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S&C Instruction Sheet 465-500
Introduction
Operating
Considerations
The VacuFuse Self-Resetting Interrupter is factory-set with a fuse link TCC curve,
an open interval between the initial trip (TCC0) and the first test (TCC1) of between
0.5 and 5 seconds, as well as the sequence reset time (between 30 seconds and 15 minutes).
The sequence of operation is as follows: the recloser will open once in response to
the fuse link curve (TCC0) and will have an open interval lasting a factory-programmed
number of seconds. Then, it will close, and the fuse-link curve will again become active
(TCC1). If the fault is still on the line, the VacuFuse Self-Resetting Interrupter will open
and lock open. If fault current is not still on the line, the Sequence Reset Timer will begin
timing. If another fault occurs during this time, the VacuFuse Self-Resetting Interrupter
will open and lock open. If this timer expires without the VacuFuse interrupter detecting
fault current, the VacuFuse interrupter will reset to TCC0.
The VacuFuse Self-Resetting Interrupter will operate on the fuse-link curve differently
depending on the position of the MODE SELECTOR lever. For more information, see the
“Setting the MODE SELECTOR Lever” section on page 16.
Warranty
The warranty and/or obligations described in S&C’s Price Sheet 150 “Standard Conditions
of Sale–Immediate Purchasers in the United States” (or Price Sheet 153, “Standard
Conditions of Sale–Immediate Purchasers Outside the United States”), plus any special
warranty provisions, as set forth in the applicable product-line specification bulletin,
are exclusive. The remedies provided in the former for breach of these warranties shall
constitute the immediate purchaser’s or end user’s exclusive remedy and a fulfillment of
the seller’s entire liability. In no event shall the seller’s liability to the immediate purchaser
or end user exceed the price of the specific product that gives rise to the immediate
purchaser’s or end user’s claim. All other warranties, whether express or implied or
arising by operation of law, course of dealing, usage of trade or otherwise, are excluded.
The only warranties are those stated in Price Sheet 150 (or Price Sheet 153), and THERE
ARE NO EXPRESS OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE. ANY EXPRESS WARRANTY OR OTHER OBLIGATION
PROVIDED IN PRICE SHEET 150 (OR PRICE SHEET 153) IS GRANTED ONLY TO THE
IMMEDIATE PURCHASER AND END USER, AS DEFINED THEREIN. OTHER THAN AN
END USER, NO REMOTE PURCHASER MAY RELY ON ANY AFFIRMATION OF FACT OR
PROMISE THAT RELATES TO THE GOODS DESCRIBED HEREIN, ANY DESCRIPTION
THAT RELATES TO THE GOODS, OR ANY REMEDIAL PROMISE INCLUDED IN PRICE
SHEET 150 (or PRICE SHEET 153).
