NEMA 56 frame three-phase general purpose AC motors have a standard 5/8″ diameter, 1-7/8″ length shaft whose center is 3-1/2″ above the base mounting surface. Variations to the frame’s standard dimensions and design are indicated by a letter designation following the frame number, such as 56HZ or 56C. The letter “H” indicates that the frame has a set of mounting holes at 3″ and 5″, “Z” indicates that the frame has a nonstandard shaft, and “C” indicates that the motor can be face mounted. These frame standards and letter designations are defined by the National Electrical Manufacturers Association (NEMA).
HP
2
Phase
Three
Voltage
230V AC; 460V AC
Full Load Amps
2.6/5.2/5.6 A
Frame
56
Nameplate RPM
3,450
Hz
60 Hz
Motor Service Factor
1.15
Insulation Class
F
NEMA Design
B
Motor Enclosure Design
Open Drip Proof
Motor Mounting Type
Rigid Base
Inverter Rated
Yes
Motor Frame Material
Steel
Shaft Dia.
5/8 in
Shaft Length
1-7/8 in
Overall Length
12-1/16 in
Nominal Efficiency
85.5 %
Standards
CURUS; EEV; RoHS Compliant
Country of Origin
United States
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