Nora Lighting NS-401QAT/20 4" Air-Tight Line Voltage New Construction Housing

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NORA Lighting NS-401QAT/20

NS-401QAT/20 Product Description

New construction housing for use in non-insulated ceilings, where insulation can be kept 3"
from fixtures. Rated for use with a line voltage lamp.


Low 5 5/8-inch (143mm) profile for shallow plenums
Requires minimum clearances of 3-inch from thermal insulation and 1/2-inch from adjacent building components
Ceiling thickness varies from 5/8-inch to 1 1/4-inch
Bar hangers are adjustable from 13 5/8-inch to 24-inch and can be repositioned 90°
Quick connectors provided
0.035 one-piece drawn steel housing
Factory treated to restrict airflow from room into ceiling plenum


Plaster Frame : 0.040 steel frame with integral bar hanger brackets. Brackets can accommodate longer 27" accessory flat bar hangers. Brackets run along all sides of frame to allow bar hangers to be run parallel or perpendicular to junction box.

Housing : 0.035 white baked enamel one-piece drawn steel. Adjustable for ceiling thickness from 5/8" to 1-3/8".

Clearance : Non-IC housings require a minimum clearance of 3" from thermal insulation and 1/2" from adjacent building components.

Air Tight: Housing includes pre-installed gaskets to restrict airflow from room into ceiling plenum

Minimum Clearances: Non-IC housings require a minimum clearance of 3″ from thermal insulation and 1/2″ from adjacent building components

Ceiling Thickness: Ceiling thickness varies from 5/8″ – 1-3/8″

Lamp Adjustment: Adjustable socket mounting plate allows different types of lamps to be used for best possible light distribution. Socket can be removed from socket plate for adjustable trims.

Installation: Bar hangers are adjustable from 13-5/8″ to 24-1/2″ and can be repositioned 90 degrees. Bar hangers are slotted for T-bar installation and include captive nails.

Socket : Galvanized steel socket plate adjusts inside housing for optimum light performance. Contains a single medium base socket. Protective cap included to protect socket interior during ceiling painting. Socket plate can be removed in the field to convert to a floating socket.

Bar Hangers : Two 13-3/4" to 24-1/2" adjustable bar hangers with captive nails are included on frame. Bar hangers are parallel to junction box, but can be repositioned 90º perpendicular to junction box if desired. "L" Shaped bar hanger foot to align to bottom of construction joist. A T-Bar notch allow for easy installation in a suspended ceiling.

Junction Box : Prewired 25 cubic inch 0.060" thick galvanized steel, with seven 1/2" knockouts, four Romex® pryouts, and snap on covers. All leads are #18AWG wire, the ground wire is connected to the bottom, and quick connectors are supplied on all leads. Through branch circuit wiring, (4-in, 4-out).

Standard flex whip carries wire lead from junction box into housing. Wire leads extend from housing and thermal device to medium base socket.
Thermal Protector
Standard UL thermal protector rated for 90ºC (194ºF) is affixed to side wall surface of housing.

Maximum Wattage: 50W (actual wattage varies with trim)

Length: 8-1/2″
Width: 5-5/8″
Depth: 5-3/4″
Ceiling Opening: 4-3/8″

cULus Damp Location w/ Feed Through
cULus Wet Location (Only with designated trims)
Washington State Approved
Meets or exceeds ASTM-283 Air-Tight

About Nora Lighting

After stepping into the lighting game just a little over 20 years ago, Nora lighting has sprinted its way to the top of light fixture suppliers. With a team of the most hip design experts and engineering technologies Nora lights can add a modern, yet dependable edge to your home, job, or college dorm. Nora track lighting and recessed lighting are amongst the best available. So why not play it stylish and smart and go with Nora lighting?
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Nora Lighting NS-401QAT/20 4
Nora Lighting NS-401QAT/20 4" Air-Tight Line Voltage New Construction Housing
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