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NEMA Motors GRA0252F-01

25.00 HP, 3600 RPM, 3 Phase, 575V, 284TS Rigid, TEFC

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Quick Specs

  • HP 25.00
  • RPM 3600
  • PHASE 3
  • VOLTAGE 575V
  • MOUNTING Rigid
  • ENCLOSURE TEFC

Product Overview

Three phase, enhanced performance cast aluminum, premium efficient NEMA design B motors.

Features a multi-mount arrangement incorporating bolt on feet or flange mount configuration. 2, 4 and 6 pole, 1 to 15HP, ideal for when “lighter” weight is advantageous.


Motor Features

STANDARD FEATURES
  • Removable feet F1, F2, F0 field convertible
  • 1.25 Service Factor with 60Hz operation / 1.0 Service Factor with 50Hz operation
  • 36 Month warranty
  • Conduit Box is 90º rotatable
  • Cast aluminum construction with cast aluminum c-flange kits available
  • Compact lightweight design
  • CSA Certified for Class I, Division II, Groups A, B, C and D / Class I, Zone 2, Groups IIC, IIB, IIA
  • Anti-microbial (tropicalization) on stator winding
  • Shielded bearings
  • 1045 Steel shaft
  • Surface finish:
    • Alkyd enamel RAL7024 - Graphite Gray
    • Black oxide surface treatment for increased corrosion resistance
  • Stainless steel nameplate
  • Corrosion resistant hardware
OPERATING PARAMETERS
  • Continuous (S1) duty
  • Ambient temperatures up to 40ºC
  • Installation up to 1000 MASL (3300 ft.)

CONNECTION
  • 9-Lead 230V parallel-wye / 460V series-wye connection
  • 3-Lead 575V wye 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. 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
25
HP
-
kW
Rated Motor Speed
3550
r/min 60Hz
-
r/min 50Hz
Rated Motor Voltage (+/-10%)
575
V/60Hz
-
V/50Hz
Rated Motor Current
22.80
A (In) @ 60Hz
-
A (In) @ 50Hz
Phase
3
Ø
Locked Rotor Current
283.1704
xFLA (Il/In)
Fl Current @ 208V
-
A (In) @ 60Hz
Service Factor
1.25
@ 60Hz
-
@ 50Hz
KVA Code
J
60Hz
-
50Hz
Nominal Efficiency
91.7
% @ 60Hz
Nominal Power Factor
0.89
cosφ @ 60Hz
Leads (Qty, Size)
6
Connection
D
Coil Resistance
-
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
-
ºC @ 60Hz
-
ºC @ 50Hz
GENERAL DATA
Frame Size
284TS
Enclosure
TEFC
Mounting
Rigid
Approximate Weight (lbs.)
-
Casing Material / Fan Cover
Cast Aluminum
Steel
Shaft Material
1045
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 1-1/2"
Feet Removable / Double Drilled
YES
YES
Paintwork
7024
Graphite Gray
MECHANICAL DATA
Bearing DE Side
6311ZZ
Bearing ODE Side
6211ZZ
Grease Type
Mobil Polyrex EM
Compensation Ring (wavy washer)
NDE
Moment of Inertia (lb-ft2)
-
Sound Pressure @ 3 FT dBA
-
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
25
25
RPM
3550
-
Voltage
575
-
Full Load Amps
22.80
-
Service Factor
1.25
-
KVA Code
J
-
Full Load Amps (208V)
-
-
Nominal Efficiency
91.7
-
Nominal Power Factor
0.89
-
Design
A
Frame
284TS
Enclosure Type
TEFC
IP Rating
55
Duty
Cont. / S1
Insulation Class
F
Ambient Rating
40
Drive End Bearing
6311ZZ
Opposite Drive End Bearing
6211ZZ
Weight (lbs)
-
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
I
II
Groups
A, B, C and 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
127.930007279
346
Start Configuration
DOL
Pull-Up Torque
73.578241181
199
Starting Current (A)
283.17048
Breakdown Torque
157.509199714
426
No-Load Current (A)
9.872
Full Load Torque
36.973990543
100
No-Load Power Factor
-


% OF RATED LOAD
25
50
75
100
125
S.F.
Line Amperes (A)
10.968
14.688
18.976
23.736
28.888
28.888
Efficiency (%)
-
89.54
91.42
91.96
91.91
91.91
Speed (r/min)
3591.4
3582.8
3573.7
3564.1
3554.1
3554.1
Power Factor (cosφ)
0.51
0.71
0.81
0.86
0.88
0.88
Input Power(kW)
5.6
10.39
15.26
20.23
25.3
25.3

Drawings & Wiring

3D CAD DRAWING 2D CAD DRAWING
Download PDF Drawing
DRAWING NUMBER
DIMENSIONS
MOUNTING
CASING MATERIAL
GR3-AL-TF-280T-01
Inches
Rigid
Cast Aluminum





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

Parts & Accessories

There are currently no parts or accessories available for this model.