ACS 5 HP Compressor Duty Motor, 56 Frame, 3450 RPM, 208-230V, 7/8 in. Shaft
ACS single-phase compressor duty motor, model 56S34D5MA, rated a true 5 HP at 3450 RPM on 208-230V in a 56HZ frame with a 7/8 in. shaft. Unlike the SPL-rated motors in this frame size, the nameplate here reads a straight 5 HP with no special designation, and the 22 amp full load draw backs that up.
Key specifications
- Horsepower: 5 HP, a full rating with no SPL designation
- Speed: 3450 RPM, 2 pole
- Phase and frequency: single phase, 60 Hz
- Frame: 56HZ, rigid foot base
- Voltage: 208-230V
- Full load amps: 22 A
- Service factor: 1.0
- Enclosure: ODP, open drip-proof
- Insulation class: F
- NEMA code letter: G
- Duty: continuous, 40 C ambient
- Shaft: 7/8 in. diameter, keyed
- Bearings: 6205RZ drive end, 6203RZ opposite drive end
- Protection: thermally protected
- Rotation: factory set CCW, reversible by switching the red and black wires at either voltage
- Weight: 46 lb
- Model number: 56S34D5MA, EMZ Industrial Inc., Houston TX. Certification: CSA file 260550
Check the shaft diameter
This motor has a 7/8 in. shaft, not the 5/8 in. shaft used on the smaller 56 frame compressor motors. Your existing sheave will not transfer across from a 5/8 in. motor. Confirm the bore on your pulley, or order a matching sheave at the same time.
Typical applications
Replacement motor for 5 HP belt-driven single-stage and two-stage reciprocating air compressors running 3450 RPM on 208-230V single-phase power. The 22 amp full load draw means the branch circuit and starter need sizing for it. Note the 1.0 service factor, so match the motor to the actual load rather than relying on overload margin.
Supplied by AirComParts as part number J5038. The AirComParts price list shows this part as 56S34D5MB while the motor nameplate reads 56S34D5MA. The specifications above are taken from the MA nameplate; confirm with us if you need the later revision specifically. Shaft extension length and keyway dimensions are not published by the manufacturer.
NOTE: Actual product may be different from pictured!
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