Refrig PTC Relay 1Pin

Description

Universal 1-Pin Refrigerator Compressor PTC Starter Relay (4.7Ω / 12Ω / 15Ω / 22Ω) ### Product Overview The 1-Pin PTC (Positive Temperature Coefficient) Starter Relay is a streamlined, solid-state electronic component designed to initiate the start cycle of fractional horsepower refrigeration compressors. It houses a premium ceramic resistor disc that handles the electrical heavy lifting. When the refrigerator cycles on, the disc delivers a high-current pulse to activate the compressor’s auxiliary start winding. Within moments, the disc heats up, its electrical resistance spikes sharply, and it cleanly cuts power to the start winding so the compressor can run efficiently on its main winding. ### Key Features Simplified 1-Pin Design: Features a single male spade quick-connect terminal, designed specifically for standard, efficient refrigerator circuits that run directly from the main power line without an external running capacitor. Solid-State Durability: Built with no moving internal parts, mechanical springs, or contacts to wear down or bind over time, ensuring thousands of silent, reliable start cycles. Universal 4.7Ω Resistance Option: Most commonly configured with a standard 4.7 Ohm internal ceramic disc, which matches the required starting torque of the vast majority of small-to-mid capacity kitchen cooling units. Direct Plug-On Assembly: Standard low-profile casing designed to slide directly onto the compressor’s lower run and start terminal pins under the plastic terminal housing. ### Product Compatibility & Sizing Specifications PTC relays are highly interchangeable functional parts. To guarantee a perfect fit, match the number of pins (1 Pin), the physical layout (ensure the terminal prong faces the correct direction relative to your wiring), and the resistance value (Ohms) printed on your original part. Direct Replaces & Equivalent Configurations: QP2 Series: QP2-4.7, QP2-4R7, QP2-12, QP2-15, QP2-22 (1-pin sub-variants) ZHB Series: ZHB54-120P4.7, ZHB60-120P4.7 (1-pin models) Universal Kits: Frequently bundled as a direct replacement package alongside generic 1/6 HP, 1/5 HP, or 1/4 HP thermal overload protectors (like the 6750C-0005P overload protector). Compatible Appliance Types: Standard domestic kitchen single-door and double-door refrigerators. Compact mini-fridges, hospitality bar coolers, and office under-counter units. Household chest freezers, upright deep freezers, and wine chillers. Small countertop ice makers and water dispensers/coolers. Common Compatible Appliance Brands: Because this part functions as a standardized replacement module, it is compatible across a wide spectrum of major global compressor and appliance brands, including: LG / Samsung / Panasonic (Very common default component) Whirlpool / Kenmore / Maytag / Frigidaire Danby / Haier / Midea / Magic Chef / Vissani RCA / Igloo / Galanz / EdgeStar ⚠️ Installation Note: If your refrigerator turns on, clicks every few minutes, but the compressor fails to run or get cold, the internal ceramic disc inside this relay has likely cracked or shattered. When replacing, ensure the terminal layout matches your original wiring. Always completely unplug the appliance from the wall before attempting the swap.