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Page 44 of 45                                

                                                                  Product Information Packet: ECP844256T-4 - 250HP,1200RPM,3PH,60HZ,449T,TEFC,FOOT,

MN416

Installation & Maintenance   3

Table 1  Service Conditions

Severity

 of Service

Ambient T

emperature 

Maximum

Atmospheric 

Contamination

Type of Bearing

Standard

40

°

 C

Clean, Little Corrosion

Deep Groove Ball Bearing

Severe

50

°

 C

Moderate dirt, Corrosion

Ball Thrust, Roller

Extreme

>50

°

 C* or  Class H Insulation

Severe dirt, Abrasive dust, Corrosion

All Bearings

Low T

emperature

<-30

°

 C **

*

Special high temperature grease is recommended.   **  Special low temperature grease is recommended.

Table

 2 Lubrication Frequency (Ball Bearings)

NEMA / (IEC) Frame Size

Rated Speed ‐ RPM

10000

6000

3600

1800

1200

900

Up to 210 incl. (132)

**

2700 Hrs.

5500 Hrs.

12000 Hrs.

18000 Hrs.

22000 Hrs.

Over 210 to 280 incl. (180)

**

3600 Hrs.

9500 Hrs.

15000 Hrs.

18000 Hrs.

Over 280 to 360 incl. (225)

**

* 2200 Hrs.

7400 Hrs.

12000 Hrs.

15000 Hrs.

Over 360 to 5000 incl. (300)

**

*2200 Hrs.

3500 Hrs.

7400 Hrs.

10500 Hrs.

Relubrication intervals are for ball bearings.  For vertically mounted motors and roller bearings, divide the relubrication i

nterval by 2.

** 

For motors operating at speeds greater than 3600 RPM, contact Baldor for relubrication recommendations.

Table

 3  Lubrication Interval Multiplier

Severity

 of Service

Multiplier

Standard

1.0

Severe

0.5

Extreme

0.1

Low T

emperature

1.0

Table

 4  Amount of Grease to Add

Frame

 Size NEMA (IEC)

Bearing Description (Largest bearing in each frame size)

Bearing

OD

D mm

Width

B mm

W

eight of

grease to add

ounce (gram)

V

olume of grease 

to add

inches

3

teaspoon

Up to 210 incl. (132)

6307

80

21

0.30 (8.4)

0.6

2.0

Over 210 to 280 incl. (180)

631
1

120

29

0.61 (17.4)

1.2

3.9

Over 280 to 360 incl. (200)

6313

140

33

0.81 (23.1)

1.5

5.2

Over 360 to 5000 incl. (300)

NU322

240

50

2.12 (60.0)

4.1

13.4

W

eight in grams = 0.005 DB

Summary of Contents for BALDOR RELIANCER ECP844256T-4

Page 1: ...t Information Packet ECP844256T 4 250HP 1200RPM 3PH 60HZ 449T TEFC FOOT Copyright All product information within this document is subject to Baldor Electric Company copyright protection unless otherwise noted ...

Page 2: ...n PS Insulation F Eff Date 05 01 2012 Leads 3 1 0 02 per group Literature Elec Diagram Replaced By Nameplate 000613007ET CAT NO ECP844256T 4 SPEC NO P44G3758 HP 250 AMPS 287 VOLTS 460 DESIGN B FRAME SIZE 449T RPM 1190 HZ 60 AMB 40 SF 1 15 D E BRG 90BC03J30X PH 3 DUTY CONT INSUL CLASS F O D E BRG 90BC03J30X TYPE P ENCL TEFC CODE G D E BRG DATA 6318 POWER FACTOR 85 NEMA NOM EFFICIENCY 95 8 O D E BRG...

Page 3: ... 1200RPM 3PH 60HZ 449T TEFC FOOT Nameplate 000613007EX CAT NO ECP844256T 4 SPEC NO P44G3758 NO ROTOR BARS 71 GREASE TYPE POLYREX EM NO SLOTS 90 IEEE 85 NOISE LEVEL 75DBA 5 YEAR WARRANTY MFG DATE NL AMPS AT RATED VOLTAGE 74 9 WINDING RES 25 C 01634 OHMS SER NO ...

Page 4: ...f 45 Product Information Packet ECP844256T 4 250HP 1200RPM 3PH 60HZ 449T TEFC FOOT Nameplate 000692000UJ TCODE T2D TEMP 215 CL I DIV 2 GR ABCD CL 1 ZONE 2 GR IIAIIBIIC CL II DIV 2 GR X X X MOTOR I D NO P44G3758 ...

Page 5: ...00 1 000 EA 032625024PA 5 8 11 X 75 LONG FULL DOG PT SCKT SET 3 000 EA 004824015A GREASE POLYREX EM 1 156 LB 032018008CK HHCS 3 8 16X1L PLATED 4 000 EA 032018020FK HHCS 3 4 10X2 1 2 PLTD 4 000 EA 032018036DK HHCS 1 2 13X4 1 2 PLTD 3 000 EA 032620016LA SOCKET SET SCREW 449 3 000 EA 034017014AB LCKW 3 8 STD PLATED 4 000 EA 034180014DA KEY 1 4X1 4X1 3 4 L 1 000 EA 034530072AB P NIP 1 8X9 L GALV 1 000...

Page 6: ... 418151014G RETAIN RING 1 000 EA 423709011D WASHER 3 000 EA 423709011D WASHER 3 000 EA 702623011RA G28 AIR DEFLECTOR DRIVE END 1 000 EA 702623013R THERMAL BARRIER G28 1 000 EA 410700004A WSHR 1 000 EA 412118006A DRAIN 1 000 EA 032018004BK HHCS 5 16 18X1 2 PLATED 3 000 EA 032018006BK HHCS 5 16 18X3 4 PLATED 3 000 EA 032018020FK HHCS 3 4 10X2 1 2 PLTD 4 000 EA 032018036DK HHCS 1 2 13X4 1 2 PLTD 3 00...

Page 7: ... 000 EA 035000001A ALFTG 1 8 1610 BL 1 000 EA 067053014A GASK 440 1 000 EA 076870000B CBCST BLKT 440 1 000 EA 076871000A CBOX CVR BLKT 449 1 000 EA 406056007A TERBD 440 1 000 EA 406099000A PLUG FAN COVER 320 440 1 000 EA 415000003D T LUG 897 777 KPA25 G16 1 000 EA 415030115A G28 C BOX 415030114WCA 1 000 EA 418150003A GREASE FITTING CAP 1 000 EA 033775004EA DRSCR 6 1 4 304 S S 2 000 EA 418150003A G...

Page 8: ...f 45 Product Information Packet ECP844256T 4 250HP 1200RPM 3PH 60HZ 449T TEFC FOOT Parts List continued Part Number Description Quantity 421948051 LABEL MYLAR 1 000 EA 415039027A GASKET G28 LEAD THROAT 2 000 EA ...

Page 9: ...ARRISON W L SMITH A44WG1499 R001 W L SMITH 08 31 10 12 18 10 Printed on 12 18 10 6 13 psecs motoreng REL S O FRAME HP TYPE PHASE HERTZ RPM VOLTS AMPS DUTY AMB C INSUL S F NEMA DESIGN CODE LETTER ENCL E S ROTOR TEST S O TEST DATE STATOR RES 25 C OHMS BETWEEN LINES PERFORMANCE LOAD HP AMPERES RPM POWER FACTOR EFFICIENCY NO LOAD 1 4 2 4 3 4 4 4 5 4 SPEED TORQUE RPM TORQUE FULL LOAD TORQUE AMPERES LOC...

Page 10: ...2 18 10 6 14 psecs motoreng REL S O FRAME HP TYPE PHASE HERTZ RPM VOLTS AMPS DUTY AMB C INSUL S F NEMA DESIGN CODE LETTER ENCLOSURE E S ROTOR TEST S O TEST DATE STATOR RES 25 C OHMS BETWEEN LINES A C MOTOR PERFORMANCE CURVES DR BY CK BY APP BY DATE ISSUE DATE AMPERES SHOWN FOR AMPERES WILL VARY INVERSELY WITH THE RATED VOLTAGE CONNECTION IF OTHER VOLTAGE CONNECTIONS ARE AVAILABLE THE Rotext2 0 ...

Page 11: ... FRAME HP TYPE PHASE HERTZ RPM VOLTS AMPS DUTY AMB C INSUL S F NEMA DESIGN CODE LETTER ENCLOSURE E S ROTOR TEST S O TEST DATE STATOR RES 25 C OHMS BETWEEN LINES A C MOTOR PERFORMANCE CURVES REMARKS DR BY CK BY APP BY DATE ISSUE DATE AMPERES SHOWN FOR AMPERES WILL VARY INVERSELY WITH THE RATED VOLTAGE VOLT CONNECTION IF OTHER VOLTAGE CONNECTIONS ARE AVAILABLE THE 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9...

Page 12: ...Page 12 of 45 Product Information Packet ECP844256T 4 250HP 1200RPM 3PH 60HZ 449T TEFC FOOT ...

Page 13: ...Page 13 of 45 Product Information Packet ECP844256T 4 250HP 1200RPM 3PH 60HZ 449T TEFC FOOT ...

Page 14: ...roduct Information Packet ECP844256T 4 250HP 1200RPM 3PH 60HZ 449T TEFC FOOT Integral Horsepower AC Induction Motors ODP WPI Enclosures TENV TEAO TEFC Enclosure Explosion Proof Installation Operating Manual 3 09 MN408 ...

Page 15: ...Page 15 of 45 Product Information Packet ECP844256T 4 250HP 1200RPM 3PH 60HZ 449T TEFC FOOT Any trademarks used in this manual are the property of their respective owners ...

Page 16: ...ling Bolting 2 3 Guarding 2 3 Power Connection 2 3 Grounding 2 3 Conduit Box 2 3 AC Power 2 4 Rotation 2 4 Connection Diagrams 2 5 First Time Start Up 2 7 Initial Lubrication 2 8 Test for General Condition 2 8 Coupled Start Up 2 8 Jogging and Repeated Starts 2 8 Heating 2 8 Hazardous Locations 2 8 Selection 2 8 Protection Concepts 2 8 Repair of Motors used in Hazardous Locations 2 10 Section 3 Mai...

Page 17: ...Page 17 of 45 Product Information Packet ECP844256T 4 250HP 1200RPM 3PH 60HZ 449T TEFC FOOT Section 1 General Information ii Table of Contents MN408 ...

Page 18: ... has been disconnected Electrical shock can cause serious or fatal injury Only qualified personnel should attempt the installation operation and maintenance of this equipment WARNING Disconnect all electrical power from the motor windings and accessory devices before disassembly of the motor Electrical shock can cause serious or fatal injury WARNING Be sure the system is properly grounded before a...

Page 19: ...her driven equipment from the motor shaft before lifting the motor Caution If eye bolts are used for lifting a motor be sure they are securely tightened The lifting direction should not exceed a 20 angle from the shank of the eye bolt or lifting lug Excessive lifting angles can cause damage Caution To prevent equipment damage be sure that the electrical service is not capable of delivering more th...

Page 20: ...er is greater Minimum resistance is calculated as follows Rm kV 1 where Rm is minimum resistance to ground in Meg Ohms and kV is rated nameplate voltage defined as Kilo Volts Example For a 480VAC rated motor Rm 1 48 meg ohms use 5 MΩ For a 4160VAC rated motor Rm 5 16 meg ohms Preparation for Storage 1 Some motors have a shipping brace attached to the shaft to prevent damage during transportation T...

Page 21: ... rust preventing material An acceptable product for this purpose is Exxon Rust Ban 392 8 Carbon brushes should be lifted and held in place in the holders above the commutator by the brush holder fingers The commutator should be wrapped with a suitable material such as cardboard paper as a mechanical protection against damage Non Regreaseable Motors Non regreasable motors with Do Not Lubricate on t...

Page 22: ...tection ATEX Equipment Group and Category II3 Type of Atmosphere G Gas D Dust G Ambient Range European Conformity Mark Place of Manufacture Specific Conditions of Use If the motor certificate number is followed by the symbol X this indicates that the motor has specific conditions of use which are indicated on the certificate It is necessary to review the product certification certificate in conjun...

Page 23: ...Page 23 of 45 Product Information Packet ECP844256T 4 250HP 1200RPM 3PH 60HZ 449T TEFC FOOT 1 6 General Information MN408 ...

Page 24: ...e where there is a risk of ignition or explosion due to the presence of combustible gases vapors dust fibers or flyings Facilities requiring special equipment for hazardous locations are typically classified in accordance with local requirements In the US market guidance is provided by the National Electric Code Mounting Location The motor should be installed in a location compatible with the moto...

Page 25: ...ded in the design of the lifting means Likewise precautions should be taken to prevent hazardous overloads due to deceleration acceleration or shock forces Alignment Accurate alignment of the motor with the driven equipment is extremely important The pulley sprocket or gear used in the drive should be located on the shaft as close to the shaft shoulder as possible It is recommended to heat the pul...

Page 26: ...National Electrical Code Article 430 for information on grounding of motors and generators and Article 250 for general information on grounding In making the ground connection the installer should make certain that there is a solid and permanent metallic connection between the ground point the motor or generator terminal housing and the motor or generator frame In non USA locations consult the app...

Page 27: ...be tied together Three thermistors are installed in windings and tied in series Leads are labeled TD1 TD2 Winding RTDs are installed in windings 2 per phase Each set of leads is labeled 1TD1 1TD2 1TD3 2TD1 2TD2 2TD3 etc One bearing RTD is installed in Drive endplate PUEP leads are labeled RTDDE One bearing RTD is installed in Opposite Drive endplate FREP leads are labeled RTDODE Note RTD may have ...

Page 28: ...Packet ECP844256T 4 250HP 1200RPM 3PH 60HZ 449T TEFC FOOT Installation Operation 2 5 MN408 Note Main power leads for CE Marked Motors may be marked U V W for standard configurations please consult connection diagrams Connection Diagrams ...

Page 29: ...Page 29 of 45 Product Information Packet ECP844256T 4 250HP 1200RPM 3PH 60HZ 449T TEFC FOOT 2 6 Installation Operation MN408 Connection Diagrams Continued ...

Page 30: ...re tightened etc 2 If motor has been in storage or idle for some time check winding insulation integrity 3 Inspect all electrical connections for proper termination clearance mechanical strength and electrical continuity 4 Be sure all shipping materials and braces if used are removed from motor shaft 5 Manually rotate the motor shaft to ensure that it rotates freely 6 Replace all panels and covers...

Page 31: ...ation in that environment and identifies what the maximum safe temperature or temperature class is required It is the customer or users responsibility to determine the area classification and select proper equipment Areas are classified with respect to risk and exposure to the hazard In the US market areas are typically classified as follows Class Division Group and Temperature Class In some newer...

Page 32: ... paths designed for the rotating shaft In the international designations this concept is referred to as dust ignition proof or Ex tD External surface temperature remains the limiting factor Thermal limiting devices such as thermostats thermistors or RTDs may be provided on these motors to limit the external surface temperature during overload conditions If thermostats are provided as a condition o...

Page 33: ...tionary parts of the motor and the coupled equipment Repair of Motors used in Hazardous Locations Repair of hazardous certified motors requires additional information skill and care It is the customer s responsibility to select service shops with proper qualifications to repair hazardous location motors Contact the manufacture for additional repair details Use only original manufacturer s parts Re...

Page 34: ... maintained Record the readings Immediately investigate any significant decrease in insulation resistance 3 Check all electrical connectors to be sure that they are tight Relubrication Bearings Bearing grease will lose its lubricating ability over time not suddenly The lubricating ability of a grease over time depends primarily on the type of grease the size of the bearing the speed at which the b...

Page 35: ...speeds greater than 3600 RPM contact Baldor for relubrication recommendations Table 3 3 Service Conditions Severity of Service Hours per day of Operation Ambient Temperature Maximum Atmospheric Contamination Standard 8 40 C Clean Little Corrosion Severe 16 Plus 50 C Moderate dirt Corrosion Extreme 16 Plus 50 C or Class H Insulation Severe dirt Abrasive dust Corrosion Heavy Shock or Vibration Low T...

Page 36: ...210 132 6307 0 30 8 4 0 6 2 0 250 160 6309 0 47 12 5 0 7 2 5 280 180 6311 0 61 17 1 2 3 9 320 200 6312 0 76 20 1 1 2 4 0 360 225 6313 0 81 23 1 5 5 2 400 250 6316 1 25 33 2 0 6 6 440 280 6319 2 12 60 4 1 13 4 5000 to 5800 315 450 6328 4 70 130 9 2 30 0 5000 to 5800 315 450 NU328 4 70 130 9 2 30 0 360 to 449 225 280 NU319 2 12 60 4 1 13 4 AC Induction Servo 76 Frame 180 112 6207 0 22 6 1 0 44 1 4 7...

Page 37: ...tures premature lubrication breakdown and bearing failure 3 Add the recommended amount of grease 4 Operate the motor for 15 minutes with grease plug removed This allows excess grease to purge 5 Re install grease outlet plug Without Grease Provisions Note Only a Baldor authorized and UL or CSA certified service center can disassemble a UL CSA listed explosion proof motor to maintain it s UL CSA lis...

Page 38: ...r winding Check stator resistance at all three phases for balance Grounded winding Perform dielectric test and repair as required Improper connections Inspect all electrical connections for proper termination clearance mechanical strength and electrical continuity Refer to motor lead connection diagram Bearing Over Heating Misalignment Check and align motor and driven equipment Excessive belt tens...

Page 39: ...talled so they are in contact with the outer race on ball or roller bearings or in direct contact with the sleeve bearing shell Winding RTDs Temperature Limit In 5C 405C Maximum Ambient Motor Load Class B Temp Rise 3 80 C Typical Design Class F Temp Rise 3 105 C Class H Temp Rise 3 125 C Alarm Trip Alarm Trip Alarm Trip 3 Rated Load 130 140 155 165 175 185 Rated Load to 1 15 S F 140 150 160 165 18...

Page 40: ...Page 40 of 45 Product Information Packet ECP844256T 4 250HP 1200RPM 3PH 60HZ 449T TEFC FOOT Baldor District Offices Baldor District Offices Baldor District Offices ...

Page 41: ...44256T 4 250HP 1200RPM 3PH 60HZ 449T TEFC FOOT 2009 Baldor Electric Company MN408 All rights reserved Printed in USA 3 09 BALDOR ELECTRIC COMPANY World Headquarters P O Box 2400 Fort Smith AR 72901 2400 479 646 4711 Fax 479 648 5792 www baldor com ...

Page 42: ... local codes Special motors for use by United States Government including special specifications master plans etc refer to the applicable master plans and specifications involved On motors received from the factory with the shaft blocked remove blocking before operating the motor If motor is to be reshipped alone or installed to another piece of equipment the shaft block must be installed to preve...

Page 43: ... for the motor the voltage is low or the motor has been miswired In any case immediately shut motor off and investigate the cause ROTATION To reverse the direction of rotation disconnect and lockout power and interchange any two of the three AC power leads for three phase motors For two phase four wire disconnect and lockout power and interchange the AC line leads on any one phase For two phase th...

Page 44: ...9500 Hrs 15000 Hrs 18000 Hrs Over 280 to 360 incl 225 2200 Hrs 7400 Hrs 12000 Hrs 15000 Hrs Over 360 to 5000 incl 300 2200 Hrs 3500 Hrs 7400 Hrs 10500 Hrs Relubrication intervals are for ball bearings For vertically mounted motors and roller bearings divide the relubrication interval by 2 For motors operating at speeds greater than 3600 RPM contact Baldor for relubrication recommendations Table 3 ...

Page 45: ...iagram provided on the Baldor motor Some examples are as follows Three Leads U T1 W T3 V T2 WYE Connection U T1 W T3 V T2 DELTA Connection U T1 Line 1 V T2 Line 2 W T3 Line 3 Wiring Diagram Six Leads U1 T1 W1 T3 V1 T2 DELTA WYE Connection U1 T1 V2 T5 V1 T2 WYE DELTA Connection W2 T6 U2 T4 Line 2 V2 T5 Line 3 Wiring Diagram U2 T4 V2 T5 W2 T6 W1 T3 U2 T4 W2 T6 U1 T1 V1 T2 W1 T3 W2 T6 Line 1 U2 T4 Li...

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