Altronix T2RM7F8SDQ 24VDC 10A 2U Rack-Mount Power Supply
Overview
The Altronix T2RM7F8SDQ is a 2U rack-mount power supply designed for commercial security and access control installations that demand clean, reliable 24VDC power in a structured rack environment. Delivering 10A of continuous output from a 120VAC/60Hz input, this unit fits rack depths from 42" to 48" — covering the range of standard 2-post and 4-post telecom and IT enclosures you'll encounter on most commercial projects. If your deployment centers on centralized power distribution for door controllers, readers, or ancillary surveillance devices, the T2RM7F8SDQ gives you a single, auditable power source in a manageable rack footprint. Browse the full Altronix power and access control line for compatible modules and enclosures.
Key Features
- 24VDC / 10A Continuous Output: A 10-amp rail at 24VDC supports multiple access control panels, door strikes, or auxiliary devices simultaneously — enough headroom for mid-sized installations without stacking multiple supplies or oversizing to a larger chassis.
- 120VAC Input at 4.5A Draw: Pulling only 4.5A from a standard 120VAC/60Hz circuit, the T2RM7F8SDQ fits on any dedicated 15A or 20A breaker without monopolizing the panel. No special wiring or step-down transformer required in North American installations.
- 2U Rack-Mount Form Factor (3.25" x 19.0" x 33.1"): A true 2U profile occupies minimal vertical real estate in a rack, leaving room for controllers, patch panels, and UPS units in a single cabinet — cleaner than wall-mount supplies scattered across a headend room.
- Fits 42" to 48" Rack Depths: The 33.1" chassis depth is designed for deep telecom-style racks (42"–48"), so it mounts flush without improvised shelf extensions. Verify your rack depth before ordering — this unit is not suited for shallow 24" or 30" network enclosures.
- Module Outputs at 12VDC / 24VDC, 6A: Onboard module outputs provide either 12VDC or 24VDC at 6A, giving you flexibility to power mixed-voltage device mixes — for instance, 12VDC IR illuminators alongside 24VDC door hardware — from a single chassis without a separate converter.
- Sealed Lead Acid or Gel Battery Compatibility: The T2RM7F8SDQ supports sealed lead acid or gel-type batteries for standby backup, critical for access control systems where a mains outage must not open or lock doors unintentionally. Battery type and capacity selection should be sized to your hold-up time requirement.
- Steel Enclosure, Black Powder Coat: The all-steel chassis with black powder-coat finish holds up in rack environments where plastic housings warp under heat cycles or take mechanical damage during maintenance. At 40.5 lb, the unit is substantial — plan rack weight budgets accordingly and use proper rail kits.
- CE Listed: CE European Conformity listing supports deployments in EU-governed facilities or multinational projects where CE marking is a procurement requirement.
- Operating Range 0°C to 49°C: Rated for ambient temperatures up to 49°C (120°F), the supply tolerates warm equipment rooms and closets that haven't been cooled to data-center standards — a realistic condition in commercial buildings where the IDF closet doubles as a storage room.
Integration & Compatibility
The T2RM7F8SDQ is designed to integrate with access control infrastructure that runs on 24VDC — door controllers, electromagnetic locks, electric strikes, and request-to-exit devices are the primary load targets. The dual-voltage module outputs (12VDC / 24VDC at 6A each) allow you to serve mixed-device environments from a single power source, reducing the number of discrete supplies that need to be monitored and maintained. For installations using battery backup, pair with appropriately rated sealed lead acid or gel batteries sized to your required standby duration. For larger multi-door deployments, evaluate Altronix's broader rack-mount and modular power distribution ecosystem to determine whether additional modules or a higher-amperage chassis is warranted. When planning your overall rack layout, consider power supply load calculations early — the 10A output is a hard ceiling, and inrush current from solenoid-based locks can briefly exceed steady-state draw figures. See also Altronix-compatible access control controllers for matched system design. A PoE and power planning guide can help you model load distribution across your rack before you commission the system.
Frequently Asked Questions
Q: What input voltage does the T2RM7F8SDQ require?
A: The T2RM7F8SDQ requires 120VAC at 60Hz, drawing 4.5A. It is designed for standard North American mains wiring and does not support 240VAC or 50Hz input without modification.
Q: What battery types are compatible with the T2RM7F8SDQ for backup power?
A: The unit supports sealed lead acid (SLA) and gel-type batteries. Battery capacity should be selected based on your required standby hold-up time and total connected load — the supply does not specify a battery size, so sizing is the integrator's responsibility.
Q: Will the T2RM7F8SDQ fit in a standard 24" or 30" deep rack?
A: No. The chassis is 33.1" deep and is rated for rack depths of 42" to 48". It will not mount properly in shallower network or AV rack enclosures.
Q: What are the module output voltages on the T2RM7F8SDQ?
A: Module outputs are selectable at 12VDC or 24VDC, rated at 6A per module. This allows mixed-voltage device loads to be served from a single chassis.
Q: What certifications does the T2RM7F8SDQ carry?
A: The T2RM7F8SDQ carries CE European Conformity listing. No additional agency certifications (UL, FCC) are referenced in available product documentation.
Q: What is the operating temperature range for the T2RM7F8SDQ?
A: Operating temperature is rated 0°C to 49°C (32°F to 120°F), with storage rated from -20°C to 70°C. The unit is suited for typical commercial equipment room conditions but should not be installed in unventilated enclosures where ambient exceeds 49°C.
The T2RM7F8SDQ is one of those units I consistently specify for mid-sized commercial access control headends where the integrator wants centralized, rack-native power without running a separate wall-mount supply for every door cluster. The 10A / 24VDC output rail with 12VDC/24VDC module outputs at 6A is the practical reason — you can serve a mixed-voltage load (24V mag-locks plus 12V ancillary devices) from a single 2U chassis, which simplifies both the initial install and every service visit after it.
Technical Highlights:
- 10A / 24VDC Main Output: Enough continuous current for 6–10 door strikes depending on lock type and duty cycle — plan your load schedule before commission, since this is a hard ceiling with no overcurrent headroom beyond it.
- 2U / 42"–48" Rack Compatibility: The 33.1" chassis depth is matched to deep telecom racks, not IT-standard 2-post open frames. If your headend uses 42" 4-post racks, this drops in cleanly; if it uses a 24" AV rack, it won't fit.
- CE Listing: For projects in EU-regulated facilities or those with multinational compliance requirements, the CE mark is a procurement checkbox — confirmed for this SKU.
Deployment Considerations:
- At 40.5 lb, the T2RM7F8SDQ requires proper rack rail support — do not slide-mount this on thin clip-in rails designed for 1U network gear. Use heavy-duty rails rated for the weight, and verify your rack's total weight capacity before populating additional equipment below it.
- The battery backup path supports SLA or gel cells, but the supply does not dictate capacity — you must calculate hold-up time based on your full connected load at 24VDC and select batteries accordingly. Undersized batteries are the most common commissioning miss on installs like this.
This unit is a strong fit for commercial office or campus access control headends where a 42"–48" deep rack is already in place, the door count runs 6–12 doors off a single power source, and the integrator wants a CE-listed, steel-chassis supply that won't need to be replaced when the building adds a second shift.
