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Quick Details

  • Place of Origin: Chongqing, China (Mainland)
  • Model Number: SX440

Packaging & Delivery

Packaging Details 18*15.3*7cm 0.5KG/ PC Standard Export Packing/ Neutral Packing/ Customized Packing
Delivery Time 1-3 days


 We supply the replacement of Stamford AVR SX440 .

            Stamford AVR SX440: 1.Online Service 2.SX440 AVR in stock 3.Free Quality Warranty 4.Best Price, Discount for big orders               


    Stamford AVR SX440 Automatic Voltage Regulator


SX440 is a half-wave phase-controlled thyristor type Automatic Voltage Regulator (AVR) and forms part of the

excitation system for a brush-less generator.


In addition to regulating the generator voltage, the AVR circuitry includes under-speed and sensing loss protection features. Excitation power is derived directly from the generator terminals.


Positive voltage build up from residual levels is ensured by the use of efficient semiconductors in the power circuitry of the AVR.


The prices on our website are only for reference, welcome to contact us for discount!


Technical specification


Voltage  190-264V ac 

Frequency  50-60 Hz nominal

Phase  1

Wire  2


  Voltage  max 90V dc at 207V ac input

  Current  continuous 4A dc

           Intermittent 6A for 10 secs

  Resistance  15 ohms minimum


           +/- 1% (see note 1)



  0.04% per deg. C change in AVR ambient (note 2)



  AVR response    20ms

  Filed current to 90%  80 ms

  Machine Volts to 97%  300ms


Our Advantage:

  1. Quality Guarantee: With over 20 years professional experience in generator parts area, we are ISO9001:2008 Certificated, and we are supplier to CCEC (Chongqing Cummins Engine Company), all our parts are under strict quality controlled!
  2. Large Stock: We are the biggest manufacture in generator parts area, usually we keep over 100pcs stock for each of our parts;
  3. Great Price: Because our production quantity is big, our average cost is much lower, thus we can give very reasonable price to customers;
  4. Quick Delivery: We have established good relations with main International Express Delivery Company—DHL, UPS, FEDEX, TNT, EMS, ARAMEX and etc, not only you can get quick delivery, but also the freight charge is very reasonable.
  5. Online Service: Even at our night time, you can contact us by Skype, MSN, Yahoo Messenger and Email, please send us email from our website to get our contact details.
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