P-Model pressure switches come with unloader valves standard, and manual override switch on the top cover. Model P1 has four outlet ports while model P2 has a single outlet port. The P3 pressure switches have overload protection. Available for 6/10Amp and 13/18Amp. Overload protectors are available as spares ranging from (Amps) 2-4, 4-6, 6-10, 9-14, 13-18, 16-20

Part No	Description	Volt	Amp	Max diff
P1	Single Phase, four port	220	20 Max	2bar
P2-1	Three Phase, single port	380	20 Max	2bar
P2-4	Three Phase, four port	220	20 Max	2bar
P3	Three Phase, single port overload protection	380	6-10	2bar
P4	Three Phase, single port overload protection	380	10-18	2 bar
POP	Overload Protector	380	2/4, 4/6, 6/10, 9/14, 13/18, 16/20	---