How to Choose the Right LT Distribution Panel

Define the electrical duty

Provide supply voltage, phases, frequency, maximum demand, diversity assumptions, feeder schedule and future capacity. Calculate the fault level at the panel and specify suitable breaking and assembly withstand ratings.

Coordinate protection

Choose incomer and outgoing protective devices from cable capacity, load behaviour and protection coordination. Check neutral sizing for unbalanced and harmonic loads, earthing arrangement and metering requirements.

Practical project example

A factory adding a production line needs a revised load and feeder schedule. Check the spare feeder space, busbar thermal duty and fault rating; spare physical space alone does not establish that the panel can carry the additional load.

Review the assembly

Agree enclosure protection, indoor or outdoor use, ventilation, cable entry, segregation and maintenance access. Request drawings, verification documentation, component schedules and commissioning checks for the applicable assembly standard.

Frequently asked questions

Is busbar current rating enough to select an LT panel?

No. Short-circuit duty, protection coordination, thermal conditions, neutral requirements and enclosure construction also affect the panel specification.

Are the examples a GEESYS product specification?

No. Worked examples explain selection principles. Use the selected product datasheet and approved project design for actual ratings and installation requirements.

Related GEESYS products

• Lt Distribution Panels Overview