BRAND NEW!!!

5 HP  -  1PH  

  56 Frame or 143T / 145T FRAME ( Motor will fit either Bolt pattern) 

3450 RPM  -  21 AMP  -  7/8" SHAFT  Diameter

ELECTRIC MOTOR FOR BELT DRIVEN AIR COMPRESSORS

Capacitor Start & Capacitor Run Compressor duty motor

Full Manufacturers Warranty + FREE SHIPPING to lower 48 states

Same Day shipping if ordered 3PM EST Mon-Fri


If you need help choosing the right motor to replace your old one. Please view our 5HP technical guide below.

Technical Info:

Horsepower: 5HP.

Voltage:  208-230V ( Motor NOT rated for any voltage less than 208 VAC)

Amperage: 21.0 fl amps at 230v    /  22.0 fl amps at 208v

Rotation: CCW   Counter Clockwise Rotation

RPM: 3450 

Torque: 7.50 lb.ft

Frequency: 60hz

Shaft Diameter: 7/8" Keyed shaft

Shaft Length:  2.25"

Efficiency:  80%

Service Factor: 1.0

Enclosure: ODP  Open Drip Proof  (internally fan cooled)

Phase: One / Single Phase.  2 pole

5HP Motor Technical Guide: For all you "Do it Yourselfers out there" its vitally important that you match up the specs on your old motor, with the new motor you're purchasing. All 5HP motors are NOT created equal. A 5HP 56frame motor is drastically different than a 5HP 184T frame motor. Below is a quick check list for you to reference when sizing up the right motor for your application. All of the information you need to know can be found right on your electric motors nameplate/sticker. usually found on the side of the motor.

1: Amperage ..   This is your electric motors TRUE power rating. HP ratings have been made suspect over the years by large retailers who like to use "peak HP" or " SPL " in their terminology. The Motor's amp rating does not lie. Please make sure your FL amp (FULL LOAD) rating on the motor you're replacing is within 10% of the FL Amp rating of the motor you intend to buy.
Example 1: If your current motor says  21 FL amps at 230VAC. Then you would be safe replacing your motor with a 19FL amp thru 23 FL amp electric motor 230volt.
Example 2: If your current motor says 21 FL amps at 230VAC. Then you replace it with a 15 FL amp motor. That 15A motor is NOT strong enough for the task, and will eventually fail.

2: Frame Size .. The frame not only constitutes the bolt pattern, it also depicts the overall size and torque. The larger the frame, the stronger the motor. If your current motor you're replacing shows 56, 143T or 145T on the nameplate. Its extremely important that you replace it with that frame size.  Improperly sized motors will inevitably result in motor failures.
Example: If your existing motor says 5HP 184T frame, and you elect to replace it with a 5HP 56frame.. That would be similar to using a 4 cylinder engine to power a school bus.  This is why its important that your new motors frame size matches the old motor you're replacing. This will ensure your replacement motor will work for years to come.

3: Phase and Voltage .. If your machine requires a 230volt electric motor on single phase power. You would want to incorporate a 1-phase 230vac electric motor for your application.

4: RPM .. Matching up the RPM is quite important. The wrong speed can damage your pump.  The RPM does not have to match exactly, but you do need to be the neighborhood.
Example: 3510rpm, 3550, 3450 are all the same. They all fall under the umbrella of whats known as 3600RPM motors.

5: Shaft Diameter ..  With a tape measure. Measure the outside diameter on your electric motors shaft. The most common 5HP compressor duty motor shaft diameters are 5/8" on 56 frame motors                               7/8" on 56HZ  /  143T  /  145T frame motors                            1 1/8" on 182T or 184T frame motors.
By matching up the proper shaft diameter, you will be able to reuse the original motor pulley that came on your machine.

If you have any questions in regards to sizing up the proper motor. Please feel free to contact us.