Electric Motor Base Dimensions

Heavy duty motor base style c2hd nema frame sizes 254 449 double adjusting heavy duty bases or standard rails are recommended for motors between 150 hp 1800 rpm and 250 hp 1800 rpm on non severe applications.

Electric motor base dimensions.

Standardized motor dimensions are established by the national electrical manufacturers association nema are tabulated below and apply to all base mounted motors listed herein that carry a nema frame designation. Electrical electrical units amps and electrical wiring wire gauge and awg electrical formulas and motors. Bases are design to provide adequate travel are fully adjustable by the use of a single adjusting screw and have elongated mounting holes in the base plate. Electrical induction motors synchronous speed the speed at which an induction motor operates depends on the input power.

All dimensions are approxi mate not to be used for construction purposes. T h e s e d i m en s i o n s a r e s p e c i f i c t o e a c h m anu f a c t u r e r. Nema shaft u k ey r dim n s 3 8 1 2 5 8 7 8 1 1 8 1 3 8 1 5 8 1 7 8 2 1 8 2 3 8 2 1 2 2 7 8 3 3 8 3 7 8 21 64 29 64 33. The following specifications documents and dimension charts are available as acrobat pdf files.

Dimensions drip proof totally enclosed fan cooled and explosion proof. We would like to show you a description here but the site won t allow us. Electric motor calculator calculate amps hp and kva. For 56h combination foot refer to diagram 1.

The following are dimensional size charts for standard electric motor nema standard frames and configuration. See motor mount selection chart type 2 b standard base. Nema motor dimensions reference chart a ft e r l e t t e r i n d i c a t e s t h e n u m b e r i s a n app r o x i m a te v a l ue. Drawing shows rigid base.

Electric motor efficiency calculate electric motor efficiency. Foot mounting dimensions listed are identical for either rigid or resilient base mounting. Bases for constant speed applications keep your motor in a fixed position while operating. Bases for variable speed applications allow movement while operating to compensate for vibration and varying loads.