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ABB
UniGear ZS1
The ABB UniGear ZS1 is an air‑insulated medium voltage (3.3–12 kV) main switchboard for marine applications, featuring a compact modular layout and arc‑resistant design.
Up to 12 kV, 4000A
Capacity
Electrical Power Distribution
Medium
Components & Design
Component data being added…
Technical Data
voltage
3.3-12 kV
type
AIS MV Switchboard
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Common failures & inspection points
●Circuit breaker mechanism failure
●Busbar insulation degradation
●CT/VT calibration drift
●Arc flash from contamination
Service & Maintenance
Annual insulation resistance test. Clean busbars at drydock. Breaker mechanism service every 5 years. Arc-resistant design to IEC 62271.
Suppliers & Spare Parts
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Equipment Model #1092
· ✓ still in production