Altronix T2SAK78D 24VDC 10A Power Supply Charger

Altronix T2SAK78D TROVE2 24VDC Power Supply/Charger

Overview

The Altronix T2SAK78D is a regulated 24VDC power supply and battery charger designed for security system installations requiring supervised power distribution with integrated battery backup capability. Built on the TROVE2SA2 platform, the T2SAK78D delivers 10 amps of continuous output power with built-in PTC (Positive Temperature Coefficient) circuit protection, making it a dependable power source for access control, CCTV, alarm, and auxiliary security equipment in small to mid-scale deployments.

Key Features

• Output Rating: 24VDC @ 10A continuous current for reliable power distribution to multiple security devices
• Battery Charger Function: Integrated charging circuit enables seamless transition to battery backup power during AC mains failure
• PTC Circuit Protection: Resettable thermal protection on each output prevents nuisance breaker trips and reduces service callbacks
• Regulated Output: Maintains stable 24VDC across normal line and load variations, critical for consistent operation of digital access control and camera systems
• UL Listed: Meets UL safety standards for commercial security installations
• Compact Form Factor: Suitable for wall-mount or cabinet integration in standard security system enclosures

Battery Backup Integration

The T2SAK78D is engineered for battery-backed power configurations. The integrated charger circuit continuously maintains connected battery systems in a fully charged state, ensuring emergency lighting, door strikes, and critical access control nodes remain operational during AC power interruptions. This capability makes the Altronix T2SAK78D an essential component in life-safety and access control architectures where uninterrupted power is mandatory.

PTC Protection and Reliability

Each output on the T2SAK78D incorporates PTC (Positive Temperature Coefficient) protection rather than traditional fuses or mechanical breakers. PTC devices automatically reset when the fault condition clears, eliminating the need for replacement fuses and reducing downtime in field deployments. This design is particularly valuable in remote installations or campus-wide security systems where manual intervention is inconvenient.

Security Integrator Installation Notes

The Altronix T2SAK78D is sized for installations requiring 10 amps of available 24VDC power. Typical applications include:

• Access control systems with 4–8 door strikes or magnetic locks
• Small-scale CCTV camera power distribution (analog or IP cameras with local PoE switches)
• Alarm system control panels and auxiliary modules
• Intercom and communication device backup power
• Mixed-load security deployments combining door hardware, sensors, and monitoring devices

The T2SAK78D model integrates seamlessly into existing Altronix enclosure ecosystems and standard DIN-rail mounting frameworks. Its 10-amp capacity provides sufficient headroom for oversizing margin in typical installations, reducing the risk of nuisance shutdowns and supporting future equipment additions without requiring a power supply upgrade.

Jerry Tildsen

I've specified the Altronix T2SAK78D on multiple mid-scale access control and camera projects, and it consistently delivers stable 24VDC power with minimal field issues. The integrated battery charger eliminates the need for a separate charging module, which simplifies the bill of materials and reduces panel clutter. The PTC protection is a practical design choice—I've seen it prevent unnecessary service trips by automatically resetting when a short-lived fault condition clears.

Technical Highlights:

• 10-Amp Continuous Output: Sufficient for small access control and CCTV camera installations without requiring dual power supplies
• Integrated Charger: Battery backup compatibility is built in; no external charger module required
• PTC Protection: Resets automatically, reducing field service calls compared to fused supplies

Deployment Considerations:

• Confirm total load current across all connected devices before installation; 10 amps is adequate for most single-building access and camera systems but may require load balancing in larger campuses
• Pair with appropriately sized 24V battery and charger if backup power is required; the T2SAK78D's charging circuit will maintain the battery in standby mode

The T2SAK78D is a straightforward, reliable choice for integrators working with mid-range security installations. It's not overspecced for smaller jobs, and the battery integration removes a common integration headache. Recommended for new builds and upgrades where power supply reliability is a priority.