Altronix T3KAK3316D Integrated Access Control Power Supply and Distribution Enclosure

Overview

The Altronix T3KAK3316D is a fully integrated access control and surveillance power platform combining a selectable 12VDC/24VDC power supply, an eight-output PTC access power controller, a 16VAC power distribution module, and a 175VA transformer — all pre-assembled inside a 16-gauge galvanized steel enclosure rated for up to four 12AH batteries. If you're wiring a mid-to-large access control installation and want to reduce field assembly time while keeping everything neatly supervised and UL-documentable, the T3KAK3316D packages what would otherwise be four separate panel components into a single lockable cabinet.

This is not a simple power supply. The T3KAK3316D is a complete sub-system: the power supply charges batteries, the access power controller distributes power to door hardware with independent PTC protection on each output, the distribution module feeds AC-powered devices, and the transformer steps 115VAC mains down to 16VAC for the rest of the system. Explore the full Altronix power and access control line for companion sub-assemblies and expanders that extend this platform further.

Key Features

• Selectable 12VDC or 24VDC Output at 6A Continuous: A single unit supports either 12V or 24V door hardware — lock in the voltage at commissioning and you're not committed to a specific hardware generation. 6A continuous max means you have real headroom for electric strikes, maglocks, and reader power running simultaneously without throttling.
• Eight Independently PTC-Protected Access Power Outputs at 2.5A Each: Each output is individually overcurrent-protected via PTC resettable fuse. A shorted wire on one door circuit doesn't cascade — the other seven outputs stay live. This is the architecture access control installers need when a single short-circuit fault can't be allowed to take down a secured perimeter.
• Battery Capacity for Up to Four 12VDC/12AH Batteries: The enclosure physically accommodates four sealed lead-acid or gel-type 12AH batteries, and the charger is rated for 12AH/12VDC (two within the enclosure). That's meaningful standby time for installations where power outages must not unlock controlled doors — calculate your standby load against the 12AH/12VDC capacity to confirm coverage before spec'ing the battery count.
• 16VAC Power Distribution with Four PTC Outputs at 2.0A Each: The integrated distribution module delivers 16VAC across four protected outputs, handling door controllers, proximity readers, or other AC-rated devices on the same backplane without requiring a separate distribution panel. Each output is PTC-protected at 2.0A max, consistent with the overall resettable-fuse philosophy of the platform.
• 175VA / 16VAC Transformer with 115VAC Input: The on-board transformer handles the AC conversion at 175VA — sufficient for the distribution module and system housekeeping draws. Input is standard 115VAC / 50-60Hz, no special wiring or phasing required in North American installations. The 1.6A supply current draw keeps this well within a standard 20A branch circuit alongside other panel loads.
• AC Failure and Battery Supervision with Form