Merrill Extra Heavy Duty Pressure Switch, 40-60

Merrill Extra Heavy Duty Pressure Switch, On @ 40psi - Off @ 60psi

The Merrill MPSXHD4060 Extra Heavy Duty Pressure Switch is a rugged, high-capacity pump control switch designed for reliable water pressure management, especially on higher horsepower pump systems. Its extra-large heavy-duty case makes wiring easier, while brass contacts improve conductivity and heavy brass wire connections securely clamp No. 4 wire with set screws to prevent slipping. Factory preset for dependable performance, it turns the pump on at 40 psi and off at 60 psi, and includes a 1/4" swivel union to simplify installation without needing to pivot the switch case.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: MPSXHD4060
• Brand: Merrill
• Product Type: Extra heavy-duty pressure switch (pump control)
• Factory Settings: On @ 40 psi / Off @ 60 psi
• Use Case: Ideal for higher horsepower pumps
• Contacts: Brass contacts for improved electrical conductivity
• Wiring Connections: Heavy brass wire connections with set screws (securely holds No. 4 wire)
• Installation Feature: 1/4" swivel union (no need to pivot the switch case to install)
• Durability Feature: Heavy fiberboard bracket for contact movement—stronger and more heat resistant
• Housing: Extra-large, heavy-duty case for easier wiring access

Ideal For

• Water systems needing automatic pump control at 40/60 psi
• Installations using higher horsepower pumps that benefit from heavy-duty components
• Setups requiring secure wiring for larger gauge conductors (up to No. 4 wire)
• Users wanting simpler installation with a 1/4" swivel union
• Applications where consistent pressure cycling and durable contact components matter