When you are shopping for industrial power supplies transformers, choosing between a high-capacity control power supply and a small door access supply can feel like comparing a main breaker to a doorbell. In some ways it is. The real question is what your system needs: a regulated high-voltage feed for heavy automation equipment, or a low-voltage DC source for electric locks and access controllers? This head-to-head breaks down the REXROTH HMV01.1E-W0030-A-07-NNNN and the 3A 12V Power Supply Control for Door Access Control so you can match the right unit to the job.
Quick Verdict
If your cabinet runs high-power controls, the REXROTH HMV01.1E-W0030-A-07-NNNN is the one that belongs on your shortlist. If you are powering a door access controller or electric lock, the small access control power supply is the straightforward choice. These two units are not direct competitors, and the price gap reflects that: the REXROTH unit sits at the high end of the range, while the door access supply sits at the low end.
Comparison Table
| Product | Price | Condition | Rated Output |
|---|---|---|---|
| Used & Tested REXROTH HMV01.1E-W0030-A-07-NNNN Control Power Supply | USD 2,474.68 | Used | 30 kW |
| 3A 12V Power Supply Control for Door Access Control, Access Control Power Supply | USD 12.55 | New | DC 12V, 3A (30 W) |
Where Each Product Wins
Choose the REXROTH unit when you are repairing or building an automation cabinet that needs a high-power supply rail and the kind of power that drives larger controls.
Choose the door access supply when you are wiring a low-current lock circuit, need pluggable terminals, and want a fresh component rather than a pre-owned one.
Product Notes
Used & Tested REXROTH HMV01.1E-W0030-A-07-NNNN Control Power Supply
This is a used-and-tested REXROTH control power supply from the HMV01.1E family. Its design is aimed at industrial automation, where a cabinet may need to feed multiple drive components from a common 400-480 V bus. The used condition is the first thing to weigh: it has been tested, but it is not new. The package includes a two-year warranty and a 60-day money-back window, which helps when you are buying a pre-owned power component. Choose this unit when you are replacing a failed supply in an existing system that expects this REXROTH model. The limitation is investment and scale: it is priced at USD 2,474.68, and it is overkill for any door access or small control circuit.
3A 12V Power Supply Control for Door Access Control, Access Control Power Supply
This grey access control power supply is a new, compact module for door access systems. It is built for electric locks and electromagnetic locks, with a pluggable green terminal block for tidy wiring and a 0-15 second adjustable delay for lock release. That delay is the kind of practical feature you want when setting up a single door or a small group of locks. Choose it when the job is a low-voltage control circuit and you want a fresh unit ready to wire. The limitation is capacity: this module is meant for low-current lock hardware, not for driving larger automation loads. At USD 12.55, keeping a spare on hand is simple, but do not expect it to feed a high-power cabinet.
Final Choice by Use Case
For high-power industrial controls, the REXROTH HMV01.1E-W0030-A-07-NNNN is the unit to specify when your input bus is 400-480 V and your load needs 30 kW. It is backed by the stated warranty, which matters if you are replacing a failed power supply on a critical line.
For door access work, the door access power supply is the better fit. It is compact and matched to electric and electromagnetic locks. It also sits at the low end of the price range, so stocking a spare is easy to justify.
