IMO SD1 Series - Page 167

SD1 Series Inverters Optional Peripheral Accessories
-162-
 The materials near the braking resistor must be non-flammable. The
surface temperature of the resistor is high. Air flowing from the resistor is of
hundreds of degrees Celsius. Protect the resistor against contact.
SD1 se
ries inverters need only external braking resistors.
PB
External
brake
resistor
SD1
(+)