# Rohde & Schwarz HMP4030 32 V, 384 W Three-Channel Power Supply # Rohde & Schwarz HMP4030 32 V, 384 W Three-Channel Power Supply ## Key Features At A Glance - Two, three, or four galvanically isolated, floating output channels depending on model - Output voltage range of 0 V to 32 V on every channel across all four models - Channels combine in series or parallel for higher output voltage or current - Linear postregulation for low residual ripple (typ. <150 µV RMS, 3 Hz to 100 kHz) - Per-channel OVP, electronic fuse (OCP), and overtemperature protection (OTP) - Dual USB/LAN interface standard; RS-232/USB or GPIB (IEEE488) optional - EasyArb arbitrary voltage/current sequencing for individual or all channels - Per-channel sense lines and rear-panel connections for rack and system use The Rohde & Schwarz R&S HMP power supply family is a line of multi-channel programmable DC power supplies offered in two-, three-, and four-channel configurations across four models. Primarily designed for industrial use, these rugged instruments deliver up to 10 A of output current per channel and provide high efficiency with low residual ripple along with a comprehensive set of protection functions. The R&S HMP supplies are tailored for use in labs and system racks, where the electronically equivalent channels can power a wide variety of devices under test. As performance-class supplies, they suit both the lab bench and ATE applications, and they are frequently installed in 19-inch racks using the R&S HZ42 or R&S HZP91 rack adapters. Because each channel is galvanically isolated and floating, the channels can be combined to drive balanced circuitries such as +12 V/-12 V supplies, avoiding ground problems in complex DUTs. ValueTronics stocks and holds its own inventory in a 20,000-square-foot secure warehouse at 1675 Cambridge Drive in Elgin, Illinois. Holding our own stock means the instrument you order is on our shelves and ready to ship. ## Brand Heritage Rohde & Schwarz is an independent company headquartered in Munich, Germany, founded more than 80 years ago, and has operated under the Rohde & Schwarz name throughout its history. ## Compare Other Models in This Series The R&S HMP power supply family consists of four models in two power classes. The two-channel R&S HMP2020 and three-channel R&S HMP2030 deliver up to 188 W total output power, while the three-channel R&S HMP4030 and four-channel R&S HMP4040 offer a maximum of 384 W. All four models share the same 0 V to 32 V output voltage range on every channel, so any channel can be selected for a given application and each channel can be treated as a separate power supply. Across the family, all channels are galvanically isolated and floating, carry overload and short-circuit protection, and can be combined in series or parallel. The models share a common feature set that includes constant voltage and constant current modes, tracking and link functions, the EasyArb arbitrary function, per-channel sense lines, and a standard dual USB/LAN interface. Each model below links to its own dedicated product page with condition-matched pricing for the new configuration you select. Choose the channel count and power class that fits your application, then review that model's page for its specific specifications and availability. The models differ chiefly in channel count, per-channel current, and total power. The R&S HMP2020 provides two channels (channel 1 at 10 A/160 W, channel 2 at 5 A/80 W); the R&S HMP2030 provides three channels rated 5 A/80 W each; and the R&S HMP4030 (three channels) and R&S HMP4040 (four channels) provide 10 A/160 W per channel. Total output power is 188 W for the HMP2020/HMP2030 and 384 W for the HMP4030/HMP4040. Series and parallel combinations scale accordingly: in parallel operation the R&S HMP2020 and R&S HMP2030 reach 15 A, the R&S HMP4030 reaches 30 A, and the R&S HMP4040 reaches 40 A; in series operation the R&S HMP2020 reaches 64 V, the R&S HMP2030 and R&S HMP4030 reach 96 V, and the R&S HMP4040 reaches 128 V. The R&S HMP4030/HMP4040 also use a larger 240 × 128 pixel display and add a numeric keypad for value entry. See the comparison table that follows for the per-model values. Model Output Voltage Max Current/Channel Total Output Power **HMP4030** 0 V to 32 V 10 A 384 W HMP2020 0 V to 32 V 10 A (Ch1) / 5 A (Ch2) 188 W HMP2030 0 V to 32 V 5 A 188 W HMP4040 0 V to 32 V 10 A 384 W Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below. ## Accessories Supplied - Set of power cables - Quick start guide ## Product Core & Specifications Specification Value Outputs Number of output channels 3 Total output power max. 384 W Maximum output power per channel 160 W Output voltage per channel 0 V to 32 V Maximum output current per channel 10 A Maximum voltage in serial operation 96 V Maximum current in parallel operation 30 A Voltage ripple (3 Hz to 100 kHz) < 250 µV (RMS), typ. < 150 µV (RMS) Voltage ripple (3 Hz to 20 MHz) typ. < 1.5 mV (RMS) Current ripple < 1 mA (RMS) Load Regulation (load change from 10 % to 90 %) Voltage ±(% of output + offset) < 0.01 % + 2 mV Current ±(% of output + offset) < 0.01 % + 250 µA Load recovery time (to within ± 10 mV of set nominal voltage) < 1 ms Line Regulation (±10 % change in mains voltage) Voltage ±(% of output + offset) < 0.01 % + 2 mV Current ±(% of output + offset) < 0.01 % + 250 µA Programming Resolution Voltage 1 mV Current < 1 A: 0.2 mA; ≥ 1 A: 1 mA Programming Accuracy Voltage ±(% of output + offset) < 0.05 % + 5 mV Current ±(% of output + offset) < 0.1 % + 5 mA Output Measurements Measurement functions voltage, current Readback resolution — Voltage 1 mV Readback resolution — Current < 1 A: 0.2 mA; ≥ 1 A: 1 mA Readback accuracy — Voltage ±(% of output + offset) < 0.05 % + 5 mV Readback accuracy — Current ±(% of output + offset) < 0.1 % + 2 mA Temperature coefficient (per °C, 5 °C to 20 °C and 30 °C to 40 °C) — Voltage 0.01 % + 2 mV Temperature coefficient (per °C, 5 °C to 20 °C and 30 °C to 40 °C) — Current 0.02 % + 3 mA Sense function yes, for each channel Maximum sense compensation 1 V Ratings Maximum voltage to earth 150 V (peak) Maximum counter-voltage (same polarity connected to outputs) 33 V Maximum reverse voltage (opposite polarity connected to outputs) 0.4 V Maximum reverse current (for 5 minutes max.) 5 A Remote Control Mode Command processing time < 50 ms Protection Functions Overvoltage protection configurable for each channel Overcurrent protection (electronic fuse) configurable for each channel Response time (Iload > Iresponse × 2) < 10 ms Fuse linking (FuseLink function) yes Fuse delay time (configurable for each channel) 0 ms to 250 ms (10 ms increments) Overtemperature protection yes Special Functions — Arbitrary Function (EasyArb) Parameter voltage, current, time Maximum number of points 128 Dwell time 10 ms to 60 s Repetition continuous or burst mode, 1 to 255 repetitions Data memory non-volatile memory for three arbitrary functions and ten instrument settings Display and Interfaces Display 240 pixel × 128 pixel LCD Front panel connections (channel outputs) 4 mm safety sockets Rear panel connections connector block with 4 lines per channel Remote control interface (standard) dual interface LAN/USB Remote control interface (optional) dual interface USB/RS-232 (R&S®HO720); IEEE488 (GPIB) (R&S®HO740) General Data Operating temperature range +5 °C to +40 °C Storage temperature range –20 °C to +70 °C Humidity (noncondensing) 5 % to 80 % Mains nominal voltage 115 V/230 V (±10 %); CAT II Mains frequency 50 Hz to 60 Hz Maximum power consumption 600 W Mains fuses (115 V power source) 2 × T10H/250 V Mains fuses (230 V power source) 2 × T5H/250 V Dimensions (W × H × D) 285 mm × 136 mm × 405 mm (11.22 in × 5.35 in × 15.94 in) Weight 12.4 kg (27.3 lb) Rack installation R&S®HZP91 option Recommended calibration interval 1 year > **Important:** Maximum voltage to earth: 150 V (peak). > **Important:** All specifications are valid at 23 °C (–3 °C/+7 °C) after a 30 minute warm-up time. > **Important:** The instrument is supplied as standard with the R&S®HO732 dual USB/LAN interface; it can optionally be replaced by the R&S®HO720 (RS-232/USB) or R&S®HO740 (GPIB/IEEE488) interface, installed instead of the standard interface. > Recommended pairing: mount the R&S HMP2020/HMP2030 with the R&S HZ42 19-inch rack adapter, or the R&S HMP4030/HMP4040 with the R&S HZP91 rack adapter, for installation in 19-inch rack systems. ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application. **Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.** ## Details - **Price:** 3140.0 USD - **Vendor:** Rohde & Schwarz - **Type:** Dc Supply - **Tags:** DC Power Supply, Dc Supply, Factory New, HAMEG, HAMEG Instruments GmbH, HMP4030, Manufacturers, Model 4030, Power Supplies & Loads, Product_new, Rohde & Schwarz, Rohde & Schwarz GmbH & Co. KG, sync_12_12 ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 3140.00 USD | In stock | ## Images - Rohde & Schwarz HMP4030 32 V, 384 W Three-Channel Power Supply --- > Source: [ValueTronics](https://valuetronics.com/products/hmp4030-rohde-schwarz-dc-power-supply-new) > Updated: 2026-06-02