# Keysight N8739A 100 V/33 A 3.3 kW System DC Power Supply # Keysight N8739A 100 V/33 A 3.3 kW System DC Power Supply ## Key Features At A Glance - Output voltage from 8 V to 600 V and current from 5.5 A to 400 A across the 21-model series - 3300 W or 5000 W output in a compact 2U-high, 19-inch-wide package (up to 5200 W) - LAN (LXI Class C), USB 2.0, and GPIB interfaces standard for system and ATE integration - Built-in voltage and current measurement with simultaneous front-panel display - Over-voltage, over-current, and over-temperature protection plus under-voltage limit (UVL) - Connect up to 4 identical units in parallel or 2 in series for greater current or voltage - Flexible AC input: 208 V or 400 V 3-phase (230 V single-phase available on 3.3 kW models) - Built-in web server for browser-based remote control; SCPI and IVI-COM drivers standard The Keysight N8700 series is a family of affordable, single-output programmable system DC power supplies built into a compact 2 U package. The series comprises 21 models rated at either 3300 W or 5000 W, delivering stable output power with built-in voltage and current measurement. Across the family, output ranges span 8 V to 600 V and 5.5 A to 400 A, addressing a wide variety of simple DC power applications from a single product line. The N8700 series is positioned for R&D, design validation, and manufacturing engineers working in the aerospace/defense, automotive, component, and communications industries. Its system-ready feature set is intended to simplify and accelerate test-system development, while front-panel rotary knobs and buttons also make it straightforward to operate on the bench. Coarse or fine adjustments of output voltage, current, and protection settings can be made directly from the front panel, with LED indicators showing supply status and operating modes. ValueTronics stocks and holds its own inventory in a 20,000 sq ft secure warehouse at 1675 Cambridge Drive in Elgin, Illinois. This lets us match the right N8700 configuration to your voltage, current, and AC input requirements and ship it with the verification level appropriate to its condition. ## Brand Heritage Keysight Technologies traces its roots to Hewlett-Packard, whose test and measurement business was spun off as Agilent Technologies in 1999 and then established as a standalone company, Keysight Technologies, in 2014. ## Compare Other Models in This Series The Keysight N8700 series is a family of 21 single-output programmable system DC power supplies offered in two power classes — 3300 W (3.3 kW) and 5000 W (5 kW) — all housed in the same compact 2 U package. The series is described as a family of affordable basic system DC supplies for simple DC power applications, combining stable output, built-in measurement, and standard system interfaces. Within the family, models differ primarily by their voltage and current ratings rather than their feature set: the architecture, protection scheme, interfaces, and front-panel operation are common across the line, while each model targets a specific point in the 8 V to 600 V and 5.5 A to 400 A coverage range. Each model in the N8700 series is its own dedicated product page with condition-matched pricing. Select the specific new model whose voltage, current, and AC input option match your application before ordering, since these characteristics are fixed per model. The clearest division in the family is between the 3.3 kW models (N8731A through N8742A) and the 5 kW models (N8754A through N8762A). The 3.3 kW group spans 8 V/400 A up to 600 V/5.5 A, while the 5 kW group spans 20 V/250 A up to 600 V/8.5 A, with each model trading higher rated voltage for lower rated current at roughly constant output power. The 230 V single-phase AC input option is available only on the 3.3 kW models. Use the comparison table to match a model to your required output: each row lists the rated voltage, rated current, and maximum power for that model. Supplemental characteristics such as over-voltage protection range, ripple and noise, and programming resolution also scale with the model's ratings, so confirm the exact figures for the model and power class you intend to order. Model Output Voltage Output Current Output Power **N8739A** 100 V 33 A 3300 W N8731A 8 V 400 A 3200 W N8732A 10 V 330 A 3300 W N8733A 15 V 220 A 3300 W Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below. ## Accessories Supplied - Rack mount ears (standard) - Handles (standard) ## Product Core & Specifications Specification Value DC Output Ratings Voltage 100 V Current 33 A Power 3300 W Output Ripple and Noise CV p-p (20 MHz) 100 mV CV rms (5 Hz - 1 MHz) 25 mV CC rms 70 mA Load Effect CV load regulation 20 mV CC load regulation 11.6 mA Source Effect CV line regulation 12 mV CC line regulation 5.3 mA Programming Accuracy Voltage (0.05% + ) 50 mV Current (0.1% + ) 66 mA Measurement Accuracy Voltage (0.1% + ) 100 mV Current (0.1% + ) 99 mA Programming/Measurement Resolution Voltage 12 mV Current 4 mA Front Panel Display Accuracy (4 digits; ± 1 count) Voltage 500 mV Current 165 mA Output Response Time Up-prog response time 150 ms Down-prog response time (full-load) 300 ms Down-prog response time (no-load) 1500 ms Command response time 100 ms (typical) Load Transient Recovery Time Time < 1 ms Remote Sense Compensation Compensation 5 V Over-Voltage Protection Range 5-110 V Temperature Stability (over 8 hours, after 30 min warm-up) Voltage 50 mV Current 16.5 mA Temperature Coefficient (after 30 min warm-up) Voltage (from rated output voltage) 100 PPM/°C Current (from rated output current) 200 PPM/°C > **Important:** The AC input voltage option (208 V or 400 V 3-phase, or 230 V single-phase on 3.3 kW models) is selected at time of order and cannot be changed without returning the unit to Keysight and placing a new order. > **Important:** The N5740A rack mount slide kit is required for rack mounting; standard system rack-mounting hardware will not work. It is ordered separately and provides all the necessary hardware to rack mount an N8700 in only 2 U of rack space. > **Important:** The 230 V single-phase AC input voltage option (Option 230, line cords Opt 831/832) is available on the 3.3 kW models only. > **Important:** For greater output power, up to four identical units (same model number) can be connected in parallel, or two identical units in series using external protection diodes (see Output Terminal Isolation). 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:** 7620.0 USD - **Vendor:** Keysight - **Type:** Dc Supply - **Tags:** Agilent, DC Power Supply, Dc Supply, Factory New, Inc., Keysight, Keysight Technologies, Manufacturers, Model 8739, N8739, N8739A, Power Supplies & Loads, product_manual_group_3, Product_new ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 7620.00 USD | In stock | ## Images - N8739A Keysight Technologies DC Power Supply --- > Source: [ValueTronics](https://valuetronics.com/products/n8739a-keysight-dc-power-supply-new) > Updated: 2026-06-03