Altronix T2M75CK1DQ 24VDC/10A Hardwired Power Supply with Battery Backup
Overview
The Altronix T2M75CK1DQ is a 120VAC-input, 24VDC/10A regulated power supply and battery backup unit designed for commercial surveillance and access control installations that require sustained, reliable DC power even during a mains outage. Housed in a lockable metal enclosure measuring 27.25" × 21.5" × 6.5", the T2M75CK1DQ accommodates four 12VDC/7AH sealed lead-acid batteries and delivers a hardened, CE-listed power platform suited for mid- to large-scale security deployments.
Unlike commodity power bricks, this unit is engineered for integrators who need a single, bookable power address for multiple 24VDC field devices — cameras, door controllers, gate operators — with an automatic battery failover that keeps devices live when grid power drops without any manual switching or relay intervention.
Key Features
- 24VDC @ 10A Regulated Output: Ten full amps at 24VDC gives you headroom to feed multiple cameras or access control panels from a single supply point. At 24W per amp, you can support eight 30W devices with a 20% buffer before touching the ceiling — critical margin when you're adding devices to an existing run.
- Quad 12VDC/7AH Battery Array: Four internal 12VDC/7AH batteries wired in series-parallel provide 24V @ 14AH of standby capacity. At a 5A average draw, that's roughly 2.5 hours of runtime during a blackout — enough to cover most power events and bridge to generator cut-in in facilities with backup generation. Size your load accordingly for longer standby windows.
- Auxiliary 1A Output: The onboard 1A auxiliary rail supports low-draw ancillary devices — panel tampers, status indicators, or a small relay — without stealing from the main 10A bus. Keeps secondary loads electrically isolated and budget-managed.
- PTC Auto-Resettable Output Protection: Positive Temperature Coefficient fusing on the output means a short or overload condition trips the circuit automatically and resets once the fault clears — no blown fuses to track down at 2 a.m., no service call just to restore power. For multi-tenant or hard-to-access installations, this matters in practice.
- 120VAC/60Hz Input: Standard North American line voltage input with no step-down transformer or adapter required. Wire directly to a 120VAC circuit breaker — a basic electrical rough-in, not a special-order power conditioning step.
- CE Agency Listing: CE marking documents that the unit meets applicable EU safety and EMC directives. Relevant for projects with European compliance requirements or enterprise customers running international procurement standards.
- Operating Range 0°C to 49°C: The thermal envelope covers standard indoor equipment rooms, telecom closets, and conditioned mechanical spaces. Not rated for outdoor or unconditioned environments — plan accordingly when specifying a mounting location.
- Metal Lockable Enclosure (27.25" × 21.5" × 6.5"): The steel cabinet provides physical tamper resistance and houses all four batteries internally, keeping the installation clean. At 85.6 lb. installed, wall-mount anchor planning is non-negotiable — factor this into your rough-in before drywall.
Integration & Compatibility
The T2M75CK1DQ integrates into any 24VDC distribution architecture — it is not brand- or protocol-locked. Common deployment pairings include 24VDC access control panels (door controllers, magnetic lock power buses), surveillance cameras not served by PoE, and intercom systems requiring regulated DC with battery backup. The Altronix power supply and distribution line is widely specified alongside Lenel, Genetec, and Software House access platforms, though wiring compatibility is the integrator's responsibility at the device level.
For integrators building out a full access control infrastructure, the T2M75CK1DQ fits naturally as the centralized power node for a door-controller cluster, with field-run 24VDC circuits to each door position. Pair it with a distribution module if you need per-output fusing at the cabinet rather than relying solely on the PTC output. Review your power supply selection guide if you're sizing between this unit and lower-amperage Altronix options — the 10A bus here justifies the cabinet size only when aggregate draw supports it.
Storage temperature tolerance of -20°C to 70°C means the unit ships and stores without damage in cold-climate warehouses or staging areas — a practical consideration for pre-staging on large projects before the conditioned space is ready.
Frequently Asked Questions
Q: What batteries does the T2M75CK1DQ use, and how many does it hold?
A: The T2M75CK1DQ accommodates four 12VDC/7AH sealed lead-acid batteries internally. The four-battery array is wired to produce 24VDC @ 14AH of standby capacity for battery backup operation.
Q: What is the total output current on the main DC bus?
A: The primary output is rated 24VDC at 10 amperes. An auxiliary output provides an additional 1A for low-draw secondary devices.
Q: Is the T2M75CK1DQ suitable for outdoor installation?
A: No. The operating temperature range is 0°C to 49°C and the enclosure is not rated for outdoor exposure. The unit should be installed in a conditioned, indoor equipment space such as a telecom closet or security equipment room.
Q: What happens if an output is shorted or overloaded?
A: The T2M75CK1DQ uses PTC (Positive Temperature Coefficient) auto-resettable protection on its output. On a fault condition, the circuit trips automatically and resets once the overload clears — no fuse replacement is required.
Q: How heavy is the T2M75CK1DQ, and what should I know before wall-mounting it?
A: The installed product weight is 85.6 lb., with a shipping weight of 98.8 lb. The enclosure measures 27.25" × 21.5" × 6.5". Wall-mount anchor selection must account for the loaded weight, particularly when all four batteries are installed. Confirm stud spacing and anchor capacity during rough-in planning before the enclosure is staged.
Q: What input voltage does the T2M75CK1DQ require?
A: The unit operates on standard 120VAC, 60Hz — a standard North American single-phase circuit. No step-down transformer or special conditioning is required.
The T2M75CK1DQ earns its cabinet footprint when you're powering a door-controller cluster or a multi-camera 24VDC node where losing power means losing access control or surveillance coverage simultaneously. The 10A regulated bus is the spec that matters here — that's enough headroom to feed eight 30W devices with margin, and the onboard 4×7AH battery array means you're not scrambling to source an external UPS just to get your access panels through a 2-hour outage.
Technical Highlights:
- 24VDC @ 10A Regulated Output: Full 10A on the main bus supports multi-device clustering — enough to drive 8+ 24VDC field devices at typical loads without a secondary distribution panel.
- 4×12VDC/7AH Battery Array: Combined 14AH capacity at 24V delivers approximately 2.5 hours at a 5A average draw — bridges most utility outages and pairs well with facilities running generator cut-in under 3 minutes.
- PTC Auto-Resettable Protection: Eliminates the service call for a blown fuse on an overload event — circuit resets automatically once the fault clears, which matters in remote or hard-to-access equipment rooms.
Deployment Considerations:
- At 85.6 lb. loaded, wall-mount anchor engineering is a real pre-construction item — don't assume standard drywall anchors; confirm stud spacing or use a dedicated equipment backboard before the enclosure arrives on site.
- The 0°C to 49°C operating ceiling means this unit belongs in conditioned space only — a hot attic, unconditioned mechanical room running above 49°C, or exterior enclosure will shorten battery life and can push the unit outside its rated window; ambient temperature monitoring at the cabinet location is worth verifying during commissioning.
For mid-size commercial deployments — a 4- to 8-door access control system with co-located 24VDC cameras and a generator-backed facility — the T2M75CK1DQ covers the power architecture in a single-cabinet solution without requiring a separate UPS, distribution panel, or external battery rack. That's where the size-to-function trade-off makes sense.
