Mitek 50ea1612g Ceiling Radiation Damper 16x12 Ul 555C

Product Description

The MITEK 50ea1612g is a rectangular ceiling radiation damper (CRD) designed for use in non-combustible ceiling assemblies requiring a 3-hour or less fire-resistance rating. Built to UL 555C classification standards, it features a one-piece roll-formed frame and blades constructed from 22-gauge galvanized steel. The standard configuration includes a 165 degrees F fusible link with an Easy Access (EA) attachment for simplified inspection and link replacement. A ceramic thermal blanket is factory-installed on units with a blade area greater than 84 square inches, ensuring compliant thermal performance in rated ceiling assemblies. Licensed HVAC technicians and mechanical contractors install this damper as a required component in fire-rated ceiling systems.

The 50ea1612g is sized at 16 inches x 12 inches and is intended for installation in non-combustible ceiling assemblies where air distribution penetrations require a fire-rated closure. It suits commercial and residential HVAC systems where the mechanical design requires ceiling radiation damper protection at supply or return grille locations in rated floor-ceiling or roof-ceiling assemblies. An optional 212 degrees F rated fusible link or Standard Link Attachment (SL) configuration is available for applications requiring alternative activation temperatures or mounting methods.

Key Features

• UL Classified to UL 555C for non-combustible ceiling assemblies rated 3 hours or less
• 22-gauge one-piece roll-formed galvanized steel frame and blades for rigid, durable construction
• Standard 165 degrees F fusible link with Easy Access (EA) attachment for quick inspection and replacement
• Optional 212 degrees F fusible link or Standard Link Attachment (SL) available for alternate configurations
• Ceramic thermal blanket included on units with blade areas exceeding 84 square inches
• Available in single-section sizes from 4 x 6 inches or 6 x 4 inches up to 24 x 24 inches

Compatibility

Designed as an OEM-style ceiling radiation damper for use in non-combustible, fire-rated ceiling assemblies requiring UL 555C compliance at a 3-hour rating or less.

Installation Notes

Installation must be performed by a qualified mechanical contractor or licensed HVAC technician in accordance with the International Mechanical Code (IMC) and applicable local fire codes. Power down and lock out the air handling system before beginning damper installation or fusible link service. The Easy Access fusible link design allows for periodic inspection without full damper removal, which is required by most authority having jurisdiction (AHJ) inspection schedules. Do not block or restrict the fusible link mechanism, and verify correct link temperature rating for the installation environment before closing the ceiling assembly.

Technical Specifications

• Size: 16 inches x 12 inches
• UL Classification: UL 555C
• Fire Rating: 3 hours (non-combustible installations)
• Frame and Blade Material: Galvanized Steel
• Gauge: 22 GA
• Standard Fusible Link Temperature: 165 degrees F
• Optional Fusible Link Temperature: 212 degrees F
• Standard Link Attachment: Easy Access (EA)
• Optional Link Attachment: Standard Link (SL)
• Thermal Blanket: Ceramic, provided on units with blade area greater than 84 square inches
• Profile: One-Piece Roll Formed
• Unit of Measure: Each

Standard Information

• Brand: MITEK
• Manufacturer Part Number: 50ea1612g