

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The COOPER CROUSE-HINDS TP833 is a steel extension ring designed to add depth to electrical outlet boxes, junction boxes, or device boxes during installation or retrofit work. Extension rings are used when the existing box does not provide enough interior volume or setback depth to meet code requirements or to accommodate the wiring and devices being installed. This accessory is constructed from steel for durability and long-term service in standard electrical enclosure applications. Licensed electricians and electrical contractors are the primary installers of this type of hardware.
The TP833 extension ring is suited for use in residential and light commercial electrical installations where additional box depth is required. Common applications include new construction rough-in, panel or device upgrades, and retrofit scenarios where wall finish depth has changed. It is compatible with standard outlet box configurations that accept extension ring accessories of this type.
Designed as an OEM-style accessory extension ring for use with compatible electrical outlet boxes and junction boxes requiring additional depth or volume.
Installation should be performed by a licensed electrician in accordance with applicable NEC requirements. Always shut off power at the circuit breaker and verify the circuit is de-energized with a voltage tester before beginning any box work. Secure the extension ring firmly to the existing box before pulling or connecting any conductors. Verify that the combined box volume meets NEC fill calculation requirements for the number and size of conductors and devices being installed.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!