LS Electric America Knowledge Base

What are the auxiliary options for Metasol Contactors?

Updated: Fri Feb 06 09:32:18 KST 2026

LS offers a variety of auxiliaries which can be attached to the Metasol contactors. This includes both side mount and front mount auxiliaries. See the below options.
 
Side Mount
  1. UA-1 (2 Auxiliaries)
Front Mount
  1. UA-2 (2 Auxiliaries)
  2. UA-4 (4 Auxiliaries)
For larger models the models are designated AU instead of UA. These apply to contactors MC185a-800a.

Info
Auxiliaries are designated "A" for Normally Open and "B" for Normally Closed when ordering.  On the auxiliaries it will be printed as NO and NC.
 
 UA-4 With 2xNO and 2xNC contacts. The item description would be a "2a2b".
Below you will find ordering codes and a list of the possible combinations for NO and NC arrangements.
 
 
For the AU models see below:
 
 
 
 
 

What are the auxiliary options for Metasol Contactors?

LS offers a variety of auxiliaries which can be attached to the Metasol contactors. This includes both side mount and front mount auxiliaries. See the below options.
 
Side Mount
  1. UA-1 (2 Auxiliaries)
Front Mount
  1. UA-2 (2 Auxiliaries)
  2. UA-4 (4 Auxiliaries)
For larger models the models are designated AU instead of UA. These apply to contactors MC185a-800a.

Info
Auxiliaries are designated "A" for Normally Open and "B" for Normally Closed when ordering.  On the auxiliaries it will be printed as NO and NC.
 
 UA-4 With 2xNO and 2xNC contacts. The item description would be a "2a2b".
Below you will find ordering codes and a list of the possible combinations for NO and NC arrangements.
 
 
For the AU models see below:
 
 
 
 
 

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