Permitted installation of braking resistors

The surfaces of the resistors become very hot if loaded with nominal power. Make sure that you select an installation site that will accommodate these high temperatures. For this reason, braking resistors are usually mounted on the control cabinet roof.

NOTICE

Braking resistors overheat.

Unauthorized installation might lead to an accumulation of heat in the braking resistor due to reduced convection. A tripping temperature contact or an overheated braking resistor can lead to a system standstill.

Adhere to the following minimum clearances:

- 200 mm to adjacent components and walls

- 300 mm to components/ceilings located above

Observe the following permitted mounting positions when installing the resistors:

• Grid resistor
• 

• Wire resistor
• 
• Flat type resistor
•