Siemens SIPROTEC 4 7XT34 Produktinformation Seite 32

6.2 Ring-type Lug Variant 7XT3400-0xB00
6.2.1 Overview
The device terminals consist of combinations of 4-pole voltage modules.
✧ Ground the device at the grounding areas with low resistance and low
inductance.
✧ Establish the connections via the screwed connections. Pay attention to the
labeling, permitted conductor cross-sections and bending radii.
✧ The terminal screws are screwed tight upon delivery. Completely unscrew the
terminal screws at the connecting points (see Figure 6-3).
✧ Subsequently, tighten the ring-type lug cables with the terminal screws
observing the permitted tightening torques.
Terminal Screw
Maximum tightening torque:
Screwdriver tip width:
1B2
1B1
Figure 6-3 Ring-type Lug Variant
10
B A
2 4 2 4
1
3
1 3
1B3 1B4 1A1 1A2
SIPROTEC 4, 20-Hz Band-pass Filter 7XT34, Product Information
1.8 Nm (according to IEC 947-1)
7.0 mm (0.28 inch)
2 4
1A4
1
3
1A3
Terminal screws
Terminal ring-type lug cable
(provided by customer)
C53000-B1174-C130-4, Edition 01.2013