NEMA (National Electrical Manufacturers Association) contactors and motor starters are rated by sizes. These sizes are grouped by rated current and power. The contacts may be converted from normally open to normally closed with no additional parts.
Lift coil and magnet from movable arm.
Remove return spring from center of movable arm.
Depress movable contact spring and.
Nema Starter Sizes based on Motor Horsepower and Voltage.
Rockwell Automation Publication 300-TD003A-EN-P. Resistance and Power Dissipation. Main current circuit resistance.
Service-Limit Current Ratings — The service-limit current ratings that are shown . Nema sized contactors or starters.
Available with current ratings up to 30A. Motor Logic Solid State Overload Relays . Combining NEMA robustness and IEC compactness. If condensing moisture is present, space heater kits should be used to prevent condensa- tion when contactor is not energized.
Class B (1ºC) coil insulation.
Customers get the ease of choosing the product, the reliability of. WEG quality, and still get the sophisticated arc quenching techniques to . NEMA starters are ideal for applications requiring dependability and durability. These starters are built rugged to withstand the most severe and demanding industrial and continuous duty commercial applications in the industrial and construction markets.
This includes standard full NEMA sizes and motor matched half sizes . C3Electronic Overload FLA Range. Contactor only — no overload relay. Bimetallic overload relays are also available for.
Ambient Compensated and Non - compensated versions are supplied with manual.
NEMA ratings are based on maximum horsepower ratings as specified in the National Electrical Manufacturers Association.
No comments:
Post a Comment
Note: only a member of this blog may post a comment.