Altronix AL400ULPD4CB Power Supply/Charger, Input 115VAC 60Hz at 3.5A, 4 PTC Outputs, 12VDC at 4A or 24VDC at 3A, Grey Enclosure

Motorized latch retraction draws a high inrush current at actuation, and the products built specifically for it are separate items. The BEST RPSMLR2 Series is a power supply made for motorized latch retraction exit devices, and the Command Access PS210 is a UL 6E/CSA linear supply with 1.5A at 24VDC that includes boost circuitry for that inrush. The AL400ULPD4CB is a general access control supply delivering 12VDC at 4A or 24VDC at 3A across four PTC outputs - excellent for strikes, maglocks, CCTV and fire alarm loads, but spec the MLR-rated unit when the exit device datasheet calls for one.

Two to watch. The ROFU 10305-LA is a power transfer hinge rated 1.5A at 42V - it moves power from frame to door and generates none, so it is a companion part to a supply rather than a replacement for one. The Command Access CAT Field Tester is a portable 12-24VDC unit that runs off DeWalt, Makita and Milwaukee tool batteries; it is a bench and jobsite testing tool for energizing hardware, not a permanently installed supply. The BEST ELR150 is also not a straight swap - it is a power supply control module, meaning it adds switching and control to a system rather than converting 115VAC as the AL400ULPD4CB does.

For a single opening it usually is. The AL400ULPD4CB is built to feed several devices from one enclosure, so it earns its place when you have multiple strikes, mags, readers or cameras on the same closet. For one door, a single-output unit like the Command Access PS1 (1 amp at 24VDC) or the Securitron AQD1 (12/24 VDC, 1 amp) is the simpler buy.

Delayed egress devices normally get specified with a supply matched to that hardware, for example the BEST PS161-6, which is listed for delayed egress exit devices with 120V input and 12/24V output at 6 amps. The AL400ULPD4CB is a general purpose multi-output access power supply, so confirm the device manufacturer's current draw and any required control inputs before pairing it with delayed egress.

No. It is a power supply and charger, not a sequencing controller. If the job needs logic, interlocks or timing, look at a controller such as the Detex 10-800 universal logic controller, which includes a 120VAC/24VDC supply and battery backup, or the ROFU 9126T mini supply with built-in time delay for a simple single-device delay.

It ships in a grey enclosure, so it is a wall-mount box you fasten in the IDF, electrical room or access control closet with the board already inside. No separate cabinet purchase is needed to get it on the wall.

Yes, it is a power supply and charger, meaning it maintains standby batteries so connected devices ride through a utility outage. Batteries themselves are a separate purchase and are sized to the load and the standby time your code official expects.

Yes, several single-door supplies cover that job. The Securitron AQD1 is a 12/24 VDC switching supply at 1 amp, the SDC 620 Series is a 1 amp regulated and filtered low voltage supply with dual voltage selection, and the Command Access PS1 is a 24VDC linear supply with 1 amp output. Any of those handles one strike where the AL400ULPD4CB's four PTC outputs and 12VDC 4A / 24VDC 3A capacity would sit largely unused. For a plug-in solution on a single opening with a timed release, the ROFU 9126T is a mini supply at 12 VDC / 1.5A with time delay built in.

Delayed egress hardware usually calls for a supply matched to the device. The BEST PS161-6 is built for delayed egress exit devices, with 120V input, 12/24V output and 6A capacity. For a delayed egress or logic-driven opening needing onboard control, the Detex 10-800 Series is a universal logic controller packaged with a 120VAC/24VDC power supply and battery backup. The AL400ULPD4CB is a power supply and charger with four PTC outputs and no egress logic built in, so on a delayed egress door it would sit behind a separate controller rather than replace one.

It is a commercial-duty unit, catalogued for access power control alongside the door hardware it feeds. Altronix power supplies of this family get used for general device power, CCTV, fire alarm and POIP loads.

The SDC line scales by amperage in a consistent family: the 631 Series is a 1.5 amp regulated and filtered DC power controller with dual voltage selection, the 632 Series is 2 amp, and the 634 Series is 4 amp, all with dual voltage selection. Standardizing on that family means one wiring approach at three capacities. The AL400ULPD4CB takes the other approach - one grey-enclosure box with four PTC-protected outputs off a single 115VAC 60Hz feed, delivering 12VDC at 4A or 24VDC at 3A, so one cabinet serves a cluster of doors instead of one supply per opening. Choose by how your riser is laid out: home-run to a closet favors the Altronix, supply-at-each-door favors the SDC units.