Product detail
Type-tested Main Distribution Boards for commercial and industrial power intake — ACB/MCCB incomers, bus sections, metering chambers, and outgoing feeders rated up to 6300A with prospective fault levels to 100kA.
Nairobi Power Engineers designs and manufactures the assembly around site duty, prospective fault level, installation access, service continuity, cable entry and maintainability. The supply can be configured with ABB, Schneider Electric or CHINT equipment according to duty, lead time and lifecycle support.
✓ACB incomer compartments rated 630A to 6300A with electronic trip units
✓MCCB feeder sections with selective coordination and cascading studies
✓Bus section and bus coupler arrangements for dual-source configurations
✓CT metering chambers with multifunction analysers and BMS gateways
✓Selectivity study and discrimination cascade
✓Busbar temperature rise calculation to IEC 61439-1
✓Short-circuit withstand verification
✓Routine test certification and FAT documentation
OEM selection basis
MDB designs are documented with single-line diagrams, busbar sizing, segregation form, CT-metering layout, cable-entry drawings and routine verification records.
Technical detail library
Main-board rows only: ACB incomers, MCCB feeders, busbar chambers, CT metering and cable-entry hardware. Open the cards for ratings, source basis, build options and direct contact links.
Engineering Calculator
Enter parameters for real-time IEC/KPLC-standard sizing. Results update dynamically.
Sizing results
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* For reference only. NPE engineering verifies configurations prior to build.
Our Main Distribution Boards (MDB) solutions are custom-engineered and assembled locally at our Baricho Road workshop in Nairobi. A standard build includes high-quality modular enclosures, premium copper busbars (rated for local environmental conditions), type-tested circuit breakers or control elements from trusted global partners (ABB, Schneider Electric and CHINT), and comprehensive routine test certifications before delivery.
All assemblies comply with KEBS and EPRA regulations. You should confirm the required operational voltage (typically 415V three-phase or 240V single-phase in Kenya), rated current, prospective fault levels (e.g., 35kA or 50kA as per KPLC system requirements), form of separation (up to Form 4b), IP rating (IP31 indoor / IP54 for dust-heavy sites), and cable entry orientation (top or bottom entry).
NPE starts with the single-line diagram, load schedule and operating sequence, then selects the circuit protection path, device families, enclosure format, controls and testing requirements.
Send the single-line diagram, load schedule, incoming supply details, fault level if known, preferred OEM brand, cable entry direction, installation environment and delivery location.
Yes. NPE can quote ABB, Schneider Electric, CHINT or a mixed-OEM architecture according to rating, availability, monitoring requirement, lifecycle support and budget.
Yes. Metering, alarms, Modbus, Ethernet, BMS contacts, SCADA points and commissioning checks can be included where the selected product family supports them.
Product enquiry
Use the calculators for a first-pass engineering check, then send us the SLD and load schedule for a project-ready selection.
Electrical service you can count on
When main distribution boards equipment fails, you need fast, reliable help from experienced engineers. We offer around-the-clock emergency support across Nairobi and East Africa — keeping your plant safe and powered, day or night. Whether it is an urgent breakdown or a scheduled repair, our team is ready to respond whenever you need us.
Main Distribution Board costs vary significantly depending on several key factors. Here is what you need to know to make informed decisions and avoid unexpected expenses.
The price of a Main Distribution Board package depends on the load schedule, fault level, enclosure form and IP rating, plus the OEM equipment you specify. Site conditions and delivery timelines also move the number.
Our engineers issue itemised quotations covering equipment, assembly, factory testing and delivery — no hidden fees. You know exactly what to expect before any work begins.
Scheduled inspection, thermographic surveys and torque checks catch small issues early, helping you avoid major repairs. Planned maintenance extends system life and protects uptime.
Whether it is a scheduled upgrade or an urgent call, our Nairobi workshop at Baricho Road responds quickly and gets the job done right — minimising downtime and keeping you safe.
If you are ever unsure or feel unsafe around an energised assembly, do not take chances — call a licensed engineer. Safety always comes first. Feel free to contact us or give us a call.
+254 0737-944-014