is this genuine stamford or is it a replacement

Hi ChristopherThis is a generic reoplacement that carries a 1 year warranty. We also have the original available at our Amazon store.Ed

Quiero saber si es buen producto y si lo recomiendan

Hasta el momento funciona a la perfección. Y salvo problemas de fabricación como cualquier producto electrónico es recomendable

do you have a wiring diagram for converting from 350-28700 avr to the as440 avr?

If you are going to use the AS440, you won't be connecting P2,P3&P4, for the PMG. They will need to be safely isolated and taped off. 7 &8 are your voltage sensing wires, may also be labeled 2& 3, go on the terminals marked as such. The exciter wires are x and xx and go on the terminals marked as such. All the markings are on the back side of the regulator. Don't forget to set the jumpers for you correct Hz and pole arrangement. This is also shown on the paperwork sent with the regulator.

My as 440 has a transformer on it, this one does not appear to. what is the diference?

First make certain it is the same model. Second,the transformer may have been replaced with other components. None of the replacement AS440 have a transformer.

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Description

⚡ Power your gear with precision and confidence!

TRUSTED REPLACEMENT - Generic replacement for Cummins AS440 ensures seamless integration without compromise.
PEACE OF MIND WARRANTY - Backed by a 2-year warranty, guaranteeing long-term reliability and support.
PRECISION POWER CONTROL - Maintain stable output with ±1.0% voltage regulation for reliable performance.
ROBUST CURRENT HANDLING - Supports continuous 4A current with a minimum 15Ω resistance for durability under load.
UNIVERSAL COMPATIBILITY - Easily jumper-select input voltage between 100-130V or 190-264V AC to fit diverse setups.

The Thunder Parts AVR AS440 is a generic automatic voltage regulator designed as a direct replacement for the Cummins AS440. It features jumper-selectable input voltage ranges (100-130V or 190-264V AC), ±1.0% voltage regulation accuracy, and supports continuous 4A current with a minimum 15Ω resistance. Packaged with a 2-year warranty, this compact 12-ounce unit ensures reliable, stable power conversion for vehicle and watercraft alternators.

Specifications

ASIN	B01IDRW0MM
Best Sellers Rank	#630,316 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,866 in Power Converters
Customer Reviews	4.1 4.1 out of 5 stars (19)
Date First Available	July 13, 2016
Is Discontinued By Manufacturer	No
Item Weight	12 ounces
Item model number	AS440 AVR
Manufacturer	Thunder Parts
Package Dimensions	6.4 x 4.6 x 2.4 inches

Reviews

M**S

Excellent, value of money

Material delivered sooner as expected delivery, excellent in quality.

25.08.2019

M**L

Malo se reventó explotó

18.04.2024

Y**A

No funsiono vinos defectuosa .. la envie a Venezuela y perdí el dinero de la compra más el dinero del envió la tarjeta no sirve

18.07.2019

H**N

Five Stars

Spare sought and delivered according to expectations

6.03.2017

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AS440 | Generic Replacement for Cummins AS440 Automatic Voltage Regulator

Description

Specifications

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Common Questions