Securitron AQD4 Switching Powe...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$301.18
Securitron Securitron AQD4 Switching Power Supply 12/24 VDC 4Amp with Distribution Board SEC-AQD4-DB

Securitron AQD4 Switching Power Supply 12/24 VDC 4Amp with Distribution Board

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Model: AQD4-8F1
$301.18

In Stock (leaves warehouse same day if ordered before 3pm ET)

$301.18
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SECURITRON AQD4 DUAL VOLTAGE 4 AMP SWITCHING POWER SUPPLY

The Securitron AQD4 Series of switching power supplies are dual voltage, UL listed, supervised units. These units are field selectable with an integrated battery charger. They provide 4 Amp at 12VDC or 24VDC continuous, with up to 16 independently controlled power limited outputs.

 

FEATURES & BENEFITS

  • Available with a single relay fire trigger or individually triggered relayed outputs
  • All combinations of AQ power supplies and distribution boards are UL listed
  • Dual voltage 12 or 24 VDC field selectable continuous output
  • Tolerates brownout or overvoltage input ± 15% of nominal voltage
  • Circuit breaker protects against overcurrent and reverse battery faults
  • Up to 82% efficiency which results in decreased operating costs and lengthens the lifespan of electronics
  • Thermal shutdown protection with auto restart
  • Integrated battery charging circuit prevents overvoltage on locking devices

 

SPECIFICATIONS

Electrical

  • 12 VDC or 24 VDC field selectable output
  • 115 VAC input
  • Supports up to two (2) sealed gel, AGM or wet lead acid batteries
  • Up to 90% efficiency
  • Low voltage ripple design as low as 240 mV p-p

Environmental

  • Operating Temperature: -4° to 122° F (-20° to 50° C)

 

DOWNLOADS & RESOURCES

Manufacturer Resources

Product Specs

Series:
AQD Series
Warranty:
Lifetime Replacement
Fire Alarm Relay:
Yes
Product Group:
Electronic Access Controls
Product Subgroup:
Controllers, Power Supplies and Transformers
Subcategory:
Power Supply
Commercial/Residential:
Commercial
Product Type:
Power Supplies
Electronic:
Yes
Power:
4 Amps
Current:
2A
Product Model:
SEC-AQD4
Product Voltage:
12/24VDC
Product Category:
Electronic Access Controls
Department:
Door Hardware

Securitron AQD4-8F1 – Frequently Asked Questions

1) Will the Securitron AQD4 power supply run 12VDC maglocks and 24VDC electric strikes on the same job?
Not at the same time. The AQD4 output voltage is field selectable, so you set the whole unit to either 12VDC or 24VDC and every output on the distribution board follows that setting. If an opening mixes 12V and 24V devices, plan on a second supply for the other voltage. Input is 115VAC, and the unit tolerates brownout or overvoltage swings of plus or minus 15 percent of nominal.
2) How many door devices can a 4 amp Securitron AQD4 power supply actually run?
Budget by current draw, not door count. The AQD4 delivers 4 amps continuous at whichever voltage you select, and that 4 amps is the ceiling shared across every output on the board. Add up the holding or operating current of each lock, strike or maglock on the run, plus the battery charging load, and stay under 4 amps. Individual outputs are fused at 1 amp or 2 amps depending on how you order it, so no single output can pull more than its fuse rating regardless of the total available.
3) Do I order the Securitron AQD4 with 4 outputs or 8 outputs?
The AQD4 distribution board comes in a 4 output and an 8 output configuration. Count the individually powered devices on the run, not the doors: a single opening with a maglock and a separate reader or auxiliary device may take two outputs. Each output is independently controlled and power limited, so if you want to be able to kill power to one door without dropping the others, you need an output per device. Both counts still share the same 4 amp total.
4) What do the relay options on the Securitron AQD4 do, and how many do I need?
The relays are what let the fire alarm drop your locks. The AQD4 can be ordered with 0, 1, 2 or 8 relays. Zero relays means the board just distributes power with no fire trigger release. One relay gives you a single fire trigger that kills every output at once, which is the usual choice when the whole group of doors releases together. Two or eight relays give you individually triggered relayed outputs, so you can release selected doors, or zone them, while others stay locked. If your fire alarm interface needs door by door release, order the relay count to match the number of doors you must control separately.
5) Does the Securitron AQD4 support battery backup, and what kind of batteries?
Battery charging is built in, no add on charger board. The AQD4 supports up to two batteries, sealed gel, AGM or wet lead acid. The charging circuit is designed to keep overvoltage off the locking devices while it charges, which matters because a lock fed raw charging voltage runs hot. Batteries themselves are a separate purchase.
6) What is the closest 4 amp dual voltage substitute for a Securitron AQD4 power supply?
The SDC 634 Series is the nearest match on core output: it is a 4 amp regulated and filtered low voltage power supply with dual voltage selection, the same 4 amp capacity and 12/24 VDC selectable arrangement the Securitron AQD4 provides. The AQD4 side of the comparison carries an integrated distribution board with up to 16 independently controlled power limited outputs and a fire alarm relay trigger, so if the opening needs distributed, individually fused door outputs rather than a single regulated supply feed, the AQD4 configuration is the one that covers it.
7) What should I use instead of a Securitron AQD4 if the run needs more than 4 amps at 24 volts?
When the door count outgrows 4 amps, the Altronix AL1024ULACMCB is a power supply and access power controller with 24 VDC at 10 amps and 8 PTC outputs from a 115 VAC 60 Hz input, so it holds the same fused multi-output structure at higher capacity. The BEST PS161-6 is a 6 amp supply with 120 volt input and 12/24 volt output, sized for delayed egress exit devices. The Securitron AQD4 tops out at 4 amps continuous at either 12 or 24 VDC.
8) I need battery backup with my access control power supply - which alternatives to the Securitron AQD4 include it?
The Adams Rite PS-1 is a 1 amp regulated supply at 12/24 volts DC with battery backup, and the Command Access PS204/204B is a linear supply delivering 2 amps at 24 VDC with battery backup. The Detex 10-800 Series pairs a universal logic controller with a 120 VAC/24 VDC supply and battery backup. On the Securitron side, the AQD4 has an integrated battery charging circuit that supports up to two sealed gel, AGM or wet lead acid batteries, with the charging circuit arranged to prevent overvoltage on locking devices.
9) For an exit device with motorized latch retraction, is the Securitron AQD4 the right supply or should I use something else?
Motorized latch retraction has an inrush profile that manufacturers usually address with a purpose built supply. The BEST RPSMLR2 Series is a power supply made for motorized latch retraction exit devices, and the BEST PS161-6 is a 6 amp 120V input, 12/24V output unit for delayed egress exit devices. The Securitron AQD4 is a general 4 amp 12/24 VDC supply with a distribution board and fire alarm relay, which suits mag locks, strikes and access control loads across a multi-door run.
10) Should I choose glass fuses or PTC Polyswitch on the Securitron AQD4 distribution board?
Both are offered on the AQD4, at either 1 amp or 2 amp, and the choice is about what happens after a fault. Glass fuses blow and have to be physically replaced, which means a truck roll to the panel every time an installer shorts a lock lead. PTC Polyswitch outputs are resettable: they open on overcurrent and restore themselves once the fault clears and the device cools. For scattered doors, remote sites or buildings where you are not the one holding the keys to the electrical room, the PTC version saves service calls. Every combination of output count and relay count is available with either fuse type.
11) Can a Securitron AQD4 power supply be mounted in an unconditioned space like a parking garage or a rooftop closet?
Operating range is minus 4 to 122 degrees F (minus 20 to 50 degrees C), which covers most unheated interior closets, garages and mechanical rooms in the continental US. It does not cover direct exposure to weather. Note that batteries in the enclosure will lose capacity long before the supply reaches its own low temperature limit, so cold locations shorten your standby time.
12) What is the difference between the Securitron AQD4 and a small plug in or single door power supply?
Scale and control. The AQD4 is a 4 amp supervised supply with a distribution board carrying 4 or 8 individually controlled outputs and up to 8 fire trigger relays, which is what you want when one panel feeds a bank of openings. If you are powering one door, something like the ROFU 9126T plug in mini supply at 12VDC 1.5A with time delay, or the Command Access PS1 at 1 amp 24VDC, is the right size and there is no distribution board to configure. Going the other way, if the load exceeds 4 amps, the Altronix AL1024ULACMCB gives 24VDC at 10A with 8 PTC outputs, and the BEST PS161-6 is a 6A 12/24V unit.
13) What protects the Securitron AQD4 if an installer reverses the battery leads or shorts a lock output?
A circuit breaker on the AQD4 covers overcurrent and reverse battery faults, so a backward battery connection does not destroy the board. Downstream, each output carries its own fuse at 1 amp or 2 amps, glass or resettable PTC Polyswitch depending on what you ordered, so a shorted lock lead takes out that one output rather than the whole panel. There is also thermal shutdown with automatic restart, meaning an overtemperature event recovers on its own once the unit cools instead of leaving the doors dead until someone drives out.
14) Is a linear power supply an alternative to the Securitron AQD4 switching supply?
Yes, for smaller loads. The Command Access PS1 Series is a 24 VDC linear power supply with 1 amp output, the PS204/204B is a linear supply at 2 amps and 24 VDC, and the PS210 is a UL 6E/CSA linear supply with 1.5 amps at 24 VDC and boost circuitry. Those are single voltage 24 VDC units. The Securitron AQD4 is a switching design, field selectable between 12 and 24 VDC, rated up to 82 percent efficiency, and it tolerates brownout or overvoltage input within plus or minus 15 percent of nominal, which matters where the incoming 115 VAC is unsteady.
15) Is the RCI DKPS-2A the same thing as a Securitron AQD4 with distribution board?
They cover the same job at different capacity. The RCI DKPS-2A is a power supply with 8 outputs at 12/24 VDC and 2 amps for access control systems, so it matches the AQD4 on selectable voltage and on the eight output count of the larger AQD distribution board. The difference is the amp budget behind those outputs: the Securitron AQD4 supplies 4 amps continuous at 12 or 24 VDC, and its distribution boards are configured with 0, 1, 2 or 8 relays and either glass or PTC Polyswitch fusing at 1 or 2 amps per output.
16) What is a simpler dual voltage option if I do not need the distribution board on a Securitron AQD4?
If the job is one supply feeding a couple of devices with no distributed fusing, the SDC 631 Series is a 1.5 amp regulated and filtered DC power controller with dual voltage selection, and the SDC 620 Series is a 1 amp version of the same regulated and filtered dual voltage arrangement. The Von Duprin PS902 is a 2 amp 12/24 VDC field selectable base power supply. The Securitron AQD4 pairs its 4 amp dual voltage output with a distribution board carrying 4 or 8 outputs and 0 to 8 relays, which is what you are paying for when the door count justifies it.
How fast can I get the Securitron AQD4-8F1 delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Securitron AQD4-8F1 come with a warranty?
Absolutely. The Securitron AQD4-8F1 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Securitron AQD4-8F1?
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