Altronix T3INH77XK1D 8-Door Access Control Power Enclosure
Overview
The Altronix T3INH77XK1D is a large-format steel power and access control enclosure designed for multi-door installations where you need organized, protected housing for Altronix and Mercury power supply and PoE equipment across up to eight doors. Built from 16 AWG powder-coated steel with a fused power supply configuration and extensive knockout options, this enclosure is the structural backbone of a serious commercial access control deployment — not a temporary fix or a stripped-down box. If you're commissioning a mid-size facility with multiple entry points, the T3INH77XK1D is built to hold the hardware that keeps them running.
Key Features
- 8-Door Capacity: Houses power and PoE equipment to support up to eight access-controlled doors from a single enclosure. Centralizing your hardware in one location simplifies troubleshooting, reduces cable runs, and makes future expansion or hardware swaps significantly faster than distributed installs.
- Fused Power Supply Configuration: Each circuit is individually fused, meaning a fault on one door's hardware doesn't cascade and kill adjacent doors. In a commercial lobby or multi-tenant building, this fault isolation is the difference between one door going down and eight going down simultaneously.
- 16 AWG Powder-Coated Steel Construction: The heavier-gauge steel resists flex and physical tampering better than thin-wall enclosures. The powder coat is durable enough for mechanical rooms and utility closets where paint-over-sheet-metal boxes develop rust within a year or two.
- Battery Backup Support — Up to Four 12VDC/12AH Batteries: The enclosure accommodates up to four 12VDC/12AH batteries, giving you meaningful UPS capacity within the same housing. In a building where power interruptions are a real risk, keeping your access control hardware live through a multi-hour outage without a separate battery cabinet matters.
- Cam Lock and Tamper Switch Included: The cam lock deters casual access to the enclosure. The tamper switch is the more operationally important feature — it triggers an alert if the enclosure is opened without authorization, which is a hard requirement in many enterprise and government security standards.
- Extensive Knockout Configuration: Sixteen pre-defined knockouts across three profiles — one single 2.415-inch diameter, two double (1.95-inch and 1.5-inch paired), and thirteen double (1.115-inch and 1.362-inch paired) — give installers real flexibility in routing conduit and cable without field-fabricating penetrations. Less improvisation in the field means cleaner installs and faster inspections.
- Mounting Hardware Included: Ships with mounting hardware, so you're not hunting for the right fasteners on install day. The enclosure is designed for wall mounting in IDF closets, electrical rooms, or dedicated security equipment spaces.
Integration and Compatibility
The T3INH77XK1D is purpose-built for Altronix and Mercury access control power and PoE equipment, making it the natural enclosure choice when you're deploying Altronix LINQ or LP series power supplies alongside Mercury intelligent controllers. The eight-door scope aligns directly with Mercury's EP series board capacity, so the enclosure and the controller complement each other without dead space or tight fits. If your project involves integrating with an enterprise access control system via Mercury hardware — Lenel, Software House, Genetec, or similar platforms that use Mercury OEM boards — this enclosure is sized and configured for exactly that use case. The tamper switch output can be wired into the access control panel as a supervised alarm point, which most enterprise systems expect as standard practice.
For larger deployments requiring more than eight doors per enclosure location, plan your riser accordingly — multiple T3INH77XK1D enclosures can be distributed per floor or per zone in a larger facility. Pair with appropriate power supply and PoE hardware from the Altronix catalog to complete the assembly.
Frequently Asked Questions
Q: How many batteries does the T3INH77XK1D support, and what size?
A: The T3INH77XK1D supports up to four 12VDC/12AH batteries housed within the enclosure, providing backup power capacity without requiring a separate battery cabinet.
Q: Does the T3INH77XK1D include a tamper switch?
A: Yes. The enclosure ships with a tamper switch included. It can be wired as a supervised alarm point into your access control panel to generate an alert if the enclosure is opened without authorization.
Q: What type of lock does the T3INH77XK1D use?
A: The enclosure comes with a cam lock for physical access control to the enclosure door.
Q: What knockout configurations are available on the T3INH77XK1D?
A: The enclosure provides sixteen total knockouts: one single 2.415-inch diameter, two double knockouts (1.95-inch and 1.5-inch paired), and thirteen double knockouts (1.115-inch and 1.362-inch paired), covering most standard conduit and cable entry needs.
Q: What gauge steel is the T3INH77XK1D made from?
A: The T3INH77XK1D is constructed from 16 AWG powder-coated steel, providing a rigid, corrosion-resistant housing suitable for mechanical rooms and equipment closets.
Q: What access control hardware is the T3INH77XK1D designed to work with?
A: The enclosure is designed for Altronix and Mercury access control power supply and PoE equipment, making it a natural fit for Mercury-based enterprise access control deployments on platforms such as Lenel, Software House, or Genetec.
The T3INH77XK1D is an enclosure I reach for when an eight-door Mercury-based deployment needs everything in one properly protected location. The 16 AWG powder-coated steel isn't cosmetic — it's meaningful rigidity in a mechanical room where thin-wall boxes get dented by the first HVAC tech who brushes past, and the powder coat holds up where painted steel corrodes within 18 months.
Technical Highlights:
- Four-Battery Capacity (12VDC/12AH each): Up to 48AH of internal backup power without a secondary cabinet — meaningful runtime for a multi-door site during an extended outage, and keeps your access control panel live without a separate UPS on the rack.
- Fused Power Supply Architecture: Per-circuit fusing means a wiring fault or device failure on door 3 doesn't pull down doors 1 through 8. This is the fault isolation behavior that enterprise commissioning checklists actually test for.
- Sixteen Knockouts Across Three Diameter Profiles: The thirteen paired 1.115/1.362-inch knockouts alone cover most conduit runs you'll land from an IDF. Not having to field-punch in a tight mechanical room saves real time and keeps the install clean for the inspector walk-through.
Deployment Considerations:
- Wire the tamper switch as a supervised alarm point in your access control panel from day one — most enterprise security standards require it, and retrofitting it after commissioning is the kind of job no one wants to revisit.
- The enclosure accommodates up to four 12VDC/12AH batteries, but confirm your Altronix power supply model's charging capacity before populating all four positions — oversizing the battery bank against a charger that can't sustain it shortens battery life significantly.
This enclosure is the right call for a mid-size commercial facility deploying Mercury EP-series controllers with Altronix power on a platform like Lenel OnGuard or Software House C•CURE — where centralized, tamper-supervised hardware housing is a project spec, not an afterthought.
