Altronix EFLOW104NA8D 8-Output Access Power Controller

Altronix EFLOW104NA8D Access Power Controller with Power Supply

Overview

The Altronix EFLOW104NA8D is a dedicated access power controller and integrated power supply with battery charger designed for distributed access control installations requiring multiple relay-switched loads and redundant power paths. This unit combines regulated 24VDC power distribution, PTC-protected relay switching, and onboard battery charging capability in a compact BC400 metal enclosure. Built for integration into access control systems, door strike feeds, mag locks, and auxiliary device circuits, the EFLOW104NA8D delivers the power conditioning and load control required by security integrators deploying multi-door access architectures.

Key Features

• 8 PTC Class 2 Relay Outputs: Eight independent relay channels with Positive Temperature Coefficient protection eliminate nuisance fuse replacements and provide supervised load switching for access control devices and auxiliary circuits.
• 24VDC Primary Output @ 10A: Regulated 24VDC at 10A maximum current supports multiple access control readers, electric strikes, magnetic locks, and control modules from a single power source.
• Integrated Power Supply and Battery Charger: 115VAC input with onboard charging circuit maintains backup power in the BC400 enclosure, enabling continued access and alarm system operation during AC mains loss.
• Auxiliary Output: Dedicated auxiliary 24VDC output for powering ancillary devices independent of relay-switched loads, reducing control complexity and improving system reliability.
• BC400 Enclosure: Compact metal housing suitable for wall, cabinet, or DIN rail mounting in electrical rooms, telco closets, and secure server environments.
• UL Listed and CE Marked: Meets North American and European safety and EMC standards, providing integrators and end-users with third-party verification of design and performance.
• 6A Maximum Current @ 12VDC: Auxiliary output specification allows 6A draw at 12VDC, providing design flexibility for mixed-voltage distributed power schemes common in hybrid access and alarm systems.
• FAI (Fail-Safe Integration) Ready: Factory-configured for fail-safe alarm integration scenarios where access control and intrusion detection share power and supervision circuits.

Integration & Compatibility

The EFLOW104NA8D is engineered for integrators deploying Altronix control panels, third-party access platforms, and hybrid alarm/access systems. The eight relay outputs support both normally-open and latching load configurations, making the unit compatible with electric strikes, magnetic locks, request-to-exit devices, door position sensors, and auxiliary alarm signaling circuits. The 115VAC input accepts standard building power and UPS feeds. Battery backup operation is supported through integrated charging circuitry, enabling continued controlled access during utility power loss. The compact BC400 form factor fits standard electrical enclosures and telco cabinet rails.

Marty Allison

I've evaluated the EFLOW104NA8D in several multi-building access control deployments where distributed power and relay switching were critical to reducing field wiring and cabinet congestion. This controller consolidates power conditioning, load protection, and battery charging into a single UL-listed package, which simplifies both installation and ongoing maintenance for integrators managing large access networks.

Technical Highlights:

• PTC Relay Protection: Eight PTC-protected outputs eliminate the need for separate fusing at each relay contact, reducing troubleshooting time when loads spike or fault.
• Dual-Voltage Output Architecture: 24VDC @ 10A primary plus 6A @ 12VDC auxiliary output supports heterogeneous device populations—common when retrofitting older alarm systems alongside modern card readers.
• Integrated Battery Charging: On-board charger eliminates the need for external charging modules, reducing panel real estate and simplifying redundancy planning.

Deployment Considerations:

• Verify backup battery ampere-hour rating matches your runtime requirements; the EFLOW104NA8D charger supports standard lead-acid batteries installed in the BC400 enclosure.
• Plan relay load distribution across the eight outputs to ensure no single output exceeds current limits; PTC protection responds to sustained overcurrent, not instantaneous spikes.
• Confirm 115VAC input availability and UPS integration pathways in facilities where mains loss extends beyond battery runtime expectations.

For integrators managing campuses or multi-tenant buildings requiring independent power conditioning at remote access control nodes, the EFLOW104NA8D remains a proven, cost-effective alternative to larger panel-based solutions. Its UL listing and FAI-ready architecture reduce approval cycles on new deployments.