Steel City 52-C-19 Square Box Plaster Ring 1 in Raised

Product Description

The STEEL CITY 52-C-19 is a raised-type square box plaster ring designed for two-gang device installations on 4-inch square electrical boxes. Constructed from hot-rolled pre-galvanized AISI C-1008 steel meeting ASTM G90-U standards at 0.062 inches thick, it provides a durable, corrosion-resistant mounting surface for switches and receptacles in drywall applications. The ring raises the device plane 1 inch above the box face and maintains a 12 cubic inch capacity, preserving maximum space for device wiring. Licensed electricians and electrical contractors install this ring as part of rough-in and finish wiring work in residential and light commercial construction.

This plaster ring suits new construction and renovation projects where 4-inch square outlet boxes are set in drywall or plaster walls and ceilings. Its two-gang opening accommodates duplex receptacles, switch combinations, and similar two-gang wiring devices. The quick-release locking mechanism allows the inner ring to be repositioned quickly during pre-drywall rough-in, and a measured rule on the inner ring aids pre-fabrication setting before drywall is hung. The locking mechanism sits behind the outer ring, keeping it away from router blades during drywall cutout and protected from excess joint compound during finishing.

Key Features

• Quick-release locking mechanism allows fast adjustment of the inner ring without special tools
• Locking mechanism positioned behind the outer ring for protection from router damage and excess mudding
• Adjustment screws located outside the inner ring to preserve full 12 cubic inch device capacity
• Measured rule on inner ring enables accurate pre-fab setting in pre-drywall installations
• Hot-rolled pre-galvanized steel construction resists corrosion in typical wall and ceiling cavities
• UL 514A, CSA, and FS W-J-800 listed for code-compliant installations

Compatibility

Designed as an OEM-style replacement and standard plaster ring for use with 4-inch square electrical outlet boxes requiring a two-gang, 1-inch raised device opening.

Installation Notes

Installation is performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize the circuit and verify absence of voltage before working in the box. Secure all conductors within the box before attaching the plaster ring to avoid reducing device capacity. When setting the ring depth during pre-drywall rough-in, use the built-in measured rule on the inner ring to match anticipated finished-wall thickness.

Technical Specifications

• Type: Raised Plaster Ring
• Opening Type: 2 Gang (2 Device)
• Box Size: 4 inches
• Raised Height: 1 inch
• Corner Type: Rounded
• Capacity: 12 cubic inches
• Material: Hot Rolled Pre-Galvanized AISI C-1008 Steel, ASTM G90-U, 0.062 inches thick
• Approvals: UL 514A, CSA, FS W-J-800
• Standard Package Quantity: 25 per carton
• Country of Origin: US

Standard Information

• Brand: STEEL CITY
• Manufacturer Part Number: 52-C-19