Description

Shantou Yu source brand, all copper wire, electronic door, far infrared, anti-theft alarm system power supply transformer, power 25W,Input 220V, 2 red lines,Output 16.5V, 2 wire, current 1.5A,The core size of EI57 * 35, the main supply of active speaker, multimedia speaker, IC card punch machine, automatic control circuit etc.. The installation hole distance is 70-74mm, and the length and width are as follows: 92 * 53 * 52mm.Leads to the line can be customized according to customer requirements.

The product can also be used in communication equipment, electrical and electrical, fitness equipment, IT equipment, household electrical appliances, small household appliances and lamps and lanterns, etc..

Due to changes in raw material prices, price is for reference only, please contact with or or qq:766752685 want to contact.

Offer free shipping, thank you for your cooperation!

[special note]:

After the buyer received a baby, please first look at the packaging is intact, if there is damage, it should be to inform the courier, check the inside of the baby is damaged. If it is damaged, please refuse to sign, and contact the seller, to discuss how to deal with.

Second, the friends of buyers received after the baby, if not found the packaging is damaged, please when a courier apart, view model and you buy as, if you buy is not the same, please do not sign, courier to return, and contact the seller, to discuss if the solution. If you buy, you can sign, sign in the measured baby no-load (i.e. not connected with appliances or measuring circuit) is normal, normal in the measurement of load and to confirm intact and connected with electric appliances and circuit. Because some appliances or circuit is a problem, leading to burn out of the power transformer, if not with the appliances or circuit problem solving, new power transformer will be damaged, so ask buyers friend to carefully measure to distinguish between the problem. If there is no measurement is connected with electric appliances and circuit, regarded to confirm the good baby, which because of improper use of caused by damaged baby or appliances damaged the seller will not take any responsibility, kindly forgive forgive me. Thank You for Your Cooperation.

We are manufacturers,Can be designed and produced according to the buyer's needs,Optional input voltage220V/110V/380V(such asOptional customOutput voltage from 6V/7.5V/9V/12V/15V/18V/20V/22V/23V/24V/28V/32V/36V all have,Output voltage can also be optional. Power from 2W/3W/5W/6W/8W/9W/10W/12W/15W/20W/25W/30W/40W/48W/60W/70W, size from EI28, EI35, EI41, EI48, EI57, EI66, EI76, EI86 a variety of specifications for the choice, the amount of large price favorably! Welcome to call consulting, business negotiations.

Power transformer with input and output leads,Note: the input leads are red, and the output leads are blue and black,Brown,green,Yellow and other colors,Should pay attention to the correctWiring, wrong wiring will damage the transformer,LeadLength can be customized according to the buyer, the size of the size of the seller according to the actual needs of the,If the buyer has special requirements,Need to change please contact the seller. IfWith your transformer terminal or socket, it is not easy to handle, because terminal or Jack is difficult to find the same, only their wiring the.

Shopping tips:

If they don't take in, direct payment can be commodity. Large quantity, please contact the seller and contact Debon logistics, world Hua Yu logistics company or freight company and notify the store to modify the freight can be.

Prior to the day 14 points before the transaction payment, the day can be shipped, the buyer friends did not specify the logistics company,Default delivery is excellent speed express, if you do not have the advantages of fast delivery, please contact the seller, to discuss the hair in the passfastDeliveryThe daily express, express, rhyme, lbex logistics.Need tact, Huitong, Shen Tong, SF express please contact the seller, freight be change.

Guangdong Province, the first heavy 10 yuan / kg for each additional 1kg plus 1 yuan, beyond less than 1kg is in accordance with the above 1kg calculation, and 1kg. For details, please contact the store. Express charge calculation is based on weight, sometimes a more than 1KG, sometimes a few less than 1KG, please refer to the above"Power transformer power size charts and tables",Please contact the store

Thank you for your cooperation!

1What does the nominal voltage and current of the power transformer mean? The nominal voltage of the power transformer is usually referred to as the open circuit output voltage, which is not connected to any load.(that is, no load)Voltage value. Generally ordinary transformer real no-load voltage and nominal voltage completely consistent, because electronic components characteristics may not be exactly the same, so allow a certain error, civil case is generally than the nominal voltage to high 0.6V-1V about(if the buyer is special, need accurate voltage, please place the order)Because this test filter rectifier filter circuit about 0.6V of the voltage drop, so the no-load voltage is generally higher than the nominal voltage of about 0.6V-1V. Regardless of any power transformer, there is some resistance, so when the output current of power transformer, in creating internal pressure drop, equal to the output current multiplied by the power transformer internal resistance. Normally limit a current value, when the output current is worth the time, the output voltage is reduced to 95% of the nominal voltage, or other ratio, the current value is the nominal current.

2The same nominal voltage of the power transformer, the output current is different, can not be used in the same appliance?

Theoretically the same voltage, large nominal current power supply transformer can be replaced by a small nominal current of the power transformer. Large nominal current of power transformer without burning appliances, because current electricity much in the same voltage depends on the load, is the use of electrical appliances. When the high load operation of electrical appliances, the current larger; when the use of electrical appliances into the standby time, the current smaller; in short, the current is equal to the voltage on the use of electrical appliances and the equivalent resistance of electrical equipment. Large nominal current supply transformer has sufficient current margin, not in place of the small nominal current power transformer after the occurrence of overheating or output voltage is too low. On the contrary, using a small current power supply transformer instead of a large current power transformer, there is the risk of. Must be described in terms of some friends with 10W power transformer instead of 12W. It also did not find any problems, the reason is usually power transformer design leave some margin, the load power should be less than the power of a power transformer, so this place is not a long time, it is best not to used for small power transformers instead of large power transformers.

3Power transformerThe most afraid of the output line to touch the end of a short circuitBecause of this, will soon burn out of the power transformer, so please friends in the measurement or connected circuit,Should pay special attention to check, can not touch the line to cause a short circuit, so as not to damage the power supply transformer.

4And the normal work of power transformer will heat, this is normal phenomenon, when heated to a certain extent will no longer go up and load power (electricity), the size of the relevant, the load power is greater, the more heat.When the heat is too high, it should be suspended for more than 70 degrees Celsius, so as not to damage the power transformer.

Note: if there are two models in a link, according to their own needs to ask the seller price. Different models have different prices. Otherwise, the seller will ship according to the default model or parts.