Siemens SINAMICS S120 Manual page 516

Options
8.40 L61/L62, L64/L65, braking units
Safety information
NOTICE
Maintain ventilation clearances
A cooling clearance of 200 mm must be maintained on all sides of the component (with
ventilation grilles).
NOTICE
Hot surfaces
The surface temperature of the braking resistors may exceed 80 °C during operation.
Risk of fire and damage to equipment due to short-circuit/ground fault
The cables to the braking resistor must be routed so that a ground fault or short circuit can
be ruled out. A ground fault can result in fire with the associated smoke.
 Protect the cables from mechanical damage.
 Comply with local installation regulations that enable this fault to be ruled out.
In addition, apply one of the following measures:
 Use cables with double insulation.
 Maintain adequate clearance, using spacers, for example.
 Route the cables in separate cable ducts or pipes.
514
WARNING
Cabinet Modules
Manual, 03/2013, A5E03263538A