Merrill MPS3050 Water Well Pressure Switch – 30-50 PSI, 1/4 in NPT, OEM Replacement

Overview

The Merrill MPS3050 water well pressure switch is a dependable OEM replacement designed for electrically driven pumps across multiple well types, including jets, submersibles, and reciprocating systems. It supports standard, residential to small commercial well configurations with steady on off cycling and straightforward integration.

Key settings drive a practical 30 psi cut in and 50 psi cut off, with an adjustable differential to suit different well behaviors. Rated for up to 2 HP at 115 VAC, it pairs efficiently with common pump controllers. A 1/4 inch female NPT connection makes plumbing connections familiar, and the NEMA 1 enclosure offers basic protection in indoor or semi enclosed spaces. Each unit is individually boxed as an OEM replacement part for easy handling and replacement planning.

California Prop 65 warning applies to this product. Consumers should review the Safety and Handling guidance on P65Warnings.ca.gov to understand any potential exposure considerations.

Key features and benefits

• Cut-in pressure of 30 PSI and cut-off at 50 PSI with adjustable differential
• Large contacts designed to extend service life by handling rising pressure efficiently
• 1-Phase operation rated up to 2 HP at 115 VAC
• 1/4 inch female NPT for straightforward plumbing and integration
• NEMA 1 enclosure suitable for common indoor or protected mounting environments
• Individually boxed OEM replacement part for quick upgrades or maintenance

Real world use and installation considerations

• Versatile compatibility with jets, submersible, and reciprocating pump configurations within typical well installations
• Adjustable differential offers potential to optimize cycling based on demand and well drawdown
• Designed as a reliable OEM replacement to minimize downtime during service or upgrades

For safe and code-compliant setup, follow local electrical codes and consider professional installation if wiring or pump compatibility is uncertain. This Merrill switch is crafted to fit standard configurations and may help streamline replacement projects while maintaining dependable control of your well pump.