When you're shopping for industrial power supplies transformers, the first decision isn't brand; it's power scale. The PULS ML50.102 and the Used & Tested REXROTH HMV01.1E-W0030-A-07-NNNN are both power supplies, but they sit at opposite ends of the output range. One is built for cabinet electronics; the other is built for drive systems. Picking based on price alone would be a mistake, and picking based on the word "power supply" alone would be just as costly.
Quick verdict
If your load is a small control cabinet, the PULS ML50.102 is the clear match. If your load is a large drive or machine control system, the Rexroth HMV01.1E is the unit to build around. Match the supply to the load, not the other way around.
Comparison at a glance
| Product | Listed Price | Condition | Power Output | Best Fit |
|---|---|---|---|---|
| PULS ML50.102 DIN Rail Power Supply 12-15V DC 4.2A 50W Industrial PSU | USD 61.22 | New | 12-15V DC adjustable, 4.2A, 50W | Compact control-cabinet power |
| Used & Tested REXROTH HMV01.1E-W0030-A-07-NNNN Control Power Supply | USD 2,474.68 | Used & Tested | 30kW, 400-480V input, 48-62Hz | High-power servo and drive power |
The listed price spread runs from $61.22 up to $2,474.68, and that gap reflects a real difference in output capability. The table should make the choice easier: if your load is measured in watts, the PULS is the practical route. If your load is measured in kilowatts, the Rexroth is the one that can actually carry it.
Where the PULS ML50.102 wins
The PULS wins on price and on the kind of load it is built for. A buyer with a small panel gets a low-cost supply without paying for power it will never use.
Where the REXROTH HMV01.1E wins
The Rexroth wins where the load is large. A machine with servo drives and heavy control circuitry needs the scale that the Rexroth provides, and the warranty coverage makes that scale less risky.
Product notes
PULS ML50.102 DIN Rail Power Supply 12-15V DC 4.2A 50W Industrial PSU
The PULS ML50.102 makes sense when you need clean, adjustable 12-15V DC power on a DIN rail. It is a new unit from PULS, and the 4.2A / 50W output is enough for factory automation controls, instrumentation, and smaller industrial machines. The unit keeps a small footprint, so it can fit into a panel without eating up a lot of space. The main limitation is scale: this supply tops out at 50W, so it will not feed a multi-kilowatt drive or a large motor controller. If your load stays under that threshold, this is a clean fit. For anything larger, you need to move up to the high-power class.
Used & Tested REXROTH HMV01.1E-W0030-A-07-NNNN Control Power Supply
For high-power loads, the Rexroth HMV01.1E-W0030-A-07-NNNN is the answer. It is specified with an output power of 30kW, an input voltage of 400-480V, and a frequency rating of 48-62Hz, which places it in servo drive and large machinery applications rather than small control cabinets. The condition is used but tested, and a two-year warranty is included, which adds a safety net for an expensive industrial component. The evident limitation is the large price step and the used condition. If your application only needs a few amps of DC power, this unit is far beyond both the power envelope and the budget. Match the 30kW output to a real high-power load, and the cost makes sense.
Final choice by use case
If you are outfitting a control cabinet with low-voltage DC loads, choose the PULS ML50.102. It is sized for the kind of loads that sit inside a panel. If you are maintaining or building a high-power drive system, the REXROTH HMV01.1E-W0030-A-07-NNNN is the one to source. Let the load demand decide, and the choice becomes clear.
