Description
Description
The Eaton Crouse‑Hinds 335 is a 1/2‑inch knockout seal designed to close unused openings in steel junction boxes, enclosures, and panelboards. Manufactured from durable galvanized steel, it provides a secure mechanical seal that maintains the enclosure’s integrity and helps prevent dust, debris, and incidental contact with live components. The 335 knockout blank uses a two‑piece pressure‑type design—a front disc and a rear locking screw plate—to ensure a tight, vibration‑resistant fit in standard 1/2" trade‑size knockouts. Its low‑profile form factor makes it suitable for both surface‑mounted and flush‑mounted electrical installations in commercial, industrial, and residential environments.
Features
- 1/2" trade‑size knockout seal for closing unused enclosure openings
- Galvanized steel construction for corrosion resistance and long service life
- Two‑piece pressure‑type design (front disc + rear locking plate) for secure retention
- Vibration‑resistant clamping maintains seal integrity in industrial environments
- Low‑profile form factor suitable for tight or flush‑mount applications
- Prevents dust, debris, and accidental contact with internal live components
- Compatible with steel junction boxes, panelboards, and enclosures
- UL/CSA listed for electrical safety compliance
