Altronix MAXFIT7F16APS 16-Door Access Power Controller Kit

The Altronix MAXFIT7F16APS is a fully integrated 16-door access power controller kit housed in a BC750 enclosure, combining an eFlow104NB power supply/charger, two ACMS8 dual-input access power controllers, a VR6 voltage regulator, and a PD16W power distribution module into a single ready-to-install assembly. It converts 120VAC/60Hz input into sixteen fuse-protected 24VDC distribution outputs and sixteen independently controlled 12VDC or 24VDC relay outputs — everything an integrator needs to power a full 16-door access control installation without sourcing and wiring separate components.

Overview

Designed for commercial and enterprise access control deployments, the MAXFIT7F16APS handles the full power distribution chain for door hardware — mag locks, electric strikes, magnetic door holders, and access control system accessories. Relays are activated by an open collector sink or normally open dry trigger input from an access control system, keypad, push button, REX PIR, or similar device. The FACP interface supports emergency egress, alarm monitoring, and auxiliary device triggering, with individually selectable fire alarm disconnect on any or all 16 relayed outputs — a critical feature for life-safety-compliant installations.

Key Features

• Sixteen independently controlled relay outputs: Each of the 16 outputs on the two ACMS8 modules is individually selectable for Fail-Safe or Fail-Secure operation, dry Form C relay mode (28VAC or VDC @ 2.5A), auxiliary unswitched power, or any combination — giving you per-door control without additional hardware.
• Dual-voltage output architecture (12VDC and 24VDC): The VR6 regulator steps 24VDC from the eFlow104NB down to 12VDC @ 6A continuous, making both voltages available across the ACMS8 outputs. Each output is individually selectable between 12VDC and 24VDC, so you can mix door hardware with different voltage requirements on the same controller without secondary supplies.
• eFlow104NB power supply delivers 24VDC @ 10A with battery backup: The main supply supports up to four 12AH/12VDC sealed lead acid or gel batteries within the enclosure (batteries sold separately), with instantaneous failover on AC loss — access control hardware stays live during outages without a perceptible glitch.
• PD16W adds sixteen more fused 24VDC outputs: Rated 3.5A per output with individual 3.5A/250V fuses, the PD16W handles auxiliary 24VDC loads — readers, controllers, peripherals — on the same distribution rail, keeping the installation contained in one enclosure.
• Per-output fuse protection on every circuit: The ACMS8 relay outputs are protected by 3A/32V fuses; the PD16W outputs by 3.5A/250V fuses. A blown fuse on one circuit does not affect others, and individual outputs can be set to OFF for servicing without shutting down the panel.
• Selectable fire alarm disconnect on all 16 relay outputs: Any or all outputs can be configured to drop on FACP trigger for emergency egress compliance. The FACP interface supports both latching and non-latching modes with EOL 10K resistor supervision — a requirement on most commercial fire-integrated access systems.
• Supervised AC failure and battery status monitoring: The eFlow104NB provides Form C contacts for AC failure and battery fault conditions, and a low DC shutdown circuit prevents deep battery discharge by cutting DC output terminals when battery voltage drops below 70–75% — extending battery service life in installations with frequent or prolonged outages.
• UL294, UL603, and UL1481 listed; cUL listed to CSA/ULC standards: Agency listings cover access control power, burglary alarm power, and fire alarm power applications, making the MAXFIT7F16APS acceptable for AHJ review in multi-system installations across the US and Canada.
• Operates 0°C to 50°C (32°F to 122°F): Rated for indoor commercial environments including utility closets and server rooms that can see elevated ambient temperatures.

Integration & Compatibility

The MAXFIT7F16APS integrates with any access control system that provides open collector sink or normally open dry contact outputs for relay triggering — compatible with panel-based and IP-based ACS platforms without brand restriction. The FACP interface accepts standard fire alarm panel dry contacts. Battery backup uses standard sealed lead acid or gel type batteries (up to four 12AH/12VDC within the enclosure); larger 40AH or 65AH battery sets require a separate Altronix enclosure. The BC750 enclosure measures 16.5"W x 20.5"H x 6.25"D and weighs 28.1 lbs — size appropriately when planning closet or backbox installations. For broader access control power solutions or complementary hardware, the Altronix catalog includes enclosures, power supplies, and power distribution boards that extend this architecture. If you are sizing battery runtime, pair with an access control power supply reference or Altronix's NAC Power Extender Battery/Load Calculator. For installations requiring PoE-powered readers and IP controllers, consider adding a PoE switch for the IP side of the door stack.

Frequently Asked Questions

Q: How many doors can the MAXFIT7F16APS support?

A: The kit supports up to 16 doors. It provides sixteen independently controlled relay outputs across two ACMS8 modules, plus sixteen fused 24VDC auxiliary outputs via the PD16W for readers and peripherals.

Q: What battery type and capacity does the eFlow104NB support?

A: The eFlow104NB charges sealed lead acid or gel type batteries. Up to four 12AH/12VDC batteries fit within the BC750 enclosure. Larger 40AH or 65AH battery sets require a separate external enclosure. Batteries are sold separately.

Q: Can outputs be individually configured for Fail-Safe or Fail-Secure operation?

A: Yes. Each of the eight outputs per ACMS8 (sixteen total) is individually selectable for Fail-Safe or Fail-Secure power output, Form C relay mode, or auxiliary unswitched power — configurable per door without affecting other outputs.

Q: Is the MAXFIT7F16APS listed for fire alarm applications?

A: Yes. It carries UL1481 listing for fire alarm power, UL294 for access control power, and UL603 for burglary alarm power. The cUL listing covers CAN/ULC-S319-05 and ULC-S318-96 for Canadian installations.

Q: What voltage outputs are available and are they field-selectable?

A: The ACMS8 relay outputs are individually selectable for either 12VDC (from the VR6 regulator) or 24VDC (from the eFlow104NB) on a per-output basis. The PD16W outputs are fixed at 24VDC. This lets you mix 12V and 24V door hardware on the same panel.

Q: What are the enclosure dimensions and weight?

A: The BC750 enclosure is 16.5"W x 20.5"H x 6.25"D and weighs 28.1 lbs (shipping weight 34.1 lbs). Plan wall anchoring accordingly for the populated weight.