Altronix T2SSK7F8D 8-Door Access Control Power Distribution Kit

Overview

The Altronix T2SSK7F8D is a UL294-listed, 8-door access control power solution built for integrators who need a fully integrated, code-compliant power and distribution assembly in a single enclosure. It combines a 24VDC/10A power supply with an 8-output PTC-protected distribution module, a four-battery backup bank, and a Form C relay — everything needed to power and protect a mid-size access control deployment without field-assembling components from separate sources. The T2SSK7F8D is part of Altronix's TROVE S2 system, designed to pair directly with S2 Security access controllers and reduce panel-room complexity in commercial and enterprise installations. Browse the full Altronix access control power catalog for the complete TROVE lineup.

Key Features

• 24VDC at 10A Regulated Output: The power supply delivers a stable 24VDC regulated rail at up to 10A — enough headroom to simultaneously power an S2 controller, eight door devices, and ancillary hardware without voltage sag under load. Regulated output means lock release voltage stays consistent whether you have one door active or all eight.
• 8 PTC-Protected Distribution Outputs at 2.5A Each: Each of the eight outputs uses a polymeric positive temperature coefficient (PTC) resettable overcurrent device rated at 2.5A. If a shorted lock or wiring fault trips an output, it resets automatically once the fault clears — no blown fuses to replace in the field and no service call just to restore a single door.
• Quad 12VDC/12AH Battery Backup: Four 12VDC/12AH batteries (48AH total at 12V, or effectively a dual-series/parallel 24V bank) provide standby runtime to keep doors operational through a utility outage. This is a meaningful buffer for facilities where door access must remain functional independent of grid power — UL294 requires demonstrated standby capacity, and this assembly satisfies that requirement out of the box.
• Form C Relay at 28VAC/VDC, 2.5A: The onboard Form C relay gives you a dry-contact output you can use to signal the controller or an external monitoring system on power status changes — useful for supervisory integration in larger enterprise security architectures where alarm panels or BACnet/IP systems need to know when the access power plant changes state.
• Dual-Voltage Distribution Module (24VDC and 12VDC): The distribution module accepts both 24VDC and 12VDC inputs, which matters when your door hardware mix includes devices spec'd at different voltages. You are not forced to add a separate voltage conversion step for 12V readers or motion sensors.
• UL294, cUL S319-05, and CE Listed: UL294 is the North American standard for access control power supplies — this listing is required by most AHJ (Authority Having Jurisdiction) plan-check approvals and insurance carriers for commercial installations. The cUL S319-05 listing covers Canadian projects, and CE covers EU deployments, making the T2SSK7F8D usable across North American and European project scopes without sourcing a separate region-specific unit.
• Large-Format Steel Enclosure (27.25