When you're choosing between a door access control power supply and an industrial DIN rail power supply, the decision usually comes down to voltage, current, and how you plan to mount the unit. The 3A 12V Access Control Power Supply is listed at $12.55, while the NEW NDR-120-24 Industrial DIN Rail Power Supply is listed at $44.99. Both are new units, but they are built for very different tasks.
Quick verdict
If you're wiring electric locks or electromagnetic locks and need a compact 12V supply with an adjustable delay, the 3A 12V Access Control Power Supply is the straightforward choice. If you're assembling a control cabinet that needs 24V DC and a DIN rail mount, the NDR-120-24 is the unit to pick.
Comparison at a glance
| Feature | 3A 12V Access Control Power Supply | NDR-120-24 Industrial DIN Rail Power Supply |
|---|---|---|
| Listed price | $12.55 | $44.99 |
| Output voltage | 12V DC | 24V DC |
| Output current | 3A | 5A |
| Mounting | Installation required | DIN rail mount |
| Notable feature | Adjustable delay 0-15s | Inrush current rating 5A |
| Best for | Door access control, electric locks | Industrial control panels |
Where each product wins
- The 3A 12V Access Control Power Supply wins for door access setups that need 12V power and a timing adjustment for locks.
- The NDR-120-24 DIN Rail Power Supply wins for 24V control circuits that need a rail-mounting supply with a higher 5A output.
Product notes
3A 12V Power Supply Control for Door Access Control, Access Control Power Supply
This 12V unit is built around the needs of door access systems. It accepts AC 110-240V and outputs DC 12V at 3A, which is enough for many electric locks and electromagnetic locks. The adjustable delay from 0 to 15 seconds is a practical touch when you want the lock to release for a short moment after an access event. The pluggable green terminal block makes wiring straightforward. One limitation is that its 12V output and 3A rating keep it focused on lower-power lock applications; it won't handle 24V industrial loads. If your project is door entry or access control, this unit's low price and relevant features make it the practical option.
NEW NDR-120-24 Industrial DIN Rail Power Supply ouput 24 Volt 5 Amp 240 Watt
This DIN rail power supply brings 24V DC at 5A to industrial control cabinets. The DIN rail mounting style is a clear advantage when you need to clip the supply onto a standard rail inside an enclosure. The unit is listed as new and includes a 5A inrush current rating, which can be relevant for applications that see a startup surge. The blue housing is a visual cue that this is an industrial-oriented component. The main limitation is that it outputs 24V, so it won't power 12V door locks directly. The higher price reflects its focused role in control panels rather than low-voltage access control. For 24V automation and control needs, this is the one to choose.
Final choice by use case
- For 12V electric lock and electromagnetic lock systems: Choose the 3A 12V Access Control Power Supply.
- For 24V industrial control panels and DIN rail mounting: Choose the NDR-120-24 Industrial DIN Rail Power Supply.
