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AVR R250 Automatic Voltage Stabilizer AVR For Generator R250EVA

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Address: Room B310,D zone,Qixing business center,No.29 East of Huangcun Road,Tianhe district,Guangzhou.

Contact name:Celia Hou

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AVR R250 Automatic Voltage Stabilizer AVR For Generator R250EVA

Country/Region china
City & Province guangzhou guangdong
Categories Generator Parts & Accessories

Product Details

R250 Automatic Voltage Regulator AVR For Generator Spare Parts



R250 Automatic Voltage Regulator AVR For Generator Spare Parts
1. Type: Automatic Voltage Regulator
2. Condition:New
3. This type is in stock now.



Leroy somer R250 AVR controls the excitation current according to the alternator's output voltage. With a very simple conception, the shunt excitation alternator is auto excited with a R250 and excitation alternator does not have a short circuit capacity, voltage regulation: around ±0.5%.

1.Leroy Somer Automatic Voltage Regulator R250 2. Suits leroy somer brushless alternator 3.Analogic Automatic Voltage Regulator with transistor

4.Applications Alternators LSA 42.2, 43.2, 44.2, 46.2, 47.2. Compatible with the SHUNT excitation system. The R250 is in Compliance with: IEC, VDE, NEMA, BS, CSA, UL508 CE low voltage.


Technical data:

Voltage regulationAround ± 0.5 %
Supply range85 to 139 V
Potentiometer for voltage setting1000Ω /0.5W min. setting range ±5%
Operating at 50 HzThreshold at 48 Hz without LAM forimpactsbetween 30 and 40% of the rated Load
Threshold at 48 Hz with LAM 13% forimpacts between 40 and 70% of the rated Load.
Threshold at 48 Hz with LAM 25% for impacts > 70% of the rated load
Operating at 60 HzThreshold at 58 Hz without LAM forimpacts between 30 and 40% of the Rated load
Threshold at 58Hz with LAM 13% for impacts 40 and 70% of the rated load
Threshold at 58Hz with LAM 25% for impacts > 70% of the rated load
Specific operatingThreshold at 57Hz without LAM for speed variations at a steady state > 2 Hz
Threshold at 65Hz without LAM for speed and tractelec / gearlec (U/F gradient)
Special: the factory setting 48Hz 2U/F gradient; a special programme is Possible on request.
Threshold at 47.5 Hz without LAM for speed variations at a steady state > 2 Hz




More AVR can be supplied: 

Stamford: SX460,SX440,MX321,MX341,AS480,AS440

Leroy somer: R230,R438,R448,R449,R250,R450


Common brushless Avr:8A,12A,15A,20A and so on.


We supply Genuine & Replacement parts as following:

1. Diesel engine piston, piston pin ,piston rings, piston pin clip, liner etc.

2. Connecting rod, connecting rod bush, connecting rod bearing shells etc

3. Crankshaft, crankshaft oil seal,crankshaft bearing shell, piston cooling nozzle etc

4. Camshaft, camshaft thrust pad, tappet, push rod, camshaft gear etc.

5. Cylinder head, rocker arm, valve sets, valve springs, valve seat, collar,oil seal etc.

6. Turbocharger, Filters, inter-cooler etc.

7. Pumps(fuel transfer pump, lube oil pump, water pump), lube oil cooler core etc.

8. Fuel oil injector, injector nozzle, connector, common rail, high pressure pump etc

9.  Starter, electronic parts, governor, air compressor, alternator, fan, belt etc.

10. Gaskets, o-rings, fuel pipes, intake & exhaust pipes, sensors etc

11. Other relevant parts

Our Packaging & Delivery


WeightTransport MeansTransport TimeComments
<50kgUPS/DHL/FEDEX,door to door service3-7 daysFast,convenient
50-150kgby air3-10 daysFast,economic,consignee has to do customs clearance
150>kgby sea10-50 daysSlow,economic,it takes some time for customs and clearance

1. individual package.
2. Iner and Outer Package
3. Bulk order with pallet
4. Customized package

Perfect Service:

1. Your inquiry will answer within 24 hours.
2. You can get our best price.
3. When you confirmed frice,we send the commercial invoice
4. You confirmed the invoice and arrange the bank transfer,we will pack the goods well and ship the goods asap.
5. You can get the reliable after-sales service,when the commodities arrived to your side.

Our Advantage:

1. High-quality Replacement Parts
2. Large Stock Available Within fast delivery
3. Variable Payment:L/C, T/T, Paypal, Western Union,Trade Assurance
4. Reliable After-sales Service

Company Information:
Q: Are you trading company or manufacturer ?
A: We are trading company, foucs on offering solution for customer.
Q: How long is your delivery time?
A: Generally it is 1-2 days if the goods are in stock. or it is 3-30 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for quality testing but not free.
Q: Why choose MocunParts?
A: Professonal in Excavator Parts for years in guangzhou market, With large stock, fast delivery, competitive price and guaranteed servcie.

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