4TBO851255C0100 ABB 851255 APO Enclosure Cover Screws

Why Choose the ABB 851255 APO Enclosure Cover Screws?

The ABB 851255 (4TBO851255C0100) is a cover screw accessory from the ABB APO Enclosures product group. Intended for use with compatible electrical enclosure covers, these screws provide a fastening solution for securing suitable covers to their corresponding enclosure bodies. They are relevant to electrical installation, enclosure assembly, maintenance and replacement applications where correctly specified cover fasteners are required.

Cover fastening is an important part of electrical enclosure construction. A properly secured cover helps maintain the intended mechanical assembly, supports safe access arrangements and contributes to the correct positioning of enclosure sealing components where fitted. The ABB 851255 cover screws are designed for appropriately matched APO enclosure arrangements, making them useful when assembling electrical equipment housings or replacing missing, damaged or unsuitable cover fasteners.

Identified by ABB product reference 851255 and genuine ABB order code 4TBO851255C0100, this accessory provides a manufacturer-specific option for compatible enclosure cover installations. The supplied description confirms the product as “851255 Cover Screws”, although screw dimensions, material, head type, thread specification and pack quantity should be verified against ABB technical documentation before ordering.

Key Advantages

• Genuine ABB enclosure cover screws from the APO Enclosures product group.
• Designed for fastening covers on appropriately specified electrical enclosures.
• Provides a dedicated accessory for enclosure cover fixing and retention.
• Useful for replacing missing or damaged cover fasteners in compatible assemblies.
• Supports correct enclosure assembly and maintenance procedures.
• Helps maintain the intended positioning of a compatible enclosure cover.
• Relevant to electrical distribution, control and junction enclosure installations.
• Suitable for appropriately specified enclosure refurbishment and repair projects.
• Provides a manufacturer-identified alternative to selecting unverified generic screws.
• Identified by genuine ABB manufacturer order code 4TBO851255C0100.

Key Features

• ABB APO Enclosures accessory range.
• ABB product reference 851255.
• ABB order code 4TBO851255C0100.
• Cover screw accessory configuration.
• Intended for compatible electrical enclosure cover fastening arrangements.
• Supports mechanical attachment of appropriately matched enclosure covers.
• Relevant to original enclosure assembly and replacement fastening applications.
• Suitable for electrical enclosure maintenance and refurbishment work.
• Requires verification of the corresponding enclosure reference.
• Thread size and screw dimensions should be checked against ABB specifications.
• Installation should follow the applicable manufacturer's fastening instructions.
• Part of the ABB APO Enclosures product group.

Reliable Cover Fastening for Compatible ABB APO Electrical Enclosures

Electrical enclosure covers must be secured using fasteners appropriate to the enclosure design. Screw length, thread form, head geometry and tightening requirements can affect how the cover fits against the enclosure body. The ABB 851255 APO cover screws provide a dedicated fastening accessory for compatible installations, supporting the assembly and maintenance of electrical equipment housings where the specified cover fixing arrangement must be maintained.

Using the correct enclosure fasteners is particularly important when a cover incorporates a gasket or forms part of an assembly with a defined ingress protection rating. Incorrect screws may prevent the cover from seating properly, damage the enclosure threads or produce uneven compression of sealing components. The ABB 851255 should therefore be selected only after confirming compatibility with the relevant APO enclosure reference. The supplied specification does not establish the screw material, dimensions, quantity or tightening torque, and the screws alone do not confer an IP rating on an enclosure. Any required environmental protection depends on the complete enclosure design and correct assembly.

Typical Applications

• Fastening covers on compatible ABB APO electrical enclosures.
• Replacement of missing enclosure cover screws.
• Replacement of damaged or unsuitable cover fasteners.
• Electrical junction box assembly and maintenance.
• Electrical distribution equipment enclosure servicing.
• Industrial automation and control equipment housings.
• Commercial building services electrical installations.
• Instrumentation and electrical connection enclosures.
• Maintenance and refurbishment of compatible APO enclosure assemblies.
• Electrical installation projects requiring manufacturer-specified cover fasteners.