WORLD'S SMALLEST PROGRAMMABLE DC POWER SUPPLY
- Max Voltage: 8V to 36V
- Max Current: 1A to 3A
- Max Power: 24W to 36W
- Ultra Slim
Compact and lightweight design by our original low noise switching technology
R3K-36 series is an ultra-compact, high-performance DC power supply that achieves a sufficient output of 36 W in the "palmtop size." The 35 mm wide ultra slim DC power supply employs both an output voltmeter and current meter as the standard equipment enabling simple operation and easy to use.
This DC power supply featuring multi-set and anti-sink functions is suitable for quality inspection and the best lab power supply.
Features and Benefits
- Saving space by compact and lightweight design
- Suitable for research application by its ultra-low noise feature
- Outstandingly quiet operation with Fan-less Power Supply Unit (PSU)
- Standard visual meters are excellent in quickly checking both output voltage and output current
- Speedy settings of output voltage and output current
Ultra compact!
Models
- Ripple values range from 10% to 100% of the rated output.
- You can change the input voltage, refer to options.
| Model | Output | Ripple *1 (rms) | Minimum setting unit | AC input | |||||
|---|---|---|---|---|---|---|---|---|---|
| Voltage [V] |
Current [A] |
Power [W] |
Voltage | Current | Voltage | Current | Voltage *2 | Current [typ.] |
|
| R3K36-1 | 0 to 36 V | 0 to 1 A | 36 W | 5 mV | 5 mA | 100 mV | 10 mA | 115 V ± 10% 50/60 Hz single phase |
1 A |
| R3K18-2 | 0 to 18 V | 0 to 2 A | |||||||
| R3K8-3 | 0 to 8 V | 0 to 3 A | 24 W | 4 mV | 4 mA | 10 mV | |||
Functions
Multi Setting Function
Memorize three voltage and current settings in addition to the standard preset values.
There is no need to adjust the output when different settings are, and convenient function for the production inspection process or testing which requires frequent data taking.
Sink Current Suppression
When supplying power to loads with capacities like batteries and capacitors, the sink current suppression is used to reduce the reverse current flowing from the load to the unit in order to prevent a voltage drop on the load as the output is OFF or the set voltage is lowered.
Reverse current cannot be controlled and stabilized. Connect a dummy resistor or reverse current prevention diode when a load of the reverse voltage is equal to or higher than the rated voltage (inductive loads, regenerative motors, etc.)
Two Mode Lock Function
Two modes can be selected; "Full Lock" which locks all front panel operations, and "Standard Lock" which locks all operations except for OUTPUT ON/OFF.
"Full Lock" mode shall be good in case misoperation has to be completely avoided, and "Normal Lock" mode shall be good in case to avoid misoperation but secure the way for emergency stop of the power supply. You can select the best mode according to your level of "Security".
(In both modes, an emergency stop is possible with Power Switch.)
Full Lock
Lock all the functions other than reset lock mode, and effective for the purpose to avoid mis-operation when controlled.
Standard Lock
Lock voltage and current setting dial, and effective for the purpose to avoid changing output setting by mistake or when easy emergency stop is required.
Remote Control Functions
External output ON/OFF
* +S is common. The external control voltage shall be input with +S as a reference. Otherwise, it can cause failure.
Remote sensing
Compensate the voltage drop (V0-VL) due to resistance of output lead or drop of stability by contact resistance. (maximum 0.5 V)
Specifications
Options
- -LH
-
Higher isolation voltage
With an isolation voltage by ±1kV, more R3K-36 series power supplies are available in series connection.
- Input voltage change Option
-
- -L(120V): 120 Vac ±10% input
- -L(200V): 200 Vac ±10% input
- -L(220V): 220 Vac ±10% input
- -L(230V): 230 Vac ±10% input
These options cannot be equipped together.
How to Order
When ordering, add Option No. in the following order by alphabet, and input voltage to Model No.
Example: R3K18-2-LH(200V)
Accessories
- AC input cable
-
Standard CABLE TYPE1 
125 V / 10 A 2.5 meters
Fixed length
Standard
[for -L(230V)]CABLE TYPE3 
250 V / 10 A 2.5 meters
Fixed length
Sold separately CABLE TYPE4 
250 V / 10 A 2.5 meters
Fixed length
Dimensions
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-
R3K-36 series Datasheet
Date: 2024-06-10 rev.08
PDF (1,797 KB)
-
How to Use DC Power Supplies
Date: 2024-03-05 rev. 08
PDF (1,467 KB)
-
R3K-36 series Basic Instruction Manual
Date: 2024-10-10 rev 00
PDF (534 KB)
Login Required
-
R3K-36 series Datasheet
Date: 2024-06-10 rev.08
PDF (1,797 KB)
-
How to Use DC Power Supplies
Date: 2024-03-05 rev. 08
PDF (1,467 KB)
-
R3K-36 series Basic Instruction Manual
Date: 2024-10-10 rev 00
PDF (534 KB)
In this website, we provide only the latest version of information including instruction manuals as of our products. Therefore, the newest versions of manuals on the website might be not same as the ones of products you purchased in the past.
