ABB UniGear ZS1 Instruction Manual

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5.5 Fixing of the panels
Fit and screw down the lids.
• Align the switchgear panels on the floor frame for correct positioning and vertical alignment
(deviations of the panel edges from the vertical must not exceed 2 mm, especially at the front) and
bolt the panels together (figure 63). It is advisable to start from the centre when assembling
switchgear with more than ten panels.
The junction points where you have to fix the panels are the followings:
- Nr.6 in the front side (A-B-C-D-E-F).
- Nr.4 in the middle part (L-M-N-O).
- Nr.5 in the rear side (G-H-I-J-K).
The nuts on the carpentry are already fixed on the right side of the panel (except in the middle part);
on the left side there is the empty space where the screws are to be fixed.
The screws needed are the followings:
- 10x30 screws (complete with M10 washer) for front and rear side.
- 10x35 screws (complete with washer and M10 nuts) for middle part.
Figure 63: View of the fixing points

ABB UniGear ZS1 Specifications

General

Rated Voltage	up to 24 kV
Rated Current	up to 4000 A
Frequency	50/60 Hz
Rated Short-Circuit Breaking Current	up to 50 kA
Rated Peak Withstand Current	up to 125 kA
Insulation	Air-insulated
Type of Switchgear	Metal-clad
Rated Short-time Withstand Current	up to 50 kA for 3s
Internal Arc Classification	IAC AFLR
Protection Degree	IP4X
Busbar System	Single and double busbar
Type Tested Assembly	IEC 62271-200
Dimensions	Varies depending on configuration
Weight	Varies depending on configuration