ABB 3BHE009949R0003 UNS4881b,V3 AVR Unit Item NO.: 2895445

Product Specifications 

Product Model: 3BHE009949R0003 UNS4881b,V3

Type: AVR Unit

Manufacturer: ABB

Place of shipment:Xiamen, China

Delivery Time: 1-3 days

Quantity: 100% New Original

Minimum Order Quantity: 1pc

Shipping Method: DHL\UPS\Fedex\EMS\Others

The ABB 3BHE009949R0003 UNS 4881 B V3 is an AVR Unit assembly designed for the ABB UNITROL 5000 excitation 

system. ABB identifies this assembly specifically as the “UNS 4881 B V3 AVR Unit (COB+MUB) Assembly”, with 

3BHE009949R0003 assigned as its identification number.The assembly combines the COB (Control Board) and MUB 

(Measuring Unit Board) within the AVR unit, providing the control and measurement functions required by the UNITROL 

5000 excitation architecture. Its integrated design allows these functions to operate as part of the excitation control system 

rather than as separate replacement assemblies.As a UNITROL 5000 component, the UNS 4881 B V3 is intended for 

use in industrial excitation-system equipment where reliable automatic voltage regulation and generator excitation 

control are required. 

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