Your Cart

Get special upgrade deals! Sign in to see if you qualify for deals.
Cart Empty

Your cart is empty

There are no items in your cart

Taxes: Calculated at checkout
Subtotal: $0.00

Keep shopping

Product Image
MixedInKey Logo
You own this software | Purchased on

Included Software:

Get special upgrade deals! Sign in to see if you qualify for deals.

Because this is a copyrighted international standard, the official PDF must be purchased. It is not legally available for free download from public sources.

Visit the IEC Webstore today, search for "IEC TR 60890:2014+AMD1:2017 CSV," and secure your legitimate copy. Then, download the calculation spreadsheets (available from various third-party engineering sites) to automate the process. Do not rely on free, illegal copies—your career and your clients' safety depend on accuracy and compliance.

This edition is fully aligned with IEC 61439-1:2020 , the main standard for low-voltage switchgear assemblies.

Power losses must be roughly evenly distributed within the enclosure. No Interference: not applicable

factors based on the enclosure type (ventilated/non-ventilated).