Altronix T2MK5F8P 12VDC 8-Output Fused Power Distribution Unit
Overview
The Altronix T2MK5F8P is a centralized 12VDC power distribution system built for mid-to-large security installations where you need clean, individually protected power delivered to multiple devices from a single enclosure. Combining a 12VDC/10A regulated output with an 8-output fused distribution module (PD8UL), a battery charging circuit rated for 12AH standby batteries, and UL294 listing, this unit covers the core power architecture requirements of most commercial access control and IP camera deployments without requiring separate components wired together in the field.
The enclosure measures 27.25" x 21.5" x 6.5" — substantial enough to house cabling runs and ancillary equipment alongside the power hardware, which integrators will appreciate on jobs where panel space is at a premium. Explore the full Altronix power distribution catalog for companion devices and expansion modules that pair directly with this platform.
Key Features
- 12VDC @ 10A Regulated Output: A full 10A of regulated 12VDC is enough to drive a typical mix of door controllers, magnetic locks, and proximity readers simultaneously. Rather than wiring a separate power supply per device, the T2MK5F8P lets you centralize and monitor power from one location — reducing both installation time and the number of failure points to troubleshoot after commissioning.
- 8 Individually Fused Outputs (3.5A/250V each): Each of the eight outputs is protected by a discrete 3.5A/250V fuse via the integrated PD8UL distribution module. A fault or short on one circuit doesn't cascade to the rest of the system — you pull the blown fuse, swap a load, and the other seven outputs keep running. This is the right approach for mixed-device panels where a single failed device shouldn't take down a door group.
- Integrated Battery Charging (12VDC/12AH): The onboard charging circuit supports a 12VDC/12AH sealed lead-acid standby battery, providing local UPS-style backup without adding a separate charger module. For access control panels where fail-secure hardware must remain powered during a grid outage, this matters — check your authority-having-jurisdiction requirements against the supported battery capacity before specifying.
- 120VAC / 60Hz Input with 5A/250V Input Fuse: Standard 120VAC single-phase input means no special circuits or transformer requirements in most North American commercial facilities. The 5A/250V input fuse protects the supply-side without requiring a dedicated breaker panel — simplifying rough-in on retrofit projects.
- ACM8 Module Integration (12VDC Input/Output @ 10A, 10A/250V Fuse): The ACM8 access control module accepts 12VDC input and redistributes 12VDC at up to 10A across its output array, protected by a 10A/250V fuse. This allows the T2MK5F8P's primary supply to feed the ACM8 directly, building a two-tier distribution tree within a single enclosure — useful on larger door counts where per-device current allocation needs to be tightly managed.
- UL294 Listed, CAN/ULC-S319-05, CE: UL294 is the standard for access control power supplies — required by most AHJs for any commercial door hardware installation. The CAN/ULC-S319-05 listing extends coverage to Canadian projects without substituting a different product. CE marking supports EU/international deployment where required by the installation spec.
- 0°C to 49°C Operating Range: The rated operating window covers typical indoor commercial environments including IDF closets and utility rooms that run warm but not extreme. If your panel location exceeds 49°C — a mechanical room next to HVAC equipment, for example — verify ambient temperature before installation. Storage is rated to -20°C to 70°C, so shipping and warehousing in cold climates won't damage the unit.
- Large Enclosure (27.25" x 21.5" x 6.5"): The physical footprint gives you room to land and dress conduit runs, mount terminal blocks, and house a 12AH battery within the same enclosure. For integrators managing cable-dense panels, this is a practical advantage over compact supplies that force external cable management.
Integration & Compatibility
The T2MK5F8P is designed around the Altronix modular ecosystem. The integrated ACM8 module accepts 12VDC from the main supply and redistributes it across additional outputs — this two-tier architecture supports higher door counts within a single panel. The PD8UL provides the eight individually fused 12VDC circuits suitable for magnetic locks, electric strikes, proximity readers, and 12VDC-rated IP cameras. For system designers working on multi-door access control panels or combined video/access installations, pairing this unit with compatible surveillance power supplies and Altronix relay accessories keeps the installation within a consistent product family.
The UL294 and CAN/ULC-S319-05 listings make this unit directly specifiable on projects where listed power is a contract requirement — common on government facilities, healthcare sites, and any project where the AHJ pulls a permit. Verify current draw per output against the 3.5A per-fuse limit when specifying high-current locks or motorized hardware; the per-output fuse is the hard ceiling for each circuit.
Frequently Asked Questions
Q: What is the total output current available on the Altronix T2MK5F8P?
A: The T2MK5F8P provides 12VDC at a maximum of 10A total output current. The eight fused distribution outputs share this 10A budget, with each individual output fused at 3.5A/250V.
Q: What battery size does the T2MK5F8P support for standby backup?
A: The integrated charging circuit is rated for a 12VDC/12AH sealed lead-acid battery. This provides local UPS-style backup for connected access control hardware during power outages. The battery is not included — it must be sourced and installed separately within the enclosure.
Q: Is the T2MK5F8P UL listed for access control applications?
A: Yes. The T2MK5F8P carries UL294 listing, which is the standard for access control power supplies and is required by most authorities having jurisdiction (AHJs) on commercial door hardware installations. It also holds CAN/ULC-S319-05 listing for Canadian projects and CE marking.
Q: What is the input voltage requirement for the T2MK5F8P?
A: The unit requires 120VAC, 60Hz single-phase input — standard North American commercial power. The input is protected by a 5A/250V fuse.
Q: What is the operating temperature range for the T2MK5F8P?
A: The rated operating temperature is 0°C to 49°C (32°F to 120°F). It is intended for indoor, climate-controlled environments. Locations that consistently exceed 49°C ambient — such as certain mechanical rooms — should be evaluated before installation.
Q: How large is the T2MK5F8P enclosure and how much does it weigh?
A: The enclosure measures 27.25" x 21.5" x 6.5" and the unit weighs 39.6 lbs. This large footprint accommodates battery installation, cable management, and accessory modules within the same housing.
The T2MK5F8P is one of those units I reach for when a project needs a clean, single-enclosure answer to the question of centralized 12VDC power distribution with real standby backup. The 10A output budget, split across eight 3.5A-fused circuits via the PD8UL module, gives you enough headroom for a mixed-load panel of door controllers and readers without having to chain supplies or run separate chargers.
Technical Highlights:
- 8x 3.5A Fused Outputs: Per-circuit fusing at 3.5A/250V means a shorted electric strike or a failed reader doesn't pull down adjacent doors. You troubleshoot one circuit while the rest of the panel stays up — that matters during a live access control outage.
- 12VDC/12AH Battery Charging: The onboard charger supports a 12AH SLA battery, giving you meaningful runtime on a modest door count during a grid event. Size your battery against your load carefully — 10A total output means a 12AH battery under full load won't sustain hours of operation, but it covers the typical 4-hour AHJ requirement on partial loads.
- UL294 + CAN/ULC-S319-05 Listings: These aren't nice-to-haves — they're the spec requirements on virtually every permitted commercial access control job. Having both listings in a single unit means one SKU works across US and Canadian projects without substitution.
Deployment Considerations:
- The 27.25" x 21.5" x 6.5" enclosure is large — confirm available wall or rack space before ordering on retrofit jobs where panel real estate is constrained. At 39.6 lbs product weight, plan for two-person installation when mounting at height.
- The ACM8 module input is rated 12VDC with a 10A/250V fuse — verify that your upstream wiring to the ACM8 is sized for the full 10A to avoid nuisance trips on high-demand door counts.
This unit earns its place on multi-door commercial access control panels — healthcare facilities, education campuses, and government buildings where UL294 is a hard contract requirement and you need battery backup, per-circuit fault isolation, and enough output current to run a door group without a secondary supply.
