R Transformer

About the R Transformer

The R Transformer is part of the ELEHPD Power Transformer range. R EI 30% 40% 40% R EI 10 R EI 50% R EI R R EI C R R R R R ELEHPD manufactures and exports low voltage electrical products from Yueqing, Zhejiang, China, supplying distributors, panel builders, M&E contractors and OEM buyers worldwide.

Typical applications

Industrial control panels and PLC power rails
LED drivers, signage and display power
Battery charging and DC backup systems
Motor drives, welding sets and rectifier assemblies
Instrumentation and test equipment

How to specify the right Power Transformer

Size the output current with at least 20-30 % headroom over the load
Check the input range covers the local supply, including brown-outs
Confirm the enclosure and cooling method for the panel temperature
Verify the protection set: over-current, over-voltage, thermal and short circuit

Specifications

主　要　特　征：

　R型变压器比EI变压器小30%，薄40%，轻40%。

　R型变压器漏磁最小，比EI型变压器小10倍。

　R型铁芯变压器产生的热量最少比EI型变压器小50%。

　R型变压器不会产生噪音，这一特点远胜EI型变压器或铁芯有间隙的切形铁芯变压器。

　R型变压器与环形变压器相比，工作性能更强，可靠性更高，绝缘性能强，安装简便。

　R型变压器的构造比EI和C型变压简单但可靠性和品质都比它们高。

　R型变压器容许你有细密的设计和减低成本提高效益。

　R型变压器的设计基本上满足全球一切安全标准。

　R型变压器我公司已生产多年，而产量每年增加。采用R型变压器的公司现急剧上升。

　R型变压器主要应用于显示器、打印机、电脑终端机、复印机、图文传真机、卫星广播接收器、高保真音响扩音器、测量和测试设备、电力设备仪器、计量流量仪器、医用电子仪器设备、金融仪器设备、工业设备，电梯升降机、信号设备、监控器报警设备仪器、通讯设备等等。用了R型变压器必能使你的质量效益大大提高。

Frequently asked questions about the R Transformer

How much headroom should I leave on the power rating?

For continuous industrial duty plan on 20-30 % headroom above the measured load. For loads with high inrush, such as motors or capacitive input, allow more and check the surge rating rather than only the average current.

Do these units accept 110 V and 230 V mains?

Input ranges are model-specific and shown in the specification table. Where a wide-range input is available it is stated; otherwise send your mains voltage and we will match the model.

What protection features are built in?

Typical protection covers short circuit, over-current, over-voltage and thermal shutdown. The exact set is listed per model in the specification table above.

Can you supply matching DIN-rail or enclosed versions?

Open-frame, enclosed and DIN-rail variants exist across this family. Send the model you are working from and we will confirm the equivalent mounting option.