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What is the difference between the Type PB and Type S Panelboard Lighting Contactors?

Product and Application Difference

Product Line:
Lighting Contactors

8903 PB and S

Use and mounting 

These two types of panelboard contactors mount differently. The standard Type PB has busbar connections whereas the Type S has lugs.  The low profile PB contactors are all mecahnically-held , however the smaller footprint Type S can be electrically or mechanically-held.
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