Page top


Omron uses cookies to improve your experience on this website. By continuing to use the website, you hereby agree to our Privacy and Cookie Policy

Lead Contents

General-purpose Relay: Exceeded Rated Carry Current

FAQ No. FAQ02064

Primary Contents


What happens when the rated carry current is exceeded at the switching section (contact section)?


The symptoms depend on whether the contacts have power supplied to them only or they are switched as well.

1.Power Supply Only

Generated heat may cause deterioration of the contacts and/or conductor insulation, and reduce the springiness (reset force) of the contact springs.


Contact transfer, welded contacts, OFF faults, abnormal consumption, and increase of contact resistance may occur.