Applications - PENN Controls - LIT-12013066 - PCxxx - PMxxx - PRxxx - PSxxx - Electromechanical Pressure Control - P‐Series Encapsulated Pressure Switch

P-Series Encapsulated Pressure Controls Product Bulletin

PENN Controls
Product name
P‐Series Encapsulated Pressure Switch
Document type
Product Bulletin
Document number
Revision date

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.

Important: Except for those models listed as Refrigeration Pressure Limiting Controls, the P-Series controls are intended to control equipment under normal operating conditions. Failure or malfunction of a P-Series control could lead to an abnormal operating condition that could cause personal injury or damage to the equipment or other property. In these cases, limit or safety controls, or alarm or supervisory systems that warn of or protect against failure or malfunction of the P-Series control must be incorporated into and maintained as part of the control system.

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.