Barksdale C9612-3-CS Sealed Piston Pressure Switch

Product Description

The BARKSDALE C9612-3-CS is a sealed piston pressure switch designed for industrial and commercial fluid-system applications where reliable pressure sensing across a wide range is required. The switch covers an adjustable setpoint range of 280 to 3000 psi on rise and 250 to 2650 psi on fall, with a deadband of 30 to 350 psi. It accepts voltages of 125 V ac, 250 V ac, 480 V ac, and 250 V dc, and features an SPDT contact form. The wetted components are nickel-plated aluminum, and the housing is aluminum. Licensed plumbers, pipefitters, and industrial maintenance technicians typically install this switch in hydraulic, pneumatic, or high-pressure fluid circuits.

This pressure switch suits residential, commercial, and light industrial systems where a wide-range adjustable setpoint is needed. Common applications include hydraulic power units, compressor protection circuits, high-pressure water systems, and industrial process lines. The 1/4 inch NPTF female thread fits standard instrumentation porting found across a broad range of equipment. The 18-inch free leads allow flexible routing to the control panel or relay terminal without additional junction hardware.

Key Features

• Adjustable pressure setpoint: 280 to 3000 psi on rise, 250 to 2650 psi on fall
• SPDT contact form with both normally open and normally closed starting positions
• Rated for 125 V ac, 250 V ac, 480 V ac at 10 amps and 250 V dc at 0.03 amps
• 2% repeatability for consistent, accurate pressure actuation
• 18-inch free leads for flexible wiring installation
• Nickel-plated aluminum wetted material for corrosion resistance in fluid circuits
• CSA approved and UL listed, Class 3231 02

Compatibility

Designed as an OEM-style replacement or new-installation sealed piston pressure switch for industrial and commercial high-pressure fluid systems using 1/4 inch NPTF instrumentation ports.

Installation Notes

Installation should be performed by a licensed pipefitter, plumber, or qualified industrial maintenance technician. Depressurize and isolate the system completely before removing or installing this switch. Apply thread sealant rated for the system fluid and pressure before threading into the port; do not over-tighten the fitting. Route and secure the 18-inch free leads away from heat sources and moving parts before energizing the circuit.