Altronix EFLOW104NX16D Power Supply/Charger
Overview
The Altronix EFLOW104NX16D is a UL-listed 24VDC power supply and charger designed for security and access control system integration. Rated at 24VDC @ 10A, this unit delivers dependable DC power conversion from 120VAC 60Hz input with integrated battery backup capability. The EFLOW104NX16D features 16 PTC-protected Class 2 outputs, enabling supervised distribution of power to multiple devices while maintaining circuit protection and load isolation. The inclusion of an auxiliary output, fire alarm disconnect functionality, and LinQ2-ready architecture positions this unit as a versatile backbone for mid-to-large scale security installations.
Key Features
- Input Power: 120VAC 60Hz — standard North American mains connection
- Output Rating: 24VDC @ 10A total capacity — sufficient for distributed multi-device feeds
- PTC Protected Outputs: 16 Class 2 outputs with Positive Temperature Coefficient protection prevent nuisance tripping and isolate faults to individual circuits
- Battery Backup: Integrated charging and supervision with battery presence detection — ensures continuity during AC mains loss
- Fire Alarm Disconnect: Safety-rated disconnect relay activates upon fire alarm signal to de-energize protected circuits
- Auxiliary Output: Additional output terminal for control signaling or ancillary device power
- LinQ2 Ready: Firmware and architecture support for Altronix LinQ2 supervisory network — enables remote monitoring and configuration
- UL Listed: Third-party certified safety approval meets applicable electrical and fire safety standards
- BC400 Enclosure: Compact, code-compliant cabinet design suitable for wall or DIN rail mounting in control rooms and equipment closets
- Supervision: Battery presence supervision confirms backup power availability at all times
Integration & Compatibility
The EFLOW104NX16D is engineered for seamless integration into security and life safety systems. The 16 individual PTC outputs allow independent supervision and protection of separate device branches — door locks, card readers, access controllers, intercoms, and auxiliary sensors can be powered on dedicated circuits without cascading failure risk. The auxiliary output supports integration with monitoring panels, relay modules, or signal conditioning equipment. LinQ2 compatibility enables the EFLOW104NX16D to participate in networked power management architectures, allowing centralized battery health reporting, load monitoring, and alarm event logging. The fire alarm disconnect relay provides code-compliant response to life safety triggers, ensuring automated de-energization of security circuits during emergency conditions.
The battery backup capability ensures that critical access control and intrusion detection circuits remain operational during AC supply interruption. Supervision of battery presence prevents silent failures and provides early warning of degraded backup capacity. The combination of robust output protection, battery continuity, and fire safety integration makes the EFLOW104NX16D suitable for mission-critical deployments in commercial buildings, institutional facilities, and industrial control environments.
Ted PerryPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
I've specified the Altronix EFLOW104NX16D in several medium-scale security integrations, and it delivers solid reliability as a distributed power backbone. The 16 PTC outputs are the real value proposition — you can confidently run independent device branches without the risk of a single short circuit collapsing power to the entire system. The EFLOW104NX16D handles that circuit isolation cleanly, and field replacement of a faulted PTC element is straightforward.
Technical Highlights:
- PTC Output Protection: Each of the 16 outputs is individually protected by positive temperature coefficient devices; a shorted door lock on one circuit will not affect the other 15 outputs, ensuring graceful degradation
- Battery Backup with Supervision: Integrated charger and battery supervision confirm backup power readiness; battery presence detection prevents silent failures during maintenance or aging
- Fire Alarm Safety Disconnect: The fire alarm disconnect relay provides code-compliant automated de-energization — critical in buildings with emergency voice/alarm systems or life safety integration
Deployment Considerations:
- Size the backup battery appropriately for your hold-up time requirements — the charger supports standard lead-acid or gel-cell batteries; I typically spec 5–7 Ah backup for 30-minute hold-up on 8–10 devices per circuit
- Verify fire alarm wiring and relay logic with your fire systems integrator before commissioning; the disconnect relay should be tested during system acceptance
- Use the auxiliary output strategically — it's ideal for powering a supervisory relay module or signaling a remote monitoring panel of power status
- Enable LinQ2 connectivity during commissioning if your site uses network-based power management; battery health and load trending data provide valuable diagnostics over the unit's operational lifetime
The EFLOW104NX16D is a well-engineered choice for integrators who need reliable, code-compliant power distribution with genuine circuit isolation and backup continuity. Spec it confidently for access control, intrusion, and auxiliary device feeds in buildings where system uptime matters.
