Standard Motor Catalog

Section XS XSD Ultra NEMA Premium Extra Severe Duty Motors Adjustable Speed Motors ASD Ultra ® Standard Features

HP Range

1.5 - 300 4 and 6



230/460, 460

Agency Approvals

UL - Component and Insulation System Recognition, CSA - Motors

Altitude Ambient

3300 feet



0.040 in/sec (P) @ 60 Hz 0.055 in/sec (P) at others frequency

Bearing Housing Rise


Bearing Caps

Both ends. 143-286: ODE is gasketed, 324-449: both ends are gasketed

Aegis shaft ground ring installed inside the motor in DE bearing cap 140-449 frame. Recessed Slinger. Non-contact rotating labyrinth seal kit available Ball, roller bearing available as an option 360 frame and higher. Insulated Opposite Drive End Bearing 444-449 Frame.

Bearing Protection

Bearing Type Centered Core Conduit Box

Allows F1-F2 field conversion

Gasketed and rotatable, Fabricated Steel above 250 Amps, All other: Cast iron


143-182: Non-Vent, 184-449: Totally Enclosed Fan Cooled, 364-449: Blower Cooled also available.

DE Mounting

143-286: NEMA C-face mount


Stainless Steel T-drains

End Shield

Cast Iron—C-face std through 286 frame


Non-Sparking Plastic or Bronze

Fan Cover Fasteners

Cast Iron

SAE, Grade 5 +/- 1.5 degrees 0.005 inches

Foot Draft Angle Foot Flatness Frame Material

Cast Iron 143-449

Frame Size Frequency

60 Hz

Grease Ground


Ground lug in Conduit Box

Insulation Class Insulation System Inverter Capabilities


GEGUARD 2400 Non-Hygroscopic, AntiFungus, 2400Volt @ .1microsecond rise time. Exceeds NEMA MG1-31

Variable Torque inf:1, Constant Torque inf:1, Constant Horsepower to 1.5 times base speed. Belted - 26,280 hrs; Direct Coupled -130,000 hrs 4 Pole and above, 65,000 hrs 2 Pole

Bearing L10 Life

Lifting Means

4 Lugs cast into frame


F1 as Standard and Modifiable to F2

Mounting Holes

1 per foot (324 frame), 2 per foot (all other frames)


Stainless Steel includes Weight, Vibration Limit, Service Factor, Speed Range, Constant Torque, and Constant HP

NEMA Design



Buff, Epoxy ester


Both ends, extended through the fan cover


Cast Aluminum

Service Factor

1.0 SF for PWM operation

Shaft TIR

Meets IEEE 841, .001 in. for shaft diameter 1.625 in and smaller, .0015 in for shaft diameter greater than 1.625 in.

Tach Mounting Temperature Rise

ODE C-face provision for tach mounting. 143-184: 4.5” rabbet, 213-449: 8.5” rabbet

80°C by resistance TEBC & TENV: 105°C by resistance TEFC NEMA Routine Report including 100% CIV tested. 140-280, 2 NC Thermostats; 320-449, 3 NC Thermostats


Thermal Protection

Time Rating


Vibration Pads

Cast in vibration pads for repeatable measurements

60 months from date of installation or 66 months from date of manufacture, whichever occurs first Extended warranty from Electro Static Technology guarantees against bearing failure due to fluting damage for the expected (L10) life of the original bearings.



Data subject to change without notice. 02/23 •

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