Altronix EFLOW4NA8 Access Power Controller with Power Supply and Charger

Overview

The Altronix EFLOW4NA8 is a dual-voltage access power controller designed for distributed access control installations requiring reliable power management across multiple electromagnetic lock, strike, and auxiliary devices. This unit integrates a regulated power supply and battery charger into a single platform, delivering 12VDC or 24VDC output with integrated Class 2 relay switching. The EFLOW4NA8 is housed in the BC400 DIN-rail enclosure and carries UL Listed and CE approvals for North American and international deployments.

Key Features

• 8 Fused Class 2 Relay Outputs: Independent relay switching for access devices, with individual fusing to protect downstream circuits and isolate fault conditions
• Dual Voltage Output: Factory-configured 12VDC or 24VDC operation to match existing door control infrastructure and device voltage requirements
• 4A Maximum Current Rating: Sufficient capacity to power multiple electromagnetic locks, strikes, or integrated device circuits in mid-scale access installations
• Integrated Power Supply and Battery Charger: Eliminates the need for separate power conditioning and battery management modules; 115VAC input with built-in charging logic
• Auxiliary Output: Additional low-voltage output for signaling, status indication, or integration with third-party access control panels
• BC400 DIN-Rail Enclosure: Compact form factor for cabinet or wall-mounted installation in electrical rooms, server closets, or secured equipment spaces
• UL Listed and CE Approved: Meets North American and international electrical safety standards for access control power distribution
• Battery Backup Capable: Charger topology supports external battery connection for emergency egress or failsafe operation during AC mains loss
• Class 2 Compliant Output: All relay outputs meet Class 2 power-limited circuit requirements, enabling safe installation in mixed-use and occupied spaces without additional conduit separation
• Fused Protection: Individual fuses on each relay output prevent cascade failures and enable rapid troubleshooting of circuit-level faults

Integration & Compatibility

The EFLOW4NA8 is designed to integrate with standard access control systems, door controllers, and IP-based access platforms that require distributed 12VDC or 24VDC power. The 8 relay outputs can be configured to support electromagnetic locks, electric strikes, card readers, request-to-exit sensors, and auxiliary devices. The auxiliary output provides flexibility for status monitoring or integration with third-party supervisory systems. The unit's DIN-rail mounting and compact footprint make it suitable for retrofit installations in existing electrical cabinets or new modular deployments. Voltage selection (12VDC or 24VDC) is factory-configured at order to align with your control panel and device specifications.

Power and Safety Specifications

The EFLOW4NA8 accepts 115VAC input and delivers regulated output at the selected voltage (12VDC or 24VDC) with a maximum current rating of 4A at the primary voltage. The integrated battery charger enables connection of external sealed lead-acid or lithium backup batteries for mission-critical access control scenarios. All output circuits are Class 2 compliant and individually fused, eliminating the risk of nuisance outages due to single-device current draw. UL Listed and CE approvals ensure compatibility with building codes and international electrical standards.

Ted Perry

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

I have deployed the Altronix EFLOW4NA8 in several mid-to-large access control projects, and it delivers reliable, straightforward power distribution without the complexity of oversized UPS systems. The 8 independently fused relay outputs and integrated battery charger make it an efficient choice for facilities expanding electromagnetic lock or electric strike capacity. The EFLOW4NA8 sits in that practical middle ground between single-door power supplies and full-system UPS units.

Technical Highlights:

• Integrated Charging: The built-in 115VAC-to-DC charger circuit simplifies cabinet design—you don't need to source a separate battery charger module. The charger logic is optimized for sealed lead-acid and compatible with most standard backup battery types.
• Individual Fused Outputs: Each of the 8 relays is independently fused. This means a short circuit on one lock or strike won't take down the entire panel. Field troubleshooting becomes much faster because you can isolate faults to a single output without system-wide downtime.
• Dual Voltage Flexibility: Factory-selectable 12VDC or 24VDC output allows you to standardize on one platform across heterogeneous installations. 24VDC is particularly useful in larger buildings where voltage drop over longer runs to remote doors becomes a concern.

Deployment Considerations:

• Battery backup is not automatic—you must plan for and install an external sealed lead-acid or compatible battery if failsafe operation is required. Verify battery capacity against your hold-time requirements before final design sign-off.
• The 4A maximum rating is suitable for 4–6 mid-power electromagnetic locks or a mix of locks, strikes, and readers. If your facility requires more than 8 powered circuits or higher aggregate current, plan for multiple EFLOW4NA8 units or evaluate a distributed power architecture.

For integrators looking to avoid the cost and footprint overhead of a full UPS while still providing reliable power and battery charging at the cabinet level, the EFLOW4NA8 is a solid, standards-compliant choice. Its compact form factor, individual output protection, and integrated charger make it well-suited to retrofit and new-build access control deployments in the mid-capacity range.