Factory Price 1.2KW 28V Switching Power Supply
Feature:
85-265Vac AC input or 220-380Vdc DC input, with +27V single output. It has input over-voltage protection, under-voltage protection, output over-current protection, short-circuit protection, over-temperature protection,power failure and fault alarm circuits.
Specification:
| 1. Input | |||||
| No. | Item | Specification | Unit | Remark | |
| 1.1 | Input working voltage range | 85-265(Typical value: 110/220) | Vac Vdc | The power supply can work normally at -40 to +75°C ambient temperature. | |
| 1.2 | Input working voltage range | 100-240(typical value: 110/220) | |||
| 1.3 | Input start-up voltage range | 90-265(Typical value: 110/220) | Vac | It can start normally at -40- +75°C, and is better to us shorter and thicker input wire. It is recommended to use 1 10AWG wire or 2 14AWG wires in parallel. After starting, ensure that the voltage of the input socket terminal is ≥90Vac. | |
| 1.4 | DC input start-up voltage range | 220-380 | Vac | No certification is required. Only test whether it can start up and work normally. | |
| 1.5 | Input impulse current | ≤30 | A | 265Vac input. It is recommended to use ≥32A for the circuit breaker at the front input end of the power supply. | |
| 1.6 | Maximum input current | ≤20 | A | 85Vac input, rated load output | |
| 1.7 | AC input frequency | 45-65(Typical value: 50/60) | Hz | Normally working during this full range | |
| 1.8 | Input power factor | ≥0.95 | Rated input/output | ||
| 2,Output | |||||
| 2.1 | Output voltage range | 26.5-27.5(rated voltage: 27V) | Vdc | ||
| 2.2 | Output current range | 1-45 | A | Full load or rated load: 45A | |
| 2.3 | Rated output power | 1237.5 | W | ||
| 2.4 | Stabilization accuracy | ≤±2 | % | For reference only. The result is subject to the output voltage range. The output voltage range is 27.0±0.5V. | |
| 2.5 | Source effect | ≤±1 | |||
| 2.6 | Load effect | ≥91 | % | ||
| 2.7 | Noise + ripple | ≤50 ≤100(low temperature -40ºC ) | mVp-p | Test after working 5 minutes in full load 45A, output terminal connected with 104+10uF capacitor and 20MHz bandwidth in temperature of -40ºC. | |
| 2.8 | Efficiency | ≥90 | % | 110Vac/full load/normal temperature | |
| ≥92 | % | 220Vac/full load/normal temperature | |||
| Tipical value 88 | % | Full temperature range/90-265V full load, and efficiency at high temperature is for reference only | |||
| 2.9 | Power-on output delay | ≤5 | S | 110V/220V AC input, 27V rated load output | |
| 2.10 | Temperature Coefficient | ≤±0.02 | %/°C | ||
| 2.11 | Output rise time | ≤200 | ms | The output voltage rises from 10% to 90% in rated load | |
| 2.12 | Output dynamic response | Overshoot amplitude≤±5%*Vo Custom: Recovery time≤500us | 25%-50%-25% and 50%-75%-50% (change rate: 0.25A/us; one cycle: 4ms) | ||
| 3. Protection | |||||
| 3.1 | Input overvoltage protection | 300-315 | Vac | Test in AC SOURCE and output with 50% load | |
| 3.2 | Input overvoltage recovery point | 285-300 | Vac | ||
| 3.3 | Input undervoltage protection | 65-80 | Vac | Test in AC SOURCE and output with 50% load | |
| 3.4 | Input undervoltage recovery point | 70-85 | Vac | ||
| 3.5 | Output overvoltage protection (for 27V ) | 105%-140%, that is 29-38.5V | Vdc | ||
| 3.6 | Current limit protection (for 27V voltage circuit) | 10%-140%*Io, that is 49.5-63A | A | Self-recoverable. Input voltage above 110Vac refers to the average current. | |
| 3.7 | Short circuit protection (for 27V voltage) | ≤170%*Io, that is ≤76.5A | A | Self-recoverable | |
| 3.8 | Over temperature protection | 85-105(typical value: 100). Recoverable when temperature lower than 95°C | °C | Ventilation system is placed in the cooling bottom plate of the power supply | |
Packaging, Transportation, and Storage
1. Packaging
The packaging box is labeled with information about product name, model, manufacturer's logo, quality certificattion, manufacturing date, etc.. A list of accessories is attached in the packaging box.
2. Transportation
It is suitable for transportation by car, ship, and airplane. During transportation, it should be covered, sun proof, and carefully moved.
3. Storage
When the product is not in use, it should be stored in the packaging box. The warehouse environment temperature is -10 to 40°C and the relative humidity is not more than 80%. Harmful gases, flammable, explosive products and corrosive chemicals are not allowed in the warehouse. And there should not be strong mechanical vibration, impact and strong magnetic field. The packing box should be at least 20cm away from the ground and at least 50cm away from the wall, heat source, window or air inlet. The storage period under the specified conditions is generally 2 years. After 2 years, the inspection should be re-inspected.
Product Details
Factory profile
HENGKAITUO have been providing module power supply services since 2013. It has always adhered to the business philosophy of "abiding by credibility and people-oriented" and the management concept of "technological innovation and reliable quality", laying a solid foundation at home and abroad. The company aims to provide customers with high-quality services, reliable product quality, and cost-effective products. It provides industry-leading on-board mobile backup power systems, communication power systems, charging piles, chargers, module power supplies, wind-solar-diesel hybrid power systems, photovoltaic inverters, on-board power supplies, UPS, inverters, remote power supply systems and Various power distribution solutions and products. With high-quality service, reliable quality and high cost performance, the company has won the trust and cooperation of leading companies in various industries.
FAQ
Q 1. What's the payment term?
A. We accept TT, Western Union, Paypal, MoneyGram.
Q 2. How's the delivery time?
A. Is due to order quantity, usually it will take about 3-7days for sample production,
Q 3. Tell me the standard of package?
A. For the small capacity, it use carton, but for big capacity, we should use honeycomb carton and pallet or wooden case for protection.
Q 4. Would you accept to use our logo?
A. It's no problem to do OEM.
Q 5. We want to know month capacity.
A. It depends on which model. For example for relay type small capacity, month capacity can reach near 2000pcs and big capacity near 500pcs.
Q 6.Where is your market?
A. Our products are popular in Australia,South America,Philippines,Italy, America, Pakistan and so on.Some of them are our regular customers and some of them are developing. We hope you can join us and make mutural benifit from our cooperation.
Q 7. What kind of certificate you have ?
A. Our company already achieve ISO9001, and for products, we have CE, UL, GB/T, Cei IEC, Yd/T etc .
Q 8. What is the warranty period ?
A. Normally 1 year ,if order quantity enough can be extended to 3 years.
Q 8.How about the lifetime?
A:The life time is 15-20years.
OEM Services
1.Logo
Please offer us your own high resolution logo in JPG format,there should be two colors at most in the logo and there should be no gradient effect in the logo.
2.Label
Please offer us your own model numbers.
3. Manual
Please offer us the finished manual file that can be printed directly.
Lead Time
1.Sample orders will be delivered from our factory within 3-7 working days.
2.General orders will be delivered from our factory within 15-30working days.
3.Big orders will be delivered from our factory within 45 working days at most
Shipment
1.By EMS,DHL,FedEx,TNT,UPS or other express.
2.By our forwarding agent(by air or by sea).
3.By your own forwarding agent.
4.By domestic forwarding agents to any city in China.