Knockout Reducing Washers
Knockout reducing washers are used to adapt enclosure knockout openings to fit smaller fittings and connectors. They support clean installation when the available knockout size does not match the required conduit fitting or connector size. For related enclosure and panel protection products, see HMI Covers.
Types of Knockout Reducing Washers
- Reducing washers used for common size reductions in panel and enclosure work.
- Washers designed for secure fit and stable mounting of fittings.
- Reducing solutions selected for maintenance and retrofit installations.
Key Selection Criteria for Knockout Reducing Washers
Choosing the correct knockout reducing washer requires evaluating several technical factors:
- Knockout size and the target fitting size needed for the installation.
- Compatibility with the enclosure thickness and knockout style.
- Material and finish suitable for the environment.
- Fit and seating characteristics to support stable mounting.
- Any installation constraints such as access and tool clearance.
Selecting properly sized reducing washers helps support secure fitting installation and reduces the risk of loose connections or misalignment. For related insulated mounting needs, see Electrical Standoff.
Frequently Asked Questions
What are knockout reducing washers used for?
They are used to reduce a larger knockout opening so a smaller conduit fitting or connector can be installed securely in an enclosure or panel.
How do I choose the right size reduction?
Confirm the enclosure knockout size and the size of the fitting you need to install, then select a washer designed to reduce from the knockout size to the fitting size.
What should I consider for enclosure and fitting compatibility?
Consider enclosure thickness, knockout style, and the fitting hardware so the reducing washer seats properly and supports stable installation. If you are also planning panel layout and spacing, see Electrical Standoff.