• Fuan Zhongzhi Pump Co., Ltd.
    Vadim Zabiiaka
    Zhongzhi does really good on the design and manufacturing of the products. Experienced engineers service us very nice.
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    Have been working together for more than 3 years very professional. all products work fine in our types of equipment. Thank you.
Contact Person : Semmy Wu
Phone Number : 05936532656
Whatsapp : +8613706040131

Blue Capacitor Easy Spare Parts AVR MX321 18 Watts For Brushless Generator

Place of Origin FUAN
Brand Name ZOZHI
Certification CE, ISO9001
Model Number MX321
Minimum Order Quantity 1PCS
Packaging Details carton box

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Whatsapp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

Product Details
Model Number MX321 Purpose Brushless Generator
Phase Three Phase Usage Generator
Service OEM/ODM Tolerance +/-0.001mm
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Product Description

Blue Capacitor AVR MX321 for Brushless Generator /Diesel Generator Set Automatic Voltage Regulator 


* 3 Phase Sensing Permanent Magnet Generator type voltage regulator is a compatible replacement for Newage MX321 and Onan 305-0823.

* MX321 is a three-phase sensed Automatic Voltage Regulator and forms part of the excitation system for a brushless 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 excitation to maintain the generator output voltage with the specified limits, compensating for load, speed, temperature, and power factor of the generator. Thress phase RMS sensing is employed for superior voltage regulation.

*  Adjustable soft-start circuitry is included to provide a smooth controlled build-up of the generator output voltage.


Sensing Input Voltage 190-264V ac max, 2 or 3 phase
Frequency 50-60 Hz nominal
Power Input(PMG Voltage 170-220V ac max, 3 phase, 3 wire
Current 3A/phase
Frequency 100-120 Hz nominal
Output Voltage Max 120V dc
Current Continuous 3.7 A,
Intermittent 6A for 10 secs
Resistance 15 ohms minimum
Regulation +/- 0.5% RMS with 4% engine governing
Thermal Drift 0.02% per Deg. C change in AVR ambient
Soft Start Ramp Time 0.4 - 4 seconds
Typical system response AVR response 20ms
Filed current to 90% 80 ms
Machine Volts to 97% 300ms
External voltage adjustment +/-10% with 5k ohm 1-watt trimmer
Under frequency protection Setpoint 95% Hz
Slope 100%-300% down to 30 Hz
Max. Dwell 20% volts/S recovery
Unit power dissipation 18 watts maximum
Analogue Input Maximum input +/- 5 Vdc
Sensitivity 1v for 5% Generator Volts (adjustable)
Input resistance 1k ohm
Quadrature Droop Input 10 ohms burden
Max. sensitivity: 0.22 A for 5% droop 0PF
Max. input: 0.33A
Environmental Vibration 20-100 Hz,50mm/se
100Hz – 2kHz, 3.3g
Operating temperature -40 to +70 Deg. C
Relative Humidity 0-70 Deg. 95%
Storage temperature -55 to +80 Deg. C





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Blue Capacitor Easy Spare Parts AVR MX321 18 Watts For Brushless Generator 22


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Guarantee for one year from shipped on board date. During the guarantee period, our company will provide free easy-damaged spare parts for problems caused by our quality of production or raw material, except the damageable spare parts caused by the customer's incorrect artificial operation. In addition, after expiration, our company provides cost spare parts for maintenance.


Our Service:

1. Free maintenance within 12 months guarantee.
2. We cooperate with customers to design and develop a new product.
3. We'd like to assist you in arranging delivery things, test things, or others on your request.
4. Customize production.
1. We are a professional manufacturer with more than 13 years experience in Electric motor
2. We are Made in China Gold Supplier
3. we test the material before production and three to four times when producing to ensure the goods in good quality, also we produce according to request
4. we can be your OEM manufacturer with your authorization of the brand.


1. Q: What’s the MOQ?
A: We accept one piece.

2. Q: Are you a factory or trading company?
A: We are a manufacturer.

3. Q: Can you accept using our logo?
A: Yes, we can do OEM for you.

4. Q: What’s the warranty period?
A: 1 year.


5. Q: What are the terms of payment?

A: T/T. 30% deposit and 70% against the BL copy or 100% LC at sight.