When you're choosing an industrial power supply for a control cabinet, the first question isn't just "what voltage do I need?" It's how much output the system actually draws, whether the unit will fit the panel, and whether you're willing to use a tested used supply or prefer an open-box new one. The REXROTH HMV01.1E-W0030-A-07-NNNN and the Puls QT20.241 answer those questions in opposite ways, so the right pick depends on which of those constraints matters most. Here is how to decide.
Quick verdict
The REXROTH HMV01.1E-W0030-A-07-NNNN is the heavy-duty answer when your system needs substantial output and you can accept a used-and-tested unit. The Puls QT20.241 is the compact, open-box control supply with a much lower listed price, and it makes more sense for a standard control panel or one machine. Neither option is wrong; they're built for different jobs.
Comparison table
| Product | Listed price | Price bar | Condition | Key specs |
|---|---|---|---|---|
| REXROTH HMV01.1E-W0030-A-07-NNNN Control Power Supply | USD 2,474.68 | Used & Tested | 400-480 V input | 30 kW output | 48-62 Hz | |
| Puls QT20.241 DIN Rail Power Supply | USD 225.00 | New - Open box | 480 VAC input | 24 VDC output | DIN rail |
Where each product wins
Rexroth wins when the load is heavy and continuous. This is a used-and-tested control supply with a wide input window, built for systems that need power on demand. Puls wins when you need a clean, low-voltage DC feed for controls and want a compact supply that won't dominate the cabinet. The open-box new condition is a plus if you'd rather not install hardware that has already been in service.
Product notes
REXROTH HMV01.1E-W0030-A-07-NNNN Control Power Supply
Rated at 30 kW with a 400 to 480 V input range, this REXROTH control power supply is built for heavy industrial loads. It comes as used and tested, and it includes 2 years of warranty, 60 days money back, and lifetime professional support, which takes some of the risk out of a used unit. The tradeoff is condition and cost: it's a used supply listed at USD 2,474.68, so the upfront investment is substantial. If your machine's control system actually needs this much output, the price and used status are easier to justify.
Puls QT20.241 Power Supply
With a 480 VAC input and a 24 VDC output, the Puls QT20.241 is a direct fit for standard control circuits. Its DIN rail form factor and new-open-box condition make it easy to accommodate in a cabinet without the wear of a pulled-from-service unit. It does have a narrower role, though: this is a compact 24-volt supply, not a high-output unit, so it can't cover equipment that needs kilowatt-scale power. At USD 225.00, it's also the lower-priced entry, which makes it the natural choice for a small machine or a modest panel.
Final choice by use case
If you need heavy output and can live with a used-and-tested control supply, the REXROTH HMV01.1E-W0030-A-07-NNNN is the unit to choose. For smaller control circuits where a compact supply, open-box condition, and a lower listed price matter more, the Puls QT20.241 is the better everyday pick. In short, let the size of the job decide: output capacity calls for the Rexroth; day-to-day control duty favors the Puls.
