Rectorseal 66366 Metacaulk Box Guard 4 x 10 x 4 in Single Box Fire Rated Insert

Product Description

The Rectorseal 66366 Metacaulk Box Guard is a fire-rated pad designed for electrical boxes. This product meets the requirements for use in various fire protection applications. When exposed to heat, the material expands, forming a protective barrier to seal openings in the electrical box. This helps to prevent the spread of flames and limits temperature increases on adjacent surfaces.

• Complies with NEC 314.16 and UL 411 testing standards.
• Intended for retrofit applications and simple installation.
• Economical alternative to traditional putty pads.

Product Highlights

The Metacaulk Box Guard is ideal for ensuring electrical boxes maintain fire safety compliance. Its intumescent property enhances firestop capabilities by forming a char when exposed to fire, effectively sealing off openings.

Product Information

Standard Information

• Brand: Rectorseal
• MPN: 66366

Technical Specifications

• Application: For electrical boxes
• Color: Black
• Fire Rating: Up to 3 hr
• Height: 2-13/16 in
• Length: 1-13/16 in
• Material: Intumescent
• Specifications Met: ASTM E90, cULus Listed, UL 411
• Standards/Approvals: FM Approved, INTERTEK, STC rating 53
• Type: Single
• Width: 1/4 in