SKU: 81655703504

AVR MX341 Automatic Voltage Regulator Module For Stamford Generator

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Description

AVR MX341 Automatic Voltage Regulator Module For Stamford GeneratorFeature: MX341 is a two phase sensed Automatic Voltage Regulator and forms part of the excitation system for a brush less generator. Excitation power is derived from a three phase permanent magnet generator (PMG), to isolate the AVR control circuits from the effects of nonlinear loads and to reduce radio frequency interference on the generator terminals. Sustained generator short circuit current is another feature of the PMG system. The AVR senses the

Feature:
MX341 is a two phase sensed Automatic Voltage Regulator and forms part of the excitation system for a brush-less generator. Excitation
power is derived from a three-phase permanent magnet generator (PMG), to isolate the AVR control circuits from the effects of nonlinear
loads and to reduce radio frequency interference on the generator terminals. Sustained generator short circuit current is another feature of the PMG system.

The AVR senses the voltage in the main generator winding and controls the power fed to the exciter stator and hence the main rotor to
maintain the generator output voltage within the specified limits, compensating for load, speed, temperature and power factor of the generator.

Soft start circuitry is included to provide a smooth controlled build up of generator output voltage.

A frequency measuring circuit continually monitors the shaft speed of the generator and provides under-speed protection of the excitation
system by reducing the generator output voltage proportionally with speed below a pre-settable threshold. 聽A further enhancement of this
feature is an adjustable volts per Hertz slope to improve engine recovery time on turbo charged engines. 聽Soft start circuitry is included to
provide a smooth controlled build up of generator output voltage.

Uncontrolled excitation is limited to a safe period by internal shutdown of the AVR output device. This condition remains latched until the generator has stopped.

Provision is made for the connection of a remote voltage trimmer, allowing the user fine control of the generator's output.

An analogue input is provided allowing connection to a Newage Power Factor controller or other external devices with compatible output.

The AVR has the facility for droop CT connection, to allow parallel running with other similarly equipped generators.

Specifics:
Condition: 100% Brand New
SENSING INPUT

Voltage 190-264V ac max, 1 phase, 2 wire
Frequency 50-60 Hz nominal
POWER INPUT (PMG)

Voltage 140-220V ac max, 3 phase, 3 wire
Current 3A/phase
Frequency 100-120 Hz nominal
OUTPUT

Voltage max 120V dc
Current continuous 2.7 A
Intermittent 6A for 10 secs.
Resistance 15 ohms minimum
REGULATION

+/- 1% (see note 1)
THERMAL DRIFT

0.03% per oC change in AVR ambient (note 2)
SOFT START RAMP TIME

3 seconds
TYPICAL SYSTEM RESPONSE

AVR Response 10 ms
Filed current to 90% 80 ms
Machine Volts to 97% 300 ms
EXTERNAL VOLTAGE ADJUSTMENT

+/-10% with 1 k ohm 1 watt trimmer (see note 3)
UNDER FREQUENCY PROTECTION

Set point 95% Hz (see note 4)
Slope 170% down to 30 Hz
UNIT POWER DISSIPATION

12 watts maximum
ANALOGUE INPUT

Maximum input +/- 5V dc (see note 5)
Sensitivity 1v for 5% Generator Volts (adjustable)
Input resistance 1k ohm
QUADRATURE DROOP INPUT

10 ohms burden
Max. sensitivity: 0.07 A for 5% droop 0PF
Max. input: 0.33 A
OVER EXCITATION PROTECTION

Set point 75 V dc
Time delay 10 seconds (fixed)
ENVIRONMENTAL

Vibration 20-100 Hz 50mm/sec
100Hz 鈥?2kHz 3.3g
Operating temperature -40 to +70oC
Relative Humidity 0-70oC 95% (see note 6)
Storage temperature -55 to +80oC

NOTES:
1. With 4% engine governing.
2. After 10 minutes.
3. Applies to Mod status D onwards. Generator de-rate may
apply. Check with factory.
4. Factory set, semi-sealed, jumper selectable.
5. Any device connected to the analogue input must be fully
floating (galvanically isolated from ground), with an
insulation strength of 500V ac
6. Non condensing.

Package Included:
1 X Product Instructions
1 X MX341 Automatic Voltage Regulator


Warranty:
Returns: Customers have the right to apply for a return within 60 days after the receipt of the product
24-Hour Expert Online: Solve your installation and product problems


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 81655703504

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HeldForRansom
Boise, US
★★★★★ 5
Must have for coffee drinkers will love
The coffee drinkers wet dream. This works so well and it one of the best additions to our house. The ease of use and the way it works make my husband and son just love their coffee. I don't drink coffee but I know this machine is too notch as they swear by this. Quality as well as workmanship are bar none.
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Reviewed in the United States on May 18, 2026
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Andrew
Lowell, US
★★★★★ 4
Solid, but not without fault.
Got it on sale for 90$ and honestly it’s been pretty solid. After making espresso, the grounds are always left watery, but that’s just a design fault in trying to achieve more pressure. The coffee is pretty consistent and solid, a pretty good value for what it is. My main issue is that it leaks water now randomly after about a year of use, which ultimately warped the coffee station it sat on. I know some bigger brands that begin leaking after time as well. So for under 100$, I got what I paid for. this saw some heavy use and got the job done. Probably wouldn’t buy again though.
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Reviewed in the United States on March 12, 2026
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Steven Chenevey
Massapequa, US
★★★★★ 5
Worth a lot more than I paid!
I waited a year before making this review. I could not be more impressed with how well this machine has been performing, regardless of its low price. I have been making two or three americacano's a day for a year. Every cup is just like the last. It takes about 90 seconds to have a hot eight ounce americacano! The only time it leaks is if I grind the beans too fine. Once I dial in my grinder, Im set until I switch to different bean. I feel like I have already got my moneys worth. If it died tomorrow, I would order another one.
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Reviewed in the United States on April 27, 2026
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Elizabet Santos
Phoenix, US
★★★★★ 5
The coffee is very tasty
This 20-bar espresso machine is compact, stylish, and very easy to use. It makes great-tasting coffee with a nice crema, and the steam wand works perfectly for cappuccinos and lattes. The water tank is spacious and convenient, and the display showing brew time and water temperature gives it a modern touch. Perfect for enjoying great coffee at home without taking up much space… I’m in love with my coffee maker 😍
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Reviewed in the United States on January 29, 2026
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Jessamy Hutchins
Lexington, US
★★★★★ 1
Wonderful so far! UPDATED REVIEW: little over a month later...
Reducing to 1* due to machine being defective. No longer exerting enough pressure for good shots and the portafilter has started leaking. I've done all troubleshooting and steps that should be taken for these issues to no success. Machine is basically a hot water machine now. 4.5* The warmer on top could certainly be better but other than that I haven't had any issues. Seems to be as advertised. It's definitely quieter than my nespresso machine and makes a better shot for sure. Getting the grind and tamping right takes a bit of trial and error if you're new to making espresso but once you get that down, this machine will do what you need. The Americano option is also a little wonky imo but I haven't messed with it very much. I just run my shots and use the hot water function when I make an americano 🤷🏻‍♀️ as long as it lasts it seems like it's gonna be a great purchase 😌
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Reviewed in the United States on May 1, 2025

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