dV Sentry
TM
Installation Guide 208V
–
600V
Form: DVS-IG-E January 2018 REV. 003 mtecorp.com 8
Over Temperature Interlock
An over temperature interlock circuit should be used in conjunction with thermal switch to turn
off the drive to prevent filter damage due to abnormal operating conditions. The temperature
switch is normally closed and will open when an internal reactor temperature of 150°C is
reached. See Table 4-1 below for contact rating information and the drive user manual for
interconnection information.
Table 4-1: Over Temperature Switch
NC Switch
opens at 150 Deg. +/- 5 Deg. C
Current Amps
Voltage
Contact Load
6
120 AC
Resistive Loads
3
120 AC
Inductive Loads
3
240 AC
Resistive Loads
2.5
240 AC
Inductive Loads
8
12 VDC
Resistive Loads
4
24 VDC
Resistive Loads
MTE highly recommends the use of the over temperature switch to prevent damage to the filter
in rare instances of overheating from abnormal operating conditions
