Minimum Air Clearances; Screw-Type Connections With Connecting Thread; Tightening Torques; Cable Entries, Sealing Plugs And Thread Adapters - Siemens SIMOTICS SD 1LE5 Operating Instructions Manual

Electrical connection

6.3 Tightening torques

6.2.2.7

Minimum air clearances

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
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 in-
creased by a factor of 1.1, so that the rated input voltage range is taken into account during gen-
eral use.
6.2.3

Screw-type connections with connecting thread

Cable glands with connecting thread in the terminal box (EN 50262)
6.3 Tightening torques
Note the information in Chapter Tightening torques (Page 125).
6.3.1

Cable entries, sealing plugs and thread adapters

Note the following when mounting:
• Avoid damaging the cable jacket.
• Adapt the tightening torques to the cable jacket materials.
66
Minimum air clearance dependent on rms value of the alternating voltage U
Rms value of the alternating voltage U
≤ 250 V
≤ 500 V
≤ 630 V
≤ 1000 V
Minimum air clearance
rms
② O ring
1LE5, 1PC4 shaft height 315/355
Operating Instructions, 10/2020, A5E41454666A
rms
mm
3.0
3.0
5.5
8.0