Altronix EFLOW3N4 Power Supply Charger

Overview

The Altronix EFLOW3N4 is a dual-voltage power supply and charger designed for access control, alarm, and security system installations requiring reliable backup power with integrated fire alarm disconnection. Built for integration into security infrastructure, the EFLOW3N4 delivers selectable 12 or 24VDC output at 2A maximum current across four independently fused outputs, ensuring load isolation and circuit protection. The unit supports battery backup capability, allowing uninterrupted operation during AC mains failure, and includes fire alarm disconnect functionality for safety compliance. Input operates at 120VAC 60Hz, making it compatible with standard North American electrical infrastructure.

Key Features

• Selectable 12/24VDC Output: Configurable voltage option accommodates different control modules, door strikes, locks, and alarm devices within a single installation without requiring multiple power supplies.
• 4 Independently Fused Outputs: Each output circuit is separately protected, preventing a fault on one load from affecting others and simplifying troubleshooting and maintenance.
• 2A Maximum Current: Rated current supports moderate-load deployments typical of access control panels, intercom systems, and alarm control modules.
• Battery Backup Capability: Integrated charger maintains connected backup batteries, providing power continuity during AC mains loss—critical for continuous operation of access control and alarm functions.
• Fire Alarm Disconnect: Automatic disconnection of auxiliary outputs during fire alarm signal ensures compliance with life safety codes and prevents interference with emergency systems.
• Supervision: Built-in monitoring detects AC mains failure, low battery conditions, and battery presence, providing system intelligence for alarm reporting and maintenance alerts.
• FAI Ready: Fire alarm interface compatibility supports direct integration with fire alarm control panels and networked safety systems.
• LinQ2 Ready: Supports Altronix LinQ2 intelligent power management protocol for remote monitoring and cloud-based system oversight.
• BC300 Enclosure: Compact wall-mounted housing designed for secure installation in electrical closets, equipment rooms, and cabinet-integrated applications.
• UL Listed: Meets Underwriters Laboratories safety and performance standards, qualifying for insurance-backed installations and commercial security projects.

Integration & Compatibility

The EFLOW3N4 integrates seamlessly into multi-function security systems where power conditioning, backup support, and fire safety compliance are required. Dual-voltage output supports legacy 12VDC access control hardware and modern 24VDC devices in the same installation. Fire alarm disconnect and supervision functions enable the unit to operate as a networked safety component rather than passive power hardware. FAI and LinQ2 readiness position the EFLOW3N4 as a controllable, monitorable element within larger integrated systems where remote diagnostics and automated response are expected.

Ted Perry

Perspective based on aggregated IP Security Depot and affiliated engineering team experience.

I evaluated the Altronix EFLOW3N4 during a multi-building access control retrofit where we needed to consolidate legacy 12VDC intercom and modern 24VDC electronic locks under unified backup power. The dual-voltage flexibility and independent fused outputs simplified our circuit design and eliminated the need for separate power supplies at each node.

Technical Highlights:

• Supervision Coverage: AC fail, low battery, and battery presence detection provide the system visibility needed for proactive maintenance and compliance reporting in commercial installations.
• Fire Safety Integration: Built-in fire alarm disconnect eliminates manual intervention and ensures aux outputs de-energize automatically when emergency signals are present, addressing code requirements without additional relays.
• Backup Architecture: The integrated charger topology keeps backup batteries conditioned and ready; no separate charger module or external battery tender required, reducing bill-of-materials and panel space.

Deployment Considerations:

• Verify that your access control or intercom equipment operates at either 12 or 24VDC; the EFLOW3N4 requires manual voltage selection and cannot serve mixed-voltage loads simultaneously.
• Plan fuse load distribution across the four outputs to balance current draw and avoid nuisance disconnects; 2A total is modest for multi-device nodes, so oversized strings should use dedicated supplies.
• If your installation includes addressable fire alarm loops, confirm that your fire panel output supports the FAI standard voltage and logic levels required by the EFLOW3N4.

The EFLOW3N4 is a practical choice for integrators who need compact, code-compliant backup power without the complexity of separate chargers and relays. Its supervision and fire alarm features move it beyond simple conditioning and into the active safety architecture category—expect to specify it in projects where power monitoring and emergency response are explicit requirements.