SKU: 66598165411

Automatic Voltage Regulator AVR R120 for Leroy Somer Generator

Sale price$117.09 Regular price$130.10
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Description

Automatic Voltage Regulator AVR R120 for Leroy Somer GeneratorPart Number: OEM NO. R120 Application: For Leroy Somer Generator The R120 is used on the following Leroy Somer Alternators: TAL040 B, TAL040 C, TAL040 C1, TAL040 D, TAL040 E, TAL040 FTAL042 A, TAL042 B, TAL042 C, TAL042 D, TAL042 E, TAL042 F, TAL042 G, TAL042 HTAL044 A, TAL044 B, TAL044 C, TAL044 D, TAL044 D1, TAL044 E, TAL044 H, TAL044 J, TAL044 KSAME EXACT AVR AS: Leroy Somer Voltage Regulator AEM230RE005Leroy Somer Voltage Regulator 4969966

Part Number:

OEM NO. R120

Application:

For Leroy Somer Generator The R120 is used on the following Leroy Somer Alternators:TAL040 B, TAL040 C, TAL040 C1, TAL040 D, TAL040 E, TAL040 FTAL042 A, TAL042 B, TAL042 C, TAL042 D, TAL042 E, TAL042 F, TAL042 G, TAL042 HTAL044 A, TAL044 B, TAL044 C, TAL044 D, TAL044 D1, TAL044 E, TAL044 H, TAL044 J, TAL044 KSAME EXACT AVR AS:Leroy Somer Voltage Regulator AEM230RE005Leroy Somer Voltage Regulator 4969966

thecomponents on the AVR should becompletely encapsulated with suitable PUresin compound to absorb transients/vibrations during operation.Alternator excitation

Specification:

Sensing input:- Voltage: 277 VAC ± 10% for 1-phase,415 VAC line-to-line ± 10% for 3-phase,2-line sensing.
The AVR senses the trueaverage of the line-to-line waveform. Usethe resistor (SMD) network for trouble-freesensing and control of sensed voltage/ regulation.
Input power:- Voltage: 277 VAC rms ± 10%- Frequency: 50/60 Hz
Output power:- Voltage: 95 VDC for 240 VAC Input-
Current:4 A DC6 A for 30 sec. (when allowed by the field resistance)Operating temperature: -20ºC to +70ºC
Storage temperature: -40ºC to +80ºC
Voltage setting: min ± 10% of rated voltage.
Stability setting: can be adjusted to obtaina correct transient response in steady state.
Under frequency roll-off setting: availablebelow 46 Hz for 50 Hz and below 56 Hz for 60 Hz.
Voltage build-up: 2 Volts (L-N)
Voltage regulation: ± 1% at the AVRterminals with a THC <5%.
Thermal drift: ± 1% for 30ºC change in temperature.
Response time: less than 50 ms.
Closed loop response: typically 0.5 sec to recover 98% of the defined voltage for a field forcing ratio of 1:2.
Sensing loss protection: the voltageshould disappear when the sensing circuit is open.
Overexcitation protection: 10 VDC to 85 VDC.
Set point: 60 VDCProtection fuse: 4 A, 240 VAC.
Potentiometer sealing: except for theV-trim potentiometer, all potentiometers are sealed.
Frequency roll-off indicator: LED provided (UF).
Sensing loss indicator: LED provided (SL).
Overexcitation indicator: LED provided (OE).
Protection on the devices: suitable R-Csnubber to be provided for the device usedto protect against voltage surges.
Potting/Encapsulation
(typical)- Full load:Excitation voltage: 40 to 50 VExcitation current: 2.5 to 4.0

Note:It is heavey parts.The freight calculated by system is for air express.Please contact us for freight by sea.

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
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SKU: 66598165411

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Clyde
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★★★★★ 5
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Size: 11SMax-24Pack
You get a lot for the price. And it fits. Recommended. It is a little noisier than the original bit functions are the same
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Reviewed in the United States on January 10, 2026
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Martini81
Bozeman, US
★★★★★ 5
Perfect Fit & Performance
Style: with Pre-Filter
These are an excellent, cost-effective alternative to OEM parts. The brushes and filters fit securely, restore full suction power, and hold up well to daily use. A must-have for maintaining a Eufy RoboVac without the high brand-name price tag.
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Reviewed in the United States on March 24, 2026
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raj
New York, US
★★★★★ 5
Fits well
Style: with Pre-Filter
Good product
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Reviewed in the United States on May 22, 2026
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Erin Mckenzie
Alexandria, US
★★★★★ 5
Works great!
Style: with Pre-Filter
I bought this set to put on my original euphy robot vacuum. It works perfect! All pieces fit perfectly and were so easy to change out. I’ve had the new parts installed for a few weeks and it works so much better now. I recommend them for sure if you need any new parts for yours!
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Reviewed in the United States on May 20, 2026
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Larry Daily
Dallas, US
★★★★★ 5
Perfect Fit
Style: with Pre-Filter
These parts fit our vacuum perfectly and gave us replacements for almost everything. Quick shipping.
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Reviewed in the United States on May 4, 2026

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