Altronix T2MK7F8DV 220VAC Power Supply with Battery Backup and 8 PTC Outputs
Overview
The Altronix T2MK7F8DV is a commercial-grade 220VAC power supply and battery charger designed for surveillance and access control installations where utility power is delivered at 220VAC and distributed loads require regulated 24VDC with individual circuit protection. With a 10A continuous output rating, an auxiliary 1A output, and eight individually PTC-protected distribution outputs rated at 2.5A each, the T2MK7F8DV gives integrators both the headroom to power multiple cameras or door controllers and the per-circuit protection that keeps a single shorted run from taking down the entire installation. The unit accepts a 12VDC/12AH battery for backup — a non-negotiable requirement in any deployment where momentary power interruptions cannot be tolerated.
This unit is housed in a lockable steel enclosure measuring 27.25" × 21.5" × 6.5", large enough to accommodate the battery alongside the electronics. Altronix builds these for working integrators who need a reliable, pre-wired distribution platform rather than a pile of individual transformers and fuses.
Key Features
- 220VAC Input, 24VDC/10A Output: Accepts 220VAC at 2.7A draw and delivers a stable 24VDC at up to 10A — sized for multi-camera or multi-reader runs on a single supply without risking voltage sag at the device end. Right for European-standard or international facilities where 220V is the building supply.
- Eight PTC-Protected Distribution Outputs at 2.5A Each: Individually self-resetting PTC (polymeric positive temperature coefficient) overcurrent devices on each output mean a wiring fault or device short on one run clears and resets without requiring a service call to swap a fuse. Each circuit handles up to 2.5A — enough for most PoE-alternative 24VDC cameras or access control readers, and the eight outputs let you cover a zone from a single supply.
- 1A Auxiliary Output: The dedicated 1A auxiliary output provides a separated circuit for signaling, door hardware, or other low-draw ancillary loads without pulling from the eight primary distribution outputs. Keeps your primary video or reader circuits isolated from door-strike transients.
- 12VDC/12AH Battery Backup Support: The onboard charger maintains a 12VDC/12AH sealed lead-acid battery and automatically transfers to battery on power loss. In a camera deployment, this is the difference between a recorded incident and a recording gap. Battery capacity should be sized to your load for runtime; the 12AH figure is the supported maximum, not a minimum requirement.
- CE Certification: The T2MK7F8DV carries CE European Conformity marking, confirming it meets EU safety and EMC directives. Necessary for installations in EU member states or any project requiring CE compliance on installed equipment.
- Rated Operating Range 0°C to 49°C: Designed for conditioned indoor environments — utility rooms, server closets, or security head-end cabinets. Not rated for outdoor installation or ambient temperatures above 49°C. Storage is rated -20°C to 70°C, so transport and staging in uncontrolled environments is fine.
- Up to 85% Relative Humidity (Non-Condensing): Suitable for most indoor mechanical rooms and utility spaces. Not a sealed or weatherized enclosure, so avoid locations with persistent moisture or condensation.
- Steel Lockable Enclosure, 27.25" × 21.5" × 6.5": The enclosure provides physical security for both the supply electronics and the backup battery. At 40.1 lbs., this is a two-person wall mount — plan accordingly during site walks. The 6.5" depth accommodates the battery inside the same footprint.
Integration and Compatibility
The T2MK7F8DV integrates into any surveillance or access control architecture that runs 24VDC devices — including most legacy analog cameras, 24VAC-tolerant door controllers, and select IP camera models that accept 24VDC auxiliary input (always verify device voltage tolerance before wiring). The eight PTC outputs are compatible with standard home-run wiring topologies: one cable per device from the supply to the field device. The 220VAC input makes this the correct choice for international deployments or domestic facilities with 220V dedicated circuits; it is not suitable for standard North American 120VAC circuits without a step-up transformer.
For larger power supply deployments or multi-zone installations, the Altronix product line includes higher-output and higher-channel variants. If your load exceeds 10A aggregate or you need more than eight individually protected circuits, review higher-capacity models in the Altronix catalog before committing to this unit. For access control installations, pair with a compatible access control system that accepts 24VDC input at the panel or reader level. When designing power distribution for multi-camera surveillance projects, refer to a surveillance camera system planning guide to ensure your per-circuit current draw stays within the 2.5A PTC rating per output.
Frequently Asked Questions
Q: What input voltage does the T2MK7F8DV require?
A: The T2MK7F8DV requires 220VAC input at 2.7A. It is not compatible with standard North American 120VAC circuits without an additional step-up transformer.
Q: How many protected outputs does the T2MK7F8DV provide, and what is the per-output current rating?
A: The unit provides eight PTC-protected outputs, each rated at 2.5A. PTCs are self-resetting, so a fault on one output clears automatically without replacing a fuse.
Q: What battery does the T2MK7F8DV support for backup power?
A: The T2MK7F8DV supports a 12VDC/12AH sealed lead-acid battery. The onboard charger maintains the battery and transfers load to battery automatically on power loss.
Q: Is the T2MK7F8DV CE certified?
A: Yes. The T2MK7F8DV carries CE European Conformity listing, making it suitable for installations in EU member states or projects requiring CE-compliant power equipment.
Q: What is the maximum ambient operating temperature for the T2MK7F8DV?
A: The operating temperature range is 0°C to 49°C. This unit is designed for conditioned indoor environments and should not be installed where ambient temperature exceeds 49°C.
Q: How much does the T2MK7F8DV weigh, and what should I plan for installation?
A: The unit weighs 40.1 lbs. (43.85 lbs. shipping). The enclosure dimensions are 27.25" × 21.5" × 6.5". Plan for a two-person wall mount during installation.
The T2MK7F8DV is one of those units I reach for on international projects or any domestic site where the facility already has a 220VAC dedicated circuit run to the security head-end — you get a full 10A at 24VDC without an intermediate transformer stage, which simplifies the panel layout and removes one potential failure point. The eight PTC-protected outputs are the feature that sells this to integrators who've dealt with a single shorted camera cable pulling down an entire zone at 2 a.m.
Technical Highlights:
- 10A Output at 24VDC: At 10A continuous, this supply can run up to four 2.5A loads simultaneously across separate PTC circuits with full headroom — realistic for a four-camera cluster with 24VDC analog or hybrid devices.
- Self-Resetting PTC Protection: Eight 2.5A PTCs mean no fuse pulls during a service call. A shorted cable clears the overcurrent device and resets automatically once the fault is removed — meaningful in high-bay or inaccessible locations where getting to the panel is a half-hour job.
- 12VDC/12AH Battery Backup: The integrated charger keeps the battery topped off and transitions automatically on loss of 220VAC. For a 24VDC camera cluster drawing 5A aggregate, a 12AH battery gives you roughly 1.5–2 hours of backup depending on load — enough to cover most utility outages without a separate UPS.
Deployment Considerations:
- Verify that every connected device is rated for 24VDC input — some access control readers and older cameras are nominally 24VAC, which is a different supply type entirely. Applying 24VDC to a 24VAC-only device will damage it.
- At 40.1 lbs. with a 27.25" × 21.5" enclosure, this is not a solo install. Budget two people for wall mounting and confirm your wall substrate before the site visit — the battery alone adds significant mass once installed.
This supply fits best in European commercial deployments or any North American facility with a 220VAC security circuit pre-run: retail multi-site rollouts using 24VDC PTZ analog cameras, international hotel security head-ends, or manufacturing floor surveillance panels where 220V is the facility standard.
