KB Electronics KBMM-225D User Manual
Page 22
10 RECOMMENDED HIGH VOLTAGE DIELECTRIC WITHSTAND TESTING (Hi-Pot Testing)
Testing agencies such as UL, CSA, etc., usually require that equipment undergo a hi-pot test. In order to prevent
catastrophic damage to the control, which has been installed in the equipment, it is recommended that the follow-
ing procedure be followed. A typical hi-pot test setup is shown in Figure 13 on page 23. Note: All controls have
been factory hi-pot tested in accordance with UL requirements.
WARNING! When performing the hi-pot test, disconnect the AC power.
22
90 - 130 Volt DC Motors
(HP)
180 Volt DC Motors
(HP)
Plug-In Horsepower Resistor®
Value (Ohms)
Part No.
1/100 – 1/50
1/50 – 1/25
1
9833
1/50 – 1/30
1/25 – 1/15
.51
9834
1/30 – 1/20
1/15 – 1/10
.35
9835
1/20 – 1/12
1/10 – 1/6
.25
9836
1/12 – 1/8
1/6 – 1/4
.18
9837
1/8 – 1/5
1/4 – 1/3
.1
9838
1/4
1/2
.05
9839
1/3
3/4
.035
9840
1/2
1
.025
9841
3/4
1
1
⁄
2
.015
9842
1*
2*
.01
9843
1
1
⁄
2
*
3*
.006
9850
* Indicates an Auxiliary Heat Sink (Part No. 9861, or equivalent) must be used to achieve rating indicated.
TABLE 6 – PLUG-IN HORSEPOWER RESISTOR® SELECTION
!