Altronix T2ZK7F8D 8-Door Access Control Power Distribution Hub
Overview
The Altronix T2ZK7F8D is the integrated power and access control assembly at the heart of the TROVE2Z2 system — a pre-wired, UL294-listed enclosure that consolidates a 24VDC power supply, battery backup, voltage regulator, access controller, and distribution module into a single 27.25" x 21.5" x 6.5" cabinet. If you're commissioning an 8-door access control deployment and want to avoid field-wiring a stack of discrete modules, this is the architecture to evaluate. Browse the full Altronix surveillance and access power line for compatible accessories and companion hardware.
Key Features
- 24VDC / 10A Continuous Output: The onboard power supply draws 120VAC/60Hz at 4.5A max and delivers a regulated 24VDC at 10A continuous — enough headroom to simultaneously power the access controller, distribution module, and connected door hardware without throttling under load.
- 8 PTC-Protected Outputs at 2.5A Each: Every door output is individually protected by a 2.5A PTC (polymeric positive temperature coefficient) resettable fuse. A shorted door lock or solenoid won't cascade — it trips its own circuit and resets automatically once the fault clears, which matters when you're troubleshooting a 4 AM door-open alarm.
- 12VDC / 6A Voltage Regulator: The integrated regulator steps down to 12VDC at 6A continuous for mixed-voltage door hardware or auxiliary devices. That eliminates a separate step-down supply on projects where readers, REX devices, or auxiliary panels run at 12V.
- Battery Backup for 12VDC/12AH: Onboard charging supports a 12VDC/12AH sealed lead-acid battery (not included) — standard for UL294 access control compliance. Size the battery to your required standby duration; 12AH typically covers 4–8 hours depending on lock count and type.
- Dual-Voltage Distribution Module: The distribution module accepts both 24VDC and 12VDC inputs and outputs either voltage at 2.5A PTC per channel — useful on mixed-hardware panels where some devices need 24V and others need 12V from the same enclosure.
- UL294 / cUL / CE Listed: UL294 is the governing standard for access control equipment — required by most AHJs and specified in virtually every commercial contract. The T2ZK7F8D ships with that listing in place, not as an afterthought. Explore our access control power solutions for additional listed hardware.
- 128 BTU/Hr. Heat Dissipation: At 128 BTU/Hr., the enclosure stays within normal data-room and IDF-closet thermal budgets. Confirm your cabinet environment stays between 0°C and 49°C — the operating range is tighter than some competing units that rate to 55°C.
- 54.3 lb. Enclosure: At 54.3 lb. and 27.25" tall, this is a two-person wall mount. Account for the 6.5" depth when planning clearance in shallow IDF closets. Pair with appropriate enclosure mounting hardware rated for the weight.
Integration and Compatibility
The T2ZK7F8D is designed for integration within Altronix TROVE system deployments — pre-wired sub-assemblies that reduce field labor on multi-door commercial installs. The 24VDC access controller input aligns with standard Lenel, Software House, and Mercury-based panels that expect 24VDC auxiliary power, though confirm your specific panel's power draw against the 10A supply budget. For deeper system planning, review our access control power planning guide.
Frequently Asked Questions
Q: What battery does the T2ZK7F8D support for backup?
A: The onboard charger is rated for a 12VDC / 12AH sealed lead-acid battery. The battery is not included with the unit.
Q: Is the T2ZK7F8D UL listed for access control?
A: Yes. The T2ZK7F8D carries UL294, cUL s319-05, and CE listings. UL294 is the standard for access control equipment and is required by most authorities having jurisdiction on commercial projects.
Q: How many doors can the T2ZK7F8D support?
A: The access controller section provides 8 outputs, each PTC-protected at 2.5A — supporting up to 8 doors from a single enclosure.
Q: What is the continuous output current of the power supply?
A: The power supply delivers 24VDC at 10A continuous. Input is 120VAC, 60Hz at 4.5A max.
Q: What are the enclosure dimensions and weight?
A: The enclosure measures 27.25" x 21.5" x 6.5" and weighs 54.3 lb. Plan for a two-person installation and verify clearance depth before mounting in shallow closets.
Q: Can the distribution module supply both 12V and 24V simultaneously?
A: Yes. The distribution module accepts 24VDC and 12VDC inputs and can output both voltages at 2.5A PTC per channel, supporting mixed-voltage door hardware from a single enclosure.
The T2ZK7F8D is one of those units that earns its place on commercial 8-door deployments specifically because of how Altronix pre-wires the sub-assemblies — the 10A continuous 24VDC supply, the 12VDC/6A regulator, and the dual-voltage distribution module are all integrated and tested before the enclosure ships. That matters when your commissioning window is tight.
Technical Highlights:
- 10A Continuous at 24VDC: Running 8 doors of electric strikes or maglocks simultaneously with a Mercury or Lenel panel is well within budget — most door hardware pulls 500mA to 1A at 24V, so you have real headroom before you hit the supply ceiling.
- Resettable PTC at Every Output: Each of the 8 outputs is individually PTC-protected at 2.5A. A wiring fault at door 5 doesn't take down doors 1–4 and 6–8. The circuit resets once the fault clears — no fuse replacement, no service call for a blown fuse at 2 AM.
- Dual-Voltage Distribution: The distribution module's ability to source both 12VDC and 24VDC at 2.5A per channel makes this a single-enclosure answer for mixed-hardware panels — card readers at 12V, strikes at 24V, no separate step-down brick required.
Deployment Considerations:
- At 54.3 lb. and 27.25" tall, this is not a solo install — budget two technicians and appropriate anchor hardware rated for the load. The 6.5" depth can conflict with shallow-depth IDF closets; measure before committing to a wall location.
- Operating temperature tops out at 49°C. Mechanical rooms, rooftop IDFs, and un-air-conditioned utility closets in summer climates need a thermal survey before installation — this unit will not tolerate the same ambient as some competing enclosures rated to 55°C.
For new construction or retrofit 8-door commercial access projects — office buildings, healthcare facilities, education campuses — where a pre-integrated, UL294-listed power hub reduces field labor and simplifies AHJ inspection, the T2ZK7F8D is the configuration to spec.
