# Keysight E3630A 35W Triple-Output DC Power Supply (Pre-Owned) # Keysight E3630A 35W Triple-Output DC Power Supply (Pre-Owned) ## Key Features At A Glance - Linear DC power supply with multiple isolated outputs in a compact benchtop unit - Available in dual-output (E3620A) or triple-output (E3630A) configurations - Tight 0.01% + 2 mV line and load regulation - Low normal-mode noise under 350 μVrms over 20 Hz to 20 MHz - Common-mode current under 1 μArms to minimize power-line current injection - Separate digital panel meters display voltage and current simultaneously - 10-turn voltage and current controls for fine setpoint adjustment - Overload and short-circuit protection for the connected device under test The Keysight E3620A and E3630A are non-programmable, multiple-output linear DC power supplies built for the bench. They deliver the performance of system power supplies at a modest price, providing clean power with excellent regulation and fast transient response. By packing multiple supplies into one compact unit, they conserve bench space while supplying well-regulated DC to the circuits under test. These benchtop supplies are intended to satisfy most bench requirements, supplying clean, well-regulated DC for precision circuitry. The E3630A's auto-tracking feature makes it straightforward to adjust the supply for circuits requiring balanced voltages, letting a single control set the +20 V and –20 V outputs together. Both models protect the device under test against overload and short-circuit damage. A DC power supply provides controlled, adjustable voltage and current to power and characterize electronic circuits during design and test. ValueTronics stocks and holds its own inventory in a 20,000 square-foot secure warehouse at 1675 Cambridge Drive in Elgin, Illinois. Every pre-owned unit is inspected and functionally verified in-house before it ships, while new units ship factory-sealed exactly as received from the manufacturer. ## Brand Heritage Keysight Technologies traces its roots to Hewlett-Packard, founded in 1939. Hewlett-Packard's test and measurement business was spun off as Agilent Technologies in 1999, and that measurement business was established as Keysight Technologies in 2014. ## Compare Other Models in This Series The E3620A and E3630A are the multiple-output, non-programmable members of the E3600 Series, delivering the performance of system power supplies in a low-cost benchtop form. Both pack multiple isolated outputs into a single compact unit and share the same core regulation, noise, and protection characteristics. The two models differ primarily in how many outputs they provide and how those outputs are configured — a dual-output design versus a triple-output design with an auto-tracking feature for balanced supply rails. Each model below links to its own dedicated product page with condition-matched pricing for the pre-owned unit you select. Review the comparison table to confirm the output configuration that fits your bench before choosing a model. The 50-watt E3620A offers two completely independent and isolated 0 V to 25 Vdc outputs, each rated to a maximum of 1 A, with 10-turn CV/CL control on each output. It is the model that supports the side-by-side rackmount kits and the 1CM/34190A rackmount option. The 35-watt E3630A offers three outputs — a 0 to 6 V output rated up to 2.5 A and 0 to +20 V and 0 to –20 V outputs each rated 0.5 A — and adds an auto-tracking feature that adjusts the +20 V and –20 V outputs together, tracking to within 1 percent. See the comparison table for the per-model output ratings, meter resolution, and dimensions. Model Outputs Output Power DC Output Rating **E3630A** 3 35 W +6 V, 2.5 A; ±20 V, 0.5 A E3620A 2 50 W 25 V, 1 A (×2) Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below. ## Accessories Supplied - Product reference CD - Power cord ## Product Core & Specifications Specification Value Features Output configuration Tracking, CV, CL (± 20 V) CV, CF (+6 V) Number of outputs 3 Number of output ranges 1 DC output rating +6 V, 2.5 A; +20 V, 0.5 A; –20 V, 0.5 A Load and line regulation < 0.01% + 2 mV Ripple and Noise (20 Hz to 20 MHz) Normal mode voltage < 350 μVrms, < 1.5 mVpp Transient response time < 50 μsec following a change in output current from full load to half load for output to recover within 15 mV Meter accuracy ± 0.5% + 2 counts at 25 ºC ± 5 ºC Supplemental Characteristics Control mode CV/CL (± 20 V), CV/CF (+ 6 V) Common mode current < 1 μArms Meter resolution, voltage 10 mV Meter resolution, current 10 mA Temperature coefficient per ºC, voltage < 0.02% + 1 mV Output drift, voltage Less than 0.1% + 5 mV total drift for 8 hours after initial warm-up of 30 minutes Output drift, current N/A Temperature range Derate output current 50% between 40 ºC to 55 ºC Cooling Convection cooling Isolation ± 240 Vdc AC input 100 Vac ± 10% (opt. 0E9); 115 Vac ± 10% (std); 230 Vac ± 10% (opt. 0E3); 47–63 Hz Weight 3.8 kg (8.4 lbs) net, 5.1 kg (11.3 lbs) shipping Size (H x W x D) 88.1 mm H x 212.3 mm W x 318.4 mm D (3.5” H x 8.4” W x 12.5” D) Warranty Three year for E3600 Series power supplies; three months for standard shipped accessories Product regulation Certified to CSA 22.2 No. 231; conforms to IEC 1010-1; carries CE mark; complies with CISPR-11, Group 1, Class A, KC South Korean EMC Mark, Canadian ICES/NMB-001, Australian C Tick Mark > **Important:** Output current is derated 50% between 40 ºC and 55 ºC. Isolation: ±240 Vdc. > **Important:** Test leads are not included with the base unit; standard shipped accessories are only a product reference CD and power cord. The E3600A-100 Test lead kit is available separately (see options). > **Important:** Rackmounting with the 1CM or lock-link/flange kit requires Keysight or customer support rails (Keysight Support Rails-E3663AC). > Usage tip: add the E3600A-100 test lead kit for bench connections to the device under test. ## About this Pre-Owned unit This pre-owned unit is inspected and functionally verified in-house before it ships and is backed by our pre-owned warranty. To confirm its exact condition, firmware revision, installed options, or included accessories for your application before ordering, contact our Test Architects. - Warranty included - Functional verification included - Standard Calibration Upgrade Options: No Calibration Required, NIST Traceable, Z540.1 or ISO 17025 with Data, Z540.3 Guardbanding with Data. - Note that unnecessary accessories may not be included (contact Test Architect to confirm). 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:** 495.0 USD - 670.0 USD - **Vendor:** Keysight Technologies - **Type:** Dc Supply - **Tags:** Agilent, Agilent Keysight, DC Power Supply, Dc Supply, E3630, E3630A, Inc., Keysight, Keysight Technologies, Manufacturers, Model 3630, Power Supplies & Loads, Pre-Owned, product_manual_group_1, Product_used ## Variants | Variant | Price | Available | |---------|-------|-----------| | None | 495.00 USD | In stock | | NIST Traceable | 600.00 USD | In stock | | NIST Traceable with Full Data | 621.00 USD | In stock | | ISO IEC 17025 Accredited | 670.00 USD | In stock | ## Images - Keysight E3630A 35W Triple-Output DC Power Supply (Pre-Owned) --- > Source: [ValueTronics](https://valuetronics.com/products/e3630a-agilent-dc-power-supply-used) > Updated: 2026-06-03