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Knockout and Clearance Diameter Machine Terminal Boxes NEMA
The NEMA diameter of the knockout, excluding any projection of breakout ears or tabs, and the clearance hole in the terminal box of a machine shall be in accordance with the following:
Totally Enclosed Fan-Cooled Induction Motors Efficiencies
This table defines the nominal efficiencies for totally enclosed fan-cooled induction motors that ar rate at 600 V or less (Random Wound).
Drip-Proof Induction Motor Efficiencies
Nominal Efficiencies for Open Drip-Proof Induction Motors Rated 600 V or Less. This table defines the nominal efficiencies for open drip-proof induction motors that ar rate at 600 V or less.
Brushless DC Motor Applications
Whether it is referred to as a brushless DC motor, ECM or BLDC motor, today’s engineers are familiar with the multitude of advantages this type of motor offers over traditional brush-type motors. However, mechanical engineers may be less aware of the significant advances made possible by BLDC motors.
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