Standard Motor Catalog

Section VP Vertical Pump Motors

XSD Ultra 841 Vertical C-Face NT TEFC—Extra Severe Duty (IP56) Standard Features

NEMA Frame Size

143 - 365


2, 4 & 6

2-pole - 1 - 75 4-pole - 1 - 75 6-pole - 1.5 - 50

Horsepower Range



2-pole 143 - 286 fr - T 284 - 365 fr - TS 4 & 6-pole 4P: 143 - 365, 6P: 182 - 326 - T

Shaft Extension

UL - Component and Insulation System Recognition CSA - Certification and Efficiency Verification

Agency Approvals

Industry Specifications

IEEE 841, IEEE 45 Marine Duty

Warranty (months)

60 months from date of installation or 66 months from date of manufacture, whichever occurs first

Max Ambient & Altitude

40˚C & 3300 feet

Insulation Class


Winding Temperature Rise

80C @1.0SF Sine wave (with some high end exceptions) 1.15 Sine wave (with some high end exceptions)

Service Factor

Per IEEE 841 - 2-pole - 50C 4 & 6-pole - 45C

Bearing Housing Rise

Division 2 Temperature Code

CSA Certified Div 2, T3 (200 C) (with some high end exceptions)

NEMA Design


Insulation System Inverter Capability

Non-Hygroscopic, Anti-Fungus, Polyester Resin, Trickle Treated, Tested to Exceed NEMA MG 1 Part 31

Variable Torque INF:1


Per IEEE 841 (NEMA Premium 1-300 HP)

Frame Material

Cast iron

Frame/Conduit Box Gasket Frame/End Shield Seal

Neoprene Rubber


End Shield Material Conduit Box Material

Cast Iron

Cast Iron or Fabricated Steel Plate

H O R IVZEORNT IACLA LN EMMOAT OMROST O R S Conduit Box Cover Gasket Conduit Box Rotation

Neoprene Rubber

90 degree increments

Conduit Box Hole Thread


Shaft Runout

Per IEEE 841

Fan Cover Material

Cast Iron

2-pole - Bi-Directional, Non-sparking Plastic (except Uni-directional Aluminum in 449 frame) 4 & 6-pole - Bi-Directional, Non-sparking Plastic


Sound Power

90 dBA sound power (with some high end exceptions)


W6, Shaft Down with C-Face Flange

Mounting Holes



4 point cast in lugs Single Shield Ball

Bearing Type

Bearing L10 Life

Direct Coupled - 50,000 hrs per IEEE 841

Bearing Caps

Cast Iron, gasketed

Bearing Lubricant


Bearing Re-Lubrication

Grease fitting & plug. Extended through the fan cover. Includes provisions for conversion to Oil Mist Lubrication

Bearing Protection

Non-contact rotating labyrinth seal on both ends


Hex Head, Zinc Plated

Condensation Drain Balance & Vibration

Stainless Steel T-drains at the lowest point of both end shields

ISO 1940 Grade 1 Ball bearings - .040 peak in/sec

Vibration Pads

Cast in vibration pads for repeatable measurements


316 Stainless Steel Epoxy ester, RAL 1001 NEMA Routine only

Paint Tests


Data subject to change without notice. 03/24 •

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