Why Choose the ABB ZX391 SlimLine Mounting Frame 3PW?
The ABB ZX391 (2CPX068561R9999) is a purpose-designed three-panel-wide mounting frame for ABB SlimLine NH fuse switch-disconnectors. Developed for compatible ABB STRIEBEL & JOHN electrical distribution systems, it provides a dedicated mechanical mounting arrangement for integrating SlimLine switching equipment into professional low-voltage distribution assemblies.
Designed for a three-field-wide distribution layout, the ZX391 is specifically associated with the M(B)L35 installation arrangement. ABB identifies the mounting frame as suitable for a five-row-equivalent configuration, making it a specialist accessory for distribution panel construction where the positioning and support of NH fuse switch-disconnectors must match the manufacturer's system design.
The frame measures 645 mm wide × 460 mm high × 83 mm deep, providing a defined mounting structure for compatible equipment. Its vertical console-style construction is intended to support the installation of ABB SlimLine NH load-break switching devices within the appropriate distribution field.
Supplied as one mounting frame per pack, the ABB ZX391 is suitable for new switchboard installations, distribution system expansion and replacement projects requiring the specified three-panel-wide SlimLine mounting arrangement. It is a mechanical mounting accessory rather than a complete switch-disconnector, fuse carrier or electrical protection device.
Key Advantages
- Designed for ABB SlimLine NH fuse switch-disconnectors in compatible distribution assemblies.
- Three-panel-wide (3PW) configuration supports suitable distribution field layouts.
- Dedicated compatibility with M(B)L35 simplifies correct accessory identification.
- Five-row-equivalent (5 RE) arrangement for the specified mounting application.
- 645 × 460 × 83 mm external dimensions provide a defined installation footprint.
- Vertical mounting frame construction supports organised installation of compatible switching equipment.
- Manufacturer-specific design helps ensure the correct mechanical arrangement within ABB systems.
- Suitable for professional electrical panel building and switchboard assembly.
- Useful for distribution board expansion where a compatible three-field SlimLine section is required.
- Supports consistent equipment positioning when installed according to ABB's assembly instructions.
- Part of the ABB STRIEBEL & JOHN interior expansion system.
- Compatible with appropriately designed low-voltage distribution installations.
- Single-piece supply simplifies ordering for a specific mounting position.
- ABB manufacturer order code enables precise replacement and project specification.
- Alternative two-field version available for installations requiring a narrower mounting arrangement.
Key Features
- ABB ZX391 SlimLine mounting frame.
- ABB order code 2CPX068561R9999.
- Three-panel-wide mounting configuration.
- Designed for ABB SlimLine NH fuse switch-disconnectors.
- Compatible distribution field reference M(B)L35.
- Five-row-equivalent (5 RE) arrangement.
- Vertical console-style mounting design.
- 645 mm external width.
- 460 mm external height.
- 83 mm external depth.
- Mechanical mounting accessory for distribution panel interiors.
- ABB STRIEBEL & JOHN interior expansion system component.
- Suitable for compatible CombiLine distribution arrangements.
- Intended for professional switchboard assembly.
- One mounting frame supplied.
- German country of origin.
- EAN / GTIN 4011617685616.
- ABB product ID 2CPX068561R9999.
Technical Specifications
- Manufacturer: ABB
- Associated brand: ABB STRIEBEL & JOHN
- Product model: ZX391
- ABB order code: 2CPX068561R9999
- ABB product ID: 2CPX068561R9999
- ABB product group: DESUJ Sub Distribution
- Product type: SlimLine mounting frame
- Accessory classification: Interior expansion system component
- Primary application: Mounting ABB SlimLine NH fuse switch-disconnectors
- Compatible equipment family: ABB SlimLine
- Compatible distribution field: M(B)L35
- Panel width: 3 fields
- Panel width designation: 3PW
- Installation height classification: 5 RE
- Mounting arrangement: Vertical
- External width: 645 mm
- External height: 460 mm
- External depth: 83 mm
- Dimensions (W × H × D): 645 × 460 × 83 mm
- System application: Compatible low-voltage distribution assemblies
- Accessory function: Mechanical equipment mounting and positioning
- Electrical switching function: None; mounting frame only
- Overload protection: Not provided by the frame
- Short-circuit protection: Not provided by the frame
- Fuse switch-disconnector included: Not specified as included
- Quantity supplied: 1 piece
- Packaging length: Approximately 750 mm
- Packaging width: Approximately 320 mm
- Packaging depth: Approximately 130 mm
- Packaging gross weight: Approximately 4.689 kg
- Country of origin: Germany
- EAN / GTIN: 4011617685616
- Customs tariff number: 85389099
Purpose-Designed Mounting for ABB SlimLine NH Fuse Switch-Disconnectors
The ABB ZX391 provides a dedicated mechanical mounting solution for ABB SlimLine NH fuse switch-disconnectors within compatible distribution board assemblies. NH fuse switch-disconnectors combine switching and fuse-based circuit protection when fitted with correctly selected fuse links. The ZX391 itself serves only as the mounting structure for the associated equipment.
ABB specifies the ZX391 for a three-field-wide installation, identified by the M(B)L35 distribution field reference. This manufacturer-defined compatibility is important because the mounting arrangement must match the switchgear layout, supporting structure and available installation space.
The frame's 645 mm width corresponds to its intended three-panel-wide mounting configuration. Its 460 mm height and 83 mm depth provide the physical dimensions needed when planning the internal arrangement of a compatible distribution assembly. Installers should allow for the additional space required by the fitted switching equipment, terminals, conductors and any associated accessories.
The vertical mounting arrangement is intended to provide a structured installation position for compatible SlimLine equipment. Correct alignment is important for maintaining the manufacturer's intended mechanical arrangement and ensuring suitable access to the installed switch-disconnectors.
As part of the ABB STRIEBEL & JOHN interior expansion system, the ZX391 is intended for use with specified distribution field components rather than as a universal mounting bracket. Its suitability must therefore be established through the exact ABB system configuration, not simply by matching the external dimensions.
The ZX391 is supplied as a single mounting frame. The associated NH fuse switch-disconnectors, fuse links, electrical connections and any separately required mounting accessories must be specified according to the installation design and the manufacturer's assembly documentation.
Installation and Compatibility Considerations
The ABB ZX391 should be installed by competent electrical personnel or qualified panel builders familiar with the relevant ABB distribution system. Installation must follow the manufacturer's mounting instructions and the applicable electrical assembly standards.
Before installation, confirm that the distribution field corresponds to the M(B)L35 three-field arrangement and that the intended ABB SlimLine NH fuse switch-disconnectors are suitable for the specified mounting configuration.
The mounting frame must be securely attached to the appropriate supporting structure. The correct fasteners, mounting points and installation method should be taken from ABB's documentation for the complete distribution assembly. Fastening hardware should not be assumed to be included unless confirmed by the supplied product contents.
Careful consideration should be given to cable routing, busbar arrangements, equipment clearances and access for maintenance. The frame's 83 mm depth is the mounting accessory dimension and does not represent the total depth required by a completed SlimLine installation.
Where the installation includes NH fuse switch-disconnectors, the associated electrical equipment must be selected for the system voltage, load current, prospective fault current and fuse protection requirements. The mounting frame itself has no independent electrical current rating or short-circuit breaking capacity.
The completed switchboard or distribution assembly must provide the required protection against electric shock, mechanical hazards and environmental conditions. The ZX391 does not independently establish an IP protection rating for the completed enclosure.
Typical Applications
- ABB SlimLine NH fuse switch-disconnector installations.
- Three-panel-wide electrical distribution fields.
- Compatible ABB M(B)L35 distribution assemblies.
- Industrial low-voltage switchboards.
- Commercial electrical distribution systems.
- ABB STRIEBEL & JOHN interior expansion systems.
- Compatible CombiLine distribution panel arrangements.
- Electrical switchboard manufacturing and assembly.
- NH fuse switch-disconnector mounting projects.
- Industrial power distribution panel upgrades.
- Distribution board refurbishment and maintenance.
- Electrical plant room distribution assemblies.
- OEM electrical distribution equipment.
- Replacement of manufacturer-specified SlimLine mounting frames.
ABB provides mounting frame options for different distribution field widths. The correct version should be selected according to the compatible field arrangement and the intended SlimLine equipment.
- ABB ZX390 – 2CPX068560R9999: SlimLine NH fuse switch-disconnector mounting frame for a two-field-wide arrangement, compatible with M(B)L25.
- ABB ZX391 – 2CPX068561R9999: SlimLine NH fuse switch-disconnector mounting frame for a three-field-wide arrangement, compatible with M(B)L35.
The ZX390 and ZX391 are designed for different panel widths and should not be treated as interchangeable without checking the complete ABB distribution system configuration.
