Product Description
NFBIC-401AT/25A 4" Fire Box IC AT Hsg GU10 25W Max from Nora Lighting is a specification-grade, fire-rated recessed housing designed for maximum safety and performance. With a two-hour fire rating and integrated sound-dampening insulation, this 4" GU10 housing is ideal for residential, multi-family, and commercial construction projects requiring high fire-resistance and air-tight compliance.
Product Name: NFBIC-401AT/25A Fire-Rated IC Housing
Brand: Nora Lighting
Type: 4" Recessed Fire-Rated Housing
Socket Type: GU10 Medium Base
Wattage: 25W max
Voltage: 120V
Fire Rating: 2 Hours (cULus Classified)
Free shipping on orders over $250
Product Benefits
- Two-hour fire rating helps contain flame, smoke, and gas in ceiling plenums
- Sound-dampening insulation reduces noise transfer between floors
- Air-tight construction improves energy efficiency and meets ASTM-283 standards
- Ideal for residential and commercial buildings where safety and code compliance are priorities
Key Features
- Die-formed galvanized steel housing with integrated non-combustible fiber fill
- Porcelain GU10 socket for 25W max MR16 lamps
- Adjustable bar hangers (13-3/4” to 24-1/2”) with captive nails for secure joist mounting
- Compatible with multiple trims from Nora Lighting’s 4" collection
- cULus wet location listed when used with approved trims
Technical Specifications
| Electrical Specs | |
|---|---|
| Voltage | 120V |
| Wattage | 25W max |
| Socket Type | GU10 (Porcelain) |
| Lamp Type | MR16 GU10 |
| Thermal Protection | UL rated at 135ºC |
| Physical Specs | |
|---|---|
| Ceiling Cutout | 4-3/8" |
| Housing Height | 6-3/4" |
| Housing Length | 10-11/16" |
| Bar Hanger Range | 13-3/4" to 24-1/2" |
| Ceiling Thickness | Up to 1-3/4" |
| Compliance & Safety | |
|---|---|
| Fire Rating | 2 Hour cULus Classified |
| Listings | cULus Listed for Wet Location (with compatible trim) |
| Air-Tight Rating | Meets ASTM-283 |
| UL Standards | ANSI/UL 263 and ANSI/UL 1598 |
Application Examples
- Multifamily residential buildings and apartments
- Commercial structures with fire-rated ceiling requirements
- Hotels, condominiums, and townhomes
- Hallways, entryways, and wet location rated areas (with trim)
Installation Tips
- Use included adjustable bar hangers to mount between joists or T-bar grid
- Ensure fire-rated ceiling assemblies comply with UL L500 series construction
- Maintain minimum 3' spacing between fixtures, with no more than one per 25 sq ft of ceiling area
- Use compatible Nora trims to maintain wet location and fire-rated listings
Frequently Asked Questions
What lamp does this housing support?
It supports a maximum 25W MR16 GU10 base lamp (not included).
Is this housing suitable for use in fire-rated ceilings?
Yes, it is cULus classified for two-hour fire-rated applications.
Can this be used in wet locations?
Yes, when paired with compatible Nora trims listed for wet locations.
Is this an air-tight housing?
Yes, it meets ASTM-283 air-tight requirements with factory-installed gaskets.
Is this housing IC-rated?
Yes, it is rated for direct contact with insulation.
What trims are compatible with this housing?
It is compatible with over 30 Nora trims, including NL-410, NL-414, NL-418, NL-420, and others.
What is the ceiling cut-out size?
The required ceiling cut-out is 4-3/8".
Does it include thermal protection?
Yes, it includes a standard UL thermal protector rated at 135ºC.
What kind of bar hangers are included?
Adjustable from 13-3/4" to 24-1/2", they include captive nails and can be rotated for flexible mounting.
Can I install this in T-bar ceilings?
Yes, the housing includes a notch for easy installation in suspended T-bar ceilings.
