Altronix T1MK1F4SDV 220VAC Power Supply with Battery Backup and PTC Protection
Overview
The Altronix T1MK1F4SDV is a 220VAC-input, 12VDC/24VDC selectable power supply with integrated battery standby designed for commercial surveillance and access control installations where international mains voltage is the site standard. It delivers 4A of continuous DC output with a 12VDC/7AH sealed lead-acid battery providing hold-over during outages — critical in facilities where camera or door-control downtime carries real operational or liability consequences.
Housed in a lockable steel enclosure measuring 18" × 14.5" × 4.62", the T1MK1F4SDV is purpose-built for wall-mounted head-end installations. Its CE European Conformity listing makes it a straightforward fit for projects subject to European electrical safety requirements, removing the compliance friction that generic power assemblies often introduce. If you're sourcing from the broader Altronix power and access control line, this unit fits squarely within their TROVE integrated distribution architecture.
Key Features
- 220VAC / 2.1A Input with 5A/250V Fuse Protection: Accepts the 220V mains standard used across Europe, the Middle East, and many international commercial sites — no step-down transformer required. The on-board 5A/250V fuse provides upstream fault protection, reducing the risk of damage to downstream load devices if a wiring fault occurs at commissioning.
- Selectable 12VDC or 24VDC Output at 4A Continuous: A single unit covers both 12VDC camera ecosystems and 24VDC access control hardware, reducing the number of SKUs an integrator needs to stock for mixed-technology head-end cabinets. At 4A continuous, you have headroom for four 1A loads or two 2A devices without approaching the rated ceiling.
- 12VDC / 7AH Battery Standby: The integrated 7 amp-hour battery provides meaningful standby capacity — at a 2A draw, expect roughly 3–3.5 hours of hold-over under ideal conditions. This is adequate for short outages in most commercial environments; sites with stricter UPS requirements should calculate their specific load-versus-runtime needs before specifying.
- Form C AC Fail and Battery Fail Outputs: Both supervisory outputs use Form C (normally open / normally closed / common) dry contacts. This means you can wire alarm notification to an existing panel or monitoring system without additional relay hardware — AC loss and battery fault conditions report independently to your BMS or access panel.
- CE European Conformity Listing: The CE mark confirms the unit has been evaluated against applicable EU directives. For projects in EU member states or CE-required export markets, this removes the compliance gap that unlisted power supplies create during commissioning inspections.
- Operating Range 0°C to 49°C: Suitable for conditioned equipment rooms and indoor security closets. The 49°C upper limit means this unit is not rated for unconditioned outdoor enclosures or high-heat mechanical rooms — factor that into placement decisions.
- Compact Steel Enclosure (18" × 14.5" × 4.62"): The shallow 4.62" depth keeps the unit manageable on a stud wall or inside a larger backplane cabinet without protruding into access aisles. At 16.23 lb., it's a one-person wall mount with standard hardware.
Integration and Compatibility
The T1MK1F4SDV is designed as a self-contained security power supply for camera and access control loads — it does not require proprietary controllers or a specific VMS. The dual-voltage output (12VDC or 24VDC) pairs with the majority of commercially available IP cameras, analog cameras, mag-locks, and electric strikes. The Form C supervisory outputs integrate directly with access control panels from most major manufacturers, allowing fault conditions to trigger alerts within your existing monitoring infrastructure without custom relay wiring.
For projects that require distributed power across multiple head-end locations, this unit works alongside PoE network switches supplying IP camera power on the data side, with the T1MK1F4SDV handling non-PoE analog cameras, intercoms, or electric hardware on a separate supervised circuit. Consult a security power planning guide to size battery standby and calculate load distribution before finalizing your head-end design.
Frequently Asked Questions
Q: What input voltage does the T1MK1F4SDV require?
A: The T1MK1F4SDV requires 220VAC input at 2.1A. It is intended for installations where 220V mains is the site standard — it is not a dual-voltage unit that accepts 110VAC.
Q: Can the T1MK1F4SDV output both 12VDC and 24VDC simultaneously?
A: The unit provides 12VDC and/or 24VDC at 4A continuous. Verify with Altronix documentation whether simultaneous dual-voltage output is supported or whether the unit is configured for one voltage at a time.
Q: What battery does the T1MK1F4SDV use, and how long will it last during a power outage?
A: The T1MK1F4SDV uses a 12VDC / 7AH sealed lead-acid battery. Runtime depends on the connected load — at a 2A draw, expect roughly 3–3.5 hours of standby under ideal conditions. Higher loads will reduce runtime proportionally.
Q: What are the Form C supervisory outputs used for?
A: The T1MK1F4SDV includes separate Form C (dry contact) outputs for AC fail and battery fail conditions. These connect to an access control panel or building management system to report power and battery fault events without additional relay hardware.
Q: Is the T1MK1F4SDV suitable for outdoor or high-temperature installations?
A: The unit is rated for 0°C to 49°C operating temperature, which suits conditioned indoor security rooms and equipment closets. It is not rated for unconditioned outdoor enclosures or high-heat mechanical spaces.
Q: Does the T1MK1F4SDV carry any agency certifications?
A: Yes — the T1MK1F4SDV carries CE European Conformity listing, making it appropriate for EU-market projects and CE-required export installations.
The T1MK1F4SDV sits in a specific niche that not every integrator thinks about until they're bidding an international project: a CE-listed, 220VAC-input power supply with integrated 7AH battery standby and supervised Form C fault outputs, packaged in a wall-mount steel enclosure. That combination in a single SKU saves real time during head-end assembly on EU-market surveillance builds.
Technical Highlights:
- Supervised Fault Outputs: Separate Form C dry contacts for AC fail and battery fail mean you get two independent alarm points — wired directly to a panel input — without sourcing a discrete relay module. On a 16-zone access panel, those two inputs are usually available and this integration is straightforward.
- 5A/250V Input Fuse: The upstream fuse at the mains input protects both the power supply and downstream loads from wiring faults. On retrofit projects where conduit runs are being reused, this is a meaningful backstop against unknown wiring conditions at the panel.
- 16.23 lb. / 18" × 14.5" × 4.62" Enclosure: The shallow depth is the practical spec here — 4.62" protrusion from the wall keeps the unit clear of equipment room access aisles and fits inside most surface-mount backplane cabinets without forcing a custom cutout.
Deployment Considerations:
- Confirm your site load does not exceed 4A continuous before wiring. If you're running four cameras at a nominal 0.8A each, you're at 3.2A — fine. Add a fifth device and you're at the rated ceiling with no margin. For larger camera counts, add a second supply rather than overloading a single unit.
- The 0°C to 49°C operating range is the hard constraint for placement. Mechanical rooms, rooftop enclosures, and uninsulated utility spaces frequently exceed 49°C in summer — install the T1MK1F4SDV only in climate-controlled spaces to avoid battery degradation and premature failure.
This unit is the right call for international facility projects — hotel properties, logistics hubs, or manufacturing sites operating on 220V mains — where CE compliance is a hard requirement and you need battery-backed, supervised DC power in a single head-end package rather than assembling separate components.
