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B08JD68VG1 Price: $56.61 Score: 1000.000 Category: Electronics Rating: 4.6 Votes: 17 Find similar products MEAN WELL DR-UPS40 40 Amp DC Uninterruptable Power Supply. 40 amp DC uninterruptable power supply battery controller for DIN rail UPS system specifications size (L x W x H) (inches): 4.9 x 2.2 x 4.9 DC input: 24-29v 40a battery input: 21-29v 0-40a, charge current: 2a suitable for 24V system up to 40a parallel connection to DC bus built-in battery Test function battery polarity protection 2-year warranty certifications: CE.	B07L4XCC8W Price: $179.99 Score: 7.634 Category: Electronics Rating: 4.5 Votes: 685 Find similar products Cllena DC/DC 12V to 24V Boost Converter 50A 1200W Step Up Voltage Regulator Module Car Power Supply Voltage Transformer (Input 10V-16V). Wiring: INPUT+ to BAT+, GND to BAT-; OUTPUT+ to LOAD+, GND to LOAD- Note: * Never connect to solar panel, PWM/MPPT charge controller, inverter or wind turbine. * Never charge the battery. Keep good air convection. * Never reverse the polarity. * Use the enough big cable to avoid the voltage drop. Application: 12V DC battery as input power to 24V DC appliances as output load. Specifications: Input Rated Voltage: 12V DC Input Voltage Range: 10V-16 DC Output voltage: 24V DC Output Current: 50 Amp Output Rated Power: 1200W Efficiency: 97% (half load); 95% (full load) Ripple: 200mVp Line Regulation: ±0.2% Load Regulation: ±0.2% Voltage Accuracy: ±1.5% Enclosures: IP68 Case Operating Temperature: -40~85°C Total Size: 22012763mm(LWH) Weight: 2200g Features: 1. 100% full power and stable current output, non-isolated module. 2. Industry grade DC 12V to DC 24V step up converter, efficiency up to 95%. 3. Die-cast aluminum shell, epoxy potting, cooling by free air convection; Waterproof level IP68 and anti-shock protection. 4. Protections: Over-current, Over-voltage, Over-temperature, Over-load and Short-circuit, auto-recovery when device is back to normal operating. 5. Certificates: CE/RoHS, 1 year warranty, lifetime up to 100,000 hours. Package included: 1 x DC 12V-24V 50A Step up Converter Questions: How to choose the correct current for loads? For example, if the max current of your load device is 10A, then choose 10A/0.8=12.5A at least for resistive loads according to international standard. If the load device is motor or compressor, then you may choose 10A/0.5=20A according to real testing result since the motor and compressor starting current may be 2-3 times than nominal current.
B07G456MS8 Price: $6.99 Score: 7.407 Category: Electronics Rating: 4.7 Votes: 8 Find similar products NOYITO DC to DC 5A 75W Buck Power Supply Module CC CV DC 5V - 36V Buck to 1.2V - 32V Output ADJ 75W Max Constant Voltage Constant Current Step-Down Power Supply Module LED Driver Board. Module features: 1. High power, high efficiency, 5A, low ripple; 2. Three-in-one: used as a common step-down module with overcurrent protection; used as a charger for various voltage lithium batteries, batteries, nickel-cadmium nickel-hydrogen batteries (batteries), for solar panels, wind power generation Machine and other occasions; used as a high-power LED constant current drive module; 3. There are two modes of constant voltage and constant current, and there are indicators to indicate which mode the module is currently in; 4. When used as a lithium battery charger, you can set the float voltage and charge current, and the indicator light indicates whether it is charging or is full; 5. With current limiting protection, the module will not burn out even if the output is short circuited. Module parameter Input voltage: DC 5V - 36V. Output voltage: DC 1.25V - 32V continuously adjustable. Output current: adjustable, 5A (recommended for use within 4.5A). Output power: 75W (recommended to use within 50W, please reduce power when using large differential pressure). Working temperature: -40~+85 °C. Working frequency: 180KHz. Conversion efficiency: 96%. Short circuit protection: Yes (limit current 8A). Over temperature protection: Yes (automatically turn off the output after over temperature). Input reverse connection protection: None, (If necessary, please input a large current diode in the input string). Installation method: 4 pieces of 3mm twisted wire. Wiring method: terminal block or soldering terminal, V-IN is input, V-OUT is output. Module size: length 68.2mm width 38.8mm height 15mm. Weight: 35g. Note: When using this module for more than 3A, 35W, please strengthen the heat! ! ! Package Included 1Pcs NOYITO DC-DC 5A 75W Buck Power Supply Module.	B0B7MBNP4G Price: $14.59 Score: 7.246 Category: Electronics Rating: 4.7 Votes: 4 Find similar products JESSINIE ZK-4KX DC-DC Buck Boost Converter Regulator CNC Adjustable CC CV 0.5-30V Voltage Converter DIY Solar Battery Charging Power Supply Module LCD Display with Shell. Anti-reverse connection protection at the input end, reverse connection will not burn; The output terminal prevents backflow, and there is no need to add a backflow prevention diode when charging the battery; The module can be set to turn on/off by default; Has a variety of software protection mechanisms, and the protection threshold is adjustable. After the module operating parameters exceed the protection threshold, the output is automatically turned off. The output ripple is small, with π-type filtering; Thickened heat sink Product parameters Input voltage: 5.0-30V Output voltage: 0.5-30V Output current: It can work stably at 3A for a long time and reach 4A under enhanced heat dissipation. Output power: 35W for natural heat dissipation and 50W for enhanced heat dissipation Voltage display resolution: 0.01V Current display resolution: 0.001A Operating frequency: 180KHZ Conversion efficiency: about 88% Soft start: Yes (very high power with load module may fail when starting) Protection mechanisms: Input anti-reverse connection; Output backflow prevention; Input undervoltage protection (4.8-30V adjustable, default 4.8V) Output overvoltage protection (0.5-31V adjustable, default 31V) Output overcurrent protection (0 -4.1A adjustable, default 4.1A) Output over-power protection (0-50W adjustable, default 50W) Over-temperature protection (80-110 ℃ adjustable, default 110 ℃) Timeout protection (0-100h adjustable, closed by default) Super capacity protection (0-60Ah adjustable, closed by default) Note: After the product triggers the protection mechanism, the output will automatically turn off, the LCD screen will display the protection code, press any key to exit the protection interface.
B01ASVFTEC Availability: Currently unavailable Score: 6.897 Category: Electronics Rating: 5 Votes: 2 Find similar products Nissei NS-1230M 30 AMP Switching Power Supply with Meter, 4-16 Volts Adjustable. Nissei NS-1230M Switching Power Supply is designed to supply up to 30A maximum current or 25A continuous current at 13.8VDC to radio, marine and technology area. Compact size Short circuit and over voltage protection Output power rated at continuous service Binding post output terminals Precision regulation of output voltage Lowe peak-peak ripple of less than 0.3% External fuse access High surge capacity Heavy duty metal cabinet with power coating LED Backlight Nissei NS-1230M is a Switching Power Supply you can use for: Amateur (Ham) Radio Equipment Amateur (Ham) Radio Equipment Communication Equipment Communication Equipment Automobile Sound System Automobile Sound System Test Equipment and Appliances Test Equipment and Appliances Portable Entertaintment Equipment and Appliances Vehicle Accessories & DC Lighting System Portable Entertaintment Equipment and Appliances Vehicle Accessories & DC Lighting System Security System and CCTV Security System and CCTV Cooler Boxes Cooler Boxes Marine Equipments Marine Equipments.	B097DM5733 Price: $23.99 Score: 6.757 Category: Electronics Rating: 4.4 Votes: 8 Find similar products XWST DC DC Stabilizer 9V-36V to 13.8V Boost Buck Converter 5A 69W Waterproof Automatic Voltage Regulator Auto Step Up Down 13.8V Volt Transformer Module. XWST DCDC Power Supply Stabilizer Module Technical Specification: Input Voltage: DC 9V~36V (12V 24V) Output Voltage: DC 13.8V Output Current: 5A Output Power: 69W Conversion Efficiency: >93% No Load Voltage Range: Set voltage ±3% Load Regulation: ±3% Quiescent Power Dissipation: <10mA Operating Temperature: -25~65℃ Storage Temprature: -40~80℃ Operating Humidity: 10%~90% Waterproofing Grade: IP67 Over-current Protection: Yes Over-temperature Protection: Yes Short-circuit Protection: No Size: 74mm x74mm x 32mm Net Weight: 260g Material:aluminium shell Note: 1. Connect the wiring in strict according with the wiring instruction. 2. Use short and thick input & output wire to ensure output enough voltage and power. 3. If there are multiple output wire, do not combine the load. 4. Leave a margin for the power supply to ensure it can long-term stably working. Package Included: 1x DC-DC Stabilizer.
B083DZ7VB7 Price: $11.61 Score: 6.757 Category: Electronics Rating: 2.9 Votes: 12 Find similar products 6-48V Battery Charging Controller Module, Battery Low Voltage Cut Off Automatic Switch On Protection Undervoltage Controller, for Under Voltage Control Over-discharge Protection. Specifications: Model: YX815 Control voltage: 5V-60V Control current: 20A Control accuracy: 0.1V Voltage error: ±0.1V Scope: storage battery, lithium battery, etc Packing: antistatic bag Size: 7.9 x 4.3 x 2.8cm/3.11 x 1.69 x 1.10inch Installation dimensions: 76 x 39.5mm/2.99 x 1.56inch Weight: 44g Voltage setting method: In setting state(digital tube flashes) S1: up-regulated voltage S2: down-regulated voltage S1 undervoltage setting button (charging startup, load stop): 1.Under normal display voltage, press the S1 button to display the charging start(load stop )voltage value. 2.Long press the s1 button digital lamp tube flashing, and set charging startup voltage（load stop） value through s1 and s2 buttons. S2overvoltage setting button (charging stop, load start): 1.Under normal display voltage, press the S2 button to display the charging stop （load start up）voltage value. 2.Long press s2 button digital lamp tube flashing, through s1 and s2 buttons to set charging stop （load start up）voltage value. Restore factory Settings: Under the state of electricity, press the buttons of s1 and s2 at the same time, and the digital tube displays 888, that is to restore the original factory setting success. (Note: when s1 cannot up regulate the voltage, set s2 first, and s2 cannot down regulate the voltage, set s1 first) Package Included: 1 x Battery Charging Controller.	B0048LYF8U Availability: Currently unavailable Score: 6.711 Category: Electronics Rating: 3 Votes: 1 Find similar products US- Rack-mountable - Online - Ac 200/208/220/230/240 V - 2.4 Kw - 1 X Manageme. 3000va / 3kva / 2500 Watt On-line, Double-conversion Ups System For Critical Server, Network And Telecommunications Equipment. 2u Rackmount Form Factor With An Installed Depth Of Only 66cm (26 Inches). Full Time Sine Wave 200/208/220/230/240v Output With +/-2% Voltage Regulation. Ups Actively Converts Raw Incoming Ac Power To Dc, Then Re-converts Output Back To Completely Regulated, Filtered Ac Output. Operates Continuously Without Using Battery Power During Brownouts To 120v And Overvoltages To 288v. C20 Inlet Accepts A Wide Variety Of Optional Cordsets. C19 And C13 Output Receptacles. Network Management Interfaces Include Usb Port, Db9 Serial Port And Snmpwebcard Slot. Built-in Db9 Port Offers Both Enhanced Rs-232 Enabled Monitoring Data, Plus Contact Closure Monitoring Ability. Hid-compliant Usb Interface Enables Integration With Built-in Power Management And Auto Shutdown Features Of Windows And Mac Os X. Multi-stage Metered Current Monitoring And Battery Charge Status Leds.
B07NZNLRLT Availability: Currently unavailable Score: 6.579 Category: Electronics Rating: 4.9 Votes: 13 Find similar products KNACRO 24V to 13.8V 30A 414W Power Buck Module Car Step Down DC DC Converter Voltage Regulator Reducer. Wiring: INPUT+ to BAT+, INPUT- to BAT-, OUTPUT+ to LOAD+, OUTPUT- to LOAD- Reminder: Never reverse the polarity. Use the enough big cable to avoid the voltage drop. Never connect to solar panel or wind turbine. Never charge the battery. Efficiency: 95% Input Voltage:DC 24V (18-36V) Output Voltage: DC 13.8V Output Current: 30A Ripple: 130mVp Line Regulation: ±0.2% Load Regulation: ±0.2% Voltage Accuracy: ±1.5% Enclosures: IP67 Dimension: 747432mm Net Weight: 0.32kg Case Operating Temperature: -40~85°C Warranty: 1 year MTBF: 100,000 hours Application: 24V DC battery of vehicles as input power to 13.8V DC appliances as output load. Questions How to choose the correct current for loads? For example, if the max current of your load device is 10A, then choose 10A/0.8=12.5A at least for resistive loads according to international standard. If the load device is motor or compressor, then you may choose 10A/0.5=20A according to real testing result since the motor and compressor starting current may be 2-3 times than nominal current.	B00MEKL56M Price: $34.92 Score: 6.536 Category: Electronics Rating: 4 Votes: 7 Find similar products Switching Power Supplies 156W 24V 6.5A. Enclosed Switching AC-to-DC Power Supply 24V @ 6.50A Features: Protections: Short circuit / Over load / Over voltage Protections: Short circuit / Over load / Over voltage Cooling by free air convection Cooling by free air convection LED indicator for power on LED indicator for power on 100% full load burn-in test 100% full load burn-in test All using 105°C long life electrolytic capacitors All using 105°C long life electrolytic capacitors Withstands 300 VAC surge input for 5 seconds Withstands 300 VAC surge input for 5 seconds High operating temperature up to 70°C High operating temperature up to 70°C Withstands 5G vibration tests Withstands 5G vibration tests High efficiency, long life, and high reliability High efficiency, long life, and high reliability 3 year warranty 3 year warranty.