High-Power, Wide-Range Programmable DC Output
The KIKUSUI PXT Series combines 20 kW of DC output power, wide-range voltage/current operation, programmable control, and system-level scalability in a compact 3U platform.
The series includes 500 V, 1000 V, and 1500 V models, allowing the output configuration to be selected according to the voltage and current requirements of the test system. Its wide-range architecture provides a broader combination of voltage and current operating points than a conventional single-range power supply.
20 kW
Rated output power per unit
Up to 1500 V
Maximum rated output voltage
3U
Compact high-power chassis
Up to 500 kW
25-unit parallel expansion
The PXT Series supports CV, CC, and CP operating modes, sequence programming, variable internal resistance, programmable I-V characteristics, remote control, and master-slave parallel operation. It can be used as a stand-alone high-power DC source or integrated into automated test equipment and larger DC power systems.
20 kW Output in a 3U Chassis
Each PXT model delivers 20 kW of rated DC output from a compact 3U enclosure, supporting high-power test systems where rack space is limited.
Wide-Range Output Architecture
The wide-range design supports a broad combination of voltage and current operating points within the 20 kW power envelope, reducing the need for multiple fixed-range DC supplies.
CV, CC and CP Operating Modes
Constant-voltage, constant-current, and constant-power priority modes are available, allowing operation to be matched to different load and test requirements.
Programmable Sequence Operation
Up to 30 programs can be created with a combined maximum of 10,000 sequence steps, enabling repeatable programmable DC output profiles without continuous external control.
Variable Internal Resistance
The internal resistance function varies output voltage according to output current during CV operation, supporting simplified simulation of characteristics such as battery or wiring resistance.
Programmable I-V Characteristics
Register between 3 and 100 arbitrary I-V points to define custom characteristics for CC or CV operation, including simplified simulation of rechargeable-battery I-V behavior.
Integrated Digital and Analog Control
LAN, USB and RS232C are standard, together with isolated external analog control and configurable digital I/O for integration with PLCs and automated test equipment.
Scalable to 500 kW
Master-slave parallel operation supports up to 25 units of the same model for a maximum system capacity of 500 kW, with control and monitoring from the master unit.
Selectable Output Response
FAST and SLOW response settings and selectable voltage and current slew rates allow the output behavior to be adapted to the connected load and test conditions.
Bleeder ON/OFF Control
The bleeder function can accelerate output-voltage decay after output is turned off, or be disabled when unnecessary discharge from a connected battery should be minimized.
Protection and Communication Monitoring
Protection functions include OVP, UVP, OCP, OPP, watchdog communication protection, and external alarm detection for system-level operation.
Continuous Operation up to 50°C
The thermal design supports full-load continuous operation at ambient temperatures up to 50°C for demanding equipment-integration environments.
High-capacity DC power source for automated test equipment
High-voltage DC source testing up to 1500 V
Programmable DC voltage, current, and power profiles
Rechargeable-battery I-V characteristic simulation
Simplified battery internal-resistance simulation
Wire-harness resistance simulation
PLC-controlled production and validation systems
Rack-integrated high-power DC source systems
Multi-unit DC power systems requiring up to 500 kW
PXT Series Model Comparison
| Specification | PXT20K-500 | PXT20K-1000 | PXT20K-1500 |
|---|---|---|---|
| Rated Output Power | 20 kW | 20 kW | 20 kW |
| Rated Output Voltage | 0 to 500 V | 0 to 1000 V | 0 to 1500 V |
| Rated Output Current | 120 A | 60 A | 30 A |
| Maximum Settable Voltage | 525 V | 1050 V | 1575 V |
| Voltage Setting Resolution | 0.05 V | 0.1 V | 0.1 V |
| Maximum Settable Current | 126 A | 63 A | 31.5 A |
| Current Setting Resolution | 0.01 A | 0.005 A | 0.002 A |
| Maximum Settable Power | 21 kW | 21 kW | 21 kW |
| Power Setting Resolution | 2 W | 2 W | 2 W |
| CV Ripple Noise | 100 mVrms | 250 mVrms | 300 mVrms |
| CV Line Regulation | ±100 mV | ±200 mV | ±300 mV |
| CV Load Regulation | ±250 mV | ±750 mV | ±750 mV |
| CC Line Regulation | ±240 mA | ±120 mA | ±60 mA |
| CC Load Regulation | ±240 mA | ±120 mA | ±60 mA |
| CV Transient Response | 6 ms or less | 6 ms or less | 6 ms or less |
| Operating Modes | CV / CC / CP | CV / CC / CP | CV / CC / CP |
| Communication Interfaces | LAN / USB / RS232C | LAN / USB / RS232C | LAN / USB / RS232C |
| External Control | Isolated analog / digital I/O | Isolated analog / digital I/O | Isolated analog / digital I/O |
| AC Input | 3-phase 200 V or 400 V class | 3-phase 200 V or 400 V class | 3-phase 200 V or 400 V class |
| Maximum Input Current | 80 A / 40 A | 80 A / 40 A | 80 A / 40 A |
| Operating Temperature | 0°C to 50°C | 0°C to 50°C | 0°C to 50°C |
| Approx. Weight | 38 kg (83.78 lb) | 38 kg (83.78 lb) | 37 kg (81.57 lb) |
| Dimensions | 430 W × 128 H × 720 D mm nominal chassis dimensions | ||
Rated voltage and rated current cannot necessarily be used simultaneously at their maximum values; output combinations are limited by the 20 kW rated output power.
Programmable Control and System Integration
PXT Series power supplies support local, remote, and multi-unit control for automated high-power DC test systems.
Sequence operation enables predefined output actions to run directly from the power supply. Up to 30 programs can be stored with a combined maximum of 10,000 steps, and stored programs can be exported to USB memory.
30 Programs
Programmable sequence storage
10,000 Steps
Maximum combined sequence steps
LAN / USB / RS232C
Standard communication interfaces
25 Units
Master-slave power expansion
Virtual Multichannel Bus (VMCB) can also group and coordinate multiple PXT units for networked remote control and monitoring. VMCB grouping is a control architecture and should not be confused with electrical parallel operation. Electrical parallel operation uses same-model PXT units and supports up to 25 units for a maximum system capacity of 500 kW.
