Electrical connection
6.2 Connecting the machine
1LA5/6/7/9, 1LG4/6, 1MA6/7, 1MB..1/2/3/4/5 - SH 63 ... 355
Operating Instructions, 06/2018, A5E44455710A
75
After proper installation, verify that the minimum air clearances between non-insulated parts
are maintained. Be aware of any protruding wire ends.
Table 6- 2 Minimum air clearance dependent on rms value of the alternating voltage
U
rms
Rms value of the alternating
voltage
U
rms
≤ 250 V 3.0 2.5 5.0
Values apply at an installation altitude of up to 2000
m.
When determining the required minimum air clearance, the voltage value in the table may be i
n-
creased by a factor of 1.1, so that the rated input voltage range is taken into account during gen-
Internal equipotential bonding
The internal equipotential bonding between the grounding terminal in the terminal box, the
terminal box components and the machine enclosure is ensured via metallic contact, a
copper braided strip or a stranded wire.
Cable glands
Cable glands with (sheet metal) nuts (EN 50262)