OceanSphere
Engines

Main Switchboard (LV)

medium 4 models total
Low-voltage main switchboards (380-690V) for vessel electrical distribution

4 manufacturers · 4 models

ABB

1
MNS
Up to 690V, 6300A · Electrical Power Distribution · LV Main Switchboard
Voltage
380-690V
Type
LV Main Switchboard
Common Failures & Inspection Points
  • ACB trip mechanism failure
  • Busbar connection loosening from vibration
  • Insulation breakdown
  • Metering CT failure
Service: Torque-check busbar connections annually. ACB maintenance per ABB schedule. Clean with dry air. IR scan for hot spots.
Spare Parts: Ersatzteile über ABB oder zugelassene Vertriebspartner. Lead time: 2-6 Wochen.

Hyundai Electric

1
HiMSEN Marine Switchboard
Up to 690V, 5000A · Electrical Power Distribution · LV Main Switchboard
Voltage
440-690V
Type
LV Main Switchboard
Common Failures & Inspection Points
  • PMS communication error
  • Generator breaker sync failure
  • Busbar overheating
Service: Integrated with HiMSEN engine control. Korean-built fleet standard. Annual insulation test and busbar check.
Spare Parts: Ersatzteile über Hyundai Electric oder zugelassene Vertriebspartner. Lead time: 2-6 Wochen.

Schneider Electric

1
Prisma SeT
Up to 690V, 4000A · Electrical Power Distribution · LV Main Switchboard
Voltage
380-690V
Type
LV Main Switchboard
Common Failures & Inspection Points
  • MCCB trip coil failure
  • Busbar support insulator cracking
  • Earth fault relay nuisance tripping
Service: Form 4 separation standard for marine. Clean and inspect annually. Replace MCCB at end of electrical life.
Spare Parts: Ersatzteile über Schneider Electric oder zugelassene Vertriebspartner. Lead time: 2-6 Wochen.

Siemens

1
SIVACON S8
Up to 690V, 6300A · Electrical Power Distribution · LV Main Switchboard
Voltage
380-690V
Type
LV Main Switchboard
Common Failures & Inspection Points
  • Withdrawable unit interlock failure
  • Busbar insulation aging
  • Relay malfunction
  • Ventilation fan failure
Service: Type-tested assembly. Withdrawable units for safe maintenance. Annual thermographic survey recommended.
Spare Parts: Ersatzteile über Siemens oder zugelassene Vertriebspartner. Lead time: 2-6 Wochen.