Securitron AQD4 Switching Powe...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$385.00
$258.99
Securitron Securitron AQD4 Switching Power Supply 12/24 VDC 4Amp SEC-AQD24

Securitron AQD4 Switching Power Supply 12/24 VDC 4Amp

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Model: AQD4

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

$385.00
$258.99
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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:
No
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 – Frequently Asked Questions

1) Will the Securitron AQD4 power supply run both 12V and 24V locks, or do I have to pick a voltage when I order?
You pick it in the field, not on the order form. The AQD4 is a dual voltage switching supply, field selectable for 12 VDC or 24 VDC continuous output, so one part number covers both a 12V mag lock job and a 24V electric strike job. Set it at install to match the locking devices on the opening. It runs on 115 VAC input.
2) How many locks can I run off a Securitron AQD4, and how do I size it?
The AQD4 delivers 4 amps continuous at either 12 VDC or 24 VDC, and it supports up to 16 independently controlled power limited outputs. Add up the holding current of every device you intend to feed (mag locks, strikes, electrified trim) and keep the total under 4 amps at the voltage you select. Note that the same 4 amps is the budget at both 12V and 24V, so switching to 24V devices generally lets you put more doors on one supply.
3) Do I need to buy an enclosure for the Securitron AQD4, or does it come in a cabinet?
Both ways are sold. The AQD4 comes either with an enclosure or as a board only. Order board only when you are dropping it into an existing cabinet or a manufacturer's rack; order it with the enclosure for a standalone wall mount in an electrical or IT room. This is the one choice you have to make on the order form, and it is not field convertible after the fact if you have no cabinet on site.
4) Does the Securitron AQD4 have a fire alarm relay for releasing mag locks on alarm?
Not on this configuration. The AQD4 as supplied here carries no fire alarm relay, so if your locks must release on a fire alarm signal you need to handle that release elsewhere in the system. The AQD family is available with a single relay fire trigger or with individually triggered relayed outputs, so specify one of those arrangements when the code requirement for fail safe release lands on the power supply itself.
5) Is the Securitron AQD4 UL listed for access control power?
UL listed and supervised. Securitron also states that all combinations of AQ power supplies and distribution boards are UL listed, which matters when you are stacking distribution boards onto the supply and an inspector wants the assembly, not just the base unit, to be listed.
6) Can I use the Securitron AQD4 to power motorized latch retraction exit devices?
Motorized latch retraction devices draw a heavy inrush at the moment of retraction and are normally fed from a supply built for that duty, such as the BEST RPSMLR2 Series power supply for motorized latch retraction exit devices. The AQD4 is a general dual voltage 4 amp switching supply at 12 or 24 VDC with an integrated battery charging circuit and up to 16 independently controlled power limited outputs; it is sized by continuous load, not by retraction inrush. Match the MLR device manufacturer's required supply for those openings and use the AQD4 for strikes, maglocks and general access control loads.
7) What is the closest 4 amp dual voltage power supply to the Securitron AQD4?
The SDC 634 Series is the nearest match on output. It is a 4 amp regulated and filtered low voltage power supply with dual voltage selection, the same 4 amp capacity and selectable-voltage arrangement the AQD4 provides at 12 or 24 VDC. The AQD4 is a switching supply, while the SDC 634 is described as regulated and filtered, so the two get to the same current by different topologies. If the panel drives maglocks or strikes totaling under 4 amps at either voltage, both cover the load.
8) I need more than 4 amps at 24 volts. What should I use instead of the AQD4?
Two peers go past 4 amps. The Altronix AL1024ULACMCB is a power supply and access power controller taking 115VAC 60Hz input at 4.2A and delivering 24VDC at 10A across 8 PTC outputs in a grey enclosure. The BEST PS161-6 takes 120V input and gives 12/24V output at 6A capacity, built for delayed egress exit devices. The Altronix is fixed at 24VDC; the BEST PS161-6 keeps the 12 or 24 volt choice the AQD4 gives you.
9) Will the Securitron AQD4 keep the doors powered during an outage, and what batteries does it take?
There is an integrated battery charging circuit on board, and it supports up to two sealed gel, AGM, or wet lead acid batteries. The charging circuit is built to prevent overvoltage reaching the locking devices, which is what protects mag locks and strikes from being cooked by a raw charging voltage. Batteries themselves are a separate purchase from the supply.
10) Can I mount an access control power supply in an unheated parking garage or a rooftop mechanical room?
The AQD4 is rated for an operating temperature of -4 to 122 degrees F (-20 to 50 degrees C), which covers most unconditioned garages, vestibules, and mechanical rooms in North American climates. It also tolerates brownout or overvoltage input within plus or minus 15 percent of nominal, so a building with dirty or sagging line power is not automatically a problem. Keep in mind that batteries in cold spaces lose capacity even where the supply itself is fine.
11) What is the difference between a switching power supply like the Securitron AQD4 and a linear one for access control?
The AQD4 is a switching supply, and Securitron rates it up to 82 percent efficiency with a low ripple design as low as 240 mV peak to peak. Switching designs run cooler and waste less power at higher amperages, which is why they dominate at the 4 amp and up multi door end. Linear supplies are still common on small single door jobs, and ZenSupply carries several: the Command Access PS1 at 1 amp 24VDC, the PS204/204B at 2A 24VDC with battery backup, and the PS210 at 1.5A 24VDC. If you are powering one strike, a linear unit is the simpler buy; if you are feeding a bank of doors, the switching unit is the right class of product.
12) I am powering one electric strike on a single door. Is a 4 amp supply overkill?
For one strike, yes, it usually is. The AQD4 is built around 4 amps and up to 16 power limited outputs, which is a multi door distribution product. For a single opening look at a 1 to 2 amp unit instead: the SDC 620 Series at 1 amp with dual voltage selection, the Adams Rite PS-1 at 1 amp 12/24 VDC with battery backup, or the SDC 632 Series at 2 amps. Buy the AQD4 when you are feeding a bank of doors from one cabinet or expect to add openings later.
13) How does the Von Duprin PS902 compare with the Securitron AQD4?
The PS902 is a base power supply rated 2A at 12/24 VDC field selectable for access control and carries a Grade 1 rating. The AQD4 is field selectable at 12 or 24 VDC as well but delivers 4 amps continuous and supports up to two sealed gel, AGM or wet lead acid batteries through its integrated charging circuit. Both are field selectable; the difference a designer feels is current headroom, and the PS902 is a base unit that takes option boards for expansion.
14) What do I use if I need multiple controlled outputs but only 2 amps of load?
The RCI DKPS-2A is a power supply with 8 outputs at 12/24VDC and 2A for access control systems. It gives you distributed outputs on a smaller current budget, where the AQD4 supports up to 16 independently controlled power limited outputs at 4 amps of 12 or 24 VDC. Count the doors first: if the output count is what you need rather than the current, the DKPS-2A covers 8 of them.
15) Is a plug in transformer like the ROFU 9126T an alternative to the AQD4?
No. The ROFU 9126T is a plug in mini power supply, 12 VDC at 1.5A with time delay, sized for a single opening and fixed at 12 volts. The AQD4 is a UL listed supervised unit, field selectable for 12 or 24 VDC at 4 amps, with an integrated battery charger and thermal shutdown with auto restart. Use the 9126T where one strike needs a timed release from a wall outlet; use the AQD4 where a supervised, battery backed system supply is called for.
16) What looks like a power supply substitute for the AQD4 but is not one?
Two items in the same aisle do a different job. The ROFU 10305-LA/10306-LA is a tamper resistant power transfer hinge rated 1.5A at 42V in a plastic white finish - it carries power through the door edge, it does not generate it. The Command Access CAT Field Tester is a 12-24VDC portable power supply compatible with DeWalt, Makita and Milwaukee batteries, a bench and field tool for proving a device works, not a permanent building supply. Neither replaces the AQD4 as the system power source at 12 or 24 VDC.
17) I need a fire alarm relay on the power supply. Which unit should I be looking at?
The Securitron AQD Series is available with a single relay fire trigger or individually triggered relayed outputs, so specify that configuration when the maglocks have to drop on alarm. Among the alternatives, the Detex 10-800 Series is a universal logic controller with a 120VAC/24VDC power supply and battery backup, which brings logic and supply together in one unit, and the BEST ELR150 Series is a power supply control module for electronic access control. Confirm the fire trigger option on the order rather than assuming a base board carries it.
18) I ordered the AQD4 board only. What if I need it in a cabinet instead?
The AQD4 comes two ways, with enclosure or board only, so the cabinet is an ordering choice on the same supply rather than a different model. If you are comparing against a peer that ships enclosed, the Altronix AL1024ULACMCB comes in a grey enclosure and the Locknetics LP Series is supplied with an enclosure. Board only suits dropping the supply into an existing access control cabinet; take the enclosure version when the supply is mounting on its own in a closet or riser.
19) My system runs 12 volts only. Do I still need a dual voltage supply like the AQD4?
Not necessarily. The Aiphone AC-PS1250 is a UL listed 12V DC 5A power supply for AC Series access control kits, and the ROFU 9102-12D UL / 9102-24D takes 10/120VAC 60Hz input in fixed 12 or 24 volt versions ordered separately. The AQD4 is field selectable for 12 or 24 VDC on one unit, which is what you want when a facility standardizes on a single stocked spare that fits either voltage or when a future retrofit may move to 24 volts.
20) Does the AQD4 charge batteries, or do I need a separate backup unit?
The AQD4 has an integrated battery charging circuit that prevents overvoltage on locking devices and supports up to two sealed gel, AGM or wet lead acid batteries, so the charger is on board. Peers that also bundle backup include the Adams Rite PS-1, a 1 amp 12/24 volt DC supply with battery backup, the Command Access PS204/204B at 2A 24VDC with battery backup, and the Detex 10-800 controller with battery backup. Batteries themselves are ordered separately from the supply in every case.
21) Which dual voltage supply do I standardize on across a portfolio of buildings?
The practical shortlist is the Securitron AQD4 at 4 amps of field selectable 12 or 24 VDC with an integrated charger and up to 16 power limited outputs, and the SDC family, which steps 1 amp with the 620 Series, 1.5 amp with the 631 Series, 2 amp with the 632 Series and 4 amp with the 634 Series, all with dual voltage selection. Standardizing inside one dual voltage family means a single stocked spare answers a 12 volt strike or a 24 volt maglock, and technicians set the same jumper on every site.
22) What protects the Securitron AQD4 if an installer shorts a lock lead or reverses the battery?
A circuit breaker on board protects against overcurrent and reverse battery faults, so a miswired battery on a service call does not destroy the unit, and there is thermal shutdown protection with automatic restart if the supply overheats. Outputs are power limited, up to 16 of them independently controlled, which keeps a fault on one door from taking the whole cabinet down.
23) Is the Securitron AQD4 suitable for a commercial building, or is it a residential unit?
It is a commercial access control power supply, UL listed and supervised, on 115 VAC input with 12 or 24 VDC output. That puts it in the class of gear a security integrator installs in a multi tenant office, school, or hospital, feeding mag locks and strikes across multiple openings from one cabinet, rather than anything you would hang in a house.
How fast can I get the Securitron AQD4 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
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 come with a warranty?
Absolutely. The Securitron AQD4 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?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Securitron AQD4 from ZenSupply?
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