Siemens 400 V / 210...590 A AFE inverter construction type G, Door/roof openings, Partitions

Installation 01.2004

5.2.3AFE inverter (construction type G)

Mounting surface

H h

	c	b	a
350	a
		B
Side view		Front view

Cutouts for

M8 screw

Dimen-

sions Type

[mm]G

a119

b270

c25

B508

H 1450

h 1375

Fig. 5-4 Mounting dimension, construction type G

Partition measures	Door/roof openings
	An underpressure is created in the openings of the cabinet doors due to
	the flow of air. This is dependent on the volumetric flow and the
	hydraulic cross-section of the openings.
	The flow causes a build-up (over) pressure in the roof or in the top
	cover.
	As a result of the difference in pressure between the overpressure at
	the top and the underpressure at the bottom of the cabinet, a flow of air
	is created inside the unit, a so-called arcing short-circuit. This can be
	stronger or weaker depending on the volumetric flow and the door/roof
	opening cross-section.
	As a result of the flow inside the unit, air which is already pre-heated
	enters the heat sinks which causes an excessively high component
	temperature rise. In addition, a different, more unfavourable operating
	point is set for the fan.
	If the units are operated with an arcing short-circuit, this will result in the
	failure of the units or in their destruction!
	An arcing short-circuit must be prevented by the provision of
	partitions.
	The switch cabinets adjacent to the inverter cabinets must also be
	taken into consideration in this case.

5-4	6SE7087-6CX86-2BA1 Siemens AG
	Operating Instructions SIMOVERT MASTERDRIVES AFE