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PACMotion VFD Input/Output Chokes Installation Guide 

Section 3 

GFK-3185A 

August 2020 

 

Output Line Chokes 

Section 3:

 

Output Line Chokes 

3.1

 

Using Output Chokes 

AC Inverters use a fast switching pulse width modulation (PWM) technique to create a variable 
frequency AC Output to the connected motor. The fast switching of the output of the drive when 
connected with long motor cables results in a reflected voltage at the motor which can be up to three 
times the AC supply voltage, with a very fast rise time. Output chokes help to reduce this peak voltage, 
and increase the rise time, to reduce the stress applied to the motor insulation and prevent damage. 
Output chokes are recommended whenever any of the following conditions are met: 

 

The connected motor is not known to be suitable for use with a PWM output Inverter (as 
confirmed with the motor manufacturer) 

 

 

The motor cable length exceeds the maximum permissible motor cable length stated for the 
product in the relevant user manual 

o

 

Specified cable lengths apply to standard type copper shielded cable only 

o

 

For unshielded cables, the maximum length may increase by 50% 

o

 

Using a choke allows the maximum cable length to increase by 100% 

 

High capacitance motor cable is used, e.g. typically fire-resistant cables 

3.2

 

Dimensions 

 Open Type 

Part Number 

VFD 

Size 

Connection 

 

(mm) 

(mm) 

(mm) 

N1 

(mm) 

N2 

(mm) 

ØD 

(mm) 

Rate

Volts 

Rated 
Amps 

Inductance 

(mH) 

Weight 

(kg) 

IC866-OCH-008-603-20 

2.5 mm

2

 

95 

107 

61 

56 

43 

500 

Max 

2.0 

1.5 

IC866-OCH-012-603-20 

4 mm

2

 

125 

158 

76 

100 

55 

12 

1.7 

2.8 

IC866-OCH-030-603-20 

10 mm

2

 

155 

185 

66 

130 

57 

30 

0.5 

4.2 

IC866-OCH-075-603-20 

4 & 

35 mm

2

 

190 

223 

92 

170 

68 

75 

0.22 

8.6 

IC866-OCH-180-603-00 

5 & 

11 mm 

340 

292 

138 

248 

110 

10 x 18 

400 

Max 

180 

0.09 

32 

IC866-OCH-300-603-00 

9 mm 

380 

310 

180 

248 

139 

10 x 18 

300 

0.053 

48 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 10: IC866-OCH-008-603-20 through  
IC866-OCH-075-603-20 

 

Figure 11: IC866-OCH-180-603-00 through 
 IC866-OCH-300-603-00 

 

Summary of Contents for IC866-ICH-006-603-20

Page 1: ...Installation Guide GFK 3185A August 2020 PACMotion VFD Input Output Chokes IP20 and IP66 Versions INSTALLATION GUIDE ...

Page 2: ...hokes 2 2 1 Using Input Chokes 2 2 2 Dimensions IP20 Single Phase Versions 2 2 3 Mounting Dimensions IP66 Versions 4 2 4 Installation Schematic Diagram 4 Section 3 Output Line Chokes 5 3 1 Using Output Chokes 5 3 2 Dimensions Open Type 5 3 3 Mounting Dimensions Enclosed Versions 6 3 4 Installation Schematic Diagram 6 General Contact Information 7 Technical Support 7 ...

Page 3: ...ngency to be met during installation operation and maintenance The information is supplied for informational purposes only and Emerson makes no warranty as to the accuracy of the information included herein Changes modifications and or improvements to equipment and specifications are made periodically and these changes may or may not be reflected herein It is understood that Emerson may make chang...

Page 4: ...t the terminals and within the drive for up to 10 minutes after the disconnection of the electrical supply Wait until 10 minutes have elapsed after turning off the power supply before disconnecting the plug that supplies power to the drive It is the responsibility of the installer to ensure that the equipment or system into which the product is incorporated complies with the EMC legislation of the...

Page 5: ...overhead cranes On all installations where the supply impedance is low or the fault current is very high On all installations where the incoming power supply is prone to spikes dips notches or other disturbances Typically the input choke will provide a significant reduction in harmonic distortion on the incoming power supply and will reduce the overall current into the drive cover and back pages 2...

Page 6: ... 170 58 8 x 12 36 0 81 7 2 IC866 ICH 050 603 20 4 16 190 220 102 170 78 8 x 12 50 0 58 8 7 IC866 ICH 090 603 20 5 35 240 280 107 185 85 10 x 18 90 0 32 16 Figure 3 IC866 ICH 006 603 20 IC866 ICH 010 603 20 Figure 4 IC866 ICH 036 603 20 IC866 ICH 050 603 20 IC866 ICH 090 603 20 Part Number VFD Size Connection D2 mm L mm H mm B mm N1 mm N2 mm ØD mm Rated Volts Rated Amps Inductance μH Weight kg IC86...

Page 7: ...4 82 70 70 70 58 6 151 60 85 230 Max 16 1 83 1 0 IC866 ICH 025 201 60 2 10 90 75 84 84 72 6 151 60 85 25 1 17 1 3 IC866 ICH 006 603 60 1 2 5 115 88 74 80 60 5 5 x 7 151 60 85 600 Max 6 4 8 1 6 IC866 ICH 010 603 60 2 2 5 175 137 99 130 79 5 5 x 12 151 60 85 10 3 86 3 5 IC866 ICH 018 603 60 3 10 175 137 114 130 94 5 5 x 12 151 60 85 18 2 04 7 Figure 7 Dimensions of Enclosed Versions 2 4 Installation...

Page 8: ...motor cable length exceeds the maximum permissible motor cable length stated for the product in the relevant user manual o Specified cable lengths apply to standard type copper shielded cable only o For unshielded cables the maximum length may increase by 50 o Using a choke allows the maximum cable length to increase by 100 High capacitance motor cable is used e g typically fire resistant cables 3...

Page 9: ... L1 mm H1 mm B1 mm Rated Volts Rated Amps Inductance mH Weight kg IC866 OCH 008 603 60 1 2 5 115 85 74 80 60 5 5 x 7 151 60 85 600 Max 8 2 0 1 7 IC866 OCH 012 603 60 2 2 5 140 110 87 100 70 5 5 x 12 151 60 85 12 1 2 3 2 IC866 OCH 018 603 60 3 10 140 110 87 100 70 5 5 x 12 151 60 85 18 0 9 3 2 Figure 12 Mounting Dimensions Enclosed Versions 3 4 Installation Schematic Diagram Figure 13 Installation ...

Page 10: ...turns customercare cn mas emerson com Technical Support support mas apac emerson com Any escalation request should be sent to mas sfdcescalation emerson com Note If the product is purchased through an Authorized Channel Partner please contact the seller directly for any support Emerson reserves the right to modify or improve the designs or specifications of the products mentioned in this manual at...

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