Route The Cable With An Appropriate Loop So That Water Can Drip Off; Terminal Designation; Table 6-1 Terminal Markings Using The 1U1-1 As An Example; Figure 6-1 Water Drip Loop - Siemens SIMOTICS HV C Operating And Installation Instructions

Electrical connection
6.2 Preparation
● Requirements according to IEC/EN 60204‑1
● Requirements according to GB 3836.15
6.2.2

Route the cable with an appropriate loop so that water can drip off

● In case of high humidity or when installed outside, water drops can move along the cable
6.2.3

Terminal designation

According to IEC / EN 60034‑8, the following basic definitions apply to the terminal markings
for 3-phase machines:
Table 6-1
1
x
56
jacket and enter the motor through the cable entry and cable gland.
If you route the cable with an appropriate loop then water doesn't enter the terminal box,
but simply drips off.
Figure 6-1 Water drip loop
Terminal markings using the 1U1-1 as an example
U 1 - 1 Marking
Index for pole assignment for pole-changing machines where applicable. A lower
index signifies a lower speed. Special case for split winding.
x Phase designation U, V, W
x Index for winding start (1) or end (2) or if there is more than one connection per
winding
x Additional indices for cases in which it is obligatory to connect parallel power feed
cables to several terminals with otherwise identical markings
SIMOTICS HV C 1NB1402-2AA84-4CA0-Z
Operating Instructions 06/2018