Description:Voltage regulation +/-0.5% at steady state and constant speedPhase to phase voltage sensingControls by transistor means the regulation quality is independant of load appliedIntegrated "LAM" system to cope with increased loads applied to the engineSuitable for high levels of viration and harsh environmentsThe R438 is compatible with other modules giving additional functionsStandard power supply: AREP or PMGRated overload current: 8A-10sElectronic protection(overload,shortcircuit on opening of voltage sensing circuitexcitation overload current for 10 seconds then return to approximately 1A).Feature: Automatic Voltage Regulator AVR R438 For Generator
Description:
Voltage regulation +/-0.5% at steady state and constant speed
Phase to phase voltage sensing
Controls by transistor means the regulation quality is independant of load applied
Integrated "LAM" system to cope with increased loads applied to the engine
Suitable for high levels of viration and harsh environments
The R438 is compatible with other modules giving additional functions
Standard power supply: AREP or PMG
Rated overload current: 8A-10s
Electronic protection(overload,shortcircuit on opening of voltage sensing circuitexcitation overload current for 10 seconds then return to approximately 1A).
Feature:
High performance,reliable quality
We work with every effort to provide quality products and professional sensing: 5VA isolated via transformer
0-110V terminals=90-140V
0-220V terminals=170-260V
0-380V terminals=340-520V
Voltage regulation +/-1%
Normal or rapid response time via ST2 jumper
Voltage adjustment via potertiometer P2
Current sensing(parallel operation): C.T. 2.5VA cl1,sencondary 1A(optional)
Quadrature drop adjustment via potertiometer P1
Max,excitation current adjustment via P5
Applications to Alternators: LSA 42.2,43.2,44.2
Compatible with the AREP or PMG exitation system
About Delivery:
We have warehouses in California and New Jersey
We will follow the principle of nearest delivery
When one warehouse is out of stock, it will be shipped from another warehouse
Thank you for your understanding
Package Product List:
1× Automatic Voltage Regulator
1× Product Instructions
Item SpecificsCountry of Origin United StatesBrand marddpairMPN AMZ353202Model R438Equipment Type Voltage RegulatorCustom Bundle NoBundle Description NoModified Item NoStandard power supply AREP or PMGRated overload current 8A-10sVoltage regulation /-1%Applications to Alternators LSA 42.2,43.2,44.2Current sensing(parallel operation) C.T. 2.5VA cl1,sencondary 1A(optional)Voltage sensing 5VA isolated via transformerFuse F1 on X1,X2.8A;slow-250VWarranty 1 year
About us
*. it is preferable that you email us. We will try to answer most emails within 3 days.E043
Shipping
*. We will delivery the package within 3 business day after your payment is cleared by PayPal.
*. We Ship from USA stock! Fast shipping!
Payment
*. We accept Paypal ,Google pay, Visa,Master Card, American Express, Discover. Mastercard etc.
*. After sale closing,pay as soon as possible.
Contact Us
- *. We are open Monday to Friday 8am to 5:30pm Pacific Standard Time, and Saturday 8am to12noon . Our friendly staff are available during these hours. Please feel free send us a message via .
Terms of sales
*. All the items are double checked before shipment, if the item is defect when you recieve it, please contact us for help, we will respond you within 24 hours and resolve your issue asap.
*. If you are not satisfied with the transaction, please contact us . we'll do our best to solve your problems.
*. If you are satisfied with your purchase and services, please give us a positive assessment and comprehensive assessment, the four to five stars.
Hand ToolsEdge finderCollet ChuckTool Post Automatic Voltage Regulator AVR R438 For Generator
Description:
Voltage regulation +/-0.5% at steady state and constant speed
Phase to phase voltage sensing
Controls by transistor means the regulation quality is independant of load applied
Integrated "LAM" system to cope with increased loads applied to the engine
Suitable for high levels of viration and harsh environments
The R438 is compatible with other modules giving additional functions
Standard power supply: AREP or PMG
Rated overload current: 8A-10s
Electronic protection(overload,shortcircuit on opening of voltage sensing circuitexcitation overload current for 10 seconds then return to approximately 1A).
Feature:
High performance,reliable quality
We work with every effort to provide quality products and professional sensing: 5VA isolated via transformer
0-110V terminals=90-140V
0-220V terminals=170-260V
0-380V terminals=340-520V
Voltage regulation +/-1%
Normal or rapid response time via ST2 jumper
Voltage adjustment via potertiometer P2
Current sensing(parallel operation): C.T. 2.5VA cl1,sencondary 1A(optional)
Quadrature drop adjustment via potertiometer P1
Max,excitation current adjustment via P5
Applications to Alternators: LSA 42.2,43.2,44.2
Compatible with the AREP or PMG exitation system
About Delivery:
We have warehouses in California and New Jersey
We will follow the principle of nearest delivery
When one warehouse is out of stock, it will be shipped from another warehouse
Thank you for your understanding
Package Product List:
1× Automatic Voltage Regulator
1× Product Instructions
About usShippingPaymentContact UsTerms of sales
*. it is preferable that you email us. We will try to answer most emails within 3 days.E043
*. We will delivery the package within 3 business day after your payment is cleared by PayPal.
*. We Ship from USA stock! Fast shipping!
*. We accept Paypal ,Google pay, Visa,Master Card, American Express, Discover. Mastercard etc.
*. After sale closing,pay as soon as possible.
- *. We are open Monday to Friday 8am to 5:30pm Pacific Standard Time, and Saturday 8am to12noon . Our friendly staff are available during these hours. Please feel free send us a message via .
*. All the items are double checked before shipment, if the item is defect when you recieve it, please contact us for help, we will respond you within 24 hours and resolve your issue asap.
*. If you are not satisfied with the transaction, please contact us . we'll do our best to solve your problems.
*. If you are satisfied with your purchase and services, please give us a positive assessment and comprehensive assessment, the four to five stars.
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On Aug 23, 2026 at 20:42:51 PDT, seller added the following information:
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