Siemens NXPLUS C User Manual

802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 127/293
Installation
15.7 Installing busbar voltage transformers
The voltage transformers are delivered separately. For installation, the busbars must be
mounted and accessible from the front. If required, remove any mounted low-voltage
compartments.
INFORMATION
For the following panel types, a lower voltage transformer frame (229 mm) must be mounted:
• Circuit-breaker panel (450 mm)
• Auxiliary transformer panel
Fig. 87: Voltage transformers mounted
on 1250 A busbar
Fig. 88: Voltage transformers with lower voltage
transformer frame
Fig. 89: Voltage transformer mounted on the busbar (view from the front)
①
Voltage transformer
⑧
Centering nut (tightening torque: 10 Nm)
②
Storage box
⑨
Hexagon nut M12* (tightening torque: 50 Nm)
③
Voltage transformer frame
⑩
Conical spring washer *
④
Nut-and-washer assembly M8 / bolt M6 with
plain washer
1
⑪
Contact half-shell *
⑤
Plain washer (DIN EN ISO 7093-1-8)
⑫
Threaded stud M12/M16 (tightening torque: 10 Nm)*
⑥
Bolt-and-washer assembly M8x20
⑬
End adapter/cross adapter
⑦
Cast-resin cone of voltage transformer * Component pre-assembled at the end adapter/cross
adapter
1
For panel types LS 450 mm and auxiliary transformer panel

Siemens NXPLUS C Specifications

General

Brand	Siemens
Model	NXPLUS C
Category	Circuit breakers
Language	English