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The Norton Rixson 990M is a wall-mounted electromagnetic door holder designed to hold fire and smoke barrier doors open during normal building operation. When power is interrupted by a fire alarm system, smoke detector, or power failure, the electromagnetic hold-open releases and allows the door closer to return the door to the closed position.
Its compact low-profile design makes the 990M especially useful where there is minimal clearance between the open door and adjacent wall. Concealed wiring and a total projection of approximately 1-13/16 inches provide a clean appearance for commercial and institutional installations.
The standard 990M provides approximately 25 to 40 pounds of holding force, depending on the selected configuration.
The standard 990M is available in a tri-volt configuration supporting 120 VAC, 24 VAC/DC, and 12 VDC, providing flexibility across a wide variety of commercial fire alarm and building control installations.
The 990M operates on a fail-safe principle.
Once released, a properly installed door closer closes the door, helping restore the intended fire or smoke barrier. This makes electromagnetic door holders an important component in many fire-rated opening assemblies.
The 990M is designed for wall mounting and uses concealed wiring for a clean finished appearance. Norton Rixson specifies a 2 inch × 4 inch × 2-1/2 inch outlet box for mounting. The supporting wall must be properly reinforced and the outlet box securely fastened to withstand the forces generated by the door and holding magnet.
Its low-profile housing projects approximately 1-13/16 inches from the mounting surface, making it suitable for locations where space between the door and wall is limited.
Manufacturer: Norton Rixson / ASSA ABLOY
Model: 990M
Product Type: Electromagnetic Door Holder
Mounting: Wall Mounted
Wiring: Concealed
Standard Holding Force: 25–40 lb
Standard Voltage Configuration: 120 VAC / 24 VAC-DC / 12 VDC
Total Projection: 1-13/16 in.
Required Outlet Box: 2 in. × 4 in. × 2-1/2 in.
Operation: Fail-Safe Electromagnetic Hold Open
Suitable for:
| Weight | 5 lbs |
|---|---|
| Dimensions | 6 × 6 × 6 in |
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The Norton Rixson 990M is a wall-mounted electromagnetic door holder designed to hold fire and smoke barrier doors open during normal building operation. When power is interrupted by a fire alarm system, smoke detector, or power failure, the electromagnetic hold-open releases and allows the door closer to return the door to the closed position.
Its compact low-profile design makes the 990M especially useful where there is minimal clearance between the open door and adjacent wall. Concealed wiring and a total projection of approximately 1-13/16 inches provide a clean appearance for commercial and institutional installations.
The standard 990M provides approximately 25 to 40 pounds of holding force, depending on the selected configuration.
The standard 990M is available in a tri-volt configuration supporting 120 VAC, 24 VAC/DC, and 12 VDC, providing flexibility across a wide variety of commercial fire alarm and building control installations.
The 990M operates on a fail-safe principle.
Once released, a properly installed door closer closes the door, helping restore the intended fire or smoke barrier. This makes electromagnetic door holders an important component in many fire-rated opening assemblies.
The 990M is designed for wall mounting and uses concealed wiring for a clean finished appearance. Norton Rixson specifies a 2 inch × 4 inch × 2-1/2 inch outlet box for mounting. The supporting wall must be properly reinforced and the outlet box securely fastened to withstand the forces generated by the door and holding magnet.
Its low-profile housing projects approximately 1-13/16 inches from the mounting surface, making it suitable for locations where space between the door and wall is limited.
Manufacturer: Norton Rixson / ASSA ABLOY
Model: 990M
Product Type: Electromagnetic Door Holder
Mounting: Wall Mounted
Wiring: Concealed
Standard Holding Force: 25–40 lb
Standard Voltage Configuration: 120 VAC / 24 VAC-DC / 12 VDC
Total Projection: 1-13/16 in.
Required Outlet Box: 2 in. × 4 in. × 2-1/2 in.
Operation: Fail-Safe Electromagnetic Hold Open
Suitable for:
| Weight | 5 lbs |
|---|---|
| Dimensions | 6 × 6 × 6 in |
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