MDB250 – Marine 250A Distribution Board
The MDB250 is a compact, 250 A marine distribution board for temporary vessel power distribution. Designed for short-notice mobilisation and open-deck installation, its IP66-rated 316L stainless-steel enclosure and configurable MCB circuits support offshore construction and project-support applications.
- Main bus 250 A; 10 kA for 1 second
- Operating voltage 3-phase, 230–440 V AC
- Enclosure 316L stainless steel; IP66
- Incoming circuit 1 × 250 A isolator
- Outgoing circuits Configurable 3-pole and 2-pole MCBs
- Cable entry Roxtec penetrations
Compact Temporary Marine Power Distribution
The MDB250 provides a compact and robust distribution point for temporary vessel power, offshore construction and project-support applications. Its 316L stainless-steel enclosure offers IP66 ingress protection and is suitable for open-deck installation.
The board includes a 250 A incoming isolator and configurable MCB outgoing distribution, with standard three-pole and two-pole circuit arrangements. Outgoing circuit quantities and ratings can be adapted to changing project requirements, subject to the board’s rated capacity and a protection study.
Built for Flexible Marine Hire
- 316L stainless-steel enclosure with IP66 ingress protection
- 250 A main bus with a 10 kA, 1-second short-circuit rating.
- Single 250 A incoming isolator.
- Configurable three-pole and two-pole MCB distribution.
- Roxtec cable penetration system.
- Spares package included in hire.
- Suitable for open-deck vessel installation.
Adaptable to Project Requirements
Outgoing MCB quantities and ratings can be reconfigured for project-specific equipment requirements, subject to the MDB250’s rated capacity and a protection study.
MDB250 Technical Specifications.
Electrical ratings, standard MCB circuit arrangements, enclosure details and physical specifications for the MDB250 marine distribution board.
Equipment data
- Model MDB250
- Description Marine 250A Distribution Board
- Manufacturer MJR Power & Automation
- Material 316L stainless steel
- Ingress protection IP66
- Rated voltage 3-phase, 230–440 V AC
- Main bus 250 A; 10 kA for 1 second
- Frequency 50/60 Hz
- Incoming 1 × 250 A isolator
- 3-pole standard 3 × 63 A; 3 × 32 A; 3 × 16 A; 3 × 10 A
- 2-pole standard 4 × 63 A; 4 × 32 A; 4 × 16 A; 4 × 10 A
- Cable entry Roxtec penetrations
- Weight 800 mm (H) × 600 mm (W) × 300 mm (D)
- Spares Spares package included in hire
Typical Applications for the MDB250
The MDB250 is intended for temporary vessel power distribution during short-notice mobilisation, offshore construction and project-support work.
- Vessel Mobilisation Temporary marine distribution for short-notice vessel mobilisation and open-deck installation.
- Offshore Construction A compact distribution point for temporary vessel power requirements supporting offshore construction.
- Project Support Configurable outgoing circuits for changing project equipment needs, subject to rated capacity and a protection study.
Contact the MJR hire team with your required operating voltage, equipment loads and three-pole or two-pole outgoing circuit needs. Any alternative arrangement is subject to rated capacity and a protection study.
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Request an Equipment Hire Quote
Tell us what equipment you need, your project location, required hire period and technical requirements. The MJR team will review your request and provide a suitable hire solution with availability, pricing and delivery details.
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