Motor Control & Automation

Starting, speed control, dynamic protection and automation for industrial drives across East Africa

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Motor Control & Automation Solutions

Nairobi Power Engineers engineers and manufactures high-performance motor control centres (MCCs), direct-on-line (DOL) and star-delta starter panels, variable frequency drive (VFD) enclosures, and PLC/SCADA automation cabinets. Every assembly is designed around the exact driven load characteristics, starting torque curves, ambient thermal constraints, and prospective fault levels.

As official integration partners for premier switchgear brands including Lovato Electric, ABB, Schneider Electric and CHINT, we can review Form 2b to Form 4b assembly requirements, with applicable verification evidence and routine test records confirmed for the quoted assembly.

Equipment & Range Highlights

Motor Control Centres (MCC) — engineering concept

Form 2b to Form 4b

Conceptual motor control centres (mcc) scene; exact specifications vary.

Motor Control Centres (MCC)

Modular multi-tier switchboards with fixed, plug-in or withdrawable starter buckets up to 400 kW, integrated busbar chambers, and intelligent motor management relays.

Rating0.37 kW – 400 kW+

FormForm 2b / 3b / 4b

BusbarASTA Fault Tested to 50 kA

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Enclosed DOL starterPictured: LOVATO Electric M1P01812230B1 enclosed direct-on-line motor starter.

DOL, Star-Delta & Forward / Reverse Starters

Compare genuine enclosed DOL starters, three-contactor star-delta assemblies and mechanically interlocked forward/reverse units. The pictured LOVATO DOL reference has 230 V AC control; choose protection, enclosure and motor rating for the exact application.

Motor reference7.5 kW at 400 V

Overload range13–18 A

Control coil230 V AC

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Variable Frequency Drive (VFD) Panels — engineering concept

Lovato & ABB • Variable Speed

Conceptual variable frequency drive (vfd) panels scene; exact specifications vary.

Variable Frequency Drive (VFD) Panels

Enclosed variable speed drive cubicles featuring Lovato VLB3 / VLA1 and ABB ACS series drives with built-in EMC filters, line reactors, forced ventilation, and bypass contactors.

Range0.75 kW – 315 kW

ControlSensorless Vector / V/f

ProtocolsModbus RTU / Ethernet IP

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PLC, SCADA & BMS Automation Panels — engineering concept

Automation & SCADA

Conceptual plc, scada & bms automation panels scene; exact specifications vary.

PLC, SCADA & BMS Automation Panels

Custom industrial automation panels with programmable logic controllers (PLCs), high-resolution HMIs, remote telemetry I/O, and cloud IoT connectivity for water and manufacturing plants.

ProcessorsLovato / Siemens / ABB

HMI4.3" to 15.6" Colour Touch

TelemetryGSM / LoRa / MQTT

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Motor Control Engineering Reference

Parameter	Specification Standard
Manufacturing Standard	IEC 61439-1 & 2, IEC 60947-4-1, CE Certified
Rated Operating Voltage	400 / 415 V AC, 3-phase, 50 Hz (TN-S / TN-C-S)
Motor Power Spectrum	0.37 kW up to 400 kW low-voltage
Internal Segregation	Form 1, Form 2b, Form 3b, Form 4b (Type 2 to 7)
Enclosure Ingress Protection	IP31, IP42, IP54, IP55 up to IP66 outdoor stainless steel
Short-Circuit Withstand	25 kA / 1s up to 65 kA / 1s (ASTA / KEMA design verified)

Engineering & Build Highlights

Lovato BF series contactors tested to AC3 endurance standards for heavy industrial duty
Lovato ADX / ADXL soft starters with torque control for water hammer elimination
Custom IP54 / IP55 powder-coated sheet steel enclosures with filtered forced cooling
Comprehensive motor protection: thermal overload, phase sequence, voltage asymmetry, and PTC thermistor inputs
Complete factory testing: insulation resistance, dielectric withstand, and functional sequence verification
Front-access modular design allowing simple maintenance and future starter bucket additions

Target Applications & Sectors

Water booster & borehole pumping stationsTea & coffee processing processing linesHVAC air handling units & chillersMining & quarry aggregate conveyorsGrain silos & milling elevatorsWastewater treatment aeratorsManufacturing packaging & bottling plantsCommercial building booster pumps

Star-Delta is economical for motors starting with low load torque. Soft starters provide smooth mechanical acceleration and prevent water hammer in pumps without speed control. VFDs are required when continuous speed control, flow modulation, or high energy efficiency under partial load is necessary.

Yes. We integrate Lovato floatless level control relays (LVM series) with stainless steel electrode sensors or current-monitoring underload relays to detect pump cavitation and dry-well conditions instantaneously.

We manufacture MCCs in Form 2b, Form 3b, and Form 4b. Form 4b isolates busbars, functional starter units, and cable termination boxes from one another, enabling safe live maintenance of individual starter buckets.

Absolutely. We supply motor controllers and energy meters with native Modbus RTU/TCP, BACnet, Profinet, or Ethernet/IP communication ports for seamless SCADA and BMS integration.

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Conceptual engineering scenes illustrate applications. Manufacturer reference photos are identified separately. Confirm exact models, dimensions and ratings before ordering.