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Potter Electric OSYSU1 - A SUPERVISORY SWITCH SINGLE PULL DOUBLE THROW
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The OSYSU is used to monitor the open position of an OS&Y (outside
screw and yoke) type gate valve. This device is available in two models;
containing one set of SPDT (Form C) contacts and the
containing two sets of SPDT (Form C) contacts. These
switches mount conveniently to most OS&Y valves ranging in size from
2" to 12" (50mm to 300mm). They will mount on some valves as small
as " (12,5mm).
The cover is held in place by two tamper resistant screws that require a
special tool to remove. The tool is furnished with each device and should be
left with the building owner or responsible party. Replacement or additional
cover screws and hex keys are available. See Ordering Information.
Optional Cover Tamper Switch
A fi eld installable cover tamper switch is available as an option which may
be used to indicate removal of the cover. See Ordering Information.
The OSYSU and its associated protective monitoring system should
be inspected and tested in accordance with applicable NFPA codes
and standards and/or the authority having jurisdiction (manufacturer
recommends quarterly or more frequently).
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Potter Electric OSYSU2 - SUPERVISORY SWITCH 25 PDT
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