The P-Series controls operate in refrigerant and air-conditioning applications. P-Series controls are compatible with all non-corrosive refrigerants and you can use other non-corrosive fluid applications with the P-Series controls.
See Table 1 for information about standard P-Series controls that are available in a variety of factory-set, non-adjustable pressure setpoints. See Control options for non-standard model requests for information about non-standard models with customer specified setpoints that you can order in large quantity orders.
Some P-Series control models are available with environmentally sealed, electrical contacts that are suitable for use in a wide range of ambient conditions.
Standard P-Series control models feature the following electrical switches.
- SPST or SPDT automatic reset with contacts rated for high current applications
- SPST open high switch action and a manual reset lockout mechanism for high pressure lockout applications
- Single-pole, single-throw (SPST), or a single-pole, double-throw (SPDT) switch, with an automatic reset and with or without a conduit clamp
- Automatic reset with either open-low or open-high switch action, typically used for a low-pressure cutout, high-pressure cutout, and condenser fan cycling applications
Standard P-Series control models are supplied with 48 in. wire leads. Some standard models have a conduit clamp for a 3/8 in. flexible metal conduit. See Figure 1, Table 1, and Table 1 for more information.
Standard P-Series control models are available with standard electrical duty ratings. P-Series control models with heavy duty electrical ratings are available for large quantity orders. See Electrical ratings and Standard P-Series control models ordering information and Control options for non-standard model requests.
Standard P-Series control models have a 1/4 in. SAE brass female flare fitting with an internal Schrader® valve depressor. A variety of other pressure connection styles are available on non-standard models for large quantity orders, including 2 in. long, 1/4 in. diameter, copper Thermal Isolation Fittings (TIFs). See Dimensions, Control options for non-standard model requests, and Figure 1.
Non-standard models are also available with 1/4 in. male, quick-connected spade terminals, wire leads of various lengths, and wire leads with 1/4 in. male or female quick-connect terminals. See Dimensions, Control options for non-standard model requests, and Figure 1.