ABB UniGear ZS1 User Manual

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4. Panel design and equipment
Figure 10: Circuit-breaker compartment, open Figure 11: Push button for mechanical ON/OFF breaker
operation with the door closed (on request)
Figure 12: View of the push rod extension swung out by
the knob at the front, with the withdrawable circuit-
breaker part in service position and the door open
Withdrawable part in test position, control wiring
plug connector open
1 Control wiring plug
2 Withdrawable part
3 Square spigot
If the withdrawable part is in the service position,
operation is carried out using the knob which
swings a push rod extension out.
1 Mechanical pushbutton
2 Turning knob
1 Swivelling push rod
Figure 13: Current sensors KECA 80C165 mounted in the
circuit breaker compartment in UniGear ZS1 Digital
Figure 14: Current sensors KECA 80C104 mounted in the
circuit breaker compartment in UniGear ZS1 Digital
Figure 15: Voltage sensors KEVA 17.5B20 mounted in the
cable compartment in UniGear ZS1 Digital

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