1STQ007822A0000 ABB PHCX4401 XT4 Fixed Installation Kit 3-4P Horizontal W600 mm System pro E Power

Why Choose the ABB PHCX4401 System pro E Power XT4 Installation Kit?

The ABB PHCX4401 (1STQ007822A0000) is a dedicated XT4 circuit breaker installation kit designed for integration with the ABB System pro E Power modular low-voltage switchboard system. Its authoritative product designation, XT4 KIT 3-4P FIXED HOR.INST. W=600MM, identifies a mounting arrangement for compatible ABB XT4 moulded-case circuit breakers in 3-pole or 4-pole fixed configurations, with horizontal installation in a nominal 600 mm wide switchboard.

Designed for professional electrical panel builders, switchboard manufacturers and industrial electrical engineers, the PHCX4401 provides a model-specific installation solution for incorporating compatible ABB XT4 circuit breakers into System pro E Power electrical distribution assemblies. Its designated configuration supports the coordination of circuit breaker mounting positions, equipment access and enclosure layouts.

The ABB PHCX4401 XT4 installation kit is particularly relevant where a fixed XT4 circuit breaker must be installed horizontally within a 600 mm nominal width switchboard configuration. Selecting the correctly specified installation kit helps panel builders match the breaker family, pole arrangement, mounting type and enclosure configuration during professional switchboard construction.

Key Advantages

• Genuine ABB System pro E Power XT4 installation kit for modular low-voltage electrical switchboards.
• Designed for compatible ABB XT4 moulded-case circuit breakers.
• Supports both 3-pole and 4-pole circuit breaker configurations.
• Specifically designated for fixed circuit breaker installation.
• Supports horizontal mounting within compatible switchboard arrangements.
• Designed for 600 mm nominal width System pro E Power configurations.
• Helps panel builders distinguish fixed XT4 installations from plug-in and withdrawable arrangements.
• Supports coordinated circuit breaker positioning and electrical distribution panel layout planning.
• Designed for integration with the ABB System pro E Power modular enclosure platform.
• Suitable for professional switchboard manufacturing, equipment installation and compatible refurbishment projects.

Key Features

• ABB System pro E Power series switchboard installation accessory.
• Product reference: PHCX4401.
• ABB order code: 1STQ007822A0000.
• Product designation: XT4 KIT 3-4P FIXED HOR.INST. W=600MM.
• Compatible circuit breaker family: ABB XT4.
• Supported pole configurations: 3-pole and 4-pole.
• Circuit breaker mounting arrangement: Fixed.
• Installation orientation: Horizontal.
• Nominal switchboard width: 600 mm.
• Designed for use with compatible XT4 fixed mounting arrangements.
• Supports integration with designated ABB System pro E Power enclosure structures.
• Dedicated mechanical installation accessory for professional low-voltage electrical distribution assemblies.

Purpose-Designed XT4 Fixed Circuit Breaker Integration

The ABB PHCX4401 installation kit supports the mechanical integration of compatible ABB XT4 moulded-case circuit breakers into System pro E Power modular low-voltage switchboards. Correct circuit breaker mounting is an important aspect of switchboard construction because equipment positioning, electrical connections, operating access and required clearances must be coordinated within the enclosure.

A defining characteristic of the PHCX4401 is its fixed installation designation. In a fixed circuit breaker arrangement, the selected breaker is mounted in its designated installation position rather than using a plug-in or withdrawable connection system. The installation kit must therefore be matched to the intended fixed XT4 configuration.

The kit is specified for 3-pole and 4-pole ABB XT4 circuit breakers. These configurations allow panel builders to select compatible equipment according to the electrical distribution design. The appropriate pole arrangement, rated current, breaking capacity and protective characteristics are determined by the separately selected XT4 circuit breaker, not by the PHCX4401 mounting kit.

The horizontal installation orientation is another important characteristic of the PHCX4401. The kit is intended for the designated horizontal arrangement, and installers should verify the circuit breaker's permitted mounting orientation, terminal connection layout, operating access and required clearances against the applicable ABB technical documentation.

The PHCX4401 is designed for a 600 mm nominal switchboard width. This dimension identifies the intended System pro E Power enclosure configuration rather than the physical width of the circuit breaker or installation kit. The remaining enclosure dimensions, internal equipment layout and any additional mounting requirements must also be considered during switchboard design.

The ABB System pro E Power platform supports modular low-voltage electrical distribution assemblies used in industrial, commercial and infrastructure applications. Its enclosure architecture allows compatible structural components, circuit breaker installation accessories, protective panels and other equipment to be combined according to the requirements of the electrical installation.

The PHCX4401 should be selected as part of a coordinated switchboard design. Before installation, panel builders should confirm the specific XT4 breaker variant, pole configuration, fixed mounting arrangement, enclosure width and any associated operating accessories against ABB's applicable assembly instructions. The manufacturer's product designation establishes the intended configuration but does not independently confirm compatibility with every XT4 variant.

As a mechanical circuit breaker installation accessory, the PHCX4401 does not independently provide overcurrent protection, short-circuit protection, switching or electrical isolation. These functions depend on the selected ABB XT4 circuit breaker and the completed electrical assembly. The product designation also does not confirm that the circuit breaker, operating mechanism or additional electrical connection accessories are included in the kit.

Typical Applications

• ABB System pro E Power modular low-voltage switchboards.
• Installation of compatible ABB XT4 moulded-case circuit breakers.
• Fixed 3-pole XT4 circuit breaker mounting arrangements.
• Fixed 4-pole XT4 circuit breaker mounting arrangements.
• Horizontal circuit breaker installation in compatible switchboard structures.
• Electrical distribution assemblies using designated fixed breaker configurations.
• Industrial main and sub-distribution switchboards.
• Commercial building low-voltage electrical distribution assemblies.
• OEM electrical panel building and switchboard manufacturing.
• Refurbishment and replacement of compatible ABB XT4 fixed installation arrangements.