Altronix MAXFIT3F8APS 8-Output Distributed Power Supply and Relay Module
Overview
The Altronix MAXFIT3F8APS is a multi-output power distribution and relay module designed for commercial surveillance and access control installations that require both distributed DC power and relay-switched outputs from a single chassis. Drawing from 120VAC/60Hz mains, the MAXFIT3F8APS delivers selectable 12VDC or 24VDC across eight distributed outputs alongside eight relay outputs — giving integrators a consolidated power and switching backbone that eliminates the wiring sprawl of stacking single-output supplies. At 32.9 lbs in a 6.25 x 16.50 x 20.50 in form factor, this unit is sized for rack or cabinet installation in a dedicated head-end closet or IDF. Explore the full Altronix power products line for compatible enclosures and accessories.
Key Features
- Selectable 12VDC or 24VDC output: A single unit can serve both 12V cameras and 24V access control hardware without running separate supplies — critical when you have mixed device types in the same rack. Verify your device requirements before setting output voltage; 24V to a 12V-only camera will damage it.
- 8 distributed outputs: Eight independent DC output circuits let you home-run power to individual devices rather than daisy-chaining. Faulting one device or circuit doesn't collapse the entire distribution rail — a meaningful operational advantage in high-uptime environments. This pairs naturally with structured power distribution planning for multi-zone deployments.
- 8 relay outputs: Eight relay-switched outputs provide dry-contact or switched control capability alongside the DC distribution. This matters for door strike control, alarm notification devices, or any load that needs to be triggered independently of the primary DC rail.
- 120VAC / 60Hz input: Standard North American mains input means no step-down transformer or special circuit is required. Wire directly to a dedicated 20A branch circuit for adequate headroom across all eight output channels.
- 32.9 lb chassis, 6.25 x 16.50 x 20.50 in: The physical footprint requires planning — this is a substantial enclosure. At 20.50 inches deep, confirm rack or cabinet clearance before ordering. The weight also means proper rack support rails or a shelf mount, not just two-post ear mounting.
- Consolidated switching and power: Combining 8 DC distribution circuits and 8 relay outputs in a single chassis reduces head-end wiring complexity and the number of discrete components that need to be commissioned, labeled, and maintained. For access control panels managing multiple door strikes, this consolidated approach simplifies both initial installation and long-term troubleshooting.
Integration and Compatibility
The MAXFIT3F8APS is designed to integrate with Altronix's MAXFIT modular power platform, which is a common backbone in multi-door access control and hybrid surveillance/access deployments. The dual output voltage selection (12VDC / 24VDC) makes it compatible with a broad range of field devices: IP cameras, analog cameras, magnetic door locks, electric strikes, and notification appliances. When pairing with network video recorders or access control panels, confirm the aggregate current draw across all eight outputs does not exceed the rated capacity of the supply module installed in the chassis. The relay outputs are appropriate for interfacing with control panels that accept dry-contact inputs, making this a practical choice for integrated security systems where the power supply must also participate in the control logic.
Frequently Asked Questions
Q: What is the output voltage of the MAXFIT3F8APS?
A: The MAXFIT3F8APS provides selectable 12VDC or 24VDC output. The selection applies to the distributed output rail — confirm your field device requirements before commissioning.
Q: How many outputs does the MAXFIT3F8APS provide?
A: It provides 8 distributed DC outputs and 8 relay outputs, for a total of 16 output circuits in a single chassis.
Q: What is the input voltage for the MAXFIT3F8APS?
A: The unit requires 120VAC at 60Hz — standard North American mains. No step-down transformer is needed for US installations.
Q: What are the physical dimensions and weight of the MAXFIT3F8APS?
A: The MAXFIT3F8APS measures 6.25 x 16.50 x 20.50 inches and weighs 32.9 lbs. Verify rack depth clearance before installation — the 20.50-inch depth requires a deep cabinet or four-post rack.
Q: Can the MAXFIT3F8APS be used for both surveillance cameras and access control door strikes?
A: Yes. The selectable 12/24VDC output and combination of distributed plus relay outputs make it suitable for mixed surveillance and access control deployments, provided total load current stays within the supply module's rated capacity.
Q: Is the MAXFIT3F8APS part of the Altronix MAXFIT modular platform?
A: Yes. The MAXFIT3F8APS is part of Altronix's MAXFIT product family, designed for modular integration in commercial security installations.
The MAXFIT3F8APS earns its place in commercial head-ends where you're managing both camera power and door control from the same closet. The 8 distributed outputs at selectable 12VDC or 24VDC mean you can run a unified distribution chassis instead of stacking three or four single-rail supplies — and the co-located 8 relay outputs handle door strikes or alarm circuits without adding a separate relay board to the rack.
Technical Highlights:
- Dual voltage selection (12VDC / 24VDC): One chassis serves 12V IP cameras and 24V electric strikes simultaneously — set the rail to match the majority of your load, and handle outliers with inline converters if needed.
- 8 distributed + 8 relay outputs: Sixteen independently addressable circuits in a 20.50-inch-deep enclosure. Home-running each device to its own output circuit means a single device fault doesn't propagate — and troubleshooting stays localized.
- 32.9 lb chassis at 6.25 x 16.50 x 20.50 in: This is a full-depth unit. In a 24-inch-deep two-post rack it will not fit — specify a four-post or wall-mount cabinet with at least 22 inches of usable depth, and use proper shelf or rail support given the weight.
Deployment Considerations:
- Size your branch circuit appropriately — 120VAC/60Hz input on a chassis with 16 output circuits needs a dedicated 20A circuit with adequate service capacity; shared circuits with HVAC or lighting introduce voltage sag risk at night when lighting loads shift.
- The 20.50-inch depth is the spec most often missed at the cabinet-selection stage. Measure twice before ordering — a chassis that can't close the cabinet door is a job-site problem, not a return-shipping problem.
The MAXFIT3F8APS is the right call for mid-to-large commercial access control and surveillance installations — specifically multi-door facilities like office buildings, warehouses, or campus buildings where a single head-end closet must distribute power and relay control to 8 or more independently managed field circuits.
