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NEMA Motors GRC2502F-TC

250 HP, 3600 RPM, 3 Phase, 575V, 449TSC Rigid/C-Flange, TEFC NEMA Premium





NO STOCK Toronto, ON
NO STOCK Montreal, QC
NO STOCK Moncton, NB
NO STOCK Vancouver, BC
NO STOCK Winnipeg, MB
data package


Quick Specs

  • HP 250
  • RPM 3600
  • PHASE 3
  • VOLTAGE 575V
  • MOUNTING Rigid/C-Flange
  • ENCLOSURE TEFC

Product Overview

Three phase, enhanced performance cast iron, premium efficient NEMA design A and B motors.

Features a multi-mount arrangement incorporating bolt on feet* or flange mount configuration. 2, 4 and 6 pole, 1 to 250HP, ideal for numerous light and heavy duty industrial and severe applications.


Motor Features

STANDARD FEATURES
  • *Removable feet F1, F2, F0 field convertible up to and including 326T frame, F2 convertible 364T and larger
  • 1.25 Service Factor through 326T frame, 1.15 Service Factor for larger frames with 60Hz operation / 1.0 Service Factor with 50Hz operation
  • 36 Month warranty
  • Cast iron construction with C and D flange kits available
  • Cast iron fan cover standard for all frame sizes
  • Cast iron Conduit Box is 90º rotatable
  • 1045 Steel shaft through 405T, 4140 grade for 444T and larger
  • Regreasable bearings 254T frame and larger
  • Mobil Polyrex EM polyurea grease
  • CSA Certified for Class I, Division II, Groups A, B, C and D / Class I, Zone 2, Groups IIC, IIB, IIA
  • IEEE 45 Marine Duty
  • Anti-microbial (tropicalization) on stator winding
  • Surface finish:
    • 2-Part epoxy coating RAL7024 - Graphite Gray
  • Stainless steel nameplate
  • Corrosion resistant hardware
  • Ultra high strength, reusable lifting straps included with motors 254T frame and larger
OPERATING PARAMETERS
  • Continuous (S1) duty
  • Ambient temperatures up to 40ºC
  • Installation up to 1000 MASL (3300 ft.)

CONNECTION
  • Up to and including 215T Frame:
  • 9-Lead 230V parallel-wye / 460V series-wye connection
  • 3-Lead 575V wye connection
  • 254T Frame and larger:
  • 12-Lead 230V parallel-delta / 460V delta connection
  • 6-Lead 460V or 575V single voltage delta connection

INGRESS PROTECTION

The standard degree of enclosure protection is IP55 (increased IP protection is available). Both drive end and non-drive end are fitted with double lip oil seals, including a rubber shaft slinger on the drive end. Terminal box is double gasketed including nipple seals between conduit box and stator body. DE and NDE end bell fitted with sintered brass one-way drain.


INSULATION AND INVERTER RATING
  • Class F Insulation (Impregnation resin, magnet wire and insulation materials are Class H)
  • Designed to Class B temperature rise
  • Vacuum Impregnated
  • Inverter Rated 15:1 Constant Torque, 30:1 Variable Torque (1.0 S.F. on VFD Power)
  • Exceeds NEMA MG 1 Part 31.4.4.2


Specifications

Download Specifications
ELECTRICAL DATA
Rated Motor Output Power
250
HP
-
kW
Rated Motor Speed
3570
r/min 60Hz
-
r/min 50Hz
Rated Motor Voltage (+/-10%)
575
V/60Hz
-
V/50Hz
Rated Motor Current
212.47
A (In) @ 60Hz
-
A (In) @ 50Hz
Phase
3
Ø
Locked Rotor Current @ High Voltage
1737.6
A (In) @ 60Hz
Fl Current @ 208V
-
A (In) @ 60Hz
Service Factor
1.15
@ 60Hz
1
@ 50Hz
KVA Code
K
60Hz
-
50Hz
Nominal Efficiency
95.8
% @ 60Hz
Nominal Power Factor
0.9
cosφ @ 60Hz
Leads (Qty, Size)
6
2
Connection
D
Coil Resistance
0.011
Ω
Start Capacitor
-
μF/V
Run Capacitor
-
μF/V
VFD DUTY (S.F. 1.0)
RATIO
Hz
Variable Torque
30:1
2 - 60
Constant Torque
15:1
4 - 60
FULL LOAD TEMPERATURE RISE
Full Load Temperature Rise
75.3
ºC @ 60Hz
-
ºC @ 50Hz
GENERAL DATA
Frame Size
449TSC
Enclosure
TEFC
Mounting
Rigid/C-Flange
Approximate Weight (lbs.)
2077 lbs.
Casing Material / Fan Cover
Cast Iron
Cast Iron
Shaft Material
-
NEMA Design
A
Degree of Protection (IP)
55
Insulation Class / Temp Rise (60Hz)
F
B
Tropicalization
YES
Duty
Cont. / S1
Conduit Box Location
1-NPT 3"
Feet Removable / Double Drilled
NO
YES
Paintwork
7024
Graphite Gray
MECHANICAL DATA
Bearing DE Side
6316 C3
Bearing ODE Side
6316 C3
Grease Type
Mobil Polyrex EM
Compensation Ring (wavy washer)
NDE
Moment of Inertia (lb-ft2)
38.67
Sound Pressure @ 3 FT dBA
96.1
SITE CONDITIONS
Ambient Temperature (℃)
40
Meters Above Sea Level (MASL)
1000
HAZARDOUS LOCATIONS
CSA Certified
CSA Certified
Temperature Code
-
-

Nameplate

Download Nameplate
NAMEPLATE DATA
60Hz
50Hz
Horse Power
250
250
RPM
3570
-
Voltage
575
-
Full Load Amps
212.47
-
Service Factor
1.15
1
KVA Code
K
-
Full Load Amps (208V)
-
-
Nominal Efficiency
95.8
-
Nominal Power Factor
0.9
-
Design
A
Frame
449TSC
Enclosure Type
TEFC
IP Rating
55
Duty
Cont. / S1
Insulation Class
F
Ambient Rating
40°C
Drive End Bearing
6316 C3
Opposite Drive End Bearing
6316 C3
Weight (lbs)
2077
NAMEPLATE LAYOUT

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VFD DUTY (S.F. 1.0)
RATIO
Hz*
Variable Torque
30:1
2 - 60
Constant Torque
15:1
4 - 60
*For max speed please contact Techtop Canada
HAZARDOUS LOCATIONS
CSA CERTIFIED
Class / Division
Class I, Division II
Groups
A, B, C & D

Performance

Download Performance Data
PERFORMANCE LOAD VALUES, HIGH VOLTAGE, 60Hz
TYPICAL PERFORMANCE - NOT GUARANTEED VALUES
TORQUE VALUES
TORQUE (lb-ft)
TORQUE (% FULL LOAD)
PERFORMANCE VALUES
Locked Rotor Torque
1040.8
283
Start Configuration
DOL
Pull-Up Torque
529.6
144
Starting Current (A)
1737.60
Breakdown Torque
1099.7
299
No-Load Current (A)
18.1
Full Load Torque
367.8
100
No-Load Power Factor


% OF RATED LOAD
25
50
75
100
125
S.F.
Line Amperes (A)
28.1
45.4
64.5
84.9
106.3
97.6
Efficiency (%)
93.3
93.3
95.8
95.6
95.1
95.1
Speed (r/min)
3593
3587
3580
3573
3564
3564
Power Factor (cosφ)
0.78
0.89
0.92
0.93
0.92
0.92
Input Power(kW)
49.99
97.64
145.99
195.13
245.13
245.13

Drawings & Wiring

3D CAD DRAWING 2D CAD DRAWING
Download PDF Drawing
DRAWING NUMBER
DIMENSIONS
MOUNTING
CASING MATERIAL
GR3-CI-TF-447(9)TSC-CFC
Inches
Rigid/C-Flange
Cast Iron





Download Wiring Diagram
DRAWING NUMBER
CONNECTION
NUMBER OF LEADS
THERMAL PROTECTION
NEMA-3-6-D
D
6
-

Parts & Accessories


COMPONENTS cast iron
Components
Part #
Description
Price
Stock
Qty
Cooling Fan
PRF-IE2-250-280-2
--
--
--
Conduit Box Kit
CB440
TECHTOP CAST IRON NEMA CONDUIT BOX 440T FRAME
--
Steel Fan Cover
SFC440
TECHTOP STEEL FAN COVER FOR CAST IRON MOTORS (NEMA 440T / IEC 280)
--
Cast Iron Fan Cover
CFC440
TECHTOP CAST IRON FAN COVER FOR CAST IRON MOTORS (NEMA 440T / IEC 280)
--
ODE Plate
CEP440-2
TECHTOP CAST IRON END PLATE FOR CAST IRON MOTORS (NEMA 440T / IEC 280)
--
DE Oil Seal
80*100*10
--
--
--
ODE Oil Seal
80*100*10
--
--
--
Shaft Slinger
78*170*10
--
--
--
Brass Drain
M10DRAIN
M10 THREADED BRASS SINTERED DRAIN
--
Brass Drain Plastic Plug
M10PLUG
M10 THREADED PLASTIC DRAIN PLUG
--
DE Bearing Retainer
CBRO6316/NU316
Techtop Cast Iron Bearing Retainer Outer NO Wavy Washer End (400T/440TS DE/280)
--
ODE Bearing Retainer
CBRO6316/NU316-WW
Techtop Cast Iron Bearing Retainer Outer Wavy Washer End (400T DE, 440TS / 280)
--
Wavy Washer
WW6316
WAVY (SPRING) WASHER FOR BEARING SIZE 6316
--


ACCESSORIES cast iron
Accessories
Part #
Description
Price
Stock
Qty
C-Flange Kit
CFKG-440T-2P
440TC CAST IRON C-FLANGE KIT 2P GR LINE
--
D-Flange Kit
DFK-440T-2
--
--
--
Steel Drip Cover
SDC440
TECHTOP STEEL DRIP COVER FOR STEEL/CAST IRON FAN COVER (NEMA 440T / IEC 280)
--
Slide Base
B449T
449T DOUBLE ADJUST MOTOR SLIDE BASE
--



Models & Pricing