KIKUSUI Slim Wide Range Variable Switching Power Supply PWX Series

Ideal for N-to-M network-based remote control and monitoring. A Next-Generation Rack-Mounted Power Supply

The PWX Series is a next-gen, rack-mounted DC power supply, designed for optimal remote control and monitoring via networked systems. It features USB, RS232C, and LXI-compliant LAN interfaces for seamless browser-based access on multiple devices. With power outputs of 750 W and 1500 W, and a universal voltage range, it includes PFC circuits, multi-channel support, and safety functions, ensuring versatile, efficient network integration.

Slim Wide Range Variable Switching Power Supply

Model:

PWX Series

Maker:

KIKUSUI ELECTRONICS CORPORATION

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Features

The PWX series is a CV/CC programmable regulated DC power supply optimally designed for rack-mounted operation. To increase its mounting efficiency, it has a 19-inch rack width with a thin shape and intakes and outtakes for cooling on only the front and back surfaces so that it can be mounted flush top and bottom.

Furthermore, this series is equipped with essential communication interfaces for system upgrades, including LAN, USB, and RS232C as standard. By utilizing the VMCB (Virtual Multichannel Bus) function*, efficient remote control and monitoring of 1-to-N, N-to-M, and large-scale network types can be achieved. LAN communication allows control and monitoring from web browsers on PCs, smartphones, and tablets. Additionally, it is certified for LXI (LAN eXtensions for Instrumentation), making it easy to configure when connecting to measurement systems via LAN. Remote management of power supplies located in separate buildings can also be easily realized.

The output specifications include two types of output power: 750W and 1500W, with a wide range of voltage and current settings possible in a “3:1” power type. For example, the PWX1500ML with a rated output power of 1500W allows seamless operation from 80V-18.75A to 26.8V-56A. The input power voltage is also a universal specification of 85V to 265V, with a built-in PFC (Power Factor Correction) circuit to suppress harmonic current. Other features include analog external control and monitor output, master-slave parallel operation function, various protection functions, memory functions, etc.

*Supported from Half-Rack Model Ver2.0

Equipment

Equipped with standard LAN interface and VMCB (Virtual Multi-Channel Bus) function
to support network-based remote control and monitoring

The PWX series is equipped with LAN, USB, and RS232C interfacesas standard features. By using the feature of virtual multi-channelbus (VMCB)*1, it allows you to control remotely and monitoringfor 1-to-N as well as N-to-M for large-scale networks.

In particular,the LAN interface is LXI compliant, enabling you to easily controland monitor the power supply through a browser on a PC, smartphone,or tablet by accessing the web server built into the PWXseries.

Additionally, the optional application software, Wavy forPWX (SD013-PWX), sequence creation and control software,allows you to change settings for specific channels (in individual)on VMCB-connected PWX series power supplies, and lets youperform batch control using global commands*2. You can alsoturn the output ON and OFF on multiple units and adjust theoutput voltage and current.

*1: This function for the PWX750ML applies to the firmware version 2.0 and later.
*2: This is only enabled for “Direct control” on Wavy for PWX. Global commands that can be also used under control with VXI-11, HiSLIP, and SCPI-RAW.

Specifications

Model Type	Rated voltage range	Example of Output rating voltage	750W		1500W
L (LF)	10V to 30V	10V	75A to 25A	75A	150A to 50A	150A
		12.5V		60A		120A
		15V		50A		100A
		20V		37.5A		75A
		30V		25A		50A
ML (MLF)	26.8V to 80V	26.8V	28A to 9.37A	28A	56A to 18.75A	56A
		30V		25A		50A
		35V		21.4A		42.8A
		40V		18.75A		37.5A
		45V		16.66A		33.33A
		60V		12.5A		25A
		80V		9.375A		18.75A
MH (MHF)	75V to 230V	75V	10A to 3.26A	10A	20A to 6.52A	20A
		80V		9.375A		18.75A
		100V		7.5A		15A
		150V		5A		10A
		200V		3.75A		7.5A
		230V		3.26A		6.52A
H (HF)	214.2V to 650V	214.2V	3.5A to 1.153A	3.5A	7A to 2.307A	7A
		300V		2.5A		5A
		400V		1.875A		3.75A
		500V		1.5A		three a (baseball)
		600V		1.25A		2.5A
		650V		1.153A		2.307A

PWX Series 750W model

AC input

Item/Model		PWX750LF	PWX750MLF	PWX750HF
Half rack size			PWX750ML
Nominal input rating		100 Vac to 240 Vac, 50 Hz to 60 Hz, single phase
Input voltage range		85 Vac to 265 Vac
Input frequency range		47 Hz to 63 Hz
Current (MAX) *1	100 Vac	10.5A
Current (MAX) *1	200 Vac	5.25A
Inrush current *2		70 A or less
Power (MAX) *3		1100VA
Power factor (TYP) *1		0.99 (input voltage 100 V), 0.97 (input voltage 200 V)		0.98 (input voltage 100 V), 0.96 (input voltage 200 V)
Efficiency *1		74 % or greater
Hold-up time for power interruption *3		20 ms or greater

*1. With rated load.
*2. Excludes the charge current component that flows through the capacitor of the internal EMC filter circuit immediately after the POWER switch is turned on (for approximately 1 ms).
*3. 100 Vac with rated load.

Output

Item/Model			PWX750LF	PWX750MLF	PWX750MHF	PWX750HF
Half rack size				PWX750ML
Rating	Output voltage *1		30V	80V	230V	650V
	Output current *1		75A	28A	10A	3.5A
	Output power		750W
Voltage	Setting range		0V to 31.5V	0V to 84V	0V to 241.5V	0V to 682.5V
	Setting accuracy		±（0.05％of set+0.05% of rtg）
	Line regulation *2		±5mV	±10mV	±25mV	±67mV
	Load regulation *3		±5mV	±10mV	±25mV	±67mV
	Transient response *4		1 ms or less		7 ms or less
	Ripple noise *5	(p-p)*6	60mV	80mV	120mV	330mV
	Ripple noise *5	(rms) *7	8mV	8mV	25mV	60mV
	Rise time	Rated load	100ms
	Rise time	No load	100ms
	Fall time *8	Rated load	100ms		150ms	250ms
	Fall time *8	No load	450ms	550ms	1500ms	3000ms
	Maximum remote sensing compensation voltage (single line)		1.5V	4V	5V	5V
	Temperature coefficient (MAX) *9		100 ppm/°C (during external control)
Current	Setting range		0A to 78.75A	0A to 29.4A	0A to 10.5A	0A to 3.675A
	Setting accuracy *10		±（0.5％of set+0.1% of rtg）
	Line regulation		±9.5mA	±4.8mA	±3mA	±2.35mA
	Load regulation		±20mA	±10.6mA	±7mA	±5.7mA
	Ripple noise *11	(rms) *7	150mA	65mA	30mA	15mA
	Temperature coefficient (TYP) *9		100 ppm/°C

*1. The maximum output voltage and current are limited by the maximum output power.
*2. 85 Vac to 135 Vac or 170 Vac to 265 Vac, fixed load.
*3. The amount of change that occurs when the load is changed from no load to rated load (rated output power/rated output voltage) with rated output voltage. The value is measured at the sensing point.
*4. The amount of time required for the output voltage to return to a value within “rated output voltage ± (0.1 % + 10 mV).” The load current fluctuation is 50 % to 100 % of the maximum current with the set output voltage.
*5. Measured using an RC-9131 1:1 probe that conforms to the JEITA specifications. At the rated output current.
*6. When the measurement frequency bandwidth is 10 Hz to 20 MHz.
*7. When the measurement frequency bandwidth is 5 Hz to 1 MHz.
*8.When the breeder circuit on/off setting is on.
*9. When the ambient temperature is within 0 °C and 50 °C.
*10. When the output voltage (Rated Power ÷ Rated Current) is 10 % to 100 % of the rating. At the rated output current.

Display function

Item/Model		PWX750LF	PWX750MLF	PWX750MHF	PWX750HF
Half rack size			PWX750ML
Voltage display	Maximum display	99.99 (fixed decimal point)		999.9 (fixed decimal point)
Voltage display	Display accuracy	±(0.2 % of rdng +5 digits)
Current display	Maximum display	99.99 (fixed decimal point)			9.999 (fixed decimal point)
Current display	Display accuracy	±(0.5 % of rdng +5 digits)
Power display *1		The PWR DSPL LED lights in red.
	Maximum display	9999
	Display accuracy	Displays the result of multiplying the current and voltage
Operation display		OUTPUT ON/OFF, CV operation, CC operation,Alarm operation, Remote operation (LAN operation),Key lock operation, Preset memory

*1. Press PWR DSPL to display the power on the ammeter. Each time you press this key, the display switches between power and current.

General

Item/Model		PWX750LF	PWX750MLF	PWX750MHF	PWX750HF
Half rack size			PWX750ML
Environmental conditions	Operating environment	Indoor use, overvoltage category II
	Operating temperature/ humidity	0 °C to +50 °C (32 °F to +122 °F)/ 20 %rh to 85 %rh (no condensation)
	Storage temperature/ humidity	-10 °C to +60 °C (14 °F to +140 °F)/ 90 %rh or less (no condensation)
	Altitude	Up to 2000 m
Cooling method		Forced air cooling using fan
Grounding polarity		Negative grounding or positive grounding possible
Isolation voltage		± 250 Vmax		± 500 Vmax	± 800 Vmax
Isolation voltage	Isolated analog interface *1	± 60 Vmax
Withstanding voltage	Between input and FG	No abnormalities when 1500 Vac is applied for 1 minute
	Between input and output	No abnormalities at 2000 Vac for 1 minute			No abnormalities at 2250 Vac for 1 minute
	Between output and FG	No abnormalities at 1500 Vdc for 1 minute		No abnormalities at 1600 Vac for 1 minute	No abnormalities at 2000 Vdc for 1 minute
	Between input and Isolated Analog Interface *1	No abnormalities at 2650 Vac for 1 minute
	Between output and Isolated Analog Interface *1	No abnormalities at 2300 Vdc for 1 minute		No abnormalities at 2650 Vac for 1 minute	No abnormalities at 3300 Vac for 1 minute
Insulation resistance		500 Vdc, 100 MΩ or more (70 % or less)			1000 Vdc, 100 MΩ or more (70 % or less)
Insulation resistance	Between output and FG	500 Vdc, 40 MΩ or more(70 % or less)			1000 Vdc, 40 MΩ or more (70 % or less)
Safety		Conforms to the requirements of the directive and standard below. Low Voltage Directive 2014/35/EU 3 EN 61010-1 (Class I 4、Pollution degree 2 *7)
Electromagnetic compatibility (EMC) 23		Conforms to the requirements of the directive and standard below. EMC Directive 2014/30/EU EN 61326-1 (Class A 5) EN 55011 (Class A 5、Group 1 *6) EN 61000-3-2、EN 61000-3-3 Applicable under the following conditions The maximum length of all cabling and wiring connected to the PWX series must be less than 3 m.
Dimensions (maximum)/Weight		422.8(485) W×43(44) H×500(580) Dmm/Approx. 8 kg		422.8(485) W×43(44) H×500(580) Dmm/Approx. 7.5 kg
Half rack size		214 W×43(55) H×437(490) Dmm/Approx. 5 kg
Accessories		AC cable : 1 wire, Output terminal cover: 1 pc., Output terminal M8 bolt set: M8 bolts ×2 sets(Bolt, nut, spring washer, and washer for each bolt) *PWX750ML includes M6 bolt set, Chassis connection wire: 1 wire, J1 connector plug kit: 1 set (Housing: 1 pc., Connector: 1 pc., Plug: 1 pc., Strain relief: 1 pc., Clips: 2 pcs., and two types of Screws: 2 pcs.,), Packing list: 1 copy, Quick reference (1 each for English and Japanese), Safety precautions: 1 copy, China RoHS sheet: 1 copy, CD-ROM: 1 disc

*1 Factory option.
*2 Does not apply to specially ordered or modified PWXs.
*3 Limited to products that have the CE/UKCA marking on their panels. Not be in compliance with EMC limits unless the ferrite core is attached on the cable for connection of J1 connector.
*4 This is a Class A equipment. The PWX is intended for use in an industrial environment. This product may cause interference if used in residential areas. Such use must be avoided unless the user takes special measures to reduce electromagnetic emissions to prevent interference to the reception of radio and television broadcasts.
*5 This is a Group 1 equipment. The PWX does not generate and/or use intentionally radio-frequency energy, in the from of electromagnetic radiation, inductive and/or capacitive coupling, for the treatment of material or inspection/analysis purpose.
*6 This is a Class I equipment. Be sure to ground the PWX’s protective conductor terminal. The safety of this product is only guaranteed when the product is properly grounded.
*7 Pollution is addition of foreign matter (solid, liquid or gaseous) that may produce a reduction of dielectric strength or surface resistivity. Pollution Degree 2 assumes that only non-conductive pollution will occur except for an occasional temporary conductivity caused by condensation.

PWX Series 150W model

AC input

Item/Model		PWX1500L	PWX1500H
Nominal input rating		100 Vac to 240 Vac, 50 Hz to 60 Hz, single phase
Input voltage range		85 Vac to 265 Vac
Allowable frequency range		47 Hz to 63 Hz
Current (MAX) *1	100 Vac	21 A
Current (MAX) *1	200 Vac	10.5 A
Inrush current *2		70 A or less
Power (MAX) *3		2200 VA
Power factor (TYP) *1		0.99 (input voltage 100 V), 0.97 (input voltage 200 V)	0.98 (input voltage 100 V), 0.96 (input voltage 200 V)
Efficiency *1		74 % or greater
Hold-up time for power interruption *3		20 ms or greater

Output

Item/Model			PWX1500L	PWX1500ML	PWX1500MH	PWX1500H
Rating	Output voltage *1		30 V	80 V	230 V	650 V
	Output current *1		150 A	56 A	20 A	7 A
	Output power		1500 W
Voltage	Setting range		0 V to 31.5 V	0 V to 84 V	0 V to 241.5 V	0 V to 682.5 V
	Setting accuracy		± (0.05 % of set +0.05 % of rating)
	Line regulation *2		±5 mV	±10 mV	±25 mV	±67 mV
	Load regulation *3		±5 mV	±10 mV	±25 mV	±67 mV
	Transient response *4		1 ms or less		7 ms or less
	Ripple noise *5	(p-p)*6	60mV	80mV	120mV	330mV
	Ripple noise *5	(rms) *7	8 mV	8 mV	25 mV	60 mV
	Rise time	Rated load	100ms
	Rise time	No load	100ms
	Fall time *8	Rated load	100ms		150ms	250ms
	Fall time *8	No load	800 ms	1000 ms	1500 ms	3000 ms
	Maximum remote sensing compensation voltage (single line)		1.5V	4V	5V	5V
	Temperature coefficient (MAX) *9		100 ppm/°C (during external control)
Current	Setting range		0 A to 157.5 A	0 A to 58.8 A	0 A to 21 A	0 A to 7.35 A
	Setting accuracy *10		±(0.5 % of set +0.1 % of rtg)
	Line regulation		±17 mA	±7.6 mA	±4 mA	±2.7 mA
	Load regulation		±35 mA	±16.2 mA	±9 mA	±6.4 mA
	Ripple noise *11	(rms) *7	300mA	130mA	60mA	30mA
	Temperature coefficient (TYP) *9		100 ppm/°C

*1 The maximum output voltage and current are limited by the maximum output power.
*2 85 Vac to 135 Vac or 170 Vac to 265 Vac, fixed load.
*3 The amount of change that occurs when the load is changed from no load to rated load (rated output power/rated output voltage) with rated output voltage. The value is measured at the sensing point.
*4 The amount of time required for the output voltage to return to a value within “rated output voltage ± (0.1 % + 10 mV).” The load current fluctuation is 50 % to 100 % of the maximum current with the set output voltage.
*5 Measured using an RC-9131C probe that conforms to the JEITA specifications. At the rated output current. When the measurement frequency bandwidth is 10 Hz to 20 MHz.
*6 When the measurement frequency bandwidth is 5 Hz to 1 MHz.
*7 When the breeder circuit on/off setting is on.
*8 When the ambient temperature is within 0 °C and 50 °C
*9 For the PWX1500L and PWX1500ML, in the range of 1 % to 100 % of the rated current.
*10 For the PWX1500H, in the range of 0.2 % to 100 % of the rated current.
*11 When the output voltage is 10 % to 100 % of the rating. At the rated output current.

Display function

Item/Model		PWX1500L	PWX1500ML	PWX1500MH	PWX1500H
Voltage display	Maximum display	99.99 (fixed decimal point)		999.9 (fixed decimal point)
Voltage display	Display accuracy	±(0.2 % of rdng +5 digits)
Current display	Maximum display	999.9 (fixed decimal point)	99.99 (fixed decimal point)		9.999 (fixed decimal point)
Current display	Display accuracy	±(0.5 % of rdng +5 digits)
Power display *1		The PWR DSPL LED lights in red.
	Maximum display	9999
	Display accuracy	Displays the result of multiplying the current and voltage
Operation display		OUTPUT ON/OFF, CV operation, CC operation,Alarm operation, Remote operation (LAN operation),Key lock operation, Preset memory

*1. Press PWR DSPL to display the power on the ammeter. Each time you press this key, the display switches between power and current.

General

Item/Model		PWX1500L	PWX1500MH	PWX1500H
Environmental conditions	Operating environment	Indoor use, overvoltage category II
	Operating temperature/ humidity	0 °C to +50 °C (32 °F to +122 °F)/ 20 %rh to 85 %rh (no condensation)
	Storage temperature/ humidity	-10 °C to +60 °C (14 °F to +140 °F)/ 90 %rh or less (no condensation)
	Altitude	Up to 2000 m
Cooling method		Forced air cooling using fan
Grounding polarity		Negative grounding or positive grounding possible
Isolation voltage		± 250 Vmax	± 500 Vmax	± 800 Vmax
Isolation voltage	Isolated analog interface *1	± 60 Vmax
Withstanding voltage	Between input and FG	No abnormalities when 1500 Vac is applied for 1 minute
	Between input and output	No abnormalities at 2000 Vac for 1 minute		No abnormalities at 2250 Vac for 1 minute
	Between output and FG	No abnormalities at 1500 Vdc for 1 minute	No abnormalities at 1600 Vac for 1 minute	No abnormalities at 2000 Vdc for 1 minute
	Between input and Isolated Analog Interface *1	No abnormalities at 2650 Vac for 1 minute
	Between output and Isolated Analog Interface *1	No abnormalities at 2300 Vdc for 1 minute	No abnormalities at 2650 Vac for 1 minute	No abnormalities at 3300 Vac for 1 minute
Insulation resistance	Between input and FG	500 Vdc, 100 MΩ or more (70 % or less)
	Between input and output	500 Vdc, 100 MΩ or more (70 % or less)		1000 Vdc, 100 MΩ or more (70 % or less)
	Between output and FG	500 Vdc, 40 MΩ or more(70 % or less)		1000 Vdc, 40 MΩ or more (70 % or less)
Safety		Conforms to the requirements of the directive and standard below. Low Voltage Directive 2014/35/EU 3 EN 61010-1 (Class I 6, Pollution degree 2 *7)
Electromagnetic compatibility (EMC)		Conforms to the requirements of the directive and standard below. EMC Directive 2014/30/EU EN 61326-1 (Class A4) EN 55011 (Class A 4, Group 1 5) EN 61000-3-2、EN 61000-3-3 Applicable under the following conditions The maximum length of all cabling and wiring connected to the PWX must be less than 3 m.
Dimensions (maximum)/Weight		422.8(485) W×43(44) H×500(580) Dmm/Approx. 9.5 kg (20.94 lb)	422.8(485) W×43(44) H×500(580) Dmm/Approx. 9 kg (19.84 lb)
Accessories		Output terminal cover: 1 pc., Input terminal cover set, Output terminal M8 bolt set: M8 bolts ×2 sets(Bolt, nut, spring washer, and washer for each bolt), Chassis connection wire: 1 wire, J1 connector plug kit: 1 set(Housing: 1 pc., Connector: 1 pc., Plug: 1 pc., Strain relief: 1 pc., Clips: 2 pcs., and two types of Screws: 2 pcs.,), Packing list: 1 copy, Quick reference (1 each for English and Japanese), Safety precautions: 1 copy, China RoHS sheet: 1 copy, CD-ROM: 1 disc

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