Connected Load

Connected load is the input power for a lighting group.

Connected load is the total input power of a lighting group. It supports energy and load summaries, not circuit design.

Technical meaning

  • Connected load is the sum of input watts for the luminaires or lighting equipment in the assessed group.
  • It belongs in the lighting note beside fitting count, watts per fitting, driver load where relevant and the operating schedule used for energy estimates.
Connected load schedule rowsConnected load is built from countable lighting rows before operating hours or annual energy are read.

Calculation use

  • For a simple luminaire group, connected load equals fitting count multiplied by watts per fitting.
  • For running-cost estimates, connected load is converted to kilowatts and multiplied by annual operating hours.

Not the same as

  • Connected load is not illuminance. A lower connected load can still under-light a task plane if lumen output or distribution is unsuitable.
  • Connected load is not circuit design. Circuit capacity, protective devices, switching, controls and wiring requirements need their own electrical note.

Australian context

  • Australian lighting estimates should keep connected load as a lighting and energy figure, while licensed electrical work and installation details remain outside the calculator result.

Examples

ExampleValuePlanning note
8 fittings at 12 W96 WGroup load before controls and operating-hours assumptions.
40 m of 9.6 W/m strip384 WDriver sizing also needs headroom, voltage and installation notes.
0.096 kW for 2,500 h/year240 kWh/yearAnnual energy follows from load and schedule.

Calculation limits and records

  • Connected-load arithmetic supports lighting estimates and energy notes. Electrical installation decisions need project-specific electrical documentation.

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