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Circuit breaker selection guide

How to specify circuit breakers, and what determines the cost of an installation.

This page was a price list

The legacy version of this page published a price list. Prices are not reproduced here: brief §30 requires commercial data to come from supplied current sources, and the legacy figures carried no validity date. Send us your requirement for a current quotation.

What determines cost

The frame size and current rating of each device.

The breaking capacity — higher fault levels need more expensive devices.

Whether the trip unit is fixed or adjustable.

Accessories: shunt trips, auxiliary contacts, undervoltage releases, motor operators.

The brand and whether the product is supplied through authorised channels.

The enclosure and whether an assembly is needed rather than individual devices.

Getting a useful quotation

Send the single-line diagram if you have one, or the list of outgoing circuits with their ratings and cable sizes. With that we can price the board rather than guessing at individual devices.

Need help with a specification?

Call 09678 566 000 or email info@impress.com.bd and we will work through the requirement with you.


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