1STQ009285A0000 ABB PRBE1243 Emax 2 E1.2 Withdrawable 3-4 Pole Vertical Reduced Kit W400 System pro E Power

Why Choose the ABB PRBE1243 Emax 2 E1.2 Withdrawable Circuit-Breaker Installation Kit?

The ABB PRBE1243 (1STQ009285A0000) is a dedicated vertical reduced-width installation kit for compatible ABB SACE Emax 2 E1.2 withdrawable air circuit-breaker arrangements within the ABB System pro E Power low-voltage switchboard system. The manufacturer specifies compatibility with 3-pole and 4-pole E1.2 withdrawable circuit-breaker configurations and a nominal installation width of 400 mm.

The authoritative ABB product designation, E1.2 KIT 3-4P WITHDR. V.REDUCED W=400MM, identifies the accessory's principal characteristics: an E1.2 circuit-breaker installation kit, compatibility with three- and four-pole arrangements, withdrawable execution, vertical reduced configuration and a nominal width of 400 mm.

Designed as part of the ABB System pro E Power modular switchboard accessory range, the PRBE1243 supports the mechanical integration of the specified ABB SACE Emax 2 circuit-breaker configuration into a compatible distribution assembly. It is particularly relevant where the switchboard design calls for a vertical reduced-width arrangement rather than a conventional installation configuration.

For electrical panel builders, switchboard manufacturers and distribution system engineers, the ABB PRBE1243 E1.2 withdrawable breaker kit provides a clearly identified manufacturer-specific accessory. Its ABB order code, 1STQ009285A0000, supports accurate purchasing, technical specification, switchboard bills of materials and maintenance documentation.

The PRBE1243 is an installation kit, not a complete circuit-breaker. The manufacturer designation does not establish that the E1.2 circuit-breaker, withdrawable fixed part, electrical terminals, interlocks or all associated mounting components are supplied. Package contents and required complementary accessories must be confirmed against the applicable ABB documentation.

Key Advantages

• Dedicated Emax 2 E1.2 installation kit: Specifically identified for compatible ABB SACE Emax 2 E1.2 circuit-breaker arrangements.
• 3-pole and 4-pole configurations: Manufacturer-designated for both three-pole and four-pole E1.2 installations.
• Withdrawable execution: Intended for the corresponding withdrawable circuit-breaker configuration.
• Vertical reduced arrangement: Designed for a designated vertical reduced-width switchboard layout.
• 400 mm nominal width: Supports the specified compact-width installation configuration.
• ABB System pro E Power integration: Belongs to the coordinated modular switchboard accessory range.
• Configuration-specific selection: Helps distinguish the required kit from fixed, plug-in or alternative mounting arrangements.
• Professional switchboard applications: Relevant to industrial and commercial low-voltage power distribution projects.
• Accurate manufacturer identification: Referenced by model PRBE1243 and ABB order code 1STQ009285A0000.
• Project documentation support: Suitable for inclusion in electrical assembly schedules and bills of materials.
• Compatible replacement identification: Provides an exact reference for maintenance and refurbishment of suitable switchboard assemblies.

Key Features

• ABB System pro E Power switchboard installation accessory.
• PRBE1243 manufacturer model designation.
• ABB order code: 1STQ009285A0000.
• Manufacturer designation: E1.2 KIT 3-4P WITHDR. V.REDUCED W=400MM.
• Intended circuit-breaker family: ABB SACE Emax 2.
• Specified circuit-breaker frame: E1.2.
• Supported pole configurations: 3-pole and 4-pole.
• Specified breaker execution: Withdrawable.
• Installation arrangement: Vertical reduced.
• Nominal installation width: 400 mm.
• Designed for compatible modular low-voltage switchboard configurations.
• Supports mechanical integration of the designated circuit-breaker arrangement.
• Requires coordination with the applicable withdrawable circuit-breaker installation components.
• Exact supplied parts and fixing details must be verified against ABB documentation.
• Intended for professional installation following the applicable ABB assembly instructions.

Designed for ABB SACE Emax 2 E1.2 Circuit-Breakers

The ABB PRBE1243 is identified for the ABB SACE Emax 2 E1.2 circuit-breaker frame. The Emax 2 range comprises low-voltage air circuit-breakers used in electrical power distribution systems, with different frame sizes, pole configurations and installation executions available according to the selected device.

The manufacturer designation specifically identifies the E1.2 frame. This is an important compatibility requirement because installation kits for other Emax 2 frame sizes may differ in their mounting arrangement, dimensions and associated components.

The PRBE1243 is also designated for 3-pole and 4-pole configurations. This allows the product to be identified for the corresponding E1.2 pole arrangements, subject to verification of the exact circuit-breaker variant and the applicable ABB mounting instructions.

The kit should not be assumed to accommodate ABB SACE Emax 2 E2.2, E4.2 or E6.2 frames, nor other circuit-breaker families such as ABB SACE Tmax XT. Compatibility with any device outside the specified E1.2 configuration must be established separately by ABB documentation.

The PRBE1243 provides a manufacturer-designated installation accessory, while the electrical protection characteristics of the completed arrangement depend on the particular E1.2 circuit-breaker selected, its trip unit, ratings and associated electrical connections.

Withdrawable E1.2 Circuit-Breaker Installation

The designation WITHDR. identifies the withdrawable execution for which the ABB PRBE1243 is intended. Withdrawable air circuit-breaker arrangements are used in switchboard designs where the circuit-breaker moving part is installed in conjunction with a compatible fixed part and associated connection and operating mechanisms.

Depending on the selected Emax 2 device and installation configuration, a withdrawable arrangement can provide defined operating positions for the circuit-breaker. The actual operating procedure, position indications and interlocking arrangements depend on the specific device and its installed accessories.

The PRBE1243 must therefore be selected with the appropriate ABB SACE Emax 2 E1.2 withdrawable circuit-breaker configuration. It should not be treated as interchangeable with a kit intended for a fixed circuit-breaker installation.

The manufacturer designation does not confirm whether the withdrawable fixed part, moving circuit-breaker, racking mechanism, auxiliary contacts, shutters or interlocks are included in the PRBE1243 package. These items must be checked against ABB's relevant product and assembly documentation.

All withdrawable circuit-breaker installations must follow the manufacturer's requirements for mechanical alignment, electrical connections, operating clearances and safe operation. The completed arrangement should be checked as part of the overall switchboard assembly verification.

Vertical Reduced Mounting for 400 mm Wide Switchboard Arrangements

A defining feature of the ABB PRBE1243 is its vertical reduced configuration. The manufacturer's designation identifies a specific installation arrangement rather than a universal circuit-breaker mounting solution.

The term vertical describes the designated mounting arrangement within the switchboard system. The term reduced identifies the corresponding reduced configuration specified by ABB. The exact meaning of this arrangement in relation to the enclosure structure and supporting components should be confirmed from the applicable System pro E Power technical drawings.

The 400 mm nominal width is a key selection characteristic. It identifies the width configuration for which the PRBE1243 is designated and should be checked against the intended switchboard compartment or mounting arrangement.

The 400 mm value should not automatically be interpreted as the precise physical width of every component supplied in the kit. Exact dimensions, mounting positions and installation clearances must be established from ABB's technical documentation.

Where the switchboard design also uses a compatible fixed reduced frame or other reduced-width structural components, the required combination should be confirmed against ABB's approved assembly arrangement. Matching nominal widths alone does not establish mechanical compatibility between two accessories.

Integration with ABB System pro E Power Distribution Switchboards

The ABB System pro E Power platform supports modular low-voltage switchboard construction using coordinated enclosure structures, mounting accessories, busbar arrangements, circuit-breaker installation components and internal segregation systems.

The PRBE1243 E1.2 withdrawable installation kit forms part of this modular approach. Its purpose is to support the specified circuit-breaker installation arrangement within a compatible switchboard, rather than to provide a complete electrical distribution assembly by itself.

A suitable installation requires coordination between the kit, the selected E1.2 withdrawable circuit-breaker, its associated fixed part, the switchboard structure and the electrical connection arrangement. The precise combination of components must be determined from ABB's applicable assembly documentation.

The panel builder should also consider access for installation, inspection and maintenance, together with the position of adjacent functional units, busbars and cable connection areas. These factors influence the mechanical and electrical suitability of the complete switchboard design.

Using the correct ABB manufacturer reference, 1STQ009285A0000, helps distinguish the PRBE1243 from other Emax 2 mounting accessories that may be intended for different frame sizes, pole configurations, circuit-breaker executions or installation widths.

IEC/EN 61439 and Complete Switchboard Verification

The IEC/EN 61439 series establishes requirements for low-voltage switchgear and controlgear assemblies. Compliance must be assessed for the completed switchboard, including its enclosure, protective devices, busbar system, electrical connections and supporting mechanical structures.

The ABB PRBE1243 is an installation accessory and should not be assigned independent electrical ratings that are not established by its manufacturer designation. The supplied specification does not determine the rated current, rated voltage, breaking capacity or short-circuit withstand capability of the finished switchboard.

The relevant electrical characteristics depend on the selected ABB SACE Emax 2 E1.2 circuit-breaker, its exact execution, trip unit, connection arrangement and the verified switchboard design.

Internal separation classifications such as Form 2, Form 3 and Form 4 depend on the complete arrangement of busbars, functional units, terminals and segregation barriers. The PRBE1243 does not independently establish a particular segregation form or subdivision.

The switchboard manufacturer remains responsible for verifying the completed assembly against the applicable IEC/EN 61439 requirements and ABB System pro E Power assembly instructions, including relevant mechanical and electrical performance considerations.

Selecting and Installing the ABB PRBE1243

Before ordering the ABB PRBE1243, confirm that the intended switchboard belongs to the System pro E Power range and requires the specified vertical reduced installation arrangement.

Verify that the selected circuit-breaker is an ABB SACE Emax 2 E1.2 in the appropriate withdrawable execution. The manufacturer designation supports both 3-pole and 4-pole configurations, but the exact breaker variant and associated components must be checked.

Confirm that the installation calls for the specified 400 mm nominal width. The enclosure structure, mounting arrangement and neighbouring components should be checked against the relevant ABB technical drawings.

Use the ABB order code 1STQ009285A0000 when purchasing the installation kit or recording it in the project bill of materials. This helps prevent confusion with fixed-execution kits or accessories intended for other Emax 2 frame sizes.

Before assembly, verify the exact supplied contents, required fixings, circuit-breaker fixed part, electrical connections and any complementary installation accessories. The PRBE1243 designation does not independently confirm that these items are included.

Installation should be undertaken by appropriately qualified personnel following ABB's applicable instructions. The completed circuit-breaker arrangement and switchboard must be checked for mechanical compatibility, safe operation and the relevant electrical requirements before being placed into service.

Typical Applications

• ABB System pro E Power low-voltage electrical distribution switchboards.
• ABB SACE Emax 2 E1.2 withdrawable circuit-breaker installations.
• 3-pole E1.2 withdrawable circuit-breaker mounting arrangements.
• 4-pole E1.2 withdrawable circuit-breaker mounting arrangements.
• Vertical reduced circuit-breaker installation configurations.
• 400 mm nominal width switchboard mounting arrangements.
• Industrial main distribution boards.
• Commercial building electrical power distribution assemblies.
• Modular low-voltage switchboard construction.
• Electrical infrastructure distribution projects.
• OEM switchboard manufacturing.
• Coordinated air circuit-breaker installation projects.
• Compatible switchboard extensions and refurbishment.
• Replacement of an identified ABB PRBE1243 installation kit.