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UL 474 Standard for Dehumidifiers Updated

Dehumidifier photo

UL has released a new edition of UL 474, the standard for dehumidifiers. The 10th edition was issued to editorially remove a statement from thetransmittal page. No changes were made to the body of the standard.The new edition can be purchased on the UL website.

Description*

- Partner Content -

Shielding Effectiveness Test Guide

Just as interference testing requires RF enclosures, isolation systems in turn need their own testing. This document reviews some of the issues and considerations in testing RF enclosures.

“These requirements cover movable, household, self-contained dehumidifiers employing hermetic refrigerant motor-compressors and intended for connection to single-phase, alternating-current (ac) circuits rated not more than 20 amperes, 125 volts or 15 amperes, 208 or 230 volts. The requirements also cover dehumidifiers which incorporate electric air heaters.”

*Description from the UL website.

Photo by jcasimir

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