Type ETW Motor Start Capacitors Type ETW – Non Polarized Aluminum Electrolytic Application AC Motor Start capacitors provide small AC motors with starting torque. They are designed for intermittent AC duty. Type ETW capacitors are provided with a pressure safety vent and are furnished in phenolic cases. Highlights High-Voltage and Motor Capacitors • • • • • • • • Stock Items 21-25 25-30 30-36 36-43 43-52 S S S S S ETW21-125-N1 ETW25-125-N1 ETW30-125-N1 ETW36-125-N1 ETW43-125-N1 1.437 1.437 1.437 1.437 1.437 2.750 2.750 2.750 2.750 2.750 53-64 64-77 72-86 88-106 S S S S ETW53-125-N1 ETW64-125-N1 ETW72-125-N1 ETW88-125-N1 1.437 1.437 1.437 1.437 108-130 124-149 130-156 145-174 161-193 S S S S S ETW108-125-N1 ETW124-125-N1 ETW130-125-N1 ETW145-125-N1 ETW161-125-N1 189-227 S 200-240 216-259 233-280 243-292 S S S S 270-324 300-360 324-389 340-408 S S S S 6.008 Catalog Number 125 Vac Case Dimensions Inches D L C Cap. µF Voltage range: 125 to 330 Vac Capacitance range: 21 to 1200 µF 50,000 starts minimum Temperature range: -40°C to 65°C Operating frequency: 50-60 Hz Meets EIA RS463 Type II 2-bladed quick connects; standard terminations Specify "R" at end of part number for 15,000 ohm, 2 Watt, bleeder resistor. Catalog Number 125 Vac (cont’d) Case Dimensions Inches D L C Cap. µF Stock Items 0.500 0.500 0.500 0.500 0.500 378-454 400-480 430-516 460-552 540-648 S S S S S ETW378-125-N2 ETW400-125-N2 ETW430-125-N2 ETW460-125-N2 ETW540-125-N4 1.437 1.437 1.437 1.437 1.812 3.375 3.375 3.375 3.375 3.375 0.500 0.500 0.500 0.500 0.625 2.750 2.750 2.750 2.750 0.500 0.500 0.500 0.500 590-708 708-850 829-995 1000-1200 S S S S ETW590-125-N4 ETW708-125-N4 ETW829-125-N4 ETW1000-125-N7 1.812 1.812 1.812 2.062 3.375 3.375 3.375 4.375 0.625 0.625 0.625 0.875 1.437 1.437 1.437 1.437 1.437 2.750 2.750 2.750 2.750 2.750 0.500 0.500 0.500 0.500 0.500 108-130 145-174 161-193 189-227 ETW108-165-N1 ETW145-165-N1 ETW161-165-N1 ETW189-165-N2 1.437 1.437 1.437 1.437 2.750 2.750 2.750 3.375 0.500 0.500 0.500 0.500 ETW189-125-N1 1.437 2.750 0.500 216-260 ETW216-165-N4 1.812 3.375 0.625 ETW200-125-N1 ETW216-125-N1 ETW233-125-N1 ETW243-125-N1 1.437 1.437 1.437 1.437 2.750 2.750 2.750 2.750 0.500 0.500 0.500 0.500 233-280 243-292 270-324 324-390 ETW233-165-N4 ETW243-165-N4 ETW270-165-N4 ETW324-165-N4 1.812 1.812 1.812 1.812 3.375 3.375 3.375 3.375 0.625 0.625 0.625 0.625 ETW270-125-N1 ETW300-125-N1 ETW324-125-N1 ETW340-125-N2 1.437 1.437 1.437 1.437 2.750 2.750 2.750 3.375 0.500 0.500 0.500 0.500 340-408 378-454 400-480 430-516 ETW340-165-N4 ETW378-165-N4 ETW400-165-N4 ETW430-165-N4 1.812 1.812 1.812 1.812 3.375 3.375 3.375 3.375 0.625 0.625 0.625 0.625 165 Vac 1605 East Rodney French Blvd. New Bedford, MA 02744 (508) 996-8564, Fax (508) 996-3830 http://www.cornell-dubilier.com E-mail: [email protected] CORNELL DUBILIER Your Source For Capacitor Solutions Type ETW Motor Start Capacitors Catalog Number 250 Vac Case Dimensions Inches D L C CAP µF Stock Items 21-25 S ETW21-250-N1 1.437 2.750 25-30 S ETW25-250-N1 1.437 2.750 30-36 S ETW30-250-N1 1.437 2.750 0.500 36-43 S ETW36-250-N1 1.437 2.750 0.500 21-25 S 43-52 S ETW43-250-N1 1.437 2.750 0.500 25-30 S 53-64 S ETW53-250-N1 1.437 2.750 0.500 30-36 56-72 S ETW56-250-N1 1.437 2.750 0.500 64-77 S ETW64-250-N1 1.437 2.750 72-86 S ETW72-250-N4 1.812 88-106 S ETW88-250-N4 108-130 S 124-149 S 130-156 Catalog Number 250 Vac (cont’d) Case Dimensions Inches D L C CAP µF Stock Items 0.500 270-324 S ETW270-250-N6 2.062 3.375 0.875 0.500 340-408 S ETW340-250-N7 2.062 4.375 0.875 ETW21-330-N2 1.437 3.375 0.500 ETW25-330-N2 1.437 3.375 0.500 S ETW30-330-N2 1.437 3.375 0.500 36-43 S ETW36-330-N2 1.437 3.375 0.500 0.500 43-52 S ETW43-330-N4 1.812 3.375 0.625 3.375 0.625 53-64 S ETW53-330-N4 1.812 3.375 0.625 1.812 3.375 0.625 64-77 S ETW64-330-N4 1.812 3.375 0.625 ETW108-250-N4 1.812 3.375 0.625 72-86 S ETW72-330-N4 1.812 3.375 0.625 ETW124-250-N4 1.812 3.375 0.625 88-106 S ETW88-330-N4 1.812 3.375 0.625 S ETW130-250-N4 1.812 3.375 0.625 108-130 S ETW108-330-N7 2.062 4.375 0.875 145-174 S ETW145-250-N4 1.812 3.375 0.625 124-149 S ETW124-330-N7 2.062 4.375 0.875 161-193 S ETW161-250-N6 2.062 3.375 0.875 130-156 S ETW130-330-N7 2.062 4.375 0.875 189-227 S ETW189-250-N6 2.062 3.375 0.875 145-174 S ETW145-330-N7 2.062 4.375 0.875 216-259 S ETW216-250-N6 2.062 3.375 0.875 161-193 S ETW161-330-N7 2.062 4.375 0.875 233-280 S ETW233-250-N6 2.062 3.375 0.875 189-227 S ETW189-330-N7 2.062 4.375 0.875 243-292 S ETW243-250-N6 2.062 3.375 0.875 216-259 S ETW216-330-N7 2.062 4.375 0.875 330 Vac High-Voltage and Motor Capacitors Bracket, Endcap & Capacitor Assembly Mounting Hardware Case Code N1 N2 N4 N6 N7 Case Dimensions (inches) D 1.437 1.437 1.812 2.062 2.062 L 2.750 3.375 3.375 3.375 4.375 Optional End Cap 30066 30066 34618-3 34618-2 34618-2 Optional Mounting Bracket 34946-2 34946 34946 34946 34946-1 * Order both endcap and bracket for mounting CORNELL DUBILIER Your Source For Capacitor Solutions 1605 East Rodney French Blvd. New Bedford, MA 02744 (508) 996-8564, Fax (508) 996-3830 http://www.cornell-dubilier.com E-mail: [email protected] 6.009 Application Guide for Type ETW Motor Start Capacitors VOLTAGE RATING Duty Cycles of Type II The capacitorsís rated voltage must be greater than or equal to the average voltage across the capacitor' s terminals during the motor starting cycle. This is not the same voltage as the motor line voltage. In addition, the cutoff voltage rating of the capacitor must be greater than or equal to the maximum voltage attained across the terminals of the capacitor in actual service. The maximum recommended cut-off voltages for the four standard voltage ratings are as follows: Rated Voltage (rms) 125 165 250 330 Maximum Cut-Off Voltage (rms) 160 210 300 400 Table A Ra te d Volta ge VAC (rm s) 125 165 250 These ratings are based on the maximum capacitor temperature of 65 °C. 330 CAPACITANCE RATING The capacitance is chosen to give the necessary starting torque to the motor. The minimum capacitance value is the minimum designed capacitance. The maximum capacitance is 20% more than the minimum value. From To 21-25 108-130 161-193 243-292 400-480 645-774 21-25 108-130 130-156 233-280 378-454 21-25 36-43 72-86 108-130 216-259 21-25 25-36 36-43 72-86 108-130 81-106 145-174 233-280 378-454 590-708 800-960 88-106 124-149 216-259 340-408 590-708 30-36 64-77 88-106 189-227 324-389 21-25 30-36 64-77 88-106 130-156 % Duty Se cs. Se cs. Cycle (On) (Off) 0.75 29.25 2.500 1 59 1.670 1 89 1.110 1 119 0.833 1 179 0.556 1 239 0.417 1 59 1.670 1 89 1.110 1 119 0.833 1 179 0.556 1 239 0.417 1 59 1.670 1 89 1.110 1 119 0.833 1 179 0.556 1 239 0.417 1 59 1.670 1 89 1.110 1 119 0.833 1 179 0.556 1 239 0.417 Duty Cycle # of Starts 50,000 50,000 33,500 25,000 16,500 12,500 33,500 33,500 25,000 16,500 12,500 33,500 33,500 25,000 16,500 12,500 33,500 33,500 25,000 16,500 12,500 Typical life expectancy is 50,000 cycles for 125V ratings, and 40,000 total cycles for 165, 250 and 330V ratings. The number of cycles shown in the table above are for the convenient test time of 35 days total for all ratings. Duty Cycles of Type I DUTY CYCLE High-Voltage and Motor Capacitors Ca pa citance Ra ting (µ F) Table B The duty cycle should be calculated for each application. It is the ratio of the time the capacitor is on voltage to the total time of one cycle. The duty cycles for the normal performance of standard Type II capacitors are listed in Table A. CDE type ETW capacitors may be used in any intermittant application within their temperature and voltage range where the duty cycle does not exceed that listed in Table A. This is in accordance with the standards in EIA Specification RS-463 for Type II capacitors. If a particular application exceeds the normal duty cycle, but does not exceed the values listed in Table B, an extra performance or Type I capacitor is required. If an application exceeds the duty cycles of Type I, other methods of capacitor selection must be used. Contact CDE, for Engineering assistance. FREQUENCY MOUNTING These capacitors are designed for 60 Hz application but may be operated in the range of 47 Hz - 60 Hz without damage provided voltage limitations stated above are observed. For other variations in frequency, contact CDE. Vertical mounting of the capacitor with the terminals up is recommended. However, horizontal mounting is acceptable providing the vent is in the upward position. Vertical mounting with the terminals down is not recommended because the capacitor life may be reduced. 6.010 Ra te d Volta ge VAC (rm s) Ca pa citance Ra ting (µ F) 125 165 250 330 all all all all 1605 East Rodney French Blvd. New Bedford, MA 02744 (508) 996-8564, Fax (508) 996-3830 http://www.cornell-dubilier.com E-mail: [email protected] Duty Cycle % Duty Se cs. Se cs. Cycle (On) (Off) 0.75 29.25 2.500 1 59 1.670 1 59 1.670 1 59 1.670 # of Starts 75,000 40,000 40,000 40,000 CORNELL DUBILIER Your Source For Capacitor Solutions