Altronix MAXIMAL55FV 16-Output 220VAC Access Power Controller
Overview
The Altronix MAXIMAL55FV is a high-capacity access power controller engineered for international and export installations where 220VAC mains power is the standard. Housed in a full-size BC800 enclosure, it accepts 198–256VAC at 50/60Hz and delivers sixteen independently controlled 12VDC outputs — enough to drive an entire floor of mag locks, electric strikes, and door holders from a single, centrally managed panel. If you're deploying access control in facilities that run on 220VAC mains and need LinQ2 remote monitoring capability, this is the unit to evaluate first.
Explore the full Altronix power and access control catalog or browse our range of access control power supplies for additional options.
Key Features
- Dual 12VDC @ 9.3A Power Supplies: Two independent supplies deliver up to 9.3A each — meaning you have real headroom for 16 outputs without crowding your power budget. Each supply runs through its own ACM8 board, so a fault on one side doesn't cascade to the other.
- 16 Independently Controlled Outputs: Every output is individually fused at 2.5A and can be configured Fail-Safe or Fail-Secure independently. In a mixed-hardware installation (some strikes, some mag locks), this matters — you're not locked into one fail mode for the entire panel.
- Form 'C' Relay Option: All 16 outputs can be converted to dry-contact form 'C' relays rated at 5A/28VDC, making it straightforward to interface with third-party access control hardware that expects a relay closure rather than a power output.
- Fire Alarm Control Panel (FACP) Interface: The built-in FACP disconnect is individually selectable per output — latching or non-latching — and accepts NO/NC dry contact or polarity-reversal inputs from signaling circuits. In life-safety-integrated deployments, this eliminates the need for external shunt modules on each door.
- 16 Auxiliary Unswitched Outputs (2.5A each): These always-on outputs power readers, REX sensors, and keypads independently of the switched door outputs, keeping your peripheral devices live even during a relay state change.
- LinQ2 Ready: Designed for Altronix's LinQ2 remote monitoring platform, which lets you check AC/DC status, battery health, and output state remotely — useful in unmanned IDF closets or multi-site deployments where a truck roll to check panel health is not acceptable.
- Battery Backup (Batteries Sold Separately): Supports sealed lead acid or gel batteries up to 12AH/12VDC (four within enclosure) or 40–65AH in a separate enclosure. AC fail supervision triggers instantly on power loss — no relay chatter during switchover.
- NDAA, TAA, BAA, CE, and UL Listed: The MAXIMAL55FV carries both NDAA Section 889 and TAA/BAA compliance, which keeps it on the table for federal, government, and defense-adjacent projects that require domestic sourcing verification. See our access control systems section for compliant hardware pairings.
Integration & Compatibility
The MAXIMAL55FV accepts open-collector sink or normally open dry trigger inputs from virtually any access control panel, keypad, REX PIR, or push button. The BC800 enclosure (19"W × 26"H × 6.25"D, 33.4 lbs.) has sufficient internal real estate for cable management in high-density door installations. For access control panel pairings, confirm your ACS trigger output type (open collector vs. dry contact NO) before wiring — both are natively supported, in any combination across the 16 inputs. Review our access control power planning guide if you're sizing battery backup runtime for this unit.
Frequently Asked Questions
Q: Is the MAXIMAL55FV NDAA Section 889 compliant?
A: Yes. The MAXIMAL55FV carries NDAA, TAA, and BAA compliance, making it eligible for federal and government-related projects that require verified domestic sourcing.
Q: What is the input voltage range for the MAXIMAL55FV?
A: The unit accepts 220VAC with a working range of 198VAC to 256VAC at 50/60Hz, drawing 4.2A. It is not designed for standard 120VAC North American mains — verify your facility runs 220VAC before ordering.
Q: Can the outputs be mixed between Fail-Safe and Fail-Secure?
A: Yes. Each of the 16 outputs is independently configurable as Fail-Safe or Fail-Secure, and can also be converted to a dry form 'C' relay contact rated at 5A/28VDC. Any combination across the 16 outputs is supported.
Q: Does the MAXIMAL55FV support remote monitoring?
A: The unit is LinQ2 Ready, meaning it is compatible with Altronix's LinQ2 remote monitoring platform for AC/DC status, battery supervision, and output state visibility without requiring physical access to the panel.
Q: What battery sizes are supported, and are batteries included?
A: Batteries are sold separately. The enclosure supports up to four 12AH/12VDC sealed lead acid or gel batteries internally. Larger 40AH or 65AH batteries require a separate enclosure. AC fail triggers an instantaneous failover to battery with no delay.
Q: What are the physical dimensions and weight of the MAXIMAL55FV?
A: The BC800 enclosure measures 19"W × 26"H × 6.25"D and weighs 33.4 lbs. (40.7 lbs. shipping weight). Plan accordingly for wall-mount structural requirements.
The MAXIMAL55FV is the unit I'd specify for any 220VAC facility deployment where you need granular per-door power control at scale. Sixteen independently fused 12VDC outputs, each configurable Fail-Safe or Fail-Secure, means you can wire a mixed door environment — some mag locks, some strikes — without compromise. The dual 9.3A supplies give you real headroom, and LinQ2 readiness means your monitoring infrastructure can keep eyes on this panel without dispatching a technician every time you want an AC/battery status check.
Technical Highlights:
- Dual 9.3A Supplies: Each ACM8 board runs independently at up to 9.3A, so your 16-output load is split across two supply paths — a single supply fault won't take all 16 doors offline simultaneously.
- Per-Output FACP Disconnect: The fire alarm interface is individually selectable per output (latching or non-latching), which eliminates the need for external shunt relays at each door on life-safety-integrated projects — a real labor savings on a 16-door panel.
- NDAA/TAA/BAA Compliance: All three compliance marks are confirmed for this SKU, keeping it on the approved list for federal facilities, defense contractors, and public-sector customers with domestic sourcing mandates.
Deployment Considerations:
- Confirm your facility mains voltage before ordering — the MAXIMAL55FV operates on 198–256VAC exclusively. It will not run on a standard 120VAC North American circuit without a step-up transformer, which adds cost and a failure point.
- Batteries are not included and must be ordered separately; the BC800 enclosure holds up to four 12AH units internally. If your backup runtime calculation requires 40AH or larger, budget for a second enclosure alongside this panel.
This unit is best suited for international deployments, embassy or government facilities on 220VAC infrastructure, and North American industrial sites fed by 208–240VAC panels — anywhere you need centralized, remotely monitorable 16-door power distribution with life-safety integration built in.
