The National Electrical Manufacturers Association provides a chart on the proper arrangement of NEMA configurations. The first order of business is distinguishing between connectors, receptacles, inlets and plugs. The male connectors are to be latched into the load, whereas the female connectors con
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Ease of selection is a fundamental design advantage of a NEMA-style starter. To select a NEMA starter only horsepower and voltage are needed. NEMA starters have interchangeable heater elements and makes NEMA starters attractive in projects where the motor specification is not known until the start-up date.
NEMA Size 2 005 =1–5A 020 = 4–20A 045 = 9–45A NEMA Size 3 100 =20–100A NEMA Size 4 140 =28–140A NEMA Size 5 5 300 =60–300A ... 1 Maximum horsepower rating of starters for 380V 50 Hz applications: 2 Common control. For separate 120V control, insert letter D in 7th position of listed catalog number.
2 NEMA Manual Motor Starters. 36 products. ... NEMA Size M-0 (5) M-1 (3) M-1P (6) Operator Push Button (14) Rocker (2) Toggle (20) Enclosure NEMA Rating 1 (12) 4 (8) 7 (3) 9 (3) 12 (4) 3R (2) 4X (5) No Enclosure (8) View All Amps AC 16 A (13) 18 A (5) 27 A (3) 30 A (1) 36 A (5) Number of Poles ...
2 Rockwell Automation Publication 500-TD014C-EN-P - March 2017 NEMA Contactor and Starter Specifications Specifications Electrical Ratings NEMA Size Load Voltage Continuous Current Rating Service Limit Current Rating (1) (1) Service-Limit Current Ratings — The service-limit current ratings that are shown represent the maximum rms current, in amperes, which the controller shall be permitted ...
If ran on 230 volts then 15 Hp will work just fine on size 2 starter without much issue. with air compressor 15 HP at 200 volt system could take size two starter but right on the limit of rating so typically I go with size 3 or 2 1/2 if I can find it. Just dont mention IEC stuff that is worst than NEMA verison is.
NEMA NEMA ratings are based on maximum horsepower ratings as specified in the National Electrical Manufacturers Association ICS2 standards. NEMA starters and contactors are selected according to their NEMA size, from size 00 to size 9. NEMA Size Continuous Amp Rating HP 230 VAC HP 460 VAC 00 9 1 2 0 18 3 5 1 27 5 10 2 45 15 25 3 90 30 50 4 135 ...
NEMA (National Electrical Manufacturers Association) contactors and motor starters are rated by sizes. These sizes are grouped by rated current and power .  
Maximum HORSEPOWER 3 PHASE MOTORS : Full Voltage Starting: Auto Transformer Starting: Part Winding Starting: WYE - Delta Starting: NEMA SIZE: 200V: 230V: 460V 575V: 200V