Altronix MAXIMAL75FEV Dual-Output 220VAC Hardwired Power Supply
Overview
The Altronix MAXIMAL75FEV is a commercial-grade, dual-output power supply engineered for large-scale security installations where 220VAC input is the facility standard and high sustained current draw across multiple devices is non-negotiable. Housed in a substantial 26" x 19" x 6.25" metal enclosure with battery backup capacity for four 12AH batteries, the MAXIMAL75FEV is built for enterprise and industrial deployments — not branch-office installs. If you're commissioning a multi-camera surveillance array, a large access control panel network, or a combined security system in a manufacturing or warehouse environment running on 220VAC mains, this unit deserves a close look.
Altronix has long been a fixture in professional security power distribution, and the Altronix power supply line reflects that focus on hardwired, rack-ready infrastructure. The MAXIMAL75FEV fits squarely within the commercial power supply category for integrators who need reliable, high-capacity DC output from a single enclosure.
Key Features
- Dual Independent 12VDC and 24VDC Outputs: Each output rail delivers up to 10 amps simultaneously — 20A total available DC — letting you power mixed device environments (cameras, readers, lock hardware) from a single unit without cross-rail interference. Eliminating a second supply reduces cabinet clutter and potential single-point failure from mismatched hardware.
- 220VAC Input with Wide Range Tolerance: The 198VAC–256VAC input window accommodates real-world voltage fluctuations on 220V circuits, so browndown conditions in industrial facilities won't take your system offline or trigger nuisance resets. The 5A/250V input fuse provides overcurrent protection at the mains level.
- 50/60Hz Frequency Compatibility: Dual-frequency support means this unit deploys in both 50Hz and 60Hz electrical environments — relevant for facilities with international equipment, co-located generators, or non-standard grid feeds.
- 4.8A Input Current Draw at 1,056VA System Input: Knowing the supply draws 4.8A at 220VAC (1,056VA) lets your electrical team correctly size the dedicated circuit breaker and confirm the panel has available capacity before installation day — no surprises on commissioning.
- 1A Auxiliary Output: A separate 1A auxiliary rail supports smaller ancillary devices — door contacts, sensors, or control relays — without pulling from your main 10A rails. Keeps primary device power budgets clean and prevents nuisance voltage sag on main outputs.
- Battery Backup Ready — Four 12AH Batteries: The enclosure accommodates four 12AH batteries with a 1.54A max charge current and a 15A/32V battery fuse, giving you genuine standby power for extended outages. Four 12AH batteries at 12VDC provides substantial runtime for camera and access control loads — calculate your specific runtime against your actual load profile before spec'ing battery count.
- 184.26 BTU/Hr. Heat Dissipation: At full load the unit generates 184.26 BTU/hr. — confirm your enclosure or server room has adequate airflow or HVAC capacity to handle that thermal output continuously, particularly in sealed utility closets or in warm climates where ambient temps approach the 49°C operating ceiling.
- Rugged Enclosure, 32.3 lbs. Installed Weight: The 26" x 19" x 6.25" enclosure is sized for wall-mount or rack-adjacent installation. At 32.3 lbs. (39.45 lbs. shipping weight), plan for two-person mounting and verify your wall substrate or rack shelf rating before install.
Integration & Compatibility
The MAXIMAL75FEV is designed for integration into professional access control systems and multi-camera surveillance infrastructure where 220VAC mains power is present. The dual-voltage output (12VDC and 24VDC) directly addresses the mixed-voltage requirements common in hybrid camera-and-access-control deployments: most IP cameras and PoE injectors operate on 12VDC auxiliary inputs, while many electric strikes, magnetic locks, and panel hardware run on 24VDC. Pairing this supply with a network video recorder or access control panel consolidates your DC power distribution into one managed enclosure with battery backup. Consult your specific device current specifications against the 10A per-rail maximum before finalizing load assignments — margin is good practice on hardwired security infrastructure.
For installations where a power supply selection guide would help right-size the unit to your load count and standby requirements, review your device current draws before committing to a single supply versus distributed supplies per zone.
Frequently Asked Questions
Q: What is the input voltage range for the MAXIMAL75FEV?
A: The MAXIMAL75FEV accepts 220VAC input with a tolerance range of 198VAC to 256VAC at 50 or 60Hz. It is not designed for 110/120VAC circuits — confirm your facility runs 220VAC mains before specifying this unit.
Q: What DC output voltages and currents does the MAXIMAL75FEV provide?
A: The MAXIMAL75FEV provides two independent output rails: 12VDC at up to 10A and 24VDC at up to 10A, plus a 1A auxiliary output. Total maximum DC output across both main rails is 20A.
Q: How many batteries can the MAXIMAL75FEV enclosure hold, and what size?
A: The enclosure accommodates four 12AH batteries. The maximum battery charge current is 1.54A, and the battery fuse is rated 15A/32V. Batteries are not included — source sealed lead-acid batteries separately to match the 12AH rating.
Q: What are the physical dimensions and weight of the MAXIMAL75FEV?
A: The enclosure measures 26" x 19" x 6.25" and weighs 32.3 lbs. installed. Shipping weight is 39.45 lbs. Plan for two-person installation and verify your mounting surface load rating before hanging the unit.
Q: What is the operating temperature range for the MAXIMAL75FEV?
A: The MAXIMAL75FEV is rated for operation from 0°C to 49°C (32°F to 120°F). It is not rated for outdoor or uncontrolled-ambient installation — deploy in a conditioned or ventilated interior space.
Q: What is the heat output of the MAXIMAL75FEV at full load?
A: At full load the MAXIMAL75FEV dissipates 184.26 BTU/hr. Verify your equipment room or closet has sufficient ventilation or HVAC capacity to handle this thermal load continuously, especially in warm climates or sealed utility spaces.
The MAXIMAL75FEV is one of those supplies that only makes sense for a specific installation profile — 220VAC mains, high device count, mixed 12V and 24V loads, and a need for onboard battery backup — but when that profile fits, it fits well. The dual 10A rails give you 20A of headroom in a single enclosure, and the 198–256VAC tolerance is genuinely useful in industrial environments where mains voltage isn't always textbook clean.
Technical Highlights:
- Dual 10A Output Rails: Independent 12VDC and 24VDC outputs at 10A each let you segregate camera power (12V) from door hardware (24V) without cross-loading — cleaner fault isolation if a device rail trips.
- 1,056VA System Input / 4.8A Draw: At 4.8A from a 220VAC feed, your electrician has a concrete number for circuit sizing. A 15A dedicated breaker gives comfortable margin; don't share this circuit with non-security loads.
- Four 12AH Battery Capacity with 1.54A Charge Current: The 1.54A charge rate is conservative by design — slower charge extends battery cycle life in standby applications. Size your runtime expectations against your actual load before assuming four 12AH batteries will cover a full shift outage.
Deployment Considerations:
- At 32.3 lbs. and 26" x 19" x 6.25", this is a two-person wall-mount job. Pre-drill to studs or use appropriate toggle anchors rated well above the installed weight — add battery weight when fully loaded.
- The 49°C upper operating limit sounds comfortable, but a sealed utility closet running camera and compute loads can exceed that ambient on a summer afternoon. Budget for ventilation or confirm HVAC capacity handles the unit's 184.26 BTU/hr. continuously.
This supply is the right specification for a large manufacturing facility or warehouse security overhaul running 220VAC infrastructure — specifically where you need to consolidate 12V camera power and 24V lock/reader power into a single battery-backed distribution point rather than running two separate supplies per zone.
