Standard Motor Catalog

Section TR Technical Reference Guide

Table 47: Quick Reference of Industrial Applications for 3 Phase Induction Motors

Requirements

Environment (Subject to Engineering Review)

Locked Rotor Torque

Break Down Torque % Slip

NEMA Design

Starting Current

Applications

Standards GE Types

K, KS XSD Ultra ® KS-XSD Ultra ® 841

Normal starting torque, constant load (single) speed, such as: • Fans • Blowers • Pumps • Machined Tools • Unloaded compressors • Some conveyors • Metal cutting machine tools • Misc. machinery

NEMA MG1

High to Medium

A

Normal

Normal

Max 5%

IEEE-841

DIV 1 UL/CSA K, KS - XP DIV 2 UL/CSA K, KS Zone 1 UL/CSA K, KS - XP

Hazardous

UL/CSA ATEX, CE MARK

Zone 2

K, KS

B

Low Normal

Normal

Max 5%

KS-XSD Ultra ®

Marine

IEEE45

KG, KGS, XSD Ultra ® KGS

Constant load (single) speed

Non Hazardous

NEMA MG1

DIV 1 UL/CSA KG, KGS - XP DIV 2 UL/CSA KG, KGS Zone 1 UL/CSA KG, KGS - XP

High inertia start such as: • Large centrifugal blowers • Flywheels • Crusher Drums

C

Low

High

Normal

Max 5%

Hazardous

UL/CSA ATEX, CE MARK

Zone 2

KG, KGS

• Piston Pumps • Compressors • Conveyors

KGS-XSD Ultra ®

Marine

IEEE45

Non Hazardous

NEMA MG1

KR

Very high inertia and loaded starts. Choice of slip to match load. • Punch presses • Shears • Forming machine tools

DIV 1 UL/CSA KR XP

5-8%

DIV 2 UL/CSA

KR

Zone 1 UL/CSA KR XP

D

Low

Very High

-

Hazardous

• Cranes • Hoists • Elevators • Oil well pumping jacks

8-13%

UL/CSA ATEX, CE MARK

Zone 2

KR

TECHNICAL REFERENCE GUIDE

KAF/XSD Ultra ® KS-XSD Ultra ® 841

Constant torque applications, such as: • Agitators

NEMA MG1

Non Hazardous

IEEE-841

• Centrifuges • Conveyors • Extruders

DIV 1 UL/CSA

KAF

• Feeders • Grinders

Application Driven

Not Applicable

Not Applicable

Application Driven

DIV 2 UL/CSA

KAF

-

• Kilns • Mills • Mixers • Presses • Saws • Test Stands • Tools

Zone 1 UL/CSA

KAF

Hazardous*

UL/CSA ATEX, CE MARK NEMA MG1 API 661 NEMA MG1 API 541 & API 547

Zone 2

KAF

High to Medium High to Medium

##Non Hazardous Suitable for DIV 2

KS-XSD Ultra ® 661

Cooling Tower Fans

A or B

Normal

Normal

Max 5%

Reciprocating Compressors (High Speed)

A or B

Normal

Normal

Max 5%

-

500 Frame

* Refer to Wolong America for specific suitability requirements such as Auto Ignition Temperature, Gas Groups and Rating Details. ## Product offering limitation. Refer to Wolong America for more information. K - NEMA designs A and B KS - NEMA design A and B Energy Saver KAF - Adjustable frequency KG - NEMA design C KGS - NEMA design C Energy Saver KR - NEMA design D, 5 to 8% slip or 8 to 13% slip

TR.50

Data subject to change without notice. 03/24 • www.wolongamerica.com