If the pump is shut off due to low pressure how can it be restarted?

Turn the power off for a moment then back on

I have a 2hp pump, can you recommend a relay?

Assuming that's a 220 volt pump 2 hp at 85% efficiency is about 8 amps. A 10 amp DPDT 8 pin relay is very common. They come with wiring diagrams usually.

Is this sutable for 12 gauge wire?

It’s been 3 months now since installation with no problems ! I Replaced a Merrill mechanical pressure switch which had the pump and power lines enclosed within it ! Along with one of the reviews that suggested plumbing reduction fittings, I had to add a Junction Box for the electrical wiring to house the 220 volt line and the line from the pump. I set the pressures for Low 55 # and Hi at 70 #. Will post in summer how it handles water pressure with the lawn irrigation.

What is the correct wiring of the unit? Since no mention of the color coding is available. A diagram w/colors would be helpful.

Only color that matters is the green/yellow wire is ground. Other 2 are your 2 hot lines (110, 115, 120V) each leg. They are labeled on the back for power in, and switched power out.

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GamaTech 220V 230PSI Pressure Switch for Water Pump and Air Pump, Digital Adjustable Pressure Controller, 1/2" Male Npt

Product ID: 505050347

Details

Brand
Generic
Color
Yellow Casing
Material
Brass Plastic
Style
Pressure
Product Dimensions
6"L x 3.5"W x
Power Source
AC

💧Auto shutoff to prevent pump burnout

🔧True 1/2 inch male NPT threaded connector

⚙️Digital adjustable pressure 0-230 PSI

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VT20667

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Description

💡 Upgrade your pump game with smart digital precision!

PUMP PROTECTION MODE - Automatically stops your pump during water shortages to prevent costly motor damage—smart safety for your investment.
RUGGED WEATHERPROOF - Built with IP66 waterproof rating and durable brass/plastic materials to withstand harsh environments and ensure long-lasting performance.
UNIVERSAL COMPATIBILITY - Seamlessly fits any 1.5HP or smaller water and air pumps with a true 1/2 inch NPT connector designed for US/Canada standards.
PLUG PLAY INSTALLATION - Compact oval design and included user manual make upgrading from mechanical switches effortless—join the digital pressure control revolution.
PRECISION DIGITAL CONTROL - Set your pressure limits with a simple button press and monitor real-time PSI on the clear digital display—no extra gauges needed.

The GamaTech Pressure Switch is a digital, adjustable pressure controller designed for water and air pumps up to 1.5HP. Featuring a true 1/2 inch male NPT connector and a 0-230 PSI range, it replaces unreliable mechanical switches with precise digital control. Its automatic shutoff protects pumps from burnout during water shortages, while the IP66 waterproof rating ensures durability. Perfect for residential, commercial, and industrial use in US/Canada markets.

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TrustScore 4.5 | 7,300+ reviews

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The product quality is outstanding. Exactly what I needed for my work.

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The delivery time was excellent, and the packaging was secure.

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VT20667

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In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vanuatu.

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Brand	Generic
Color	Yellow Faceplate, Green/Black Casing
Material	Brass , Plastic
Power Source	AC
Product Dimensions	6"L x 3.5"W x 3"H
Style	Pressure controller

GamaTech 220V 230PSI Pressure Switch for Water Pump and Air Pump, Digital Adjustable Pressure Controller, 1/2" Male Npt

Details

Details

Description

Specifications

Common Questions