Spares / Alternators and Spares / Stamford AVK Alternators and Spares / Stamford AVRs and Spares

Stamford AVRs and Spares

Genuine OEM AVR Automatic Volltage Regulators, Control Modules and Rectifier Repair kits to suit Stamford and Newage Alternators.



Buying a genuine Genuine NEWAGE® | STAMFORD® AVRs ensures:
 
  • Minimised risk of plant and equipment failure
  • Maximised power supply security
  • Matched performance capability to alternator ensuring stability and responsiveness
  • A product that is tested to react in emergencies, triggering support protection systems
  • 12 month warranty as standard

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Automatic Voltage Regulators (AVRs) are a vital component of your alternator.
To ensure the consistent operation and long-term lifespan of your alternator it is essential you buy genuine.

 

STAMFORD AVR SELECTION
STAMFORD Automatic Voltage Regulator (AVR) & Accessory Selection Tables.

The table below will indicate which AVR accessory is available for, or incorporated into each product range.


 

MX321

MX341

SX421

SX460

AS440

AS480

DM110

P0/P1

N

N

N

N

N

S

N

UC22

O

O

O

S

O

N

N

UC27

O

O

O

S

O

N

N

HC4

O

O

O

N

S

N

N

HC5

O

O

O

N

S

N

O

HC6

S

N

N

N

N

N

O

P7

O

S

N

N

N

N

O

MV7

S

N

N

N

N

N

N

P80

N

N

N

N

N

N

S = Standard | O = Option | N = Not available

 

AVR Features

MX321

MX341

SX421

SX 460

AS440

AS480

DM110

Voltage Regulation

0.5%

1%

0.5%

1%

1%

1%

+/- 0.25%

UL 1004 Compliant

No

Yes

No

Yes

Yes

Yes

Yes

Three Phase Sensing

Yes

No

Yes

No

No

No

Yes

Sensing

Short Circuit Current Limiting

Yes

No

No

No

No

No

Yes*

Under Frequency Protection

Yes

Yes

Yes

Yes

No

Yes

Yes

Load Acceptance Feature UFRO

Yes

Yes

No

No

No

Yes

Yes

Accessories

Excitation circuit breaker**

Yes

No

Yes

No

No

No

No***

RFI suppressor kit

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Separate voltage trimmer

Yes

Yes

Yes

Yes

Yes

Yes

No****

Quadrature droop kit (3 phase)

Yes

Yes

Yes

No

Yes

Yes

Yes

Power factor controller - PFC3

Yes

Yes

Yes

No

Yes

No

Integrated into AVR

Remote control interface

Yes

Yes

Yes

Yes

Yes

No

Integrated into AVR

Excitation loss module

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Diode failure detector

Yes

Yes

Yes

No

Yes

Yes

Yes

Alternator protection module

Yes

Yes

Yes

No

No

No

Yes

Frequency detection module

Yes

Yes

Yes

No

No

No

Yes

Dual AVR (manual change over)

Yes

No

Yes

No

No

No

No

Manual voltage regulator

Yes

Yes

No

No

No

No

Integrated into AVR

Line drop compensation

Yes

Yes

Yes

Yes

Yes

Yes

No

* Achieved by excitation voltage limiting.
** The excitation circuit breaker supports the overvoltage protection on the MX321.
*** Terminal rail allows external 2 or 3 pole circuit breaker to be used which breaks 2 or 3 phases of the PMG.  
Both functions are facilitated by the excitation circuit breaker on the SX421.
**** External voltage trimming is achieved using raise and lower switch contacts.