open contacts, making it particularly suitable for three-phase systems where the three phase conductors and neutral need to be disconnected together. ABB's SD200 design provides clear contact-position indication and a modular format compatible with System pro M compact installations.

With a 440 V AC rated operational voltage, AC-23A utilisation category and 25 kA conditional short-circuit current, the SD204/63 provides substantial switching capability for professional low-voltage distribution. Its four-module, 70 mm-wide DIN-rail housing provides straightforward integration into distribution boards and control panels.

Key Advantages

• Reliable four-pole switching and isolation for low-voltage circuits.
• 63 A rated current for demanding commercial and industrial applications.
• 440 V AC rated operational voltage suitable for three-phase systems.
• 25 kA conditional short-circuit current when used with appropriate upstream protection.
• AC-23A utilisation category supports switching under load.
• Clear contact-position indication supports confident manual operation.
• Compact 70 mm four-module design for DIN-rail distribution equipment.

Key Features

• ABB SD200 switch disconnector series.
• Four-pole (4P) configuration.
• Four normally open contacts.
• 63 A rated current.
• 440 V AC rated operational voltage.
• 125 V DC switching capability.
• AC-23A utilisation category.
• DC-21A utilisation category.
• 25 kA conditional short-circuit current.
• 4 kV rated impulse withstand voltage.
• IP20 degree of protection.
• 20,000-cycle mechanical endurance.
• DIN-rail mounting for modular electrical distribution assemblies.

Reliable Four-Pole Switching and Circuit Isolation

Four-pole switch disconnectors such as the ABB SD204/63 allow four conductors to be disconnected simultaneously, making them particularly useful in three-phase systems where the neutral conductor also needs to be switched. The device therefore provides a single manual control point for isolating downstream circuits and equipment.

The SD200 series provides disconnector properties in accordance with IEC/EN 60947-3 and requires appropriate upstream short-circuit and overload protection because the switch disconnector itself does not provide automatic overcurrent protection. Compatibility with ABB System pro M compact accessories and busbar arrangements further simplifies integration into professional distribution systems.

Typical Applications

• Three-phase plus neutral circuit switching and isolation.
• Commercial electrical distribution boards.
• Industrial control and distribution panels.
• Machinery and equipment isolation.
• Building-services electrical systems.
• Manual load switching in low-voltage AC installations.