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What is the difference between Type 1 & Type 2 coordination?

FA105974

6/08/2020

Issue:
Type 1 & Type 2 short circuit coordination comparison

Product Line:
Starters and Contactors

Environment:
Products sold in North America

Resolution:
Type I - Under short circuit conditions, the contactor or starter shall cause no danger to persons or installation and may not be suitable for further service without repair and replacement parts.

Type II - Under short circuit conditions, the contactor or starter shall cause no danger to persons or installation and shall be suitable for further use. The risk of contact welding is recognized, in which case the manufacturer shall indicate the measures to be taken in regards to equipment maintenance.

For additional information on Understanding Type 2 Coordination please refer to Link below in document # 0140PD9202.
https://www.se.com/us/en/download/document/0140PD9202/