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Free Shipping Condition: New Location: United States Output current: 1A/2A/3A/5A (Optional). 1 Converter. Output power: 5W/10W/15W/25W. If you do not receive our reply within 48 hours, pls. If you are satisfied ... morewith our service, pls. Protection level: IP67.
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Free Shipping Condition: New Location: Los Angeles, United States Waterproof DC/DC Converter Regulator 12V Step Up to 48V 3A 144W. Waterproof DC-DC Buck Step Down Volt Converter 20V-72V 24V 36V 48V to 12V. WaterProof ... more36V/48V to 24V 30A 720W Step Down DC/DC Power Converter Regulator.
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Free Shipping Condition: New Location: Chino, United States Technical Specifications: Input voltage: AC 110V-220V Output voltage: 0-110V (adjustable) Adjustable voltage range: 0 -110V Max Power: 4000w Nominal Current: ... more9a Max. Current: 18a Dimension: Approx11.5 * 10 * 6cm/4.53"*3.94" *2.36" Package Contents: 1 * Voltage Regulator Note: the Voltage Regulation Range of This Product Is Adjusted Based on the Original Input Voltage. for Example, If the Input Voltage Is 110v, the Output Can Only Be 0-110v. If the Input Voltage Is 220v, the Output Can Only Be 0-220v.
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Free Shipping Condition: New Location: Chino, United States Max Power: 4000w. the Inductive Load Is 1/3 of the Ohmic Load. the Ohmic Load Relates to the Tungsten Light Bulb, the Heating Wire, Etc. the Inductive ... moreLoad Relates to the Series Exciter Motor. There Are Electronic Products for Printed Circuit Boards That Are Used with Caution.
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Free Shipping Condition: New Location: China Description: This battery box holder fit for 3 x 1.5 V AAA batteries. With spring clip design, you can easily to put the battery in it. Battery is not ... moreincluded here. 1. When the battery case is working, the maximum power should be less than 10W, the working current should be less than 2A. 2.Please pay attention to your battery heat generation while using this product and do not use the poor quality battery.
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Free Shipping Condition: New Location: China
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$3.00 Shipping Condition: New Location: China Resistance:25 ohms min. - Current:continuous 1.8A transient 3A for 10 secs. Usually it cost about 35USD-50USD.
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Free Shipping Condition: New Location: China Maximum Power: 10000W (when inputting 220V). The inductive load is 1/3 of the resistive load. Feature: 1. Plug Specifications: EU Plug.
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Free Shipping Condition: New Location: Jamaica, United States Industry grade DC 24V to 12V 10A/20A/30A/40A step-down converter. Easy DC-DC/AC-DC Changing。. - Our converter has four lines, two black, one yellow and ... moreone red. Input IN+ red line is positive, output IN- black is negative; output OUT+ yellow is positive, output OUT-black is negative.
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Free Shipping Condition: New Location: United States V+ output DC positive, GND output DC negative. Wide range of people: suitable for college students/engineers/technicians/factories/individual DIY/electronics ... moreenthusiasts and other operations. hope you could understand.
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$3.00 Shipping Condition: New Location: China Maximum power: 4000W. The inductive load is 1/3 of the resistive load. Etc., use circuit board electronic products with caution. Input AC, and the output ... moreis also AC, not DC. Suitable for electrical components, such as: electric stove, water heater, heat transfer lamp dimming, small motor, electric welding temperature, etc.
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Free Shipping Condition: New Location: Chino, United States WaterProof 24V to 19V 5A 95W Step Down DC/DC Power Converter Regulator T5. WaterProof 24V to 12V 40A 480W Step Down DC/DC Power Converter Regulator T05. ... moreWaterproof DC/DC Converter Regulator 12V Step Up to 48V 3A 144W T5.
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$3.00 Shipping Condition: New Location: China Suitable for electronic production DIY enthusiasts. Circuit board size:58 42mm. Overheat overcurrent short circuit full protection. Regardless of the ... morepositive and negative input, compatible with 27V AC or 40V DC or less.
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Free Shipping Condition: New Location: Chino, United States 12V/24V~6V 30A 180W Step Down DC/DC Power Converter Regulator. WaterProof 36V/48V to 9V 15A 135W Step Down DC/DC Power Converter Regulator D. WaterProof ... more5V~11V to 12V 10A 120W Step Up DC/DC Power Converter Regulator D.
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$3.75 Shipping Condition: Neu Location: China Maximum power: 2000W. It can be used for large electrical appliances with a power consumption of less than 2000 watts. Due to the already large power, ... moregeneral household appliances or small factories are sufficient, and the power of inductive or capacitive loads should be reduced.
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$3.00 Shipping Condition: New Location: China Note: this is a DIY kit, all the parts need solder by yourself. Output ：DC±1.25-37V adjustable. hope you could understand. For the use of pre-amp,headphone ... moreamp etc.
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Free Shipping Condition: New Location: China Adjustable output current: 5A. Output interface: 5.5 2.5MM compatible with 5.5 2.1MM (with snap ring inside). Compact and lightweight, with a beautiful ... moreappearance. Widely applicable, it can be used for speed regulation and dimming of small DC motors, etc.
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Free Shipping Condition: New Location: China Output waveform: corrected wave. 1x Inverter Board. 12V to 220V Invertor Pure Sine Wave Inverter Circuit Board Power Motherboard. Protection function: ... moreoutput short circuit, overload protection, body overtemperature protection.
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Free Shipping Condition: New Location: Azusa, United States Waterproof DC Power Converter Regulator Reducer 24V Step- Down to 12V 20A 240W Description: 1. Industry grade converter. Operating temperature: 40C ~ ... more+80C. 2. Casting aluminum case. Injected with epoxy resin. So it is waterproof& anti-shock protection. 3. Built-in over/under voltage input. Overload, overhead, and short circuit full protection. 4. Auto-recovery when device is back to normal operating. 5. Power conversion efficiency: 90% 6. Non-isolated 7. Input DC 24V. Output DC 12V 20A 8. Dimensions: 74mm x74mmx31mm(2.9x2.9x1.2 inch) 9. Weight: 300g battery Included in the Package: 1 x Industry Grade DC 24V To DC 12V 20A Step-Down Converter 240w We ONLY accept PayPal. Other payment methods are NOT accepted. Payment MUST BE MADE within 5 business days after the end of the aution. Unpaid dispute will be filed to ebay for the non payable bidders. We ship to PayPal's address ONLY. Please make sure your address in PayPal is matched with your shipping address before you pay. Item will be sent out by Air mail within 24-48 hours after clear payment(excluding weekend& holiday) Arrival time(estimated) United States: 8-15 working days- United Kingdom/ Australia/ Canada: 14-24 working days- Germany/ France/ Spain/ Eastern Europe: 18-25 working days- Other countries: 25-35 working days Shipping time is only estimated and not guaranteed. If not get item after 30 days. Please contact us for solve. We can exchange the item within 14 days after you received it if it is defective. Returned item must have all original packaging and accessories. Buyer are responsible for the returning shipping costs under any circumstances. It may take up to 5 business days to process your return after we receive your product. We don't offer combine shipping. We will send it as a personal gift with a low value. But if there exits any tariff. You will pay for it. If you have any questions please contact us before you leave us neutral or negative feedback. We will try our best to resolve the problem. We will greatly appreciate fo
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$3.75 Shipping Condition: New Location: China LM317 built-in overload protection, safety zone protection and other protection circuits. Normally, the LM317 does not require an external capacitor, ... moreand the output capacitance can change the transient response.
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Free Shipping Condition: New Location: China Output Rated Power: 276W. Output Current: 20A. 1:High quality thermal silica potting, waterproof, dust-proof, shockproof effect. 4: Waterproof, Shockproof ... moreDesign. 1x DC/DC Converter Regulator. Shell Material: Die-cast aluminum alloy.
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Free Shipping Condition: New Location: Los Angeles, United States Model: DC 12V To 13.8V 20A 276W. Output current: 20A (max), 276W. Waterproof DC-DC Buck Step Down Volt Converter 20V-72V 24V 36V 48V to 12V. WaterProof ... more36V/48V to 24V 30A 720W Step Down DC/DC Power Converter Regulator.
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Free Shipping Condition: New Location: China AC-DC 12V 5A 5000MA Power Supply Module Regulator Circuit BoardNote: This product is second -hand , but it's fairly new5000MA AC-DC 12V 5A Switching Power ... moreSupply Module for Replace/Repair LCD Display Power Supply Bare Board Module1. Input: 100-240V 50-60Hz2. Output: 12V3. Output Current: 5000MA4. Size: 10.7*5.0*2.4cm/4.21"*1.97"*0.94"Package includes:1Pc*AC-DC 12V 5A 5000MA Power Supply Module Regulator Circuit Board
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Free Shipping Condition: New Location: Los Angeles, United States WaterProof 12V/24V to 5V 40A 200W Step Down DC/DC Power Converter Regulator. WaterProof 36V/48V to 24V 30A 720W Step Down DC/DC Power Converter Regulator. ... moreWaterProof 48V/60V/72V to 12V 20A Step Down DC/DC Power Converter Regulator.
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Free Shipping Condition: New Location: Chino, United States Max Power: 4000w. the Inductive Load Is 1/3 of the Ohmic Load. the Ohmic Load Relates to the Tungsten Light Bulb, the Heating Wire, Etc. the Inductive ... moreLoad Relates to the Series Exciter Motor. There Are Electronic Products for Printed Circuit Boards That Are Used with Caution.
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Free Shipping Condition: New Location: Chino, United States Max Power: 4000w. the Inductive Load Is 1/3 of the Ohmic Load. the Ohmic Load Relates to the Tungsten Light Bulb, the Heating Wire, Etc. the Inductive ... moreLoad Relates to the Series Exciter Motor. There Are Electronic Products for Printed Circuit Boards That Are Used with Caution.
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Free Shipping Condition: New Location: United States Waterproof DC/DC Converter Regulator 12V Step Up to 13.8V 5A 69W US. Waterproof DC-DC Buck Step Down Volt Converter 20V-72V 24V 36V 48V to 12V 3A UE. ... moreOutput Rated Power: 60W. Waterproof Step Down Volt Converter AC12V To DC12V AC-DC USB Power Module 5A UE.
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Free Shipping Condition: New Location: Monroe Township, United States Max power: 4000W. The inductive load is 1/3 of the ohmic load. The ohmic load relates to the tungsten light bulb, the heating wire, etc. The inductive ... moreload relates to the series exciter motor. There are electronic products for printed circuit boards that are used with caution.
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Free Shipping Condition: New Location: United States [Current Limiting Function] The inductance coil acts on the AC current limiting function. It can form a high pass or low pass filter, a phase shift circuit ... moreand a resonant circuit with a resistor or capacitor to pass DC and block AC.
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$2.99 Shipping Condition: New Location: China Suitable for electronic production DIY enthusiasts. Circuit board size:58 42mm. Overheat overcurrent short circuit full protection. Regardless of the ... morepositive and negative input, compatible with27V AC or 40V DC or less.
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Free Shipping Condition: New Location: Chino, United States Waterproof DC/DC Converter Regulator 12V Step Up to 48V 3A 144W T5. Output Rated Power: 95W. Output Current: 5A. 1x DC/DC Converter Regulator. 1: High ... morequality thermal silica potting, waterproof, dust-proof, shockproof effect.
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Free Shipping Condition: New Location: China Maximum Power: 10000W (resistive load). So as to achieve the effects of dimming, temperature and pressure. Thyristor adds RC absorption protection circuit. ... moreFeature: 1. It can be used for large appliances with an electric power of less than 10,000 watts (pure resistive load).
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Free Shipping Condition: New Location: Hebron, United States The design employs Surface Mount Technology (SMT) for high integration of features in a small footprint AVR. Over excitation conditions are limited to ... morea safe period by a protection circuit within the AVR.
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$2.80 Shipping Condition: Neu Location: China Spot Welder. 45 In 1 Sensor. Battery Protection Board. AC current (Typ.). :
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Free Shipping Condition: New Location: Los Angeles, United States WaterProof 6V to 12V 3A 36W Step Up DC/DC Power Converter Regulator UE. WaterProof 48V to 13.8V 20A 276W Step Down DC/DC Power Converter Regulator UE. ... moreWaterproof DC/DC Converter Regulator 12V Step Up to 13.8V 5A 69W US.
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Free Shipping Condition: New Location: Los Angeles, United States Welcome To Empire RC Welcome to EMPIRE-RC! | |(Step-UP) DC/DC Power Converter Regulator WaterProof(12V to 13.8V) 5A) 69W) 1 PCS) This is SAMPLE PHOTO ... morefor REFERENCE only Please refer the size of bearing in this auction, 1. Input voltage: DC 12V 2. Input voltage Range: 10V- 13V 3. Output voltage: 13.8V 4. Output Current: 5A 5. Output power: 69W 6. Soft start time: ~500mS 7. Conversion efficiency: 85% 8. Load regulation: ± 2% 9. Voltage regulation: ±1% 10. Dynamic response speed: ±5% 200uS 11. Module Properties: Non-isolated 12. Working temperature: industrial grade(20 Deg to 85 Deg) 13. Over-current protection 14. Overheat protectionbr/ 15. Short-circuit protection and automatic recovery 16. Full waterproof potting 17. Weight: 280g 18. Measurement: 74x74x32mm 19. Qty: 1 Pcs 20. Usuable With: Wide range of applications(within voltage range) motors. Stereos, navigation systems, monitoring, displays, air conditions, electric fans, solar energy devices, photovoltaic energy devices, DVD, LED lights, pumps, and industrial equipments etc. Country, First Item, Additional Items, USA Free Shipping, Free Shipping, Canada Free Shipping, Free Shipping, UK Free Shipping, Free Shipping, Europe Free Shipping, Free Shipping, New Zealand Free Shipping, Free Shipping, Australia Free Shipping, Free Shipping, Malaysia Free Shipping, Free Shipping, Japan Free Shipping, Free Shipping, South Korea Free Shipping, Free Shipping, Thailand Free Shipping, Free Shipping, Argentina Free Shipping, Free Shipping, Brazil Free Shipping, Free Shipping, Countries not listed above Free Shipping, Free Shipping, 1. We ship worldwide 2. All items will be checked before packing. All items are new and of high quality 3. We only ship to PayPal confirmed address only 4. Order will be shipped within 24 to 72 hours upon receipt of payment. Excluding weekends and public holidays 5. All items are sent via Hong Kong Post Airmail. For most countries. The shipment takes 7 to 14 business days after we sent out. And for some countries, the shipment take
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$3.75 Shipping Condition: New Location: China DC: 8 ~ 15V, AC: 6 ~ 12V. DC: 18 ~ 36V, AC: 15 ~ 30V. DC: 12 ~ 24V, AC: 12 ~ 24V. DC: 15 ~ 24V, AC: 12 ~ 24V. Output Impedance: 15 mΩ;. AC to DC input ... moremodule can be accessed by non-directional DC output direction.
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Free Shipping Condition: New Location: Los Angeles, United States WaterProof 6V to 12V 3A 36W Step Up DC/DC Power Converter Regulator. Waterproof DC/DC Converter Regulator 12V/24V Step Up to 32V 5A 160W. Step Down DC/DC ... moreBuck Converter 12V/24V to 9V 10A Regulator Power Module.
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Free Shipping Condition: New Location: Los Angeles, United States Waterproof DC/DC Converter Regulator 12V Step Up to 24V 15A 360W. Output Current: 6A. 1x DC/DC Converter Regulator. 3: Easy to install, anti-aging, good ... moreheat dissipation. Shell Material: Die-cast aluminum alloy.
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Free Shipping Condition: New Location: Chino, United States WaterProof 48V to 24V 20A Step Down DC/DC Power Converter Regulator. WaterProof 48V to 24V 10A 240W Step Down DC/DC Power Converter Regulator. Output ... morecurrent: 3A, 144W. Waterproof Step Down Volt Converter AC12V To DC12V AC-DC USB Power Module 3A.
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$3.50 Shipping Condition: New Location: China Maximum power: 2000W. So as to achieve the effect of dimming, temperature regulation and pressure regulation. The available power is less than 2000W for ... morelarge appliances. Because the power is already very large, it is sufficient for general household appliances or small factories.
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Free Shipping Condition: New Location: Chino, United States Description: Powerful 4000w Motor Fan with Variable Thyristor and Electronic Voltage Regulator Adopts Metal Shell Structure, High Temperature Resistance, ... moreFlame Retardant, Not Easy to Rust Core Chip Adopts High Power Thyristor With Adjustable Button for Stepless Voltage Regulation No Delay, Surge Protection, Anti-spike, Rc Absorption Multiple Protection With Universal Socket and Power Supply Light With Heat Dissipation Connector for Quick Heat Dissipation Applicable Electrical Appliances: Electric Stoves, Water Heaters, Tungsten Filament Lamps, Small Motors, Electric Soldering Irons, Fan Speed Control, Etc. Technical Specifications: Input voltage: AC 110V-220V Output voltage: 0-110V (adjustable) Adjustable voltage range: 0 -110V Max Power: 4000w Nominal Current: 9a Max. Current: 18a.
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$2.99 Shipping Condition: New Location: China It can be used for large appliances with a power consumption of less than 2000 watts. Since the power is already very large, ordinary household appliances ... moreor small factories are sufficient. Longer life and more durable.
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$3.20 Shipping Condition: New Location: China Power: 4000w. Maximum Power: 4000W (connected resistive load). It also works with the single phase brushed motor which the max power can NOT be over the ... more1/3 of 40000W. Maximum Power: 4000W. Adopts high quality SCR,Advanced circuit design.
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Free Shipping Condition: New Location: United States Waterproof Step Down Volt Converter AC12V To DC12V AC-DC USB Power Module 5A UE. WaterProof 6V to 12V 3A 36W Step Up DC/DC Power Converter Regulator UE. ... moreWaterProof 48V to 13.8V 20A 276W Step Down DC/DC Power Converter Regulator UE.
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Free Shipping Condition: New Location: Los Angeles, United States Waterproof Power Converter Regulator Dc 24V Step-Down To Dc 12V 60A 720W. WaterProof 24V to 13.8V 20A 276W Step Down DC/DC Power Converter Regulator. ... moreWaterProof 5V~11V to 12V 8A 660W Step Up DC/DC Power Converter Regulator.
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Free Shipping Condition: New Location: Chino, United States Max power: 4000W. The inductive load is 1/3 of the ohmic load. The ohmic load relates to the tungsten light bulb, the heating wire, etc. The inductive ... moreload relates to the series exciter motor. There are electronic products for printed circuit boards that are used with caution.
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Free Shipping Condition: New Location: United States WaterProof 36V/48V to 24V 20A 480W Step Down DC/DC Power Converter Regulator US. Waterproof DC/DC Converter Regulator 12V Step Up to 13.8V 5A 69W US. ... moreWaterProof 6V to 12V 3A 36W Step Up DC/DC Power Converter Regulator UE.
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Free Shipping Condition: New Location: China Features:100% full power and stable current output, non-isolated module.Waterproof level IP68 and anti-shock protection, ultra compact size, light weight.Auto-recovery ... morewhen device is back to normal operating; high transfer efficiency of 97% max.Die-cast aluminum shell, epoxy potting, cooling by free air convection.Protections: Over-current, Over-voltage, Over-temperature, Over-load and Short-circuit, auto-recovery when device is back to normal operating.Package Contain:1 x Waterproof DC Power ConverterNote: The positive and negative pole, input and output connection are marked on the back of the product,be sure not to connect incorrectly.
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$3.23 Shipping Condition: Neu Location: China Power: 36W. Power module 1 (optional). 45 In 1 Sensor. Battery Protection Board. Am 10.04.2024 hat der Verkäufer die folgenden Angaben hinzugefügt Stable ... moreperformance and long service life. hope you could understand.
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Free Shipping Condition: New Location: Brentwood, United States Only support indoor use. Save energy, save energy with enough power. Shell structure: Aluminum, stainless steel. -V: DC output power "+". COM: DC output ... more"-".
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$2.99 Shipping Condition: New Location: China
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Free Shipping Condition: New Location: Chino, United States Voltage Regulator Voltage Stabilizer 18a 10-220v (Adjustable) Description: Powerful 4000w Motor Fan with Variable Thyristor and Electronic Voltage Regulator ... moreAdopts Metal Shell Structure, High Temperature Resistance, Flame Retardant, Not Easy to Rust Core Chip Adopts High Power Thyristor With Adjustable Button for Stepless Voltage Regulation No Delay, Surge Protection, Anti-spike, Rc Absorption Multiple Protection With Universal Socket and Power Supply Light With Heat Dissipation Connector for Quick Heat Dissipation Applicable Electrical Appliances: Electric Stoves, Water Heaters, Tungsten Filament Lamps, Small Motors, Electric Soldering Irons, Fan Speed Control, Etc. Technical Specifications: Input Voltage: Ac 110v Output Voltage: 10-220v (Adjustable) Adjustable Voltage Range: 0 -220.
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Free Shipping Condition: New Location: Chino, United States Description: Powerful 4000w Motor Fan with Variable Thyristor and Electronic Voltage Regulator Adopts Metal Shell Structure, High Temperature Resistance, ... moreFlame Retardant, Not Easy to Rust Core Chip Adopts High Power Thyristor With Adjustable Button for Stepless Voltage Regulation No Delay, Surge Protection, Anti-spike, Rc Absorption Multiple Protection With Universal Socket and Power Supply Light With Heat Dissipation Connector for Quick Heat Dissipation Applicable Electrical Appliances: Electric Stoves, Water Heaters, Tungsten Filament Lamps, Small Motors, Electric Soldering Irons, Fan Speed Control, Etc. Technical Specifications: Input voltage: AC 110V-220V Output voltage: 0-110V (adjustable) Adjustable voltage range: 0 -110V Max Power: 4000w Nominal Current: 9a Max. Current: 18a.
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Free Shipping Condition: New Location: Chino, United States Max Power: 4000w. the Inductive Load Is 1/3 of the Ohmic Load. the Ohmic Load Relates to the Tungsten Light Bulb, the Heating Wire, Etc. the Inductive ... moreLoad Relates to the Series Exciter Motor. There Are Electronic Products for Printed Circuit Boards That Are Used with Caution.
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Free Shipping Condition: New Location: Chino, United States Voltage Regulator Voltage Stabilizer 18a 10-220v (Adjustable) Description: Powerful 4000w Motor Fan with Variable Thyristor and Electronic Voltage Regulator ... moreAdopts Metal Shell Structure, High Temperature Resistance, Flame Retardant, Not Easy to Rust Core Chip Adopts High Power Thyristor With Adjustable Button for Stepless Voltage Regulation No Delay, Surge Protection, Anti-spike, Rc Absorption Multiple Protection With Universal Socket and Power Supply Light With Heat Dissipation Connector for Quick Heat Dissipation Applicable Electrical Appliances: Electric Stoves, Water Heaters, Tungsten Filament Lamps, Small Motors, Electric Soldering Irons, Fan Speed Control, Etc. Technical Specifications: Input Voltage: Ac 110v Output Voltage: 10-220v (Adjustable) Adjustable Voltage Range: 0 -220.
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Free Shipping Condition: New Location: Chino, United States AC SCR Electric Voltage Regulator Motor Fan Dimmer Motor Speed Controller Power Description: Powerful 4000w Motor Fan with Variable Thyristor and Electronic ... moreVoltage Regulator Adopts Metal Shell Structure, High Temperature Resistance, Flame Retardant, Not Easy to Rust Core Chip Adopts High Power Thyristor With Adjustable Button for Stepless Voltage Regulation No Delay, Surge Protection, Anti-spike, Rc Absorption Multiple Protection With Universal Socket and Power Supply Light With Heat Dissipation Connector for Quick Heat Dissipation Applicable Electrical Appliances: Electric Stoves, Water Heaters, Tungsten Filament Lamps, Small Motors, Electric Soldering Irons, Fan Speed Control, Etc. Technical Specifications: Input voltage: AC 110V-220V Output voltage: 0-110V (adjustable) Adjustable vo.
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Free Shipping Condition: New Location: Chino, United States Description: Powerful 4000W motor fan with variable thyristor and electronic voltage regulator Adopts metal shell structure, high temperature resistance, ... moreflame retardant, not easy to rust Core chip adopts high power thyristor With adjustable button for stepless voltage regulation No delay, surge protection, anti-spike, rc absorption multiple protection With universal socket and power supply light With heat dissipation connector for quick heat dissipation Applicable electrical appliances: electric stoves, water heaters, tungsten filament lamps, small motors, electric soldering irons, fan speed control, etc. Technical specifications: Input voltage: AC 110V Output voltage: 10-220V (adjustable) Adjustable voltage range: 0 -220V Max power: 4000W Nominal current: 9A Max. Current: 18A Dimension:.
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Free Shipping Condition: New Location: 金东区, China Suitable for electrical components, such as: electric stove, water heater, heat transfer lamp dimming, small motor electric soldering iron and etc. Using ... morethe new two-way high-power thyristor, current up to 25A, a good solution to the problem of over-current electric wire in the case of cooling the resistance is too small to cause.
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Free Shipping Condition: New Location: China R438 Automatic Voltage Regulator Introduction: For both AREP&PMG excitation systems.The alternator voltage regulator is the R438.With AREP excitation, ... morethe R438 electronic AVR is powered by two auxiliary winding which are independent of the voltage match circuit. The first winding has a voltage in proportion to that of the alternator.The second have a voltage in proportion to the stator current. The power supply voltage is rectified and filtered before being used by the AVR monitoring transistor. This consists of a"PMG"permanent generator)This is fitted at the rear of the machinge and connected to the R438 AVR.The PMG supplies the AVR with constant voltage which is independent of the main alternator winding. As a result the machine has a short-circuit current capacity and good immunity to distrotions generated by the load.The AVR monitors and corrects the alternator output voltage by adjusting the exitation current.50/60Hz selection via the ST3 jumper. The LAM system is integrated in the R438 AVR as standard.Role of the"LAM(load adjustment module)On application of a load.The rotation speed of the generator set decreases.When it passes below the preset frequenecy threshold.The LAM causes the voltage to drop by approximately 13% or 25% and consequently the amount of active load applied is reduced by approximately 25% to 50%until the speed reaches its rated value again. Hence the LAM can be used either to reduce the speed variation(frequency) and its duration for a given applied load, or the increase the applied load possible for one speed variation(turbo-charged engine)To lowest requency in steady state.During load impacts.The function help the genset to return to its rated speed faster thanks to a gradual increase in voltage according to the principle: If the speed drops between 46 and 50Hz.The rated voltage follows a fast gradient as it is restored. If the speed drops below 46Hz.Since the engine need more help,the voltage follows a slow gradient as it returns to the reference value. Main charact
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