Standard Motor Catalog

Section MV High Power Motors

449 Frame Ultra TEFC Severe Duty Medium Voltage Standard Features

HP Range

125 - 350

Poles

2, 4, 6

Voltage Altitude Ambient

2300/4000

3300 ft

40°C

Balance/Vibration

.08 IPS

Bearing Caps

Both Ends

Bearing Protection

IP55; Shaft slinger both ends

Bearing Type Conduit Box

Single Shield Ball

Fabricated Steel; Gasketed and rotatable in 90 degree increments Stainless Steel T-drains in lowest section of both endshields

Drains

Efficiency Enclosure End Shield

Premium

TEFC

Cast Iron

Fan

Bi-directional Non-Sparking Plastic, Unidirectional Aluminum on 150HP - 250HP 2 poles CCW viewed from ODE

Fan Cover Fasteners

Cast Iron

SAE Grade 5

Frame Material

Cast Iron

Frame Size Frequency

449

60 Hz

Ground

Ground in conduit box and NEMA Type ground pad on frame

Hazardous Locations Insulation Class Insulation System Inverter Capabilities

Self Declared Class I Division 2 Groups A, B, C, D

Class F

Epoxy VPI

Consult Factory

L10 Bearing Life

Direct Coupled: 130,000 hrs 4 and 6 pole; 65,000 hrs 2 pole

Leads

Permanently numbered, Non-wicking

ABOVE NEMA AC HORIZONTAL MOTORS

Lifting Means Lubrication

Two (2) cast in lifting lugs

Polyurea Grease

Mounting

Foot mounted F1 only

Mounting Holes

Dual drilled for 447/449 mounting

Nameplate

316 Stainless Steel

NEMA Design

B (250HP 2 pole NEMA A)

Paint

Epoxyester Buff

Relubrication

Grease fitting and plug; extended through the fan cover

Rotor

Cast Aluminum

Service Factor Shaft Material Space Heater

1.15 (unless otherwise noted on pricing pages)

AISI 1045

115V thermostatically controlled space heater, leads to accessory box 100 Ohm Platinum stator winding RTD's, leads to accessory box

Stator Temp Device Temperature Rise

80°C @ 1.0 SF (unless otherwise noted on pricing pages)

Tests

NEMA Routine only

Time Rating

Continuous

Vibration Pads

Cast in vibration pads for repeatable measurements

Warranty

36 months from date of installation or 42 months from date of manufacture, whichever occurs first

MV.3

Data subject to change without notice. 10/24 • www.wolongamerica.com