1STQ009407A0000 ABB PTBB5057 IP40 Blind Top/Bottom Panel W500 mm D500 mm System Pro E Power

Why Choose the ABB PTBB5057 IP40 Blind Top/Bottom Panel?

The ABB PTBB5057 (1STQ009407A0000) is an IP40 blind top/bottom enclosure component designed for the ABB System Pro E Power modular low-voltage switchboard range. Specified for an enclosure configuration with a nominal width of 500 mm and depth of 500 mm, this accessory provides a dedicated closure solution for compatible switchboard top or bottom positions where a solid panel without preformed openings is required.

The top and bottom sections of an electrical switchboard are important parts of the enclosure's overall protective structure. The ABB PTBB5057 is intended to close the designated enclosure opening, helping maintain the physical separation between internal electrical equipment and the surrounding environment. Its blind configuration is particularly suitable for installations that do not require cable-entry apertures, ventilation openings or other preformed penetrations in the selected top or bottom position.

Identified by ABB manufacturer order code 1STQ009407A0000, the PTBB5057 belongs to the System Pro E Power family of modular switchboard accessories. Its IP40 designation, 500 mm nominal width and 500 mm nominal depth are the principal selection characteristics. The component is intended for use with compatible ABB enclosure structures and should be installed using the mounting arrangements specified in the relevant ABB assembly documentation.

Key Advantages

• ABB System Pro E Power compatibility: Designed for integration into ABB's modular low-voltage switchboard platform.
• IP40 protection designation: Intended for compatible enclosure assemblies requiring protection against solid foreign objects of 1 mm and larger.
• Blind panel configuration: Provides a solid closure without preformed cable-entry or ventilation openings.
• Top or bottom installation: Specified as a top/bottom accessory for compatible switchboard enclosure arrangements.
• 500 mm nominal width: Matches the designated width of the intended enclosure configuration.
• 500 mm nominal depth: Supports selection for compatible switchboard structures with the specified depth.
• Modular enclosure integration: Helps complete the protective outer structure of a compatible electrical distribution cabinet.
• Clear manufacturer identification: The PTBB5057 designation and ABB order code simplify accurate component selection and replacement.

Key Features

• Genuine ABB System Pro E Power switchboard enclosure accessory.
• Manufacturer product designation: PTBB5057.
• ABB ordering reference: 1STQ009407A0000.
• Manufacturer description: IP40 Blind Top/Bottom W=500 mm D=500 mm.
• Blind closure design without preformed functional openings.
• IP40 ingress protection designation.
• Specified for compatible top or bottom enclosure positions.
• Nominal installation width of 500 mm.
• Nominal installation depth of 500 mm.
• Designed for integration with compatible modular low-voltage switchboard structures.
• Suitable for professional switchboard construction, enclosure assembly and compatible refurbishment projects.

Complete Compatible Switchboard Enclosures with a Blind Top or Bottom Closure

A properly configured switchboard enclosure requires suitable components for its front, rear, sides, top and bottom. The ABB PTBB5057 provides a manufacturer-specified blind top/bottom arrangement for compatible System Pro E Power structures with a nominal 500 mm width and 500 mm depth. Its solid configuration is useful where the selected enclosure position does not need preformed openings for cables, ventilation or other services. This allows panel builders to choose a closure component that matches the intended enclosure layout rather than introducing unnecessary apertures.

The IP40 designation indicates protection against solid foreign objects of 1 mm and larger but does not provide a rated level of protection against water ingress. Importantly, the PTBB5057 is an enclosure accessory rather than a complete protective enclosure or electrical distribution system. The ingress protection of the finished switchboard depends on the full assembly, including its frame, doors, panels, joints, cable entries and installation details. Any subsequent drilling, cutting or modification must be assessed for its effect on the intended protection level and the applicable ABB assembly requirements.

Typical Applications

• ABB System Pro E Power switchboards: Installation of compatible IP40 blind top or bottom enclosure closures.
• Industrial electrical distribution boards: Completion of modular low-voltage switchboard enclosure structures.
• Commercial electrical installations: Compatible distribution cabinets requiring a solid top or bottom panel.
• Electrical panel manufacturing: OEM and specialist panel-building projects using ABB enclosure components.
• 500 mm wide enclosure configurations: Switchboard assemblies requiring the specified nominal width.
• 500 mm deep enclosure configurations: Modular cabinet structures designed around the stated nominal depth.
• Switchboard assembly and integration: Closure of designated enclosure openings without preformed service penetrations.
• Electrical enclosure refurbishment: Replacement of compatible blind top/bottom components in existing System Pro E Power assemblies.