0-24V 20A 480W Switching Power Supply Adjustable Regulated Power Supply with Digital Display

0-24V 20A 480W Switching Power Supply Adjustable Regulated Power Supply with Digital Display

Description:
This adjustable regulated power supply has stable and reliable performance. DC output voltage is continuously adjustable from 0 to 24V, and the adjustment accuracy is high. Using high-precision multi-turn potentiometer, it has overload current limiting function. Current limiting output 0-20A continuously adjustable, 0-5V signal control voltage and current, and power 0-480W.

Features:
- 0.56" digital DC voltammeter with good stability and high measurement accuracy
- Ultra-quiet cooling fan: When the temperature reaches a certain level, the fan runs automatically. When no cooling is required, the fan automatically stops
- High-end high-precision multi-turn potentiometer
- Premium components: Double imported power tubes, imported 494 chip, imported fast rectifier tubes, double imported electrolytic capacitors, FR-4 sheet double-sided double-layer PCB, and high-frequency low-resistance filter capacitors
- Pure Copper: Transformer, inductor, common mode, and drive

Technical Parameters:
- DC output: 0-24V and 0-20A (adjustable to 27V); Digital display digits: 3 digits
- Current limiting output current range: 0-20A continuously adjustable
- Ripple voltage: not more than 100mV
- Equivalent internal resistance of voltage regulator: not more than 0.O5Ω
- Voltage regulation
- With short-circuit current limiting protection and automatic recovery functions
- AC input: 110V/220V
- Power: 0-480W
- Size: 215 x 115 x 50mm/8.5 x 4.5 x 2"

Package Included:
- 1 x Power Supply
- 1 x Male Tab

Note:
- Battery is not included.

Current Limiting (Current Regulation):
1. In the case of power failure, pull the small toggle switch in the lower left corner to the current adjustment gear.
2. Pull out the male tab and connect it to the 2nd and 3rd ports of the wiring port. Use a screwdriver to loosen the port screws, install the male tab and then tighten it with a screwdriver. Connect to the power supply, at this time the voltage of the digital display meter shows 0.00V, and the current shows the current current parameter. At this time, the power supply will make a small sound of squeaking current.
3. On the right (current knob), you can adjust the current limiting parameter. The digital display will simultaneously display the current parameters. 0-21A full adjustable.
4. Remove the male tab and insert it back into the original socket. At this time, the digital display shows that the voltage is about 0.90V and the current is 0.00A.
5. Pull the toggle switch in the lower left corner to the right to the "ON (Use)" position.
6. The current power supply is at the parameter value of the current limit just now. No matter how you adjust the voltage of the power supply (the digital display meter displays the output voltage in real time), the current remains unchanged. When the current in use reaches 95% of the current limiting parameter, it will start to reduce the voltage and start the overload protection.
7. The current parameter displayed by the digital display at this time is the current value of the equipment load, and the load current is monitored in real time.

When a load device is connected, users can adjust the current in real time. At this time, the current value of the digital display is the current value of the load device. If the current adjustment knob exceeds the current value of the device in a clockwise direction, the current value of the digital display will not be displayed continuously in real time, and only the current value of the device will be displayed at this time.

If there is no need for current limiting, use general equipment without the above operations, pull the pull switch in the lower left corner to the "ON (Use)" gear, and turn the current knob clockwise to the top, the current limit at this time is 21A, then the power supply parameters are output 0-24V 21A, which is equivalent to a 0-24V 20A switching power supply.

Applications:
Mainly used for various battery charging (including all kinds of lithium batteries), DC equipment, DC motor stepless speed regulation, LED stepless dimming, chemical electrolytic plating speed regulation, scientific research and testing, student experiments, etc.

Special Attention:
When using inductive loads such as motors and fans, please pay attention to the motor starting current parameters. This parameter should not be higher than the current used by the power supply, otherwise it may cause damage to the power supply. You should choose a power supply with a larger current, or equip the motor with soft start protection. The circuit absorbs the inrush current.

Power formula: Voltage x Current = Power. For example, if you connect a 12V 10A device, the power is 120W, and if you connect a 36V 10A device, the power is 360W.

Terminal Description and Wiring Method:
L, N: AC input terminal
FG: Ground
V+: DC output positive terminal
V-: DC output negative terminal
ADJ: Adjustable potentiometer (fine adjustment of output DC voltage)

- Full voltage input
- Miniaturization
- Protection function: short-circuit/overload/over-voltage
- Full load aging test
- Input voltage & frequency range: 110V/220VAC/47～63Hz
- Start Inrush Current: 20A at 120VAC (cold start)
- Output adjustment range: ±(rated output voltage)
- Overload protection: 105%～200% (rated load), self-recovery
- Over-voltage protection: 115%～135% (rated output voltage)
- Short circuit protection: self-recovery
- Output startup time: ≤2S at 120VAC; ≤1.0S at 230VAC
- Output hold time: ≥10mS at 120VAC, ≥20mS at 230VAC
- Dielectric Strength: Input--Output: AC1500V, 1min; Input--chassis: AC1500V, 1min; Output--chassis: DC500V, 1min
- Working environment: -10℃ to 50℃; 20%～90%RH (non-condensing)
- Safety Standard: Designed with reference to EN/UL60950
- Electromagnetic Compatibility Standard: Design Reference EN55022 Class B