Choosing between a 24V DIN-rail supply and a 12V access-control supply can feel like comparing two different voltage worlds, but both belong in the same industrial power supplies transformers space. The real question is what your panel needs to feed: a 24V bus for rail-mounted controls, or 12V for electric locks and electromagnetic locks.
Quick Verdict
If your control cabinet uses DIN rail and needs a 24V feed, the Mean Well EDR-120-24 is the stronger match. If you're wiring electric locks or electromagnetic locks that run on 12V, the 3A 12V Door Access Control Supply fits the job better. The Mean Well is listed at USD 28.00 and the door supply at USD 12.55, so the spread between them is $15.45.
Price and Specs at a Glance
| Product | Listed price | Output | Input | Notable extra |
|---|---|---|---|---|
| Mean Well EDR-120-24 | USD 28.00 | 24VDC 5A 120W | 100-240VAC | DIN rail power supply |
| 3A 12V Door Access Control Supply | USD 12.55 | 12VDC 3A 30W | AC 110-240V 50-60Hz | 0-15s adjustable delay |
Where Each Product Wins
The Mean Well EDR-120-24 is the pick when you need a fixed 24V output with 5A of current in a DIN-rail form factor. That makes it a natural fit for industrial control panels where rail-mounted hardware is the norm.
The 3A 12V Door Access Control Supply is the pick when your load is a lock controller. It delivers 12V at 3A and includes the wiring extras that access-control installers rely on.
Product Notes
Mean Well EDR-120-24
The Mean Well EDR-120-24 is the one to reach for when your panel is built around DIN rail. Its 24VDC output and 5A rating deliver up to 120W, and the input accepts 100-240VAC, so it can work across a wide range of line inputs. The model number EDR-120-24 makes the output specification easy to confirm. If you already have a DIN-rail layout, this supply matches that mounting style without needing a separate enclosure. The limitation is voltage matching: it is a 24V unit, so it will not directly feed a 12V electric-lock circuit. If your equipment expects 24V, this is the supply that matches the rail format and the load.
3A 12V Door Access Control Supply
The 3A 12V Door Access Control Supply is built around lock-controller duty. It takes AC 110-240V at 50-60Hz and outputs 12V DC at 3A, which works out to 30W. The adjustable 0-15s delay is useful for door release timing, and the NO/NC wiring options come on a pluggable green terminal block for convenient hookup. A Chinese and English manual is included. What holds it back is the 12V 30W ceiling: this is not a general-purpose 24V supply for a DIN-rail system. Installation is required, so you will need to mount and wire it as part of the access-control setup. It fills the 12V lock-power role neatly.
Final Choice by Use Case
For a 24V control cabinet that runs on DIN rail and needs up to 5A of current, the Mean Well EDR-120-24 is the right call. For a 12V electric-lock installation where the controller is part of the door system, the 3A 12V Door Access Control Supply is the one to pick.
