20A AVR Automatic Voltage Regulator for Generator
AVR-20A Voltage Regulator is an electronic device which lets the alternator to produce fixed output voltage. It has open chassis, resin molded design and is intended to be mounted in the alternator's terminal box.
AVR-20A measures the voltage between one of the alternator phases and the eutral point and adjusts the DC voltage applied to the excitation winding until reaching the desired voltage.
The output stage of the device is a Half Wave tyhristor output associated with a free wheeling diode.
Basically the unit is compatible with all brushless type alternators. A stability adjustment potentiometer is also provided for this purpose.
The AVR-20A has a special relay-less electronic circuit design. The required minimum residual voltage for build up is 5 V-AC. The unit does not include moving parts; therefore it is able to operate in highly vibrating environments.
The AVR-20A includes a low frequency protection circuit. This feature reduces the output voltage during overload or engine stop. Therefore the diesel engine is protected from excessive torque generated by high startup currents of large electrical equipments.
Similarly, the diesel engine may be stopped under load without damage.
Why Choose Us?
1.Gold Supplier on Alibaba for 5 Years → Reliable Supplier with Good Reputation
2.Factory Direct Sale → Competitive Price & Full Stock
3.Quality Control → High Quality
4.Low MOQ → Accept Small Order
5.Accept OEM → Produce Products as Customers' Requirements
6.Fast Delivery → Delivery within 3 Working Days
7.Various Payment Methods → Easy to Pay
8.Changing or Refunding → Accept Returns
We also have other AVR
| NO |
Name |
Model No |
| 1 |
AVR |
SX460 |
| 2 |
AVR |
SX460A |
| 3 |
AVR |
SX440 |
| 4 |
AVR |
SX440A |
| 5 |
AVR |
AS440 |
| 6 |
AVR |
AS480 |
| 7 |
AVR |
MX341 |
| 8 |
AVR |
MX321 |
| 9 |
AVR |
R220 |
| 10 |
AVR |
R230 |
| 11 |
AVR |
R250 |
| 12 |
AVR |
R438 |
| 13 |
AVR |
R448 |
| 14 |
AVR |
R449 |
| 15 |
AVR |
R450 |
| 16 |
AVR |
SE350 |
| 17 |
AVR |
GAVR-8A |
| 18 |
AVR |
GAVR-12A |
| 19 |
AVR |
GAVR-15A |
| 20 |
AVR |
GAVR-20A |
| 23 |
Recifiter |
33025777 |
| 24 |
Recifiter |
SSAYEC432 |
| 25 |
AVR |
6GA2-490-0A |
| 26 |
AVR |
6GA2-492-1A |
| 27 |
AVR |
6GA2-491-1A |
| 28 |
AVR |
EA63-4 |
| 29 |
AVR |
EA63-7 |
| 30 |
AVR |
SR7 |
| 31 |
AVR |
M16FA655A |
| 32 |
AVR |
M40FA640A |
| 33 |
AVR |
DVR2000E |
| 34 |
AVR |
M16FA650A |
| 35 |
AVR |
UVR6 |
| 36 |
AVR |
VR6 |
| 37 |
AVR |
STL-3 |
Chongqing Boce Technology Co., Ltd, located in Chongqing's new high-tech industrial development zone, is specialized in Genset Spare Parts:
--Generator Controller Replacement;
-Speed controller, Actuator, as well as Mechnical parts;
--Digital Generator Meters used for different kinds of Engines;
--MPU, Oil pressure sensor, Temperature sensor,Gauges and so on;
--Battery Chargers: BCC6A,BCC10A,BCC12A with updated functions;
--Different kinds of Solenoids;
--Gasoline Spare parts
We have been dedicated to promoting generator set's automatic control since our company is established. Generator's modification and best automatic control products as well as OEM and ODM services are offered for lots of generator users. our aim is "professional technology, superior service
Packing & Delivery
1. Faster delivery: Sample order in stock, and 3-7days for bulk production.
2. Payment: You can pay for the order via: TT, Western union, aliexpress.
3. Shipping :We have strong cooperation with DHL,TNT,UPS,FEDEX,EMS,China air post.
Our Service
1. Guarantee:1 year after selled.
2. During guarantee,the items share free repairs or replacement.
3. Customer is responsible for the freight come-and-go,and the custom tax.
4. You may consider to send the defective item with a economical way,and we send back the repaired items with your new order together.
5. To save the cost,pls send the item back without packing.
6. Pls provide the defective appearance and related invoice number.
7.We do not repair or replace item with an expired warranty.
8.All emails will be answered within 1 business day. If you do not receive our reply, please kindly re-sent your email or give us a call any time.
Any emergency business problem, if I am not available, please kindly contact General Manager Ms Trudy 0086 1852313877, Thanks
Audited Supplier 
){kind=link}
){kind=link}