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The RACO 855 is an adapter ring designed for use in electrical box and enclosure installations. Adapter rings allow electricians to transition between different box sizes or cover plate configurations, providing a flush and code-compliant mounting surface for devices, covers, or fixtures. The 855 is packaged 25 units per carton, making it a practical choice for contractors stocking supplies for multi-unit or commercial projects. Licensed electricians typically handle installation as part of rough-in or finish electrical work.
This adapter ring is suited for residential and light commercial electrical installations where box extensions or cover transitions are required. It fits into standard rough-in workflows and is commonly used when upgrading or adapting existing electrical box configurations to accommodate new device or cover plate sizes.
Designed as an OEM-style replacement and standard-fit adapter ring for electrical box installations requiring a cover or device plate transition.
Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize the circuit at the breaker panel and verify power is off with a non-contact voltage tester before beginning work. Ensure the adapter ring seats flush against the existing box before securing the cover plate or device.
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