1370080 Potter PCS-300-1B Pump Control Switch

General

The model PCS is a Pump Control Switch with independent set and reset points which are adjustable throughout the entire operating range of the switch. The minimum deadband (minimum span between set and reset points) may be obtained at any point in the operating range of the switch. When the pressure drops below the setting, a snap action switch closes energizing the built in pump control relay and turns the pump on. When the pressure increases above the high setting, the snap action switch opens de-energizing the built in pump control relay and turns the pump off

This control device is designed for use as an operating control in applications sensing air, water, or any fluid not harmful to the pressure connection, diaphragm or nitrile pressure-sealing o-ring. Where an operating control would result in personal injury and/or loss of property, it is the responsibility of the installer to add devices (safety, limit controls) that protect against, or systems (alarm, supervisory systems) that warn of control failure.

Mounting and Installation

The Model PCS is typically mounted in an upright position on a flat surface by two 1/4" screws through the mounting flanges on the base or by two 1/4-20 screws into the back of the base. See Fig. 1 for mounting dimensions. Locate the switch where vibration, shock and ambient temperature fluctuations are minimal. To avoid damage to the switch, always hold a wrench on the pressure connection hex when tightening pressure connections. Never tighten the pressure connection by turning the switch housing into the fitting.

Specifications

• UL Listed, CSA Approved, and CE Marked
• Listing/Approvals: - UL Standard 508 Guide (NKPZ) and CSA Standard C22.2 No. 14-M Class (321106) for Pressure Operated Industrial Control Equipment. UL Standard 873 Guide (XAPX) for Temperature Indicating and Regulating Equipment. CE Marked
• Ambient/Media Temperature Range: - 40°F to 140°F (4.5°C to 60°C)
• Construction:
  • NEMA Type 4X Enclosure for indoor or outdoor use. (To maintain 4X rating, use appropriate Type 4 conduit hub.)
  • Forged Brass Pressure Connections
  • Aluminum Diecast Base with Polymer Enclosure
  • Beryllium Copper
  • Nitrile Pressure Sealing O-ring
• Switch Contact: - 15 Amps @125 VAC Resitive, 1/2 HP @ 125 VAC

1370080 Specifications PDF