PTC Start Relay & Overload Protector for Mini Fridge Compressor

Refrigerator Compressor PTC Start Relay & Overload Protector

Keep your mini fridge or cooler running smoothly with this high-quality PTC Start Relay and Overload Protector. Designed as a direct replacement for compressor starters on a wide range of mini refrigerators, compact coolers, and air conditioning units, this kit includes everything you need for a quick, hassle-free repair at home.

Why You Need This Part

The PTC start relay is responsible for initiating your refrigerator compressor's motor at startup. The overload protector works alongside it to automatically shut down the compressor if the motor draws excessive current — protecting your appliance from damage and extending its lifespan. If your refrigerator is not cooling or the compressor is not starting, a faulty relay or overload protector is often the cause.

Key Features

• Universal Compatibility: Suitable for various brands of mini refrigerators and coolers
• Two Pin Options: Available in 1-pin and 2-pin configurations to match your compressor
• 15 Ohm Resistance: Consistent and reliable electrical performance
• 1/6 HP Overload Protector: Designed for R600A / 125W compressors
• Durable Construction: Made from high-quality plastic and metal for long-lasting reliability
• Compact & Lightweight: Small form factor makes installation easy in tight spaces
• Easy DIY Installation: No special tools required — a straightforward home repair
• Made in Mainland China

Specifications

• Material: Plastic + Metal
• Resistance: 15 Ohms
• Pin Configuration: 1-Pin or 2-Pin (optional)
• Model: 1 Pin 15Ω + 1/6H  |  2 Pin 15Ω + 1/6H
• Color: Black / White
• Overload Protector Rating: 1/6 HP (for R600A / 125W compressors)

Package Includes

• 1× Refrigerator PTC Start Relay
• 1× Overload Protector

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Note: Please refer to the specifications and your appliance's manual to confirm compatibility before purchasing. Slight color differences may occur due to monitor settings. Manual measurements may result in minor size variations.

Learn more: OSHA guidance on hand and power tools

Frequently Asked Questions

Q: What is a PTC start relay and why does my refrigerator need one?

A: A PTC (Positive Temperature Coefficient) start relay is a small but essential component that helps the compressor motor start up efficiently. Without a functioning start relay, the compressor may fail to start, causing your refrigerator to stop cooling. Replacing a faulty relay with this unit can restore normal operation quickly and affordably.

Q: How do I know if this relay is compatible with my refrigerator?

A: This relay is designed for mini refrigerators and compact coolers using R600A refrigerant with a 125W (1/6 HP) compressor. It is available in both 1-pin and 2-pin configurations. Check your existing relay's pin count and resistance rating (15 ohms) to confirm compatibility. Consult your appliance's manual or the label on your compressor for further guidance.

Q: Is this part easy to install at home?

A: Yes! This PTC start relay and overload protector is designed for straightforward DIY installation. Simply unplug your appliance, locate the compressor, remove the old relay by pulling it off the compressor pins, and snap the new one into place. No special tools are required. Always ensure the appliance is unplugged before performing any repairs.

Q: What does the overload protector do?

A: The overload protector monitors the electrical current drawn by the compressor motor. If the current exceeds safe levels — for example due to a mechanical fault or voltage spike — the overload protector automatically interrupts the circuit and shuts down the compressor, helping to prevent overheating and component damage.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.