# NANKADF 30V 10A Black DC Power Supply | Precise Encoder Knob & USB Quick-Charge **Brand:** NANKADF **SKU:** kaq7864 **ASIN:** B09BFCF13Y **Canonical URL:** https://crowcrowcrow.com/p/power-supply-variable-bench-encoder-adjustment-knob-output-enable-disable-button/kaq7864 **Subcategory:** Categories **Availability:** in_stock **Price (INR, all-inclusive):** ₹9,100 **Discount:** 5% **Customer rating:** 4.88/5 from 8 ratings ## Description NANKADF 30V 10A Black DC Power Supply offers precise control with an encoder knob and 18W USB quick-charge. Features overcurrent protection and a 4-digit LED display. Ideal for labs and repairs, imported from USA, duties included, ships via ExpressBox with {{ccc_delivery_eta}}. ## Highlights - Precise Encoder Knob Control — Customize voltage/current digit-by-digit for exact settings, far more accurate than standard knobs. Ideal for sensitive electronics calibration and testing. - 18W USB Quick-Charge Port — Charge mobile phones or other devices directly from the power supply, eliminating the need for separate chargers. Convenient for simultaneous testing and charging. - Overcurrent Protection with Buzzer — Automatically stops output and alerts with a buzzer during short circuits, protecting both the power supply and your connected load from damage. - 4-Digit LED Display Accuracy — View voltage to 0.01V and current to 0.001A with clear C.V./C.C. mode indicators. Screen brightness is adjustable for optimal visibility. ## Key features - High-precision Encoder Knob: Different from general knobs, this DC power supply has a precise encoder knob. You can press the knob to switch each digit, and then turn the knob to customize each digit in the range of 0-9. Set the voltage or current you want more accurately. - Output Enable/Disable Button: In the process of using the bench power supply, Output button can prevent us from forgetting to turn off the output and causing damage to the load. Just press this button to turn on or turn off the output of the power supply. This makes it more convenient for you to use the variable power supply. - Overcurrent Protection: When the OCP function is turned on, if the load equipment is short-circuited during operation, the adjustable power supply will automatically stop output and send a buzzer to alert the user. Protect the adjustable power supply and load from damage. - Precise 4-digit LED Display: The dc power supply is equipped with a high-definition 4-digit display with data accurate to 0.01 V and 0.001 A. It has constant voltage (C.V.) and constant current (C.C.) modes, which can be switched automatically. You can see the working status indicator on the display. Additionally, you can adjust the brightness of the screen according to your needs. - USB Fast Charging Port: The variable power supply is configured with an 18W fast charging port. No more mplaining about mobile phones or repaired devices not being charged in time. The NANKADF dc power supply allows you to avoid this dilemma. It charges your devices quickly anytime, anywhere. ## Why choose this product - Precision Lab Performance - Who It's For vs. Who Should Skip ## How to use 1. Ensure the power supply is connected to a suitable 115V AC source via a step-down transformer for India. Connect your load device to the output terminals, observing correct polarity. Do NOT turn on the output yet. — Connect Power and Load 2. Press the encoder knob to select the digit to adjust. Turn the knob to set the desired voltage, then press again to switch to current adjustment and set the desired current limit. Monitor the 4-digit LED display for accuracy. — Set Voltage and Current 3. Press the Output Enable button to activate power to the load. Observe the LED display for voltage and current readings. If overcurrent protection is needed, ensure it is enabled. Use the USB port for charging compatible devices. — Enable Output and Monitor ## Product details | Field | Value | |---|---| | Input Voltage | 115V AC (Requires step-down transformer for India's 220-240V mains) | | Output Voltage | 0-30V DC (Adjustable) | | Output Current | 0-10A DC (Adjustable) | | Output Wattage | 300W | | USB Output | 18W Quick-Charge Port | | Cooling Method | Air Cooling (Fanless) | | Display | 4-Digit LED (0.01V / 0.001A accuracy) | | Protection Features | Overcurrent Protection (OCP) with Buzzer, Output Enable/Disable Button | | Primary Use | Electronics Testing, Repair, Lab Work, Prototyping | | Serving Size | N/A (Continuous use as needed) | | Cost per use | N/A (Durable electronic device) | | Shelf life after opening | N/A (Durable electronic device) | | Reapplication math | N/A (Durable electronic device) | | Contraindications | Requires 115V input (step-down transformer needed for India); not suitable for applications exceeding 300W output. | | Allergens / common irritants | N/A | | Brand | NANKADF | | Model Number | 30V 10A BLACK | | Color | Black | | Form Factor | Benchtop | | Material | Plastic, Metal | | Dimensions (L x H x W) | 200 mm x 145 mm x 90 mm (7.87 in x 5.71 in x 3.54 in) | | Weight | 1.48 kg (3.26 lb) | | Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers | ## Frequently asked questions ### Will this DC power supply work on Indian mains power? This NANKADF DC Power Supply is rated for 115V AC input. For use in India with the standard 220-240V/50Hz mains supply, you will need a compatible step-down voltage transformer. These transformers are widely available in India and should be rated to handle the power requirements of the supply (at least 300W). ### How do I set the voltage and current precisely? The NANKADF power supply features a high-precision encoder knob. Press the knob to select the digit you wish to adjust, then turn the knob to set that digit from 0-9. This allows for highly accurate customization of both voltage and current outputs, ensuring precise power delivery for your specific needs. ### What is the benefit of the Output Enable/Disable button? The Output Enable/Disable button provides a convenient safety feature. It allows you to turn the power output on or off without disconnecting the load or the power cord. This prevents accidental damage to your connected equipment if you forget to turn off the output before making adjustments or connections. ### How does the overcurrent protection work? When the Overcurrent Protection (OCP) function is activated, the power supply monitors the output current. If the load causes a short circuit or draws excessive current, the unit will automatically stop output and emit a buzzer sound. This protects both the power supply and the connected load from potential damage. ### Can I use this power supply for tattoo machines or LED lighting? While this is a versatile bench power supply, it is primarily designed for general electronics testing and repair. For specific applications like tattoo machines or high-power LED lighting, ensure the voltage and current requirements match the specifications of your device and that the output is suitable for the intended load type. ### What is the best way to use this adjustable power supply? Connect your load, then use the encoder knob to precisely set the desired voltage and current. Activate the output using the enable button. Monitor the 4-digit LED display for real-time readings. Utilize the USB quick-charge port for compatible devices. Always ensure your load's requirements are within the 30V/10A/300W limits. ## Compliance No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging. ## Images 1. https://images.crowcrowcrow.com/B09BFCF13Y-0.webp 2. https://images.crowcrowcrow.com/B09BFCF13Y-3.webp 3. https://images.crowcrowcrow.com/B09BFCF13Y-6.webp 4. https://images.crowcrowcrow.com/B09BFCF13Y-9.webp 5. https://images.crowcrowcrow.com/B09BFCF13Y-12.webp 6. https://images.crowcrowcrow.com/B09BFCF13Y-15.webp --- Source: https://crowcrowcrow.com/p/power-supply-variable-bench-encoder-adjustment-knob-output-enable-disable-button/kaq7864 Returns: 30 days, free, by mail. Shipping: Free across India, 7–13 business days. Prices are all-inclusive (duties + GST).