Custom power components for South Africa's grid, mining and OEM projects

Transformers, magnetic components and power modules built for high-reliability equipment programmes.

Built for local engineering realities

Grid resilience

Designed for voltage fluctuation, harmonics and long-life operation.

Mining-grade duty cycles

High reliability under shock, dust, heat and 24/7 runtime.

Renewable and EV infrastructure

Efficient power conversion for solar, storage and charging.

Engineering partner

Engineering partner since 1993

K.D Electronics (Zhuhai KangDing Electronics) has focused on high-reliability power components for over three decades. Our headquarters and factory are in Zhuhai, China with more than 30,000 square metres of production space and a team of 268 people.

We serve industrial automation, power utilities, renewable energy, EV charging, railway and OEM programmes worldwide with consistent quality and on-time delivery.

30M+Transformers per year
10M+Power units per year
42Automatic winding machines
4PCBA assembly lines
80%+Production staff with 5+ years' experience
30,000+ m²Manufacturing facility
Product architecture

Four lines for demanding power systems

Magnetic components including transformers and toroidal inductors

Magnetic Components

EIEEPQPOT
 Open-frame AC DC power module

AC/DC Power Modules

10W-600W85-264VAC
 Enclosed adapter power module and PCB boards

DC/DC and Special Power

1W-1kWIsolatedNon-isolated
 Smart grid and energy management controller

Smart Grid and Energy Management

PF ≥ 0.99RS485Modbus-RTU

What engineers need before the first call

Transformer range 0.5VA-50kVA | EI / EE / PQ / POT / Toroidal | Custom design support
Power module range AC/DC 10W-600W | DC/DC 1W-1kW | Open frame / Enclosed
Reliability features Short circuit / Overload / Over voltage / Over temperature protection | 100% full-load burn-in | Hi-Pot test | Advanced cooling design
Communications RS485 / Modbus-RTU | Optional CAN / Ethernet for energy products
Production lead time Samples 7-15 days | Mass production 2-4 weeks, subject to quantity
Compliance package CE / UL / ETL / GS / CQC | RoHS / REACH | Full technical documentation
Factory strength

Factory control from winding to final test

SMT production line with operators and assembly stationsSMT
AOI inspection equipment in production roomAOI
Automatic winding equipment and transformer winding processAutomatic Winding
Environmental reliability test chambersEnvironmental Test
Power electronics test instrumentsPower Test
PCBA assembly equipment
Soldering and line process detail
Coil and magnetic component process
Production control equipment
Clean electronics workshop with assembly stations
K.D Electronics Zhuhai factory buildingZhuhai Facility
Compliance and trust

Compliance and trust

ISO 9001

Certified quality management system for consistent production and traceability.

Original ISO 9001 certificate

ISO 14001

Systematic approach to environmental responsibilities and continuous improvement.

Original ISO 14001 certificate

IATF 16949

Process control and risk management for automotive-grade applications.

Original IATF 16949 certificate

CE / UL / ETL / GS / CQC

Complete compliance documents to support engineering and procurement review.

Original CE UL ETL GS and CQC compliance documents
South African projects can be prepared for SANS / NRCS documentation review with the buyer's local compliance path.
Application directions

Powering South African industries

Mining operation with heavy equipment

Mining operations

Transformer componentPOT magnetic coreAC/DC power moduleDC/DC control board
Utility metering and distribution infrastructure

Utility metering and distribution

Smart grid energy meterDIN rail meterAC/DC power moduleToroidal inductor
Solar panels and battery storage cabinets

Solar and storage systems

AC/DC power moduleDC/DC special power boardSmart energy management productToroidal inductor
EV charging infrastructure

EV charging infrastructure

Desktop power adapterDC/DC control boardAC/DC power moduleWall power adapter
Rail and industrial control infrastructure

Rail and industrial control

PQ transformerToroidal inductorDC/DC special power boardIndustrial control meter
Manufacturing flow

Inside the manufacturing flow

Winding, soldering, impregnation, AOI, ageing and final test. YouTube-ready placement for factory story and process.

Electronics manufacturing flow video preview
Request a technical RFQ

Send drawings, target output and operating environment