RCI DKPS-4A Power Supply with ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$601.00
$408.04
RCI DKPS-4A Power Supply with 8 Outputs 12/24VDC at 4A and Electronic Over-Current Protection

RCI DKPS-4A Power Supply with 8 Outputs 12/24VDC at 4A and Electronic Over-Current Protection

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Model: RCI-DKPS-4A

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

$601.00
$408.04
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RCI DKPS-4A Power Supply with 8 Outputs 12/24VDC at 4A and Electronic Over-Current Protection

Professional Access Control Power Distribution Solution

The RCI DKPS-4A is a professional-grade power supply designed to convert 120-240 VAC at 50/60Hz into continuous 12 or 24VDC power outputs at 4A capacity. This DKPS Series unit features 8 voltage outputs with electronic over-current protection and includes a power distribution controller board with supervisory monitoring capabilities. Each output delivers maximum 2.0A with electronic over-current protection set at 4A, providing reliable power distribution for access control and egress door applications.

Professional Features & Benefits

  • Dual Voltage Output: Selectable 12 or 24VDC voltage outputs provide flexibility for various access control system requirements.
  • High-Capacity Distribution: 8 voltage outputs with 4A total capacity and individual 2.0A maximum per output for multiple device support.
  • Electronic Over-Current Protection: Built-in protection set at 4A prevents damage from overload conditions and ensures system reliability.
  • Universal Input Compatibility: 120-240 VAC input at 50/60Hz accommodates various electrical systems and international applications.
  • Advanced Supervisory Monitoring: Dual supervisory outputs (AC power fail & battery fail) plus power distribution controller outputs (DC Fail & status) with Form C relay contacts.
  • Field Selectable Configuration: Fail-safe/fail-secure operation can be configured in the field to match specific security requirements.
  • Standby Battery Ready: Multiple standby battery options available for continuous power during AC power failures.
  • Commercial-Grade Construction: Engineered for demanding commercial access control applications requiring reliable power distribution.

Technical Specifications

  • Commercial/Residential: Commercial
  • Current: 4A
  • Department: Door Hardware
  • Fail-Safe/Fail-Secure: Field Selectable
  • Product Category: Electronic Access Controls
  • Product Group: Electronic Access Controls
  • Product Subgroup: Controllers, Power Supplies and Transformers
  • Product Type: Power Supplies
  • Product Voltage: 12/24VDC
  • Series: DKPS
  • Subcategory: Controllers, Power Supplies and Transformers

Installation & Operation

  1. Verify electrical requirements match available power supply. Confirm 120-240 VAC at 50/60Hz input power and current capacity before proceeding.
  2. Disconnect power supply before beginning installation. Follow all applicable electrical codes and safety procedures.
  3. Mount the unit in the specified location ensuring adequate clearance for wiring access, ventilation, and future service requirements.
  4. Route and connect wiring according to manufacturer wiring diagrams. Use appropriate wire gauge and connectors for the application.
  5. Configure operational settings including fail-safe/fail-secure operation and voltage selection (12 or 24VDC) per application requirements.
  6. Restore power and test all functions including normal operation, supervisory monitoring outputs, and integration with connected access control systems.
  7. Complete final inspection and document settings. Refer to manufacturer documentation for complete wiring diagrams, programming instructions, and troubleshooting.

Professional Applications

  • Commercial Building Access Control Systems
  • Multi-Door Electronic Lock Networks
  • Card Reader and Keypad Power Distribution
  • Electric Strike and Magnetic Lock Systems
  • Exit Device Electrification Projects
  • Integrated Security System Power Management
  • Emergency Access Control Backup Systems

Why Choose RCI Quality?

RCI DKPS Series power supplies deliver professional-grade reliability with electronic over-current protection and comprehensive supervisory monitoring for demanding commercial access control applications. The DKPS-4A features field-selectable fail-safe/fail-secure operation and standby battery compatibility for continuous operation during power outages. Engineered for commercial applications where dependable power distribution and system monitoring are essential for security and access control performance.

Manufacturer Resources

RCI Product Catalog

Product Specs

Series:
DKPS
Product Group:
Electronic Access Controls
Product Subgroup:
Controllers, Power Supplies and Transformers
Subcategory:
Controllers, Power Supplies and Transformers
Commercial/Residential:
Commercial
Fail-safe / Fail-secure:
Field Selectable
Product Type:
Power Supplies
Current:
4A
Product Voltage:
12/24VDC
Product Category:
Electronic Access Controls
Department:
Door Hardware

RCI RCI-DKPS-4A – Frequently Asked Questions

1) How many locks can I run off an RCI DKPS-4A power supply?
The DKPS-4A has 8 voltage outputs, but the real limit is current, not output count. Total capacity is 4A, and each individual output is capped at 2.0A. So you can wire up to eight devices, provided the sum of their draw stays under 4A. Two 2A maglocks would use the whole budget; eight electric strikes at 0.3A each would not. Add up your device holding currents before you spec the panel, and remember inrush on latch retraction devices is much higher than holding draw.
2) Does the RCI DKPS-4A put out 12 volts or 24 volts?
Both, selectable. The DKPS-4A is a 12/24VDC unit and you set the voltage in the field during setup. One caution worth stating plainly: the voltage selection is for the supply, so every device fed by it runs at whatever you select. If you have 12VDC strikes and 24VDC maglocks on the same job, they cannot share one DKPS-4A at the same setting.
3) Can the DKPS-4A be set for fail-safe locks and fail-secure locks?
Fail-safe/fail-secure operation on the RCI DKPS-4A is field selectable, so the same unit covers maglocks and fail-safe electric strikes that must release on alarm as well as fail-secure hardware that stays locked. You configure it during commissioning rather than ordering a different part number. Check your local egress and fire alarm requirements for the opening; the panel will do either, but code decides which one the door needs.
4) What happens to the doors if the DKPS-4A loses AC power?
Two things matter here. The DKPS Series unit accepts standby batteries, so with batteries fitted the DC outputs keep running through an AC outage. Second, it reports the condition: there are dual supervisory outputs for AC power fail and battery fail, plus DC fail and status outputs from the distribution controller board, all on Form C relay contacts. Those tie back to an access panel or alarm system so someone knows the supply is on battery instead of finding out at the door. Batteries are a separate order.
5) What should I use instead of the DKPS-4A if 4 amps is not enough for my door count?
Step up to a higher-current unit. The Altronix AL1024ULACMCB is a power supply and access power controller with 115VAC 60Hz input at 4.2A and eight PTC outputs at 24VDC 10A. The Securitron AQS1210 is a 12 VDC 10 amp switching supply, and the BEST PS161-6 is a 120V input, 12/24V output unit with 6A capacity. Note the difference in voltage flexibility: the AL1024ULACMCB output is stated at 24VDC and the AQS1210 at 12 VDC, while the DKPS-4A and the PS161-6 both cover 12 and 24V.
6) I only need to power one electric strike, not eight devices. What is a simpler alternative to the DKPS-4A?
For a single opening, the smaller single-supply units cover it. The SDC 620 Series is a 1 amp regulated and filtered low voltage power supply with dual voltage selection, the Securitron AQD1 is a 12/24 VDC 1 amp switching supply, and the Adams Rite PS-1 is a regulated 1 amp 12/24 volt DC supply with battery backup. The Command Access PS1 Series is 24VDC only at 1 amp, so it suits a 24V device rather than a 12V one. The DKPS-4A is built around eight outputs and a power distribution controller board with supervisory monitoring, which is capacity aimed at multi-door systems.
7) Will the RCI DKPS-4A run a motorized latch retraction exit device?
Motorized latch retraction draws an inrush that manufacturers address with a dedicated supply, and the BEST RPSMLR2 Series is built specifically as a power supply for motorized latch retraction exit devices. The DKPS-4A is a general access control distribution unit delivering 12 or 24VDC with eight outputs at a maximum 2.0A each and 4A total, intended for access control and egress door applications such as card readers, electric strikes and magnetic locks. For an MLR exit device, size against the device manufacturer's inrush figure or specify the RPSMLR2.
8) What is a straight equivalent to the RCI DKPS-4A if I need 4 amps at 12 or 24VDC?
Two peers land in the same 4A dual-voltage territory. The SDC 634 Series is a 4 amp regulated and filtered low voltage power supply with dual voltage selection, and the Securitron AQL4 is a switching power supply rated 12/24VDC at 4/3 amps. The DKPS-4A itself is a 12/24VDC unit at 4A with field selectable fail-safe/fail-secure operation and eight outputs, so where the SDC 634 and AQL4 differ is in distribution: the DKPS-4A carries a power distribution controller board with eight outputs at a maximum 2.0A each, while the 634 and AQL4 are described as supply units rather than eight-output distribution boards.
9) Will the RCI DKPS-4A run on 208 or 240 volt building power?
Input is 120-240 VAC at 50/60Hz, so it will run on standard 120V North American circuits and on 208/240V single-phase feeds within that range, at either line frequency. That input range also covers 230V 50Hz international installations without a separate model.
10) What is electronic over-current protection on a power supply, and is it better than a fuse?
On the DKPS-4A, protection is set at 4A electronically rather than by a fuse you replace. A short or an overload on the load side shuts the output down instead of blowing a component, and once the fault is cleared the supply comes back without a truck roll for a fuse. That is the practical difference for a service tech maintaining a multi-door system. For comparison, the Altronix AL1024ULACMCB distributes its 8 outputs through PTC devices, another self-restoring approach.
11) Is the DKPS-4A just a power supply or does it distribute power to multiple doors too?
It is both. The RCI DKPS-4A includes a power distribution controller board, so the 8 outputs come off the same enclosure that converts the line voltage. You are not buying a transformer and a separate distribution module. That is the distinction from a single-output unit like the Command Access PS1, a 24VDC linear supply with one 1 amp output, which powers one device and nothing else.
12) How does the RCI DKPS-4A compare to the Von Duprin PS902?
Both are field-selectable 12/24 VDC supplies for access control, but they are sized differently. The Von Duprin PS902 is a 2A base power supply, and the DKPS-4A is 4A with 8 distribution outputs and supervisory monitoring built in. If you are electrifying a small number of Von Duprin exit devices and will add that brand's option boards, the PS902 is the native platform. If you want one panel distributing to several openings with AC fail and battery fail reporting, the DKPS-4A is the fuller distribution unit. A dual-voltage 4A alternative is the Securitron AQL4, a 12/24VDC switching supply at 4/3 Amp.
13) Do I need to order anything else with the DKPS-4A to get it working?
The unit ships with the power distribution controller board, so the supply and the distribution are one purchase. Two things are separate decisions: standby batteries, which the DKPS Series accepts in multiple options but which are not part of the supply itself, and the wiring to your devices, where you pick gauge and connectors for the run length and current. Plan the AC feed too, 120-240 VAC at 50/60Hz on its own circuit, disconnected while you install.
14) Which power supply should I specify for a delayed egress exit device instead of the DKPS-4A?
The BEST PS161-6 is described as a power supply for delayed egress exit devices, with 120V input, 12/24V output and 6A capacity. Delayed egress hardware is a specific load case, and that unit is designated for it. The RCI DKPS-4A is a commercial access control power distribution unit at 12/24VDC and 4A with eight outputs and field selectable fail-safe/fail-secure operation, aimed at multi-device access control and egress door power distribution rather than a named delayed egress device family.
15) What looks like a substitute for the DKPS-4A but is not actually a power supply?
A few items in the same electrified-hardware aisle carry similar names without doing the same job. The ROFU 10305-LA/10306-LA is a power transfer hinge rated 1.5A at 42V, which moves power through the door edge rather than generating it. The Command Access CAT Field Tester is a portable 12-24VDC unit that runs off DeWalt, Makita and Milwaukee batteries, made for bench and field testing. The Detex 10-800 Series is a universal logic controller that includes a 120VAC/24VDC power supply and battery backup, so it is a controller package rather than a multi-output distribution supply. The DKPS-4A converts 120-240 VAC at 50/60Hz into continuous 12 or 24VDC across eight outputs.
16) What is the closest alternative to the DKPS-4A in the 1.5 to 2 amp range for a two or three door job?
Several mid-range dual-voltage units fit a small door count. The SDC 631 Series is a 1.5 amp regulated and filtered DC power controller with dual voltage selection and the SDC 632 Series is the 2 amp version of the same regulated and filtered dual-voltage design. The Von Duprin PS902 is a 2A 12/24 VDC base power supply that is field selectable for access control, matching the DKPS-4A on field selectable configuration. The Command Access PS204/204B is a 2A 24VDC linear supply with battery backup, single voltage. The DKPS-4A sits above these at 4A with eight outputs.
17) If my access control kit needs a UL listed 12V supply, how does that compare to the RCI DKPS-4A?
The Aiphone AC-PS1250 is a UL listed 12V DC 5A power supply built for the AC Series access control kits, so it is matched to that system rather than to general distribution. The Command Access PS210 is a UL 6E/CSA linear supply at 1.5A at 24VDC with boost circuitry. The RCI DKPS-4A is a commercial unit at 12/24VDC and 4A with eight outputs and dual supervisory outputs for AC power fail and battery fail plus DC Fail and status contacts, which is the monitoring a multi-door head end usually wants reported back.
18) Which 4 amp power supply keeps working through an AC outage, the DKPS-4A or a battery backup unit?
The DKPS-4A is standby battery ready with multiple standby battery options for continuous power during AC failures, and it reports the condition through dual supervisory outputs for AC power fail and battery fail using Form C relay contacts. Among the peers, the Adams Rite PS-1 is a 1 amp 12/24 volt DC supply with battery backup and the Command Access PS204/204B is a 2A 24VDC linear supply with battery backup, both at lower current. The Detex 10-800 Series bundles a 120VAC/24VDC supply with battery backup inside a universal logic controller. The Securitron BPSS is a boxed solar power supply, a different power source entirely.
19) Is the DKPS-4A rated for commercial buildings or is it a residential unit?
Commercial. The DKPS-4A is built for commercial access control work, and the feature set reflects it: supervisory relay outputs back to a head end, 8-output distribution, and field-selected fail-safe or fail-secure operation. Typical placements are card reader and keypad power distribution, electric strike and maglock systems, and multi-door electronic lock networks in a building's security closet.
20) Is the ROFU 9126T or 9102 an alternative to the RCI DKPS-4A?
They serve much smaller loads. The ROFU 9126T is a plug in mini power supply at 12 VDC and 1.5A with time delay, which suits a single low-draw device where a built-in delay is wanted. The ROFU 9102-12D UL and 9102-24D run on 10/120VAC 60Hz input. The RCI DKPS-4A accepts 120-240 VAC at 50/60Hz and distributes 12 or 24VDC across eight outputs at 4A with electronic over-current protection set at 4A, so it is the choice when several devices need to be fed and monitored from one enclosure.
21) What is the difference between the RCI DKPS-4A and a control module like the BEST ELR150?
The BEST ELR150 Series is a power supply control module for electronic access control, a control element in a larger power arrangement. The Locknetics LP Series is offered as a 150 and 250 amp power supply with an enclosure. The RCI DKPS-4A is a complete unit: it converts 120-240 VAC at 50/60Hz to 12 or 24VDC, includes the power distribution controller board with supervisory monitoring, carries eight outputs with electronic over-current protection, and is field selectable for fail-safe or fail-secure operation. If the job needs conversion, distribution and monitoring in one place, that is the DKPS-4A's scope.
How fast can I get the RCI RCI-DKPS-4A 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 RCI RCI-DKPS-4A come with a warranty?
Absolutely. The RCI RCI-DKPS-4A 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 RCI RCI-DKPS-4A?
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