Norton Rixson 994M Wall Mounted Electromagnetic Door Holder with Adjustable Armature and Tri-Volt Operation
Professional Fire-Rated Door Control Solution
The Norton Rixson 994M electromagnetic door holder delivers reliable fire-rated door control with wall-mounted installation and adjustable armature design. This Grade 1 certified unit features tri-volt operation (120VAC, 24VAC/DC, 12VDC) with 25-40 lbs. holding force standard, expandable to 50-55 lbs. with voltage specification. The concealed wiring design and 3-3/4" total projection provide clean installation aesthetics while the adjustable armature allows rotation up and down, back and forth for optimal door alignment on solid wood doors.
Professional Features & Benefits
- Adjustable Armature Design: Rotation up and down, back and forth for precise door alignment and optimal holding performance in various installation conditions.
- Tri-Volt Operation: Standard 120VAC, 24VAC/DC, 12VDC compatibility provides flexible integration with existing fire alarm and access control systems.
- Variable Holding Force: 25-40 lbs. standard holding force with option for 50-55 lbs. when voltage is specified for heavy-duty applications.
- Concealed Wiring Installation: Clean professional appearance with 3-3/4" total projection and hidden wire routing through wall-mounted design.
- Fail-Safe Operation: Power failure automatically releases door to close, ensuring fire safety compliance and emergency egress functionality.
- Grade 1 Certification: ANSI/BHMA A156.15 Grade 1 rating and UL-cUL fire-rated up to 3 hours for demanding commercial applications.
- Flexible Configuration: Can be used without adjustment piece as model 997M, and requires 2" x 4" x 2-1/2" outlet box with proper wall reinforcement.
- Manufacturer Warranty: 2-year limited warranty for added confidence and protection in commercial installations.
Technical Specifications
- ANSI/BHMA: ANSI/BHMA A156.15, Grade 1
- Application: Commercial Doors
- Commercial/Residential: Commercial
- Department: Door Hardware
- Door Hand Direction: Non-Handed
- Electronic: Yes
- Grade: Grade 1
- Mounting Method: Wall
- Product Category: Door Controls
- Product Finish: Aluminum
- Product Group: Door Controls
- Product Subgroup: Electromagnetic Door Holder / Releases
- Product Type: Electromagnetic Door Holder / Releases
- Product Voltage: 120VAC, 24VAC/DC, 12VDC
- Subcategory: Electromechanical Closers & Holders
- Warranty: 2 Year Limited
- Wiring: Concealed
Installation & Operation
- Verify electrical requirements match available power supply. Confirm voltage (120VAC, 24VAC/DC, or 12VDC) and current capacity before proceeding.
- Disconnect power supply before beginning installation. Follow all applicable electrical codes and safety procedures.
- Mount the unit in the specified location ensuring adequate clearance for wiring access, ventilation, and future service requirements.
- Route and connect wiring according to manufacturer wiring diagrams. Use appropriate wire gauge and connectors for the application.
- Configure operational settings including fail-safe operation per application requirements.
- Restore power and test all functions including normal operation, alarm/alert functions, and integration with connected systems.
- Complete final inspection and document settings. Refer to manufacturer documentation for complete wiring diagrams, programming instructions, and troubleshooting.
Professional Applications
- Commercial Building Fire Safety Systems
- Educational Facility Emergency Egress
- Healthcare Institution Fire Door Control
- Retail Establishment Safety Compliance
- Industrial Facility Fire Protection
- Government and Municipal Building Safety
- Multi-Tenant Residential Fire Systems
Why Choose Norton Rixson Quality?
Norton Rixson electromagnetic door holders deliver professional-grade reliability with Grade 1 ANSI/BHMA certification and UL-cUL fire rating up to 3 hours. The 2-year limited warranty and fail-safe operation provide confidence in critical fire safety applications. Engineered for demanding commercial applications where dependable fire door control and emergency egress performance is essential.
Manufacturer Resources
Product Specs
- Condition:
- New
- Grade:
- Grade 1
- Warranty:
- 2 Year Limited
- ANSI/BHMA:
- ANSI/BHMA A156.15, Grade 1
- Product Group:
- Door Controls
- Product Subgroup:
- Electromagnetic Door Holder / Releases
- Product Type:
- Electromagnetic Door Closers
- Subcategory:
- Electromechanical Closers & Holders
- Commercial/Residential:
- Commercial
- Electronic:
- Yes
- Application:
- Commercial Doors
- Wiring:
- Concealed
- Product Voltage:
- 120VAC, 24VAC/DC, 12VDC
- Product Finish:
- Aluminum
- Door Hand Direction:
- Non-Handed
- Mounting Method:
- Wall
- Product Category:
- Door Controls
- Department:
- Door Hardware