Pressure Switches

The HA149 mechanical pressure switch is listed at 6 PSI and features normally closed contacts, a 1/8-inch NPT thread and metal construction. Compar...

The HA151 mechanical pressure switch is listed at 4 PSI and features normally open contacts, a 1/8-inch NPT thread and metal construction. Compare ...

The HA154 mechanical pressure switch is listed at 15 PSI and features normally closed contacts, a 1/8-inch NPT thread and metal construction. These...