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. 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)
Approximate
Motor Current
(Amps DC)
Plug-In Horsepower
Resistor® and Armature
Fuse Kit Catalog No.
Plug-In Horsepower
Resistor®
Value (Ohms)
Armature
Fuse Rating
(Amps)
1/100 1/50 .2 BR1000 1 .5
1/50 1/25 .3 BR0510 .51 .5
1/30 1/15 .33 BR0350 .35 .5
1/20 1/10 .5 BR0250 .25 .75
1/15 1/8 .8 BR0251 .25 1
1/12 1/6 .85 BR0180 .18 1.25
1/8 1/4 1.3 BR0100 .1 2
1/6 1/3 2 BR0101 .1 2.5
1/4 1/2 2.5 BR0050 .05 4
1/3 3/4 3.3 BR0035 .035 5
1/2 1 5 BR0025 .025 8
3/4 1
1
⁄2 7.5 BR0015 .015 12
1* 2* 10 BR0010 .01 15
1
1
⁄2* 3* 15 BR0006 .006 25
* Indicates an Auxiliary Heat Sink (Catalog No. BC143, or equivalent) must be used.
TABLE 5 – PLUG-IN HORSEPOWER RESISTOR® & ARMATURE FUSE KIT SELECTION