Altronix EFLOW4N8DV 220VAC 8-Output PTC Power Supply/Charger with Fire Alarm Disconnect

Overview

The Altronix EFLOW4N8DV is a 220VAC-input power supply and battery charger designed for international and export security deployments where North American 115VAC infrastructure is not available. It converts a 220VAC (198–256VAC), 50/60Hz input into eight individually PTC-protected 12VDC or 24VDC outputs at a combined 4A — enough to power a distributed network of access control readers, door strikes, or low-current surveillance devices from a single enclosure. If you're specifying a system for a 220VAC environment and need supervised power with battery standby and Altronix LinQ2 remote monitoring capability, this is the unit to evaluate.

The EFLOW4N8DV carries CE, TAA, NDAA, and BAA compliance listings, which matters for government contracts and federally funded installations where component sourcing is audited. As part of the Altronix power supply eFlow series, it is LinQ2-ready, meaning you can attach the optional LINQ2 network communication module to monitor power diagnostics remotely without local technician access.

Key Features

• 8 PTC-Protected Outputs, Each Rated 2A: Auto-resettable PTC fusing on every output means a shorted device clears itself without manual fuse replacement — critical in distributed access control panels where a single output fault shouldn't require a truck roll to restore the other seven circuits.
• 12VDC or 24VDC Selectable @ 4A Total: Voltage is field-selectable, so the same unit covers both 12V electric strikes and 24V magnetic locks. Total output current is 4A shared across all eight outputs — plan your load budget accordingly, with individual outputs rated at 2A each.
• Unswitched 1A Auxiliary Output: The auxiliary output remains live regardless of fire alarm disconnect state, useful for powering a panel or reader that must stay energized during a fire event while door-hold releases drop.
• Supervised Fire Alarm Disconnect (FAI) with 10K EOL Resistor: The fire alarm input is supervised using a 10K end-of-line resistor, supporting both normally open and normally closed trigger configurations. The disconnect is selectable for latching or non-latching operation, giving you flexibility to match the local AHJ requirement without rewiring.
• Built-in Battery Charger, 1.54A Max Charge Current: Integrated charging for sealed lead-acid or gel-cell batteries with instantaneous automatic switchover on AC loss — no transfer gap, no output dip. The low-power disconnect protects batteries from deep discharge by shutting down DC outputs when voltage drops to 71–73% of 12V nominal or 70–75% of 24V nominal, extending battery service life in prolonged outage events.
• AC Fail and Battery Supervision via Form C Contacts: Both AC fail and battery presence/fail conditions generate supervised form C dry-contact outputs. The AC fail notification is selectable for 30-second or 2-hour delay, accommodating sites where brief power flickers are normal and immediate alarm generation is undesirable.
• 220VAC Input Range (198–256VAC): The wide input tolerance handles real-world voltage sag in international grid environments without dropout. Input fuse is 5A/250V, with a 2.1A nominal draw and 462VA AC input VA requirement — size your branch circuit and conduit accordingly.
• NDAA and TAA Compliant: Both NDAA Section 889 and TAA compliance are verified for this SKU — relevant for any federal, DoD, or GSA schedule deployment where component sourcing restrictions apply. CE listing extends applicability to EU installations.
• LinQ2-Ready for Remote Monitoring: The optional LINQ2 module (sold separately) connects to the eFlow series board and provides network-accessible power diagnostics. In multi-site deployments managed by a central team, this eliminates the need for physical inspection to confirm battery health or AC status.
• BC300 Indoor Wall-Mount Enclosure: The included enclosure measures 13″W × 13.5″H × 3.25″D and accommodates up to two 12VDC/7AH batteries internally. Combination ½″ and ¾″ knockouts support standard conduit runs. At 6.7 lbs. product weight, one technician can handle wall mounting without a lift.

Integration and Compatibility

The EFLOW4N8DV integrates directly with the access control ecosystem — door controllers, readers, electric strikes, maglocks, and REX devices — anywhere a 220VAC branch circuit is available and eight independently fused output circuits are needed. The LinQ2 network module (accessory, not included) connects to this unit's board and enables SNMP-style remote monitoring via the Altronix LINQ user portal, useful for enterprise deployments where centralizing power-health reporting into a head-end dashboard reduces field labor. Batteries (up to two 12V/7AH units) must be sourced separately; confirm battery dimensions against the BC300 enclosure interior before ordering oversized cells. For installations requiring more than 4A total or more than eight outputs, evaluate the Altronix eFlow series higher-capacity variants rather than paralleling this unit. For guidance on sizing power supplies across a multi-door access control project, a pre-sales engineering review helps avoid under-specifying total current budget.

Frequently Asked Questions

Q: Is the Altronix EFLOW4N8DV NDAA Section 889 compliant?

A: Yes. The EFLOW4N8DV carries verified NDAA compliance, along with TAA, BAA, and CE listings — making it suitable for federal, DoD, and GSA schedule installations where component sourcing restrictions apply.

Q: What input voltage does the EFLOW4N8DV require?

A: The EFLOW4N8DV is designed for 220VAC input with a working range of 198–256VAC at 50/60Hz. It is NOT compatible with standard North American 115VAC circuits — this is specifically an export/international or 220V domestic variant.

Q: How many outputs does the EFLOW4N8DV provide, and how are they protected?

A: It provides eight (8) PTC-protected outputs, each rated at 2A, with a combined maximum of 4A across all outputs. PTC fusing is auto-resettable — no manual fuse replacement needed after a fault clears.

Q: What batteries are compatible with the EFLOW4N8DV, and are they included?

A: The EFLOW4N8DV supports sealed lead-acid or gel-type batteries. The BC300 enclosure accommodates up to two 12VDC/7AH batteries. Batteries are sold separately.

Q: Does the EFLOW4N8DV support remote monitoring?

A: Yes — the unit is LinQ2-ready. The optional LINQ2 network communication module (sold separately) enables remote monitoring and reporting of power supply diagnostics via the Altronix LINQ user portal.

Q: What is the fire alarm disconnect configuration on the EFLOW4N8DV?

A: The FAI is supervised with a 10K EOL resistor and supports both normally open (NO) and normally closed (NC) trigger wiring. The disconnect is selectable for latching or non-latching operation, and an unswitched 1A auxiliary output remains live regardless of FAI state.

James Everett

The EFLOW4N8DV is one of the few Altronix eFlow units built specifically for 220VAC environments — if you're speccing an international site, a 220V commercial building, or an export project and you need supervised, battery-backed distributed power with fire alarm integration, this is the model to pull. The 198–256VAC working range gives you real tolerance for grid instability common in many international markets, and the NDAA/TAA/BAA triple compliance stack keeps it clean for government work.

Technical Highlights:

• 4A Total / 2A Per Output: Eight outputs sounds generous until you load them up — at 2A per circuit with 4A total shared, you need to budget carefully. Four 1A door strikes is comfortable; eight 1A devices leaves zero headroom for inrush. Map your loads before committing to output count.
• 1.54A Battery Charge Current with Deep-Discharge Protection: The low-power disconnect at 71–73% of nominal 12V (or 70–75% at 24V) is a real battery-life extender — running lead-acid cells below ~10.5V regularly will kill them in 12–18 months. This circuit prevents that without manual intervention.
• Supervised FAI with Selectable Latching: The 10K EOL resistor on the fire alarm input means a wire cut or short is detectable — not just an open loop. Latching vs. non-latching is a common AHJ and integrator debate; having it field-selectable avoids a parts-swap on final inspection.

Deployment Considerations:

• The BC300 enclosure takes up to two 12V/7AH batteries internally — verify battery physical dimensions before ordering; some 7AH cells run taller than the cavity allows. And remember, batteries are not included.
• The LINQ2 remote monitoring module is sold separately — if your contract requires remote power health reporting, line-item it in your BOM from the start rather than treating it as an afterthought add-on after installation.

The EFLOW4N8DV is the right spec for 220VAC access control head-end rooms in international facilities, embassy-grade installations, or domestic 220V industrial environments where you need eight supervised output circuits, fire alarm integration, and the compliance paperwork to satisfy a federal or export contract — and where LinQ2 remote monitoring will be added as the site matures.