Power Supplies
GXC804B-5K Series Regenerative AC/DC Power Source
Four-Quadrant AC/DC Source and Regenerative Load
GXC804B provides AC/DC source and regenerative-load operation for grid simulation, RLC/RCD load tests and bipolar DC work. The 4U family spans 5 to 22.5 kW, with single- or three-phase configurations selected by model.
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- Rated power
- 5 to 22.5 kW
- AC voltage
- 0 to 450 V L-N at 0.01 to 70 Hz
- DC voltage
- 0 to 636 V
- THD
- < 0.5% at DC to 400 Hz
Overview
GXC804B provides AC/DC source and regenerative-load operation for grid simulation, RLC/RCD load tests and bipolar DC work. The 4U family spans 5 to 22.5 kW, with single- or three-phase configurations selected by model.
Additional product details
The GXC804B-5K 4-quadrant architecture returns energy to the grid during load operation, reducing facility power consumption. The GXC804B-5K provides standard LAN, front-panel USB, Modbus, and SCPI communication, and OVP, OCP, OPP, and OTP protection.
Regeneration, harmonics and rack context
GXC804B-5K four-quadrant operation returns absorbed energy to the grid, so back-feed permission, site protection settings and the supply agreement have to be settled before a regenerative-load or PHIL bench can be commissioned. GXC804B-5K harmonic generation to the 100th order is only meaningful where that order still falls inside the DC to 1 kHz output bandwidth, so the usable harmonic depth falls as the programmed fundamental rises. A 4U chassis puts a four-quadrant AC and DC source into a bench-scale rack, which is what makes this platform practical as a PHIL amplifier standing next to the simulator rather than as a separate installation.
Key Capabilities & Applications
Frequency-dependent AC envelope
AC output is 0–450 V L-N at 0.01–70 Hz and 0–300 V L-N above 70 Hz to 1 kHz. DC output reaches 636 V; <0.5% THD applies from DC to 400 Hz.
Regenerative source/load operation
Four-quadrant operation returns absorbed energy to the grid. AC, DC and AC+DC output modes and CV / CC / CP / CR / bipolar DC controls support different DUTs.
Remote control and optional PHIL
LAN and USB support Modbus and SCPI. The -EXDA analog/digital I/O extension is optional and provides the PHIL interface.
Common applications
- Grid simulation and harmonic generation
- Regenerative AC/DC load testing
- Hardware-in-the-loop (HIL) simulation
- Power Hardware-in-the-Loop (PHIL) testing
Applications and test requirements
Grid simulation and harmonic generation
Regenerative AC/DC load testing
CR, CC, CP, rectification, RLC, and RCD load simulation.
Hardware-in-the-loop (HIL) simulation
Power Hardware-in-the-Loop (PHIL) testing
Technical Specifications
| Parameter | Specification |
|---|---|
| Rated power | 5 to 22.5 kW |
| AC voltage | 0 to 450 V L-N at 0.01 to 70 Hz; 0 to 300 V L-N at 70 Hz to 1 kHz |
| DC voltage | 0 to 636 V |
| Frequency range | DC, 0.01 to 1000 Hz |
| AC current | 5K single-phase 0 to 30 A; 15K three-phase 0 to 30 A/ph; 20K and 22.5K three-phase 0 to 35 A/ph |
| THD | < 0.5% at DC to 400 Hz |
| Output modes | AC / DC / AC+DC |
| DC control modes | CV / CC / CP / CR / bipolar |
View all 18 specifications
| Parameter | Specification |
|---|---|
| Form factor | 4U Compact |
| Input frequency | 47 to 63 Hz |
| Efficiency | ≥ 90% |
| Input power factor | > 0.99Rated power |
| Dimensions | 440 × 670 × 178 mm4U; W × D × H |
| Protection functions | OVP / OCP / OPP / OTP |
| IP rating | IP21 |
| Cooling | Forced air |
| Operating environment | 0 to 40 °C; 20 to 90% RH, non-condensing |
| Storage temperature | -20 to 85 °C |
Performance notes
Reading the output envelope before committing
The GXC804B-5K voltage envelope is frequency-dependent, and that is the figure most often misread: 0 to 450 V L-N is available at 0.01 to 70 Hz, while output from 70 Hz to 1 kHz is bounded at 0 to 300 V L-N. Distortion carries its own condition, since THD is specified as < 0.5% from DC to 400 Hz rather than across the whole 1 kHz range, so a test written at the top of the frequency range should not assume the headline distortion figure. Current per phase moves only from 0 to 30 A to 0 to 35 A across the 5 kW to 22.5 kW rated power models, so moving up the range buys voltage and phases rather than current and a low-voltage high-current DUT is not served by a larger model.
Specifications are subject to change without notice.
Models, Configuration & Compatibility
GXC804B-5K
Model comparison (5)
AC output configurations (5 rows)
| Parameter | GXC804B-5K | GXC804B-15K | GXC804B-20K | GXC804B-22P5K |
|---|---|---|---|---|
| Rated power | 5 kW | 15 kW | 20 kW | 22.5 kW |
| Single-phase AC current | 0 to 30 A | 0 to 90 A | 0 to 105 A | 0 to 105 A |
| Three-phase AC current | - | 0 to 30 A / phase | 0 to 35 A / phase | 0 to 35 A / phase |
| High-voltage AC output | - | 0 to 900 V L-N; 0.01 to 70 Hz | 0 to 900 V L-N; 0.01 to 70 Hz | 0 to 900 V L-N; 0.01 to 70 Hz |
| High-voltage AC current | - | 0 to 30 A | 0 to 35 A | 0 to 35 A |
Regular AC voltage range is 0 to 450 V L-N at 0.01 to 70 Hz, or 0 to 300 V L-N at 70 Hz to 1 kHz. A dash preserves the absence of a specified value for that configuration.
DC output configurations (5 rows)
| Parameter | GXC804B-5K / GXC804B-15K | GXC804B-20K / GXC804B-22P5K |
|---|---|---|
| Regular DC voltage | 0 to 636 V | 0 to 636 V |
| Single-channel DC current | -30 to 30 A | -35 to 35 A |
| Three-channel parallel DC current | -90 to 90 A | -105 to 105 A |
| High-voltage DC output | 5K: -; 15K: 0 to 1272 V | 0 to 1272 V |
| High-voltage bipolar DC current | 5K: -; 15K: -30 to 30 A | -35 to 35 A |
Regular DC current figures are printed in shared cells for each model pair. AC+DC output power, voltage and current use the DC-mode ranges; confirm the required physical configuration.
AC output accuracy and distortion conditions (8 rows)
| Parameter | Value | Condition |
|---|---|---|
| Power accuracy | 0.2% FS | AC mode |
| Voltage accuracy | 0.1% FS | AC mode |
| Frequency accuracy | 0.01% + 0.01 Hz | AC mode |
| Phase accuracy | < 1 deg | 50 Hz |
| Voltage distortion | < 0.5% THD | DC to 400 Hz; 250 V L-N resistive load |
| Voltage distortion | < 1% THD | 400 to 1000 Hz; 250 V L-N resistive load |
| Load regulation | 0.1% FS | Output |
| Line regulation | 0.10% | Output |
DC and load-simulation accuracy (5 rows)
| Parameter | Range / value | Resolution / accuracy |
|---|---|---|
| DC voltage accuracy | 0.1% FS | 0.1 V resolution |
| DC current accuracy | 0.1% FS | 0.01 A resolution |
| Resistance simulation | 0.1 to 1000 Ω | 0.1 Ω; ± 0.1% FS |
| Inductance simulation | 0.01 to 500 mH | 0.01 mH; ± 0.1% FS |
| Capacitance simulation | 0.001 to 50 mF | 1 µF; ± 0.1% FS |
Single-phase input derating for three-phase output (3 rows)
| Model | Three-phase output power with single-phase input |
|---|---|
| GXC804B-15K | 5.0 kW |
| GXC804B-20K | 6.6 kW |
| GXC804B-22P5K | 7.5 kW |
The source explicitly derates three-phase output on single-phase input. Optional 208/230 V line-to-line three-phase input is described only for the 5K and 15K models.
Control interfaces and software
LAN and USB interfaces support Modbus and SCPI. The optional -EXDA analog/digital I/O extension provides the PHIL interface; the small-signal bandwidth and fast external-control response are associated with that option.
LAN · USB · Modbus · SCPI · Optional -EXDA
Order codes and configuration are confirmed in the quotation.
Technical Resources
Selection guidance
Format: Regenerative AC/DC source/load
Coverage: 5 to 22.5 kW rated power; up to 450 V L-N AC at 0.01 to 70 Hz or 636 V DC; DC to 1 kHz
Best for: Grid, RLC/RCD load, bipolar DC, and HIL workflows needing AC/DC source and regenerative load operation.
The GXC804B-5K rated power tops out at 22.5 kW, so facility-scale AC grid simulation belongs on the high-power AC301SHP / AC303SHP series instead.
Send the operating envelope, configuration and acceptance evidence you need; the quotation confirms model, options and delivery documentation.


