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Brass inserts molded into the flyweight housing retain the 2 shaft bearings.
Speed Adjustment - Speed points at which contacts operate are easily adjustable in the field within the standard operating ranges. Switches are
ACTION INDEPENDANTLY ADJUSTABLE FROM THE REAR WHILE THE SWITCH IS ROTATING. Also the speed setting of both sets of contacts can be changed at the same time by varying the tension on the adjustment spring with the adjustment nut. Turning the spring adjustment nut or the contact adjust- ment screws in a clockwise direction will cause the contacts to operate at a higher speed, but making these adjustments in a
Contact - The contact compartment provides several basic
AMPERES
MAXIMUM CONTACT INTERRUPTING RATINGS
TYPE OF | AC 35% PF |
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CONTACT |
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120v | 240v 480V | 125v | 250v | |||
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*SLOW ACTION |
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Non Directional |
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3 | 15 | .75 | .75 | .35 | ||
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Directional |
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*SNAP ACTION | 3 | 1.5 | .75 | .25 | .12 | |
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*SNAP ACTION | … | … | … | .60 | .25 | |
DC Type | ||||||
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* Rating based on a min. of 1/32" contact gap.
One set or two sets of normally open and/or normally closed
These two separate sets of contacts can be adjusted for operation at different speeds so that two separate operations can be con- trolled from one speed sensitive switch. Therefore, it is possible to perform two differ- ent functions at two different speeds.
A directional sensing form of the switch em- ploys
Type C Centrifugal Switches are available for operating in various speed ranges of adjust- ment between 10 and 4700 RPM on in- creasing speed. The specific range of ad- justment that is selected determines the fly- weight assembly and the adjustment spring that is used.
The contact adjustment ranges of centrifugal switches with 2 contacts (shown in the table of the price list) are for both contacts operat- ing simultaneously. The 2 contacts can be adjusted independently, however, that opera- tion changes the adjustment range from that shown.
The ranges of adjustment listed are for switches mounted horizontally. Vertically mounted switches with the shaft extension down have different ranges of adjustment. A special wide range adjustment can be sup- plied on special order.
The recommended maximum running speed of a switch with heavy flyweights is 1800 RPM, with medium flyweights is 4000 RPM and with light flyweights is 5000 RPM.
OPTIONAL FEATURES
Manual Reset - When specified, EUCLID Type C Centrifugal Switches can be fur- nished with one or two manual reset buttons (one for each set of
Flexible Couplings - A Flexible Coupling should be used to connect the Centrifugal Switch shaft to customer's shaft in order to compensate for minor misalignment of the shafts. Couplings can be supplied with a 1/2", 5/8" or 3/4" bore for customer's shaft and a 5/8" bore for our shaft. Standard key- ways can be furnished. Specify by catalog number on Price List 2210.
Magnetic Vibration Dampeners - counter- acts destructive action of the "dither". Spec- ify by catalog number on Price List 2210.
Air Valve Actuating - Type AV, air valve instead of electrical contacts for pneumatic systems. Refer to factory with application data.
Speed Increaser - 3 to 1 ratio can be mounted at the factory which permits the input shaft speed of the speed increaser to be 1/3 the normal input shaft speed. Specify by suffix number "S" for Single Speed In- creaser and "SS" for Double Speed In- creaser. Refer to Price List 2210.
Hubbell Industrial Controls, Inc.
A subsidiary of Hubbell Incorporated
4301 Cheyenne Dr., Archdale, NC. 27262
Telephone (336)
