Abb TFH Filler Plate 0.5 Inch Knockout Cover

Product Description

The ABB TFH is a front filler plate designed to cover unused 0.5-inch rectangular breaker knockouts in electrical panels and load centers. This cover plate provides a clean, finished appearance while blocking open knockout openings that could expose energized components. It is a straightforward, code-relevant accessory installed by licensed electricians during panel assembly, retrofit work, or when reconfiguring breaker positions in an existing enclosure. The TFH fits standard 0.5-inch rectangular knockout slots and keeps the interior protected from debris and accidental contact.

The TFH is used in residential and light commercial electrical panel applications where a breaker position is left empty or a previously occupied slot needs to be blanked off. It is appropriate for use during panel upgrades, service replacements, or any situation where an open knockout must be covered to maintain code compliance and enclosure integrity.

Key Features

• Covers 0.5-inch rectangular breaker knockouts in electrical panels
• Provides a finished, closed appearance on unused panel positions
• Supports enclosure integrity by sealing open knockout openings
• Suitable for use during panel upgrades and breaker position changes

Compatibility

Designed as an OEM-style replacement filler plate for electrical panels and load centers with standard 0.5-inch rectangular breaker knockout openings.

Installation Notes

Installation is performed by a licensed electrician. Always shut off power to the panel and follow lockout/tagout procedures before working inside any electrical enclosure. The filler plate should be seated firmly in the knockout opening to ensure a secure fit. Work must comply with applicable NEC requirements for panel enclosure integrity.

Technical Specifications

• Knockout Size: 0.5 inches
• Knockout Type: Rectangular breaker knockout
• UPC: 783164044157

Standard Information

• Brand: ABB
• Manufacturer Part Number: TFH