How to select the correct size DS7 soft start controller

Transcription

1 Effective May 7 How to select the correct size D7 soft start controller Application The D7 is a two phase control soft start controller utilized to accomplish motor starting using the reduced voltage method. Typically, the motor Horsepower or kw rating is used to determine the minimum required size of the soft start controller. This document addresses ramp time (T-tart) and start voltage (U-tart) parameters that require consideration in accomplishing the proper match of soft start controller to the load. Overview oft start controller sizing is typically determined beginning with the Horsepower or kw rating of the motor, coupled with the mains operating voltage. Using this information, a table or graph is consulted to factor in the starting time (t-tart) to determine the minimum size soft start controller that is appropriate for the application. If the application is considered to be severe due to a higher current inrush and/or longer starting time, it is commonplace to select a larger rated soft start controller to accommodate the higher loading on the CR s. The graphs and tables published for the D7 are based on an inrush value of 300% FLA or 400% FLA of the motor. A NEMA category B motor that is very common will demonstrate a 300% current rise during the start under normal conditions. If the actual inrush current approaches a value of 400% FLA as would be the case with higher NEMA Motor Code Letters, the maximum allowable ramp times are significantly affected. The t-tart starting time must be seriously considered and kept as short as practical (5 seconds). As the start time parameter is increased, the maximum allowable current capacity is decreased. When selecting the size of the, Tables 4-7 may be used if the anticipated starting time is seconds or less. Please note that either 300% or 400% Current Limit refers to the maximum anticipated start current in terms of motor FLA (3x or 4x). The D7 does not have a current limiter function. If the starting time is expected to be longer, Tables 8-4 should be reviewed to ensure that the soft starter is not subjected to excessive current resulting in CR failure. The size of the soft start controller may be required to be increased specifically due to a longer ramp time. NNote: The D7 oft tart controller may be incorrectly sized if based solely on motor Horsepower or kw rating and mains voltage alone.

2 Effective May 7 How to select the correct size The D7 oft tarter requires that specific attention is given to two factorse: Ultimate load the maximum inrush current that the soft start controller will transmit anytime during the start process. Ramp time the expected, or required, starting time required for the motor to achieve synchronous speed. Example 7.5HP Motor (A FLA) Motor Code Letter 460V Application, with an estimated starting time time of 8 seconds and 4 starts per hour. First, the locked rotor current (LRC) is used to determine the initial current rise when the motor is energized. This information may be noted on the Motor Nameplate. If the LRC is not indicated on the nameplate, the LRC may be calculated from the formula shown in Equation. Calculations indicate an LRC range of amps. A 300% current rise for this motor yields 33 amps (3 x amps), so the 300% Current Rise Table will be used for basic product selection. Consulting Table 4, the D7-340X02N0-N soft start controller shows an acceptable maximum motor size of 7.5HP. Please note that Tables 4 thru 7 indicate maximum allowable start ramp times of start/hr for these selections. Consulting Table and/ or Figure 4, the maximum allowable start current is noted as 8 second start time If needed, the starting time could be increased to seconds as the maximum allowable start current is 33.6 amps. Under these conditions, a D7-340X02N0-N soft starter is the appropriate selection for this application. Control Voltages for the D7 D7-340X...N0-N = 24 Vac/Vdc Uc D7-342X...N0-N = /240 Vac Uc D7-34DX...N0-D = 24 Vdc Uc upporting documentation Manuals D7 User Manual D7 Instructional Leaflet Program Files Outline Drawings Additional help Reference Number MN03900Z-EN IL Frame (4-2A) IL039004E - Frame 2 (6-32A) IL039005Z - Frames 3 & 4 (4-0A) none In the event additional help is needed, please contact the Technical Resource Center at -877-ETN-CARE. Option 2, ub Option 2. Example 2 With the same operating conditions as in Example, it is determined that the starting time must be extended to 2 seconds for the motor to achieve synchronous speed. Consulting Table and/or Figure 4, the maximum allowable start current for 2 seconds is indicated as 3.2 amps, less than the required 33A (3 x amps). Under these conditions, the D7-340X02N0-N soft start controller would not be an appropriate selection. Table 2 and/or Figure 5 for the next higher size unit, lists the maximum allowable start 2 seconds as approximately 36.8A. If needed, the starting time could be increased to 5 seconds as the maximum allowable start current is 33.6 amps. Under these new conditions, the next size higher soft start controller, D7-340X06N0-N is the suitable choice, as the maximum allowable start current for these conditions is sufficient for proper operation. Example 3 With the same operating conditions as in Example, it is discovered that the Motor Code Letter is D instead of B. Using Equation, the LRC current is 37.7 to 42.3 amps, so Table 5 (400% current rise) will be used for basic product selection. Table 5 indicates the D7-340X06N0-N is the appropriate selection for this 7.5 hp motor. Consulting Table 2 and/or Figure 5, the maximum allowable start current for 8 seconds is 46.4 amps. Please note that this product selection is at the maximum allowable starting time. Consulting Table 2 and/or Figure 5 shows the maximum allowable current for a 9 second start time is 43.2 amps. A larger soft start controller, the D7-340X024N0-N should be seriously considered if the starting time may exceed 8 seconds.. This operating condition will also require a larger capacity unit (D7-340X06N0-N) to accommodate the higher operating current (44 amps) during the starting time. NNote: Examples - 3 refer to LRC values at full mains voltage. Please keep in mind that these values are very close to the ultimate maximum rating of the CR s. etting the U-tart potentiometer to settings below 0% will lower the currents and extend the service life of the unit. Eaton does not recommend sizing based on U-tart settings below 0%. 2

3 How to select the correct size Application Paper AP039004EN Effective May 7 Determining initial current based on locked rotor current The National Electrical Code requires that all alternating current motors of /2 horsepower and higher must have code letters on the data plate indicating motor current in a locked rotor condition. This code denotes the Kilovolt-Ampere per horsepower of the motor. The KVAhp value is obtained from NEMA and/or NEC publications. The table below is provided as a reference. Locked rotor current of a three phase motor may be calculated using the following formula: Equation e: Calculating Locked Rotor Current (LRC): Locked Rotor Current = Horsepower x KVAhp x 00 E x.73 Example 4 To calculate the locked rotor current range of a 50 horsepower motor operating at 460 volts with a code letter B, proceed as follows; Locked Rotor Current = 50 x 3.5 x 00 = 97.9 Amperes (minimum) 460 x.73 Locked Rotor Current = 50 x 3.54 x 00 = Amperes (maximum) 460 x.73 Table. Motor Code Letter Locked Rotor kv-amp / hp Motor Code Letters Code Letter Locked Rotor Kilovolt-Ampere per hp Minimum Maximum A B C D E F G H J K L M.00.9 N P R T U V D7 Parameterization To determine the expected Initial Current value after determining the locked rotor current, apply the corresponding current reduction value based on the U-tart setting of the soft start controller in Table. electing a value of 53 (4th increment mark), the expected current will be 53% of the above values, or 4.89 amps to 7.88 amps respectively. Please note that the motor will develop approximately 28% of full voltage torque which is very similar to the starting current of a wye-delta configuration. NNote: The values in Table correspond to the increment marks on the U-tart potentiometer. Table 2. U-tart Initial Current U-tart ettings U-tart Current % Torque % The diagrams below show various potentiometer settings that have proven to be effective for standard application in real-life environments. NNote: The current in the motor circuit will be subject to the total impedance of the motor circuit, so actual values may be slightly different than calculated values. 3

4 Effective May 7 How to select the correct size Examples The following default settings are recommended for an application: Table 3. Parameterization Examples t-tart (s) U-tart (%) t-top (s) t - tart (s) U - tart (%) t - top (s) Application examples ~ ~30 0 ~25 ~ ~30 ~ ~ J 0 Low flywheel mass Conveyor belt with loose belt Roller conveyers ~ 0 30 ~ ~ Centrifugal pump ~5 30 ~ Fan general (building) with belt drive ~8 30 ~ J 0 High flywheel mass D7 >P Motor ~5 30 ~ Tunnel fan Axial fan D7 >P Motor ~ ~60 0 Bulk conveyor Escalator ~ ~60 0 Mixers Agitators D7 >P Motor

5 How to select the correct size Application Paper AP039004EN Effective May 7 D7 oft tart Controllers Horsepower Ratings Table 4. econd Ramp, tart per Hour, 300% Current 40ºC. D7-340X004N0-N D7-342X004N0-N D7-34DX004N0-D D7-340X007N0-N D7-342X007N0-N D7-34DX007N0-D D7-340X009N0-N D7-342X009N0-N D7-34DX009N0-D D7-340X02N0-N D7-342X02N0-N D7-34DX02N0-D D7-340X06N0-N D7-342X06N0-N D7-34DX06N0-D D7-340X024N0-N D7-342X024N0-N D7-34DX024N0-D D7-340X032N0-N D7-342X032N0-N D7-34DX032N0-D D7-340X04N0-N D7-342X04N0-N D7-34DX04N0-D D7-340X055N0-N D7-342X055N0-N D7-34DX055N0-D D7-340X070N0-N D7-342X070N0-N D7-34DX070N0-D D7-340X08N0-N D7-342X08N0-N D7-34DX08N0-D D7-340X0N0-N D7-342X0N0-N D7-34DX0N0-D D7-340X35N0-N D7-342X35N0-N D7-34DX35N0-D D7-340X60N0-N D7-342X60N0-N D7-34DX60N0-D D7-340X0N0-N D7-342X0N0-N D7-34DX0N0-D Motor Power (hp) Rated Current Amps 0V 230V 480V Maximum Allowable Breaker ize Maximum Allowable Fuse ize Recommended XTOB Overload Recommended C440 Overload HFD305 5A Class RK5 XTOB040DC C440AA00AX HFD305 5A Class RK5 XTOB057DC C440AA0AX HFD30 A Class RK5 XTOB065DC C440AA0AX HFD3030 A Class RK5 XTOB0GC 2 C440AA0AX HFD A Class RK5 XTOB0GC 2 C440AA0AX HFD A Class RK5 XTOB25GC 2 C440AA04AX HFD A Class RK5 XTOB60GC 2 C440AA04AX HFD350L 50A Class RK5 XTOB040DC 2 C440AA04AX HFD30L 0A Class RK5 XTOB057DC 2 C440BA0AX HJD3250 0A Class RK5 XTOB065DC 2 C440BA0AX HKD A Class RK5 XTOB0GC C440BA0AX HKD A Class RK5 XTOB0GC C440BA0AX HKD A Class RK5 XTOB25GC C440AA00AX HLD A Class RK5 XTOB60LC 3 C440AA00AX HLD A Class RK5 XTOB2LC 3 C440AA00AX 4 XTOBXDIND Panel Mounting Adapter must be used with this overload. 2 XTOBXTLL line and load lugs must be used with this overload. 5

6 Effective May 7 How to select the correct size D7 oft tart Controllers Horsepower Ratings Table 5. econd Ramp, tart per Hour, 400% Current 40ºC. D7-340X004N0-N D7-342X004N0-N D7-34DX004N0-D D7-340X007N0-N D7-342X007N0-N D7-34DX007N0-D D7-340X009N0-N D7-342X009N0-N D7-34DX009N0-D D7-340X02N0-N D7-342X02N0-N D7-34DX02N0-D D7-340X06N0-N D7-342X06N0-N D7-34DX06N0-D D7-340X024N0-N D7-342X024N0-N D7-34DX024N0-D D7-340X032N0-N D7-342X032N0-N D7-34DX032N0-D D7-340X04N0-N D7-342X04N0-N D7-34DX04N0-D D7-340X055N0-N D7-342X055N0-N D7-34DX055N0-D D7-340X070N0-N D7-342X070N0-N D7-34DX070N0-D D7-340X08N0-N D7-342X08N0-N D7-34DX08N0-D D7-340X0N0-N D7-342X0N0-N D7-34DX0N0-D D7-340X35N0-N D7-342X35N0-N D7-34DX35N0-D D7-340X60N0-N D7-342X60N0-N D7-34DX60N0-D D7-340X0N0-N D7-342X0N0-N D7-34DX0N0-D Motor Power (hp) Rated Current Amps 0V 230V 480V Maximum Allowable Breaker ize Maximum Allowable Fuse ize Recommended XTOB Overload Recommended C440 Overload HFD305 5A Class RK5 XTOB040DC C440AA00AX HFD305 5A Class RK5 XTOB057DC C440AA0AX HFD30 A Class RK5 XTOB065DC C440AA0AX HFD3030 A Class RK5 XTOB0GC 2 C440AA0AX HFD A Class RK5 XTOB0GC 2 C440AA0AX HFD A Class RK5 XTOB25GC 2 C440AA04AX HFD A Class RK5 XTOB60GC 2 C440AA04AX HFD350L 50A Class RK5 XTOB040DC C440AA04AX HFD30L 0A Class RK5 XTOB040DC C440AA04AX HJD3250 0A Class RK5 XTOB057DC 2 C440AA04AX HKD A Class RK5 XTOB057DC 2 C440BA0AX HKD A Class RK5 XTOB0GC C440BA0AX HKD A Class RK5 XTOB0GC C440BA0AX HLD A Class RK5 XTOB0GC C440BA0AX HLD A Class RK5 XTOB50GC C440AA00AX 3 XTOBXDIND Panel Mounting Adapter must be used with this overload. 2 XTOBXTLL line and load lugs must be used with this overload. 6

7 How to select the correct size Application Paper AP039004EN Effective May 7 D7 oft tart Controllers kw Ratings According to IEC Table 6. econd Ramp, tart per Hour, 300% Current 40ºC. D7-340X004N0-N D7-342X004N0-N D7-34DX004N0-D D7-340X007N0-N D7-342X007N0-N D7-34DX007N0-D D7-340X009N0-N D7-342X009N0-N D7-34DX009N0-D D7-340X02N0-N D7-342X02N0-N D7-34DX02N0-D D7-340X06N0-N D7-342X06N0-N D7-34DX06N0-D D7-340X024N0-N D7-342X024N0-N D7-34DX024N0-D D7-340X032N0-N D7-342X032N0-N D7-34DX032N0-D D7-340X04N0-N D7-342X04N0-N D7-34DX04N0-D D7-340X055N0-N D7-342X055N0-N D7-34DX055N0-D D7-340X070N0-N D7-342X070N0-N D7-34DX070N0-D D7-340X08N0-N D7-342X08N0-N D7-34DX08N0-D D7-340X0N0-N D7-342X0N0-N D7-34DX0N0-D D7-340X35N0-N D7-342X35N0-N D7-34DX35N0-D D7-340X60N0-N D7-342X60N0-N D7-34DX60N0-D D7-340X0N0-N D7-342X0N0-N D7-34DX0N0-D Motor Power (kw) Rated Current Amps 230V 400V Maximum Allowable Breaker ize Maximum Allowable Fuse ize Recommended XTOB Overload Recommended C440 Overload HFD305 5A Class RK5 XTOB040DC C440AA00AX HFD305 5A Class RK5 XTOB057DC C440AA0AX HFD30 A Class RK5 XTOB065DC C440AA0AX HFD3030 A Class RK5 XTOB0GC 2 C440AA0AX HFD A Class RK5 XTOB0GC 2 C440AA0AX HFD A Class RK5 XTOB25GC 2 C440AA04AX HFD A Class RK5 XTOB60GC 2 C440AA04AX 4 22 HFD350L 50A Class RK5 XTOB057DC 2 C440AA04AX HFD30L 0A Class RK5 XTOB057DC 2 C440BA0AX HJD3250 0A Class RK5 XTOB070GC 2 C440BA0AX HKD A Class RK5 XTOB0GC C440BA0AX HKD A Class RK5 XTOB0GC C440BA0AX HKD A Class RK5 XTOB50GC C440AA00AX HLD A Class RK5 XTOB60LC 3 C440AA00AX HLD A Class RK5 XTOB2LC 3 C440AA00AX 4 XTOBXDIND Panel Mounting Adapter must be used with this overload. 2 XTOBXTLL line and load lugs must be used with this overload. 7

8 Effective May 7 How to select the correct size D7 oft tart Controllers kw Ratings According to IEC Table 7. econd Ramp, tart per Hour, 400% Current 40ºC. Motor Power (kw) Rated Current Amps 230V 400V Maximum Allowable Breaker ize Maximum Allowable Fuse ize D7-340X004N0-N D7-342X004N0-N D7-34DX004N0-D D7-340X007N0-N D7-342X007N0-N D7-34DX007N0-D D7-340X009N0-N D7-342X009N0-N D7-34DX009N0-D D7-340X02N0-N D7-342X02N0-N D7-34DX02N0-D D7-340X06N0-N D7-342X06N0-N D7-34DX06N0-D D7-340X024N0-N D7-342X024N0-N D7-34DX024N0-D D7-340X032N0-N D7-342X032N0-N D7-34DX032N0-D D7-340X04N0-N D7-342X04N0-N D7-34DX04N0-D D7-340X055N0-N D7-342X055N0-N D7-34DX055N0-D D7-340X070N0-N D7-342X070N0-N D7-34DX070N0-D D7-340X08N0-N D7-342X08N0-N D7-34DX08N0-D D7-340X0N0-N D7-342X0N0-N D7-34DX0N0-D D7-340X35N0-N D7-342X35N0-N D7-34DX35N0-D D7-340X60N0-N D7-342X60N0-N D7-34DX60N0-D D7-340X0N0-N D7-342X0N0-N D7-34DX0N0-D Recommended XTOB Overload Recommended C440 Overload HFD305 5A Class RK5 XTOB040DC C440AA00AX HFD305 5A Class RK5 XTOB057DC C440AA0AX HFD30 A Class RK5 XTOB065DC C440AA0AX HFD3030 A Class RK5 XTOB0GC 2 C440AA0AX HFD A Class RK5 XTOB0GC 2 C440AA0AX HFD A Class RK5 XTOB25GC 2 C440AA04AX HFD A Class RK5 XTOB60GC 2 C440AA04AX HFD350L 50A Class RK5 XTOB040DC C440AA04AX HFD30L 0A Class RK5 XTOB040DC C440AA04AX HJD3250 0A Class RK5 XTOB057DC 2 C440BA0AX HKD A Class RK5 XTOB065DC 2 C440BA0AX HKD A Class RK5 XTOB0GC C440BA0AX HKD A Class RK5 XTOB0GC C440BA0AX HLD A Class RK5 XTOB60LC 3 C440AA00AX HLD A Class RK5 XTOB60LC 3 C440AA00AX 4 XTOBXDIND Panel Mounting Adapter must be used with this overload. 2 XTOBXTLL line and load lugs must be used with this overload. 8

9 How to select the correct size Application Paper AP039004EN Effective May 7 Figure e: 4 Amp Rated D7-340X004N0-N, D7-342X004N0-N D7-34DX004N0-D Figure 2e: 7 Amp Rated D7-340X007N0-N, D7-342X007N0-N D7-34DX007N0-D 30 2 D7-4A /hr (25 C ) /hr (40 C ) 4/hr (40 C ) /hr (40 C ) /hr (40 C ) 30 2 D7-7A /hr (25 C ) /hr (40 C ) 4/hr (40 C ) /hr (40 C ) /hr (40 C ) tart Time (s) tart Time (s) Table 8. 4A 8A 2A 6A A tart Current (A) D7-340X004N0-N, D7-342X004N0-N, D7-34DX004N0-D 4 A /hr /hr 4/hr /hr /hr Time (econds) 6.4 A 6.4 A 6.4 A 6.4 A 6.4 A A 6.4 A 6.4 A 5.6 A 3.6 A A 6.4 A 6.0 A 4.0 A 2.0 A A 5.2 A 4.8 A 2.8 A.4 A A 4.4 A 3.6 A 2.0 A 9.6 A A 4.0 A 3.2 A.2 A 8.8 A A 3.2 A 2.8 A.8 A 8.0 A A 2.8 A 2.0 A.0 A 7.6 A A 2.4 A.6 A 9.6 A 7.2 A 2.8 A 2.0 A.2 A 9.2 A 6.8 A 2.4 A.6 A.8 A 9.2 A 6.4 A A.2 A.4 A 8.8 A 6.4 A 3.6 A.8 A.0 A 8.4 A 6.0 A 4.6 A.4 A 9.6 A 8.4 A 5.6 A 5.2 A.4 A 9.2 A 8.0 A 5.6 A 6.8 A.0 A 9.2 A 7.6 A 5.6 A 7.4 A 9.6 A 8.8 A 7.6 A 5.2 A 8.4 A 9.6 A 8.4 A 7.6 A 5.2 A 9.0 A 9.2 A 8.4 A 7.2 A 5.2 A 9.6 A 9.2 A 8.0 A 7.2 A 4.8 A A 8.8 A 8.0 A 6.8 A 4.8 A A 8.8 A 8.0 A 6.8 A 4.8 A A 8.4 A 7.6 A 6.8 A 4.4 A A 8.4 A 7.6 A 6.8 A 4.4 A A 8.0 A 7.6 A 6.4 A 4.4 A A 8.0 A 7.2 A 6.4 A 4.4 A A 8.0 A 7.2 A 6.4 A 4.4 A A 7.6 A 7.2 A 6.4 A 4.0 A A 7.6 A 6.8 A 6.0 A 4.0 A A 7.6 A 6.8 A 6.0 A 4.0 A Table 9. 7A 4A 2A 28A 35A tart Current (A) D7-340X007N0-N, D7-342X007N0-N, D7-34DX007N0-D 7 A /hr /hr 4/hr /hr /hr Time (econds) 28.7 A 28.7 A 28.7 A 28.7 A 28.7 A A 28.7 A 28.7 A 27.3 A 23.8 A A 28.7 A 28.0 A 24.5 A 2.0 A A 26.6 A 25.9 A 22.4 A 8.2 A A 25.2 A 23.8 A 2.0 A 6.8 A A 24.5 A 23. A 9.6 A 5.4 A A 23. A 22.4 A 8.9 A 4.0 A A 22.4 A 2.0 A 7.5 A 3.3 A A 2.7 A.3 A 6.8 A 2.6 A 22.4 A 2.0 A 9.6 A 6. A.9 A 2.7 A.3 A 8.9 A 6. A.2 A A 9.6 A 8.2 A 5.4 A.2 A 3.3 A 8.9 A 7.5 A 4.7 A.5 A 4.3 A 8.2 A 6.8 A 4.7 A 9.8 A A 8.2 A 6. A 4.0 A 9.8 A A 7.5 A 6. A 3.3 A 9.8 A A 6.8 A 5.4 A 3.3 A 9. A A 6.8 A 4.7 A 3.3 A 9. A A 6. A 4.7 A 2.6 A 9. A 6.8 A 6. A 4.0 A 2.6 A 8.4 A A 5.4 A 4.0 A.9 A 8.4 A A 5.4 A 4.0 A.9 A 8.4 A A 4.7 A 3.3 A.9 A 7.7 A A 4.7 A 3.3 A.9 A 7.7 A A 4.0 A 3.3 A.2 A 7.7 A A 4.0 A 2.6 A.2 A 7.7 A A 4.0 A 2.6 A.2 A 7.7 A A 3.3 A 2.6 A.2 A 7.0 A A 3.3 A.9 A.5 A 7.0 A A 3.3 A.9 A.5 A 7.0 A 9

10 Effective May 7 How to select the correct size Figure 3e: 9 Amp Rated D7-340X009N0-N, D7-342X009N0-N D7-34DX009N0-D Figure 4e: 2 Amp Rated D7-340X02N0-N, D7-342X02N0-N, D7-34DX02N0-D 30 2 D7-9A /hr (25 C ) /hr (40 C ) 4/hr (40 C ) /hr (40 C ) /hr (40 C ) 30 2 D7-2A /hr (25 C ) /hr (40 C ) 4/hr (40 C ) /hr (40 C ) /hr (40 C ) tart Time (s) tart Time (s) 9A 8A 27A 36A 45A tart Current (A) Table. D7-340X009N0-N, D7-342X009N0-N, D7-34DX009N0-D 9 A /hr /hr 4/hr /hr /hr Time (econds) 36.9 A 36.9 A 36.9 A 36.9 A 36.9 A A 36.9 A 36.9 A 35. A 30.6 A A 36.9 A 36.0 A 3.5 A 27.0 A A 34.2 A 33.3 A 28.8 A 23.4 A A 32.4 A 30.6 A 27.0 A 2.6 A A 3.5 A 29.7 A 25.2 A 9.8 A A 29.7 A 28.8 A 24.3 A 8.0 A A 28.8 A 27.0 A 22.5 A 7. A A 27.9 A 26. A 2.6 A 6.2 A 28.8 A 27.0 A 25.2 A.7 A 5.3 A 27.9 A 26. A 24.3 A.7 A 4.4 A A 25.2 A 23.4 A 9.8 A 4.4 A A 24.3 A 22.5 A 8.9 A 3.5 A A 23.4 A 2.6 A 8.9 A 2.6 A A 23.4 A.7 A 8.0 A 2.6 A A 22.5 A.7 A 7. A 2.6 A A 2.6 A 9.8 A 7. A.7 A A 2.6 A 8.9 A 7. A.7 A A.7 A 8.9 A 6.2 A.7 A 2.6 A.7 A 8.0 A 6.2 A.8 A A 9.8 A 8.0 A 5.3 A.8 A 22.7 A 9.8 A 8.0 A 5.3 A.8 A 23.7 A 8.9 A 7. A 5.3 A 9.9 A 24.7 A 8.9 A 7. A 5.3 A 9.9 A A 8.0 A 7. A 4.4 A 9.9 A A 8.0 A 6.2 A 4.4 A 9.9 A A 8.0 A 6.2 A 4.4 A 9.9 A A 7. A 6.2 A 4.4 A 9.0 A A 7. A 5.3 A 3.5 A 9.0 A A 7. A 5.3 A 3.5 A 9.0 A 2A 24A 36A 48A 60A tart Current (A) Table. D7-340X02N0-N, D7342X02N0-N, D7-34DX02N0-D 2 A /hr /hr 4/hr /hr /hr Time (econds) 49.2 A 49.2 A 49.2 A 49.2 A 49.2 A A 49.2 A 49.2 A 46.8 A 40.8 A A 49.2 A 48.0 A 42.0 A 36.0 A A 45.6 A 44.4 A 38.4 A 3.2 A A 43.2 A 40.8 A 36.0 A 28.8 A A 42.0 A 39.6 A 33.6 A 26.4 A A 39.6 A 38.4 A 32.4 A 24.0 A A 38.4 A 36.0 A 30.0 A 22.8 A A 37.2 A 34.8 A 28.8 A 2.6 A 38.4 A 36.0 A 33.6 A 27.6 A.4 A 37.2 A 34.8 A 32.4 A 27.6 A 9.2 A A 33.6 A 3.2 A 26.4 A 9.2 A A 32.4 A 30.0 A 25.2 A 8.0 A A 3.2 A 28.8 A 25.2 A 6.8 A A 3.2 A 27.6 A 24.0 A 6.8 A A 30.0 A 27.6 A 22.8 A 6.8 A A 28.8 A 26.4 A 22.8 A 5.6 A A 28.8 A 25.2 A 22.8 A 5.6 A A 27.6 A 25.2 A 2.6 A 5.6 A 28.8 A 27.6 A 24.0 A 2.6 A 4.4 A A 26.4 A 24.0 A.4 A 4.4 A A 26.4 A 24.0 A.4 A 4.4 A A 25.2 A 22.8 A.4 A 3.2 A A 25.2 A 22.8 A.4 A 3.2 A A 24.0 A 22.8 A 9.2 A 3.2 A A 24.0 A 2.6 A 9.2 A 3.2 A A 24.0 A 2.6 A 9.2 A 3.2 A A 22.8 A 2.6 A 9.2 A 2.0 A A 22.8 A.4 A 8.0 A 2.0 A A 22.8 A.4 A 8.0 A 2.0 A

11 How to select the correct size Application Paper AP039004EN Effective May 7 Figure 5e: 6 Amp Rated D7-340X06N0-N, D7-342X06N0-N, D7-34DX06N0-D Figure 6e: 24 Amp Rated D7-340X024N0-N, D7-342X024N0-N, D7-34DX024N0-D 30 2 D7-6A /hr (25 C ) /hr (40 C ) 4/hr (40 C ) /hr (40 C ) /hr (40 C ) 30 2 D7-24A /hr (25 C ) /hr (40 C ) 4/hr (40 C ) /hr (40 C ) /hr (40 C ) tart Time (s) tart Time (s) 6A 32A 48A 64A 80A tart Current (A) Table 2. D7-340X06N0-N, D7-342X06N0-N, D7-34DX06N0-D 6 A /hr /hr 4/hr /hr /hr Time (econds) 65.6 A 65.6 A 65.6 A 65.6 A 62.4 A A 65.6 A 65.6 A 65.6 A 5.2 A A 65.6 A 65.6 A 60.8 A 44.8 A A 64.0 A 60.8 A 54.4 A 38.4 A A 60.8 A 56.0 A 48.0 A 35.2 A A 57.6 A 52.8 A 4.6 A 32.0 A A 54.4 A 49.6 A 36.8 A 28.8 A A 52.8 A 46.4 A 33.6 A 27.2 A A 49.6 A 43.2 A 32.0 A 25.6 A 5.2 A 48.0 A 4.6 A 30.4 A 25.6 A 49.6 A 46.4 A 40.0 A 28.8 A 24.0 A A 44.8 A 36.8 A 27.2 A 22.4 A A 43.2 A 35.2 A 25.6 A 22.4 A A 4.6 A 33.6 A 24.0 A.8 A A 40.0 A 33.6 A 24.0 A.8 A A 38.4 A 32.0 A 22.4 A 9.2 A A 38.4 A 30.4 A 22.4 A 9.2 A A 36.8 A 30.4 A.8 A 9.2 A A 35.2 A 28.8 A.8 A 7.6 A 38.4 A 35.2 A 28.8 A.8 A 7.6 A A 33.6 A 27.2 A 9.2 A 7.6 A A 33.6 A 27.2 A 9.2 A 7.6 A A 32.0 A 27.2 A 9.2 A 6.0 A A 32.0 A 25.6 A 7.6 A 6.0 A A 32.0 A 25.6 A 7.6 A 6.0 A A 30.4 A 25.6 A 7.6 A 6.0 A A 30.4 A 24.0 A 7.6 A 6.0 A A 30.4 A 24.0 A 7.6 A 6.0 A A 28.8 A 24.0 A 6.0 A 6.0 A A 28.8 A 22.4 A 6.0 A 6.0 A 24A 48A 72A 96A A tart Current (A) Table 3. D7-340X024N0-N, D7-342X024N0-N, D7-34DX024N0-D 24 A /hr /hr 4/hr /hr /hr Time (econds) 98.4 A 98.4 A 98.4 A 98.4 A 93.6 A A 98.4 A 98.4 A 98.4 A 76.8 A A 98.4 A 98.4 A 9.2 A 67.2 A A 96.0 A 9.2 A 8.6 A 57.6 A A 9.2 A 84.0 A 72.0 A 52.8 A A 86.4 A 79.2 A 62.4 A 48.0 A A 8.6 A 74.4 A 55.2 A 43.2 A A 79.2 A 69.6 A 50.4 A 40.8 A A 74.4 A 64.8 A 48.0 A 38.4 A 76.8 A 72.0 A 62.4 A 45.6 A 38.4 A 74.4 A 69.6 A 60.0 A 43.2 A 36.0 A A 67.2 A 55.2 A 40.8 A 33.6 A A 64.8 A 52.8 A 38.4 A 33.6 A A 62.4 A 50.4 A 36.0 A 3.2 A A 60.0 A 50.4 A 36.0 A 3.2 A A 57.6 A 48.0 A 33.6 A 28.8 A A 57.6 A 45.6 A 33.6 A 28.8 A A 55.2 A 45.6 A 3.2 A 28.8 A A 52.8 A 43.2 A 3.2 A 26.4 A 57.6 A 52.8 A 43.2 A 3.2 A 26.4 A A 50.4 A 40.8 A 28.8 A 26.4 A A 50.4 A 40.8 A 28.8 A 26.4 A A 48.0 A 40.8 A 28.8 A 24.0 A A 48.0 A 38.4 A 26.4 A 24.0 A A 48.0 A 38.4 A 26.4 A 24.0 A A 45.6 A 38.4 A 26.4 A 24.0 A A 45.6 A 36.0 A 26.4 A 24.0 A A 45.6 A 36.0 A 26.4 A 24.0 A A 43.2 A 36.0 A 24.0 A 24.0 A A 43.2 A 33.6 A 24.0 A 24.0 A

12 Effective May 7 How to select the correct size Figure 7e: 32 Amp Rated D7-340X032N0-N, D7-342X032N0-N, D7-34DX032N0-D 30 2 D7-32A /hr (25 C ) /hr (40 C ) 4/hr (40 C ) /hr (40 C ) /hr (40 C ) tart Time (s) 32A 64A 96A 28A 60A tart Current (A) Table 4. D7-340X032N0-N, D7-342X032N0-N, D7-34DX032N0-D 32 A /hr /hr 4/hr /hr /hr Time (econds) 3.2 A 3.2 A 3.2 A 3.2 A 3.2 A A 3.2 A 3.2 A 3.2 A 8.8 A A 3.2 A 3.2 A 24.8 A 83.2 A A 28.0 A 2.6 A 8.8 A 67.2 A A 2.6 A 2.0 A 96.0 A 60.8 A A 5.2 A 5.6 A 83.2 A 54.4 A A 8.8 A 99.2 A 73.6 A 48.0 A A 5.6 A 92.8 A 67.2 A 44.8 A A 99.2 A 86.4 A 64.0 A 4.6 A 2.4 A 96.0 A 83.2 A 60.8 A 4.6 A 99.2 A 92.8 A 80.0 A 57.6 A 38.4 A A 89.6 A 73.6 A 54.4 A 35.2 A A 86.4 A 70.4 A 5.2 A 35.2 A A 83.2 A 67.2 A 48.0 A 35.2 A A 80.0 A 67.2 A 48.0 A 32.0 A A 76.8 A 64.0 A 44.8 A 32.0 A A 76.8 A 60.8 A 44.8 A 32.0 A A 73.6 A 60.8 A 4.6 A 32.0 A A 70.4 A 57.6 A 4.6 A 32.0 A 76.8 A 70.4 A 57.6 A 4.6 A 32.0 A A 67.2 A 54.4 A 38.4 A 32.0 A A 67.2 A 54.4 A 38.4 A 32.0 A A 64.0 A 54.4 A 38.4 A 32.0 A A 64.0 A 5.2 A 35.2 A 32.0 A A 64.0 A 5.2 A 35.2 A 32.0 A A 60.8 A 5.2 A 35.2 A 32.0 A A 60.8 A 48.0 A 35.2 A 32.0 A A 60.8 A 48.0 A 35.2 A 32.0 A A 57.6 A 48.0 A 32.0 A 32.0 A A 57.6 A 44.8 A 32.0 A 32.0 A 2

13 How to select the correct size Application Paper AP039004EN Effective May 7 Table 5. ee also Figure 8 D7-340X04N0-N, D7-342X04N0-N, D7-34DX04N0-D 4 Amps Ramp Time /hr /hr 4/hr /hr /hr 55A 36A 33A 29A 27A 3 52A 33A 3A 29A 27A 4 50A 3A 28A 26A 24A 5 49A 29A 26A 24A 2A 6 46A 28A 25A 2A 8A 7 45A 26A 23A 9A 5A 8 44A 25A 2A 7A 3A 9 42A 24A A 5A A 42A 23A 8A 4A 8A 2 23A A 4A 98A 94A 3 2A 8A 2A 96A 9A 5 7A 5A 99A 92A 87A 9 2A A 93A 86A 80A A 0A 92A 84A 79A 23 9A 97A 89A 8A 73A 26 8A 96A 87A 79A 67A 29 6A 94A 85A 77A 62A 30 5A 94A 85A 76A 60A Table 7. ee also Figure D7-340X070N0-N, D7-342X070N0-N, D7-34DX070N0-D 68 Amps Ramp Time /hr /hr 4/hr /hr /hr 258A 226A 2A 24A 2A 3 253A 22A 27A 24A 2A 4 249A 27A 23A 9A 5A 5 246A 24A 2A 5A 0A 6 242A 22A 7A A 95A 7 24A 9A 3A 98A 9A 8 239A 8A A 94A 87A 9 236A 5A 98A 9A 83A 235A 4A 96A 89A 80A 2 4A 83A 73A 63A 55A 3 0A 80A 69A 59A 50A 5 94A 74A 64A 53A 44A 9 86A 67A 55A 42A 33A 85A 66A 53A 40A 3A 23 8A 62A 48A 35A 2A 26 78A 59A 45A 3A A 29 76A 57A 42A 27A 3A 30 74A 55A 40A 26A 0A Table 6. ee also Figure 9 D7-340X055N0-N, D7-342X055N0-N, D7-34DX055N0-D 55 Amps Ramp Time /hr /hr 4/hr /hr /hr 9A 83A 78A 73A 70A 3 4A 78A 76A 73A 70A 4 A 75A 72A 69A 66A 5 99A 73A 70A 66A 62A 6 96A 7A 67A 63A 58A 7 95A 69A 76A 60A 55A 8 93A 68A 62A 57A 52A 9 9A 66A 60A 55A 48A 90A 65A 59A 53A 45A 2 65A 48A 40A 32A 26A 3 62A 45A 37A 29A 2A 5 57A 4A 32A 23A 6A 9 50A 35A 25A 5A 8A 49A 34A 23A 3A 6A 23 46A 3A A 9A 98A 26 44A 29A 7A 6A 89A 29 42A 27A 5A 3A 83A 30 4A 26A 4A 2A 8A Table 8. ee also Figure D7-340X08N0-N, D7-342X08N0-N, D7-34DX08-N0-D 8 Amps Ramp Time /hr /hr 4/hr /hr /hr 25 C 25 C 40 C 40 C 40 C 307A 269A 262A 255A 25A 3 30A 263A 259A 255A 25A 4 296A 258A 254A 249A 245A 5 293A 255A 250A 245A 238A 6 289A 252A 246A 240A 232A 7 287A 249A 242A 235A 228A 8 284A 248A 239A 23A 223A 9 28A 245A 236A 228A 29A 280A 243A 234A 225A 24A 2 243A 29A 6A 94A 85A 3 238A 24A 2A 90A 79A 5 23A 8A 95A 82A 7A 9 222A 99A 84A 70A 59A 2A 97A 82A 67A 56A 23 25A 93A 77A 60A 44A 26 22A 90A 73A 56A 3A 29 9A 86A 69A 5A 22A 30 8A 85A 67A 50A 9A 3

14 Effective May 7 How to select the correct size Table 9. ee also Figure 2 D7-340X0N0-N, D7-342X0N0-N, D7-34DX0N0-D 99 Amps Ramp Time /hr /hr 4/hr /hr /hr 375A 329A 3A 32A 306A 3 368A 32A 37A 32A 306A 4 362A 36A 3A 304A 299A 5 359A 32A 305A 299A 29A 6 353A 308A 30A 293A 284A 7 35A 304A 296A 288A 278A 8 347A 303A 292A 282A 273A 9 344A 299A 289A 278A 267A 342A 297A 286A 275A 262A 2 297A 267A 252A 237A 226A 3 29A 262A 247A 232A 29A 5 282A 254A 238A 222A 9A 9 27A 243A 225A 7A 94A 269A 24A 222A 4A 9A A 235A 26A 96A 76A A 232A 2A 9A 6A A 228A 6A 85A 49A A 226A 5A 83A 46A Table. ee also Figure 3 D7-340X35N0-N, D7-342X35N0-N, D7-34DX35N0-D 34 Amps Ramp Time /hr /hr 4/hr /hr /hr 540A 482A 473A 440A 429A 3 532A 46A 462A 440A 429A 4 5A 450A 448A 424A 4A 5 5A 442A 437A 4A 395A 6 503A 436A 429A 400A 382A 7 497A 430A 42A 390A 370A 8 49A 425A 43A 38A 360A 9 486A 4A 407A 373A 335A 48A 46A 40A 365A 3A 2 434A 388A 379A 35A 272A 3 46A 37A 367A 344A 257A 5 398A 355A 329A 287A 23A 9 378A 337A 308A 264A 93A 374A 333A 304A 259A 85A A 323A 29A 245A 66A A 34A 28A 233A 50A A 307A 272A 223A 38A A 305A 269A 2A 34A Table 2. ee also Figure 4 D7-340X60N0-N, D7-342X60N0-N, D7-34DX60N0-D 60 Amps Ramp Time /hr /hr 4/hr /hr /hr 640A 57A 560A 52A 508A 3 63A 546A 548A 52A 508A 4 66A 533A 53A 503A 486A 5 606A 524A 58A 487A 468A 6 596A 56A 508A 474A 453A 7 589A 5A 498A 462A 439A 8 582A 504A 490A 452A 427A 9 576A 498A 482A 442A 397A 570A 493A 475A 433A 367A 2 54A 460A 449A 46A 322A 3 493A 440A 435A 408A 305A 5 472A 42A 390A 340A 274A 9 448A 399A 365A 33A 229A 443A 395A 360A 307A 29A A 383A 345A 290A 97A 26 4A 372A 332A 276A 78A 29 4A 364A 322A 264A 64A A 36A 39A 26A 59A Table 22. ee also Figure 5 D7-340X0N0-N, D7-342X0N0-N, D7-DX0N0-D 96 Amps Ramp Time /hr /hr 4/hr /hr /hr 800A 74A 700A 652A 636A 3 788A 683A 685A 652A 636A 4 770A 667A 664A 628A 607A 5 757A 655A 648A 609A 585A 6 745A 646A 635A 593A 566A 7 736A 637A 623A 578A 548A 8 727A 630A 62A 564A 533A 9 7A 622A 602A 553A 496A 73A 66A 593A 54A 459A 2 643A 575A 56A 5A 403A 3 66A 550A 543A 5A 38A 5 590A 526A 488A 425A 342A 9 560A 499A 457A 39A 286A 554A 493A 450A 384A 274A A 479A 432A 363A 246A A 465A 46A 345A 222A 29 53A 455A 403A 330A 4A A 452A 399A 326A 99A 4

15 How to select the correct size Application Paper AP039004EN Effective May 7 tart Time 30 (25 C),, 4, & (40 C) tarts per Hour 2 /hr 25 C /hr 40 C 4/hr 40 C /hr 40 C /hr 40 C 60A Maximum ramp 300% frame size (3 x 4 = 23A) start per hour (25 C) = 2 seconds start per hour (40 C) = seconds 4 starts per hour (40 C) = 7 seconds 70A 80A 90A 0A A A 30A 40A 50A tart Current Figure 8. 4A Rated D7-340X04N0-N, D7-342X04N0-N, D7-34DX04N0-D tart Time 30 (25 C),, 4, & (40 C) tarts per Hour 2 /hr 25 C /hr 40 C 4/hr 40 C /hr 40 C /hr 40 C 80A Maximum ramp 300% frame size (3 x 55 = 65A) start per hour (25 C) = 2 seconds start per hour (40 C) = seconds 4 starts per hour (40 C) = 6 seconds 0A A 40A 60A 80A tart Current 0A Figure 9. 55A Rated D7-340X055N0-N, D7-342X055N0-N, D7-34DX055N0-D 5

16 Effective May 7 How to select the correct size tart Time 30 (25 C),, 4, & (40 C) tarts per Hour 2 /hr 25 C /hr 40 C 4/hr 40 C /hr 40 C /hr 40 C 0A Maximum ramp 300% frame size (3 x = 65A) 4A) start per hour (25 C) = 2 seconds start per hour (40 C) = seconds 4 starts per hour (40 C) = 6 seconds 25A 50A 75A 0A 225A tart Current 250A Figure. 68A Rated D7-340X070N0-N, D7-342X070N0-N, D7-34DX070N0-D tart Time 30 (25 C),, 4, & (40 C) tarts per Hour 2 /hr 25 C /hr 40 C 4/hr 40 C /hr 40 C /hr 40 C 0A Maximum ramp 300% frame size (3 x 8 = 24A) start per hour (25 C) = 2 seconds start per hour (40 C) = seconds 4 starts per hour (40 C) = 7 seconds 25A 50A 75A 0A 225A 250A 275A 300A tart Current Figure. 8A Rated D7-340X08N0-N, D7-342X08N0-N, D7-34DX08N0-D 6

17 How to select the correct size Application Paper AP039004EN Effective May 7 tart Time 30 (25 C),, 4, & (40 C) tarts per Hour 2 /hr 25 C /hr 40 C 4/hr 40 C /hr 40 C /hr 40 C 50A Maximum ramp 300% frame size (3 x 99 = 297A) start per hour (25 C) = 2 seconds start per hour (40 C) = seconds 4 starts per hour (40 C) = 6 seconds 75A 0A 225A 250A 275A 300A 325A 350A tart Current Figure 2. 99A Rated D7-340X0N0-N, D7-342X0N0-N, D7-34DX0N0-D tart Time 30 (25 C),, 4, & (40 C) tarts per Hour 2 /hr 25 C /hr 40 C 4/hr 40 C /hr 40 C /hr 40 C 25A Maximum ramp 300% frame size (3 x 34 = 402A) start per hour (25 C) = 3 seconds start per hour (40 C) = seconds 4 starts per hour (40 C) = 9 seconds 50A 75A 0A 225A 250A 275A 300A 325A 350A 375A 400A 425A 450A 475A 500A 525A 550A tart Current Figure 3. 34A Rated D7-340X35N0-N, D7-342X35N0-N, D7-34DX0N0-D 7

18 Effective May 7 How to select the correct size tart Time 30 (25 C),, 4, & (40 C) tarts per Hour 2 /hr 25 C /hr 40 C 4/hr 40 C /hr 40 C /hr 40 C 50A Maximum ramp 300% frame size (3 x 6 = 483A) start per hour (25 C) = 3 seconds start per hour (40 C) = seconds 4 starts per hour (40 C) = 8 seconds 0A 250A 300A 350A 400A 450A 500A 550A 600A 650A tart Current Figure 4. 60A Rated D7-340X60N0-N, D7-342X60N0-N, D7-34DX6N0-D tart Time 30 (25 C),, 4, & (40 C) tarts per Hour 2 /hr 25 C /hr 40 C 4/hr 40 C /hr 40 C /hr 40 C 0A Maximum ramp 300% frame size (3 x 96 = 588A) start per hour (25 C) = 5 seconds start per hour (40 C) = seconds 4 starts per hour (40 C) = seconds 250A 300A 350A 400A 450A 500A 550A 600A 650A 700A 750A 800A tart Current Figure 5. 96A Rated D7-340X0N0-N, D7-342X0N0-N, D7-34DX0N0-D Eaton Electrical ector uperior Ave. Cleveland, OH 444 United tates 877-ETN-CARE ( ) Eaton.com 7 Eaton All Rights Reserved Printed in UA Publication No. AP EN / CC-2552 May 7 Eaton and PowerChain Management are registered trademarks of Eaton Corporation. All other trademarks are property of their respective owners.