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Supply
Isolator and short-circuit protection
DOL & Star-Delta Starter Panels
Product detail
Product snapshot
DOL & Star-Delta Starter Panels
Simple, rugged starter panels for pumps, fans, compressors and conveyors.
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Starter
DOL, star-delta or reversing contactors
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Motor
Overload, dry-run and permissives
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Feedback
Run, trip, fault and level signals
Starter duty
DOL, star-delta or reversing sequence
Typical loads
Boreholes, boosters, fans, compressors and conveyors
Protection
Overload, phase failure, dry-run and permissives
Controls
Selector switches, timers, lamps and terminal schedule
Read more
Rugged DOL, reversing and star-delta starter panels for boreholes, booster pumps, irrigation, HVAC fans, compressors and conveyors across Kenya.
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.
Starter-panel designs are documented with FLC calculations, overload settings, control sequence, interlocks, selector switches, pump protection inputs and labelled terminal schedules.
- Direct-on-line starter panels for smaller motors and simple pump duties
- Star-delta starter panels for reduced starting current on medium motors
- Reversing starter panels for hoists, conveyors and process equipment
- Float switch, pressure switch, timer, phase-failure and local/remote control integration
- Motor kW, FLC, starting current and permissible voltage dip
- Control voltage, selector logic, overload class and restart behaviour
- Cable route, gland plate, IP rating and indoor/outdoor mounting conditions
- Pump protection inputs including dry-run, high-level, low-level and pressure interlocks
OEM selection basis
ABB, Schneider Electric and CHINT fit where they genuinely belong.
- ABB AF contactors, overloads and motor-protection devices for demanding pump panels.
- Schneider TeSys contactors, thermal overload relays and control gear for contractor-standard starters.
- CHINT NC/NX contactors, relays and protection for cost-effective borehole and irrigation work.
- NPE wiring, labelling and test routines built around local service teams.
Technical detail library
Product Range & Target Markets, Switchboard Features and Options:
Starter rows only: DOL, star-delta, reversing, overload, phase-failure and pump-control interface hardware. Open the cards for ratings, source basis, build options and direct contact links.
Engineering Calculator
Instant Technical Sizing
Enter parameters for real-time IEC/KPLC-standard sizing. Results update dynamically.
Sizing results
Estimated FLA
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Main Contactor
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Overload Range
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Suggested Frame
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* For reference only. NPE engineering verifies configurations prior to build.
Frequently Asked Questions
What is included in DOL & Star-Delta Starter Panels?
Our DOL & Star-Delta Starter Panels 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.
Which standards and ratings should be confirmed?
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).
How does NPE choose the product architecture?
NPE starts with the single-line diagram, load schedule and operating sequence, then selects the motor control path, device families, enclosure format, controls and testing requirements.
What information does NPE need to quote DOL & Star-Delta Starter Panels?
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.
Can NPE supply ABB, Schneider Electric and CHINT options?
Yes. NPE can quote ABB, Schneider Electric, CHINT or a mixed-OEM architecture according to rating, availability, monitoring requirement, lifecycle support and budget.
Can the system include monitoring and remote signals?
Yes. Metering, alarms, Modbus, Ethernet, BMS contacts, SCADA points and commissioning checks can be included where the selected product family supports them.
Product enquiry
Do you have a DOL & Star-Delta Starter Panels enquiry? Get in touch...
Use the calculators for a first-pass engineering check, then send us the SLD and load schedule for a project-ready selection.
Built and supported in Nairobi
Every DOL and star-delta starter panel NPE builds is sized from the motor full-load current, assembled and tested at our Baricho Road workshop, and handed over with the drawings and test records your electrician expects. Use the enquiry routes above for a sized quotation, or the form alongside to schedule an engineer.
24/7 Emergency Support
Electrical service you can count on
When DOL and star-delta starters 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.
Cost and Estimates
DOL / Star-Delta starter costs vary significantly depending on several key factors. Here is what you need to know to make informed decisions and avoid unexpected expenses.
What Affects the Cost?
The price of a DOL / Star-Delta starter 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.
Get a Detailed Estimate
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.
Smart Maintenance
Scheduled inspection, thermographic surveys and torque checks catch small issues early, helping you avoid major repairs. Planned maintenance extends system life and protects uptime.
Fast, Reliable Response
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.
When in doubt, put safety first
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 0737-944-014How to stay safe during an electrical emergency
Overheating or Burning Smell
Isolate the supply if it is safe to do so, keep people clear of the panel and call us immediately. A burning smell around an enclosure usually indicates a loose termination or an overloaded circuit and must never be left running.
Nuisance Tripping
Repeated tripping is a symptom, not the fault. It usually points to overload, an earth leakage path or a device sized incorrectly for the duty. We test the circuit, verify discrimination and correct the root cause rather than resetting the device.
Safe Isolation and Access
Only competent, authorised personnel should open a live assembly. Follow lock-off and permit-to-work procedures, and use the correct PPE and rated test equipment for the fault level of the installation.
Routine Inspection Intervals
We recommend periodic inspection and testing in line with the KS/IEC regime for your installation category, with thermographic scanning on critical boards. We can hold the schedule for you and report against it.