Electrical Components

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OEM Electrical Components & Parts

We supply a wide selection of high quality electrical parts and genuine components. From controllers to safety components, we provide the reliable parts you need to keep your backup power running safely.

Our electrical components are built to last and are fully compatible with all major generator and engine brands.

Whether you are building a new system, upgrading a panel, or repairing a generator in the field, we have the stock ready to keep your operations running smoothly across South Africa and the Sub-Saharan region.

Get in touch with our sales team to get your obligation free quote today!

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Need a fast, competitive quote for electrical parts?

Simply send us a text or upload a clear photo of the controller, AVR, switch, relay, or part you need to replace. Our team will instantly check our stock, confirm the exact match, and send a competitive, obligation free quote straight back to you.

SmartGen Controllers

Serves as the brain of the generator, providing automated monitoring, remote telemetry, and fault data logging.

StromerPower ATS

Governs autonomous, grid-independent utility sensing and manages smooth mains-to-generator power load switching.

Generator AVR

Alternator automatic voltage regulators engineered to safeguard voltage stability and shield sensitive electronics.

Circuit Relays

Handles low current control signals to safely switch high-current generator sub-circuits and other loads.

SmartGen Battery Chargers

High efficiency switch-mode chargers developed to maintain maximum battery cranking amps via active trickle charging.

Stop Solenoid

Heavy duty pull/push electro-mechanical actuators designed to provide instantaneous physical fuel cutoff safety actuation.

Priming Electronic Fuel Pumps

Low pressure electric supply pumps engineered to bleed air bubbles and prime the fuel line infrastructure prior to cranking.

SmartGen Block Water Heater

Thermostatically controlled fluid pre-heaters to guarantee instantaneous starting capability in cold climates.

Mobile Alert Systems (GSM)

Cellular telemetry modules engineered to transmit real time critical fault alerts and operational data.

Circuit Breakers

Industrial grade overcurrent and short circuit protection switches engineered to isolate faults safely.

Generator Batteries

High capacity starter batteries built to deliver reliable high currents under extreme temperature variations.

Speed Controllers

Electronic governors engineered to adjust engine throttle positioning in real-time for perfect frequency stability.

Emergency Stop Buttons

Heavy duty, high visibility slap-lock push buttons developed for isolation of generators.

Ignition Switches

Key switch units designed for secure, manual engine crank initialisation and power system control.

We stock a wide range of Electrical Parts

We pride ourselves on the quality of our electrical parts for all of our generator and engine brands.

We carry electrical parts from market leaders SmartGen.

  • Generator Controllers
  • Circuit Breaker
  • Batteries
  • Speed Controllers
  • Stop Solenoid

Generator King is a one-stop electrical parts shop for service technicians.

FREQUENTLY ASKED QUESTIONS

What are the warning signs that a generator's Automatic Voltage Regulator (AVR) is failing?

A malfunctioning AVR usually gives clear warning signs before failing completely. The most common indicators include erratic voltage fluctuations on your control panel dashboard, lights flickering across your building grid under stable engine loads, or the generator shutting down entirely due to an "Over-Voltage" or "Under-Voltage" fault code. If your alternator fails to produce any output voltage when the engine cranks up, a burned-out or uncalibrated AVR is often the primary culprit.

Why is a high-quality battery charger critical for standby generators?

Standby generators sit idle for days or weeks at a time, relying entirely on an automated DC smart trickle charger to keep their cranking batteries fully charged. Low-grade chargers can easily overcharge a battery, boiling away its electrolyte fluid and permanently damaging the cells. This leads to sudden battery failure, and a generator that won't start right when a grid power outage occurs. The industrial battery chargers supplied by SDECfeature an intelligent multi-stage charging profile that automatically monitors voltage thresholds, safeguarding battery health and ensuring maximum cranking torque when an emergency start is triggered.

Can I install a new SmartGen or Deep Sea digital controller myself?

While physical installation into the canopy fascia panel is a simple mechanical process, configuring and wiring the control module requires a certified generator technician or qualified electrical contractor. Modern system controllers interface directly with your engine’s safety sensors, fuel solenoids, and electronic speed governors. The parameters, such as oil pressure shutdown limits, crank timers, and alternator phase monitoring—must be precisely programmed to match your specific generator specifications. Incorrect wiring or uncalibrated thresholds can permanently damage both the controller and the engine.

What causes a generator stop solenoid to burn out prematurely?

A fuel stop solenoid (or shut-off valve) uses a dual-coil internal mechanism: a high-current "pull" coil to initially open the fuel rail, and a low-current "hold" coil to keep it open while the engine runs. If your generator's control panel timing circuit is uncalibrated, or if the mechanical linkage sticks and prevents the solenoid from closing fully, the high-current pull coil will remain active for too long. This quickly overheats the component, causing the internal copper windings to burn out and leaving the generator unable to either start or shut down safely.

How do I troubleshoot a generator that cranks normally but refuses to fire up?

If the starter motor cranks the engine energetically but it fails to catch, the issue is almost always a breakdown in the DC electrical fuel delivery or air induction control path. First, check your control panel for active diagnostic codes. Then, verify that the fuel stop solenoid is physically clicking open when the crank timer initialises. Finally, check your electronic governor or actuator to confirm it is pulling the mechanical fuel lever into the starting position. Our engineering technical team is available on WhatsApp or email to help you cross-reference fault readings and pinpoint the exact failed component.

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