⚡ Electrical System

Electrical System Materials — What to Specify & Source

A residential electrical system carries power safely from the meter to every outlet, light and appliance. This hub walks through cable, distribution boards, breakers, switches, sockets, lighting and smart wiring — and the load, rating and protection details you must confirm before ordering.

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On this page: Electrical Cable Distribution Box Circuit Breaker Switch Socket Lighting System Smart Home Wiring Solar Electrical

Electrical Cable

Insulated conductors that distribute power through the home.

PVC Insulated CableXLPE CableFlexible CableFire-Resistant Cable

Key specs to confirm

  • Conductor size by load and run length (voltage drop)
  • Insulation type and temperature rating
  • Copper vs. aluminium
  • Fire performance where required

Specification dimensions are general engineering guidance — confirm exact values against your project drawings and local code.

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Distribution Box

Consumer unit / board that splits supply into protected circuits.

Consumer UnitMCB Distribution BoardMetal Enclosure

Key specs to confirm

  • Number of ways vs. circuit count + spares
  • Main switch / isolator rating
  • Enclosure material and IP rating
  • Busbar and incomer sizing

Specification dimensions are general engineering guidance — confirm exact values against your project drawings and local code.

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Circuit Breaker

Protective devices that trip on overload, fault or leakage.

MCBRCCBRCBOMCCBSurge Protector

Key specs to confirm

  • Device type (MCB / RCCB / RCBO / MCCB / SPD)
  • Current rating and breaking capacity
  • Trip curve for the load
  • Earth-leakage protection required by code

Specification dimensions are general engineering guidance — confirm exact values against your project drawings and local code.

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Switch Socket

Wiring accessories at the point of use.

Wall SwitchPower SocketUSB SocketDimmer SwitchWeatherproof Socket

Key specs to confirm

  • Current rating and gang count
  • Socket standard for the target market
  • IP rating for wet / outdoor areas
  • USB / smart variants where needed

Specification dimensions are general engineering guidance — confirm exact values against your project drawings and local code.

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Lighting System

Fixtures and drivers that light the home efficiently.

LED DownlightCeiling LightLED StripTrack LightOutdoor Light

Key specs to confirm

  • Fixture type by room and mounting
  • Lumen output and colour temperature
  • Driver / dimming compatibility
  • IP rating for bathroom / outdoor

Specification dimensions are general engineering guidance — confirm exact values against your project drawings and local code.

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Smart Home Wiring

Control, automation and network infrastructure.

Smart SwitchSmart SocketNetwork CableHome Automation Hub

Key specs to confirm

  • Smart protocol (Wi-Fi / Zigbee / wired)
  • Neutral requirement at switch points
  • Structured cabling for network
  • Hub / gateway placement

Specification dimensions are general engineering guidance — confirm exact values against your project drawings and local code.

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Solar Electrical

Balance-of-system components for rooftop PV.

Solar InverterSolar CableCombiner BoxSolar Breaker

Key specs to confirm

  • Inverter type and capacity
  • DC cable and connector rating
  • String protection and combiner
  • DC / AC isolation and earthing

Specification dimensions are general engineering guidance — confirm exact values against your project drawings and local code.

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Other systems

Electrical System FAQ

What cable size does a house need?
Cable size is set by the circuit load and the run length (to keep voltage drop in limits). Run the Cable Size Calculator for a planning figure and confirm against local code.
What is the difference between an MCB and an RCCB?
An MCB trips on overload and short circuit; an RCCB trips on earth leakage to protect people. Many homes use an RCBO which combines both in one device.
Can you supply a complete electrical package?
Yes — cable, distribution board, breakers, switches, sockets and lighting can be supplied together against one design, sized for the home's load profile.

Need the full Electrical package?

Our engineers spec the system, then we supply every material against that spec.

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