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Your choices are...
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Electromechanical
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Electromechanical speed switches are direct-coupled, speed-indicating devices that open or close the contacts mechanically, as a function of the rotational speed of the switch shaft. The construction of the switch or the adjustment of internal components determines the speed at which the switch trips.
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Electronic
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Electronic speed switches are direct-coupled, speed-indicating devices that open or close a set of contacts using a relay and electronic circuit. User-defined switch settings and the rotational input speed of the switch shaft determine the speed at which the switch trips.
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Magnetic Proximity
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Magnetic proximity switches are non-contact devices which use a proximity sensor to detect a rotating piece of ferrous metal. These speed switches use a microcomputer to count between sensor impulses and circuitry to analyze discrepancies in pulse time. If the impulses depart from preprogrammed limits, a relay opens or closes a set of contacts.
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Other
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Other unlisted, specialized, or proprietary technologies.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Operating Range
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The operating speed range of the zero speed switch. This may also be referred to as the input shaft speed.
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Search Logic:
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User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Trip Point
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The trip point is the approximate speed that triggers the relay.
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Search Logic:
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User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Field Adjustable
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The trip point is field-adjustable by the user.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Power Supply
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Your choices are...
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AC
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Switches operate with alternating current (AC) voltage.
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DC
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Switches operate with direct current (DC) voltage.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Number of Relays
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The total number of output relays.
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Search Logic:
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User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Contacts
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Your choices are...
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SPST
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Single-pole, double-throw (SPDT) switches make or break the connection of a single conductor in a single branch circuit. They typically have two terminals and are called “single pole” switches.
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SPDT
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Single-pole, double-throw (SPDT) switches make or break the connection of a single conductor with either of two other single conductors. SPDT switches typically have three terminals, are commonly used in pairs, and are often called “three-way” switches.
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DPST
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Double-pole, single-throw (DPST) switches make or break the connection of two conductors to two separate circuits. DPST switches typically have six terminals and are available in both momentary and maintained contact versions.
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DPDT
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Double-pole, double-throw (DPDT) switches make or break the connection of two conductors to two separate circuits.
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Solid State
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Solid-state electronics or semiconductor electronics replace mechanical relays and do not contain moving parts.
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Other
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Other unlisted, specialized, or proprietary contacts.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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AC Voltage Rating
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The switch's maximum AC voltage capacity.
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Search Logic:
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All matching products will have a value greater than or equal to the specified value.
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DC Voltage Rating
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The switch's maximum DC voltage capacity.
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Search Logic:
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All matching products will have a value greater than or equal to the specified value.
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Mounting
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Your choices are...
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Base
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Base-mount or foot-mount switches are mounted at the base with external hardware such as screws, bolts, rails, etc.
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Flange
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Switches have internal flanges for mounting with external hardware such as screws, bolts, etc.
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Plug-in
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Switches are installed via standard plug-in sockets (i.e., 8-pin termination).
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Threaded Barrel
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The body of the zero speed switch is externally threaded
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Other
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Other unlisted, specialized, or proprietary mounting styles.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Explosion Proof
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Zero speed switches are rated as explosion proof. This includes NEMA 7/9 and 4X ratings.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Weather and Dust Proof
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Zero speed switches are rated as water/corrosion resistant and dust-tight. These include NEMA 4/5 and 4X ratings.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Over Speed Sensing
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Zero speed switches can provide an over-speed signal.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Operating Temperature
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This is the full-required range of ambient operating temperature.
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Search Logic:
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User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
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