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Tap-changer product lifecycle status

Products	Lifecycle	Alternative replacement
Type	Status	Full product replacement
	Motor drives
BUE 2	Active	BUL 2
BUF 3	Active
BUL 2	Active
BUL	Legacy	BUL 2 and BUE 2
BUE 1	Legacy	BUE 2 and BUL 2
BUD	Obsolete	BUE 2 and BUL 2
BUF 1	Obsolete	BUF 3 mounted on UZE/UZF
BUF 2	Obsolete	BUF 3 mounted on UZE/UZF
BUB	Obsolete	BUE 2 and BUL 2
HD	Obsolete	BUE 2 and BUL 2
	Tap-changers
UBB	Active	VUBB
UCG	Active	VUCG
UZE	Active	UZF
UZF	Active	UZE
VUBB	Active	UBB
VUCG	Active	UCG
VUCL	Active	UCL
UCL	Restricted	VUCL
UCC	Legacy	VUCL
UCD	Legacy	VUCL
UCB	Obsolete	(V)UCG, (V)UCL
UCF	Obsolete	(V)UCG, VUBB
UD	Obsolete	Please contact Hitachi Energy
UF	Obsolete	Please contact Hitachi Energy
UT	Obsolete	Please contact Hitachi Energy
UZB	Obsolete	UZE and UZF
UZC 300A and 500A	Obsolete	UZE and UZF
UZC 600A	Obsolete	UZE and UZF
UZD	Obsolete	UZE and UZF
	Selectors
Selector III	Active
Selector C	Active
Selector F	Active
Selector UCC (IV)	Legacy	Selector F
Selector I	Obsolete	Selector C and Selector III
Selector II	Obsolete	Selector C and Selector III
	De-energized tap-changers and switches
UOB	Obsolete	Refer to USTAL, BRABB or ELMEK
UOS	Obsolete	Refer to USTAL, BRABB or ELMEK
UOV	Obsolete	Refer to USTAL, BRABB or ELMEK
UOR	Obsolete	Refer to USTAL, BRABB or ELMEK
BUH	Obsolete	Refer to USTAL, BRABB or ELMEK

Active

Full product production, full service and spare parts available.

Restricted

Product still in full production but not promoted by the sales force. Full service and spare parts available.

Legacy

Full product production not available, limited service and spare parts

Obsolete

Spare parts and service is not guaranteed. Product replacement recommended

Read more about our Product lifecycle management: Here

For more information, please contact our Customer Contact Center
https://www.hitachienergy.com/contact-us