Avr Units

Providing you the best range of cummins stamford as440 controller avr, automatic voltage regulator r449 avr, avr as540 automatic voltage regulator for stam ford diesel generator, mx321 avr cummins mx321 automatic voltage regulator for generator, stamford sx440 automatic voltage regulator and uvr6 avr automatic voltage regulato with effective & timely delivery.

Cummins Stamford AS440 Controller AVR

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₹ 1000 / Piece Get Latest Price

Power Rating50 kVA
Regulator TypeAVR
Input Voltage Range150-270 V
Rated Voltage240 V
Generator Rating62.5 to 125 kVA
Output Voltage220 V
UsageGenerator

Minimum order quantity: 1 Piece

 It is a widely used, analogue, 2-phase sensing, self-excited automatic voltage regulator (AVR) often found in Cummins-powered generator sets and with STAMFORD alternators.
It is designed to maintain stable output voltage for generators, ensuring reliable power output. Key Features and Specifications of the AS440:
  • Design: Incorporates Surface Mount Technology (SMT) for compactness and reliability.
  • Voltage Regulation: Typically ±1.0%.
  • Power Input: 100-264V AC, 1 phase.
  • Sensing Input: Jumper selectable 100-130V AC or 190-264V AC, 1 phase.
  • Output: 82V DC @ 200V AC (4A continuous, 7.5A transient for 10 seconds).
  • Features: Includes under-frequency protection (UFRO), over-excitation protection, and stability adjustment.

Automatic Voltage Regulator R449 AVR

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₹ 1000 / Piece Get Latest Price

Power Rating3 kVA
Input Voltage Range40-150 V
PhaseThree Phase

Minimum order quantity: 1 Piece

 AVR is an analog, closed-loop automatic voltage regulator designed for Leroy-Somer industrial alternators (LSA series), commonly used in Cummins generators (8100/9100 series) to regulate exciter field current.
Key Features and Specifications: 
  • Excitation Types: Supports AREP or PMG systems.
  • Voltage Regulation: ±0.5%plus or minus 0.5 %±0.5% under steady-state conditions.
  • Remote Adjustability: ±5%plus or minus 5 %±5% remote voltage adjustment range.
  • Protection: Under-frequency protection, short circuit current limitation, and voltage sensing. 
  • Load Acceptance Module (LAM): Drops voltage by ∼15%tilde 15 %∼15% during heavy load impacts to reduce active load.

AVR As540 Automatic Voltage Regulator for Stam Ford Diesel Generator

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₹ 1000 / Piece Get Latest Price

Power Rating50 kVA
Generator CapacityUp to 100 KVA
Input Voltage Range150-270 V
Compatible Alternator BrandCummins
PhaseSingle Phase
Output Current4A
Voltage Regulation±1%

Minimum order quantity: 1 Piece

 AVR is an analog, 2-phase sensing, self-excited automatic voltage regulator (AVR) designed for brushless generators. It is standard on STAMFORD S0 and S1 range alternators (7.5kVA - 62.5kVA). Key Features and Specifications:
  • Voltage Regulation: Less than $\pm$1%.
  • Input Voltage: 95 VAC to 130 VAC or 190 VAC to 265 VAC (selectable).
  • Output Voltage: Maximum 82V DC at 200V AC input.
  • Current: 4A continuous, 7.5A transient (10 seconds).
  • Protection: Built-in Under-Frequency Roll-Off (UFRO), over-excitation protection, and low-speed protection.
  • Applications: Ideal for single-phase or three-phase brushless alternators in standby or emergency power applications.
  • Replacement Part: Often listed as Onan/Cummins A059F437. 

MX321 AVR Cummins MX321 Automatic Voltage Regulator for Generator

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₹ 1000 / Piece Get Latest Price

Power Rating100 kVA
Input Voltage Range170-220 V
PhaseThree Phase
Output Voltage120 V

Minimum order quantity: 1 Piece

MX321 is a 3-phase sensed Automatic Voltage Regulator (AVR) designed for brushless generators that use a Permanent Magnet Generator (PMG) excitation system. It is commonly used with STAMFORD S6 and HC6 alternators to maintain stable output voltage, with high reliability and quick response times to voltage fluctuations. Key Features and Specifications:
  • PMG Powered: The PMG system isolates the AVR control circuits from nonlinear loads, reducing radio frequency interference and enhancing motor starting performance.
  • Voltage Regulation: Provides $\pm$0.5% RMS regulation with 4% engine governing.
  • Input/Output: Handles 190–264V AC, 2- or 3-phase sensing input, with a PMG power input of 170–220V AC, 3-phase. The output is 120V DC, 3.7A continuous.
  • Protection: Features include under-frequency protection (with adjustable Volts/Hz slope), over-voltage protection, and over-excitation protection.
  • Parallel Operation: Includes facilities for droop CT connection, allowing parallel operation with other similar generators. 

Stamford SX440 Automatic Voltage Regulator

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₹ 1000 / Piece Get Latest Price

Power Rating100 kVA
Input Voltage Range130-270 V
PhaseSingle Phase
Output Voltage220 V
UsageGenerator

Minimum order quantity: 1 Piece

SX440 is a half-wave phase-controlled thyristor-type Automatic Voltage Regulator (AVR) designed for brushless generators. It manages generator voltage, ensures stability, and provides under-speed protection. It supports 2-phase sensing, offers ±1%±1% regulation, and is widely used for reliable, stable power output. Key Features and Specifications: 
  • Function: Controls exciter field power to maintain generator output voltage.
  • Type: Half-wave phase-controlled thyristor.
  • Input Voltage: 190-264V AC.
  • Regulation: ±1%±1% with 4% engine governing.
  • Protection: Built-in under-speed (low Hz) protection.
  • Application: Suitable for brushless generators (e.g., Stamford, Cummins).
  • Connections: Includes provisions for paralleling and external voltage adjustment.

Uvr6 AVR Automatic Voltage Regulato

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₹ 1000 / Piece Get Latest Price

Power Rating50 kVA
Input Voltage Range300-500 V
PhaseThree Phase
UsageGenerator

Minimum order quantity: 1 Piece


 It is an advanced, high-performance electronic regulator designed primarily for Mecc Alte alternators, often utilized in Cummins generator sets (particularly those with power outputs ≥≥ 85 kVA). It is a brushless, solid-state unit designed to provide stable voltage regulation during operation and startup. Key Technical Specifications 
  • Sensing Voltage Input: 220-480V AC (1 or 3 phase).
  • Input Frequency: 50-60 Hz (selectable).
  • Output Voltage: Maximum 63V DC at 220V AC input.
  • Output Current: Continuous 6A, with 7A intermittent for 10 seconds.
  • Regulation Accuracy: $<\pm$1.0% RMS with 4% engine governing.
  • External Potentiometer: $\pm$5% using a 100K Ohm pot.
  • Operating Temperature: -40°C to +70°C. 

Stamford SX460 Automatic Voltage Regulator

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₹ 1000 / Piece Get Latest Price

Power Rating100 kVA
Input Voltage Range132 Vac
PhaseSingle Phase
Output Voltage90V Dc
Regulation Accuracy+-1 %
Cooling TypeAir Cooled
UsageGenerator

Minimum order quantity: 1 Piece

It is a half-wave phase-controlled thyristor-type Automatic Voltage Regulator (AVR).
It is the "brain" of a brushless generator, responsible for maintaining stable output voltage by controlling the excitation current, even under varying loads. Here is an explanation of its features, functions, and controls:1. Key Functions
  • Voltage Regulation: Maintains generator output voltage within a tight range, typically +/- 1.0% to +/- 1.5%.
  • Excitation Control: It monitors the output voltage and adjusts the power fed to the exciter field (and subsequently the main field) to keep voltage stable.
  • Under-Speed Protection (UFRO): The AVR continuously monitors the generator speed (frequency). If the speed drops below a pre-set threshold (e.g., 47Hz for 50Hz, 57Hz for 60Hz), the AVR reduces the output voltage proportionally to protect the engine from overload.
  • Positive Voltage Build-up: It ensures the generator produces voltage from low residual magnetism upon startup.
  • Stability Control: It includes a damping circuit to prevent voltage hunting or oscillations. 

MX341 AUTOMATIC VOLTAGE REGULATOR (AVR)

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₹ 1000 / Piece Get Latest Price

Part TypeAVR
Engine ModelSTAMFORD P6, P7, and S7
Part CategoryAVR
Part MakeCummins OEM
Materialsilicone or epoxy resin
ConditionNew
Packaging TypeCarton

Minimum order quantity: 1 Piece

It is an analogue, 2-phase sensing Automatic Voltage Regulator (AVR) developed by STAMFORD | AvK for use in brushless generators. It is designed to maintain a stable output voltage by controlling the excitation system, typically drawing power from a three-phase permanent magnet generator (PMG) to isolate control circuits from non-linear loads.
  • Sensing Input: 190–264V AC max, 1-phase, 2-wire at 50–60 Hz nominal.
  • Power Input (PMG): 140–220V AC max, 3-phase, 3-wire at 100–120 Hz nominal.
  • Output: Maximum 120V DC with a continuous current of 2.7A (intermittent 6A for 10 seconds).
  • Voltage Regulation: Precision of +/- 1.0% when engine governing is within 4%.
  • Environmental: Operating temperature range of -40°C to +70°C.

Cummins AVR, P/N 327-1593, Cummins PCB Assy

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₹ 22000 / Piece Get Latest Price

BrandCummins
Usage/ApplicationIndustrial Genset
TypeAVR
ShapeRectangular
Model Name/Number327-1593
Weight900 gms
We deal in all types of Cummins PCB Assy. This one is genuine/original Cummins PCB Assy, AVR 327-1593.
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