Square D 9013FHG42J59M1X DPST Pressure Switch – 135/175 psi, 1/4 in FNPS

Overview

From Square D by Schneider Electric, this DPST pressure switch is built for dependable dual-circuit control in pumps, compressors, and compact automation setups. It features a 135/175 psi switching range and a 1/4 inch FNPS threaded port, enabling a compact fit in tight spaces while delivering consistent actuation as system pressure changes.

Durability and reliability

Crafted with robust materials, this switch is designed to handle frequent cycling and the demands of residential and light commercial environments. The dual-pole design provides reliable isolation and control for two circuits, helping you coordinate operations without extra hardware.

Key specifications and what they mean

• Configuration: DPST (dual-pole, single-throw) for simultaneous control of two circuits
• Pressure range: 135/175 psi, suitable for mid-range pressure management
• Thread size: 1/4 inch FNPS for straightforward connections to compatible fittings
• Brand lineage: Square D by Schneider Electric, offering widely recognized protection and compatibility
• Availability: Sold on Amazon for convenient procurement and quick delivery

Real-world use cases

In a residential water system, this switch can start a pump when pressure drops and stop it as pressure rises, helping maintain steady flow. In a compact air compressor, it can coordinate cut-in/cut-out cycles to reduce wear and noise while preserving performance.

• Pumps and well systems needing reliable turn-on/turn-off control
• Small to mid-size air compressors requiring dual-circuit switching
• Line protection in compact process or equipment enclosures

Installation and care notes

Verify compatibility with your system voltage and ensure proper mounting in a safe enclosure. Confirm thread engagement and provide appropriate strain relief to safeguard connections over time. This device is designed for dependable operation within its stated range.

For best results, check that wiring practices align with local codes and the manufacturer’s guidelines. Regular inspection of connections and enclosure integrity can help maintain consistent performance through the life of the switch.

Why choose Square D

Square D products are known for durable construction and consistent performance in demanding environments. The 9013FHG42J59M1X line offers a compact footprint with precise actuation, backed by Schneider Electric's broader protection portfolio and global support.