Motor Spec Sheet: What It Is, How to Read It, and Why It Matters
When you're choosing or replacing an industrial electric motor, the most important document to review is the motor spec sheet. This essential guide includes all the technical specifications needed to select, install, or troubleshoot a motor—whether for new machinery or retrofit applications.
At Industrial Gearbox Supply, we help you understand every line of your motor specification sheet so you can choose the right motor with confidence.
What Is a Motor Spec Sheet?
A motor spec sheet (short for motor specification sheet) is a detailed technical document that outlines an electric motor's performance ratings, dimensions, and electrical data. It ensures you're selecting a motor that will operate safely, efficiently, and reliably in your specific application.
Why Is a Motor Spec Sheet Important?
Understanding your motor spec sheet helps you:
Select the right motor for your application
Prevent system failures due to misapplication
Ensure compliance with voltage and load requirements
Reduce energy costs with higher efficiency motors
Simplify motor replacements and cross-referencing
Whether you're working with HVAC motors, gearmotors, pump motors, or conveyor drives, accurate specs are the foundation of a smooth-running system.
Key Specs Found on a Motor Spec Sheet
Here are the most common and critical specs found on a typical motor specification sheet:
1. Motor Model Number
The alphanumeric code that identifies the motor series and configuration.
2. Horsepower (HP)
Indicates the motor’s power output. A key factor in load compatibility.
3. Voltage
Shows the motor’s operating voltage range (e.g., 230V, 460V, 575V, or dual-voltage).
4. Full Load Amps (FLA)
Lists the current draw when the motor operates at full rated load.
5. RPM (Speed)
Indicates revolutions per minute, often 3600, 1800, 1200, or 900 RPM in 60 Hz regions.
6. Frequency
Typically 60 Hz (North America) or 50 Hz (international). Be sure to match this with your electrical system.
7. Frame Size
Refers to NEMA motor frame sizes (e.g., 56, 145T, 184TC, etc.). Determines physical dimensions and mounting footprint.
8. Enclosure Type
TEFC (Totally Enclosed Fan Cooled), ODP (Open Drip Proof), or Explosion Proof, based on your environment.
9. Efficiency Rating
A percentage showing how much electrical energy is converted to mechanical output. Look for Premium Efficiency (IE3) motors when energy savings matter.
10. Service Factor
Tells you how much overload the motor can handle (e.g., a 1.15 SF motor can handle 15% more than rated HP temporarily).
How to Read a Motor Spec Sheet (Example)
Here’s a sample motor spec sheet breakdown:
| Specification | Value |
|---|---|
| Horsepower | 10 HP |
| Voltage | 230/460V |
| Full Load Amps | 27.0 / 13.5 A |
| RPM | 1760 |
| Frame | 215T |
| Enclosure | TEFC |
| Efficiency | 92.4% |
| Service Factor | 1.15 |
This motor would be ideal for general industrial applications needing reliable performance, energy savings, and moderate overload capacity.
Where to Find Motor Specification Sheets
You can typically find a motor spec sheet:
On the motor nameplate
In the manufacturer’s technical documentation
On the distributor’s product page (e.g., ABB, WEG, Leeson, Baldor)
By contacting Industrial Gearbox Supply
Need help finding a spec sheet? We’re here to assist—just provide your model number or motor photo.
Motor Spec Sheets for All Major Brands
We provide motor specification sheets and support for motors from leading manufacturers:
ABB Motors
Baldor Electric
WEG Electric
Leeson
Marathon
Siemens
And more
Whether you're looking for a direct replacement or a more efficient upgrade, we can help you match or cross-reference your motor using its spec sheet.
Get Expert Help With Motor Spec Sheets
At Industrial Gearbox Supply, we’re not just here to sell motors—we help you make the right decision the first time. If you're unsure about a motor replacement, want to verify compatibility, or need a spec sheet for your maintenance records, reach out to our expert team today.
📞 Call: 1-877-465-9108
📍 Visit Us: 3590 Scheele Dr, Jackson, MI 49202
📧 Email: sales@industrialgearboxsupply.com
🌐 Website: IndustrialGearboxSupply.com
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