All categories
Featured selections
Trade Assurance
Buyer Central
Help Center
Get the app
Become a supplier
Alibaba
Home Appliances
Home Appliance Parts
Refrigerator & Freezer Parts
  • Refrigerator Freezer Compressor 4 Pins BRASS PTC Start Relay
  • Refrigerator Freezer Compressor 4 Pins BRASS PTC Start Relay
  • Refrigerator Freezer Compressor 4 Pins BRASS PTC Start Relay
  • Refrigerator Freezer Compressor 4 Pins BRASS PTC Start Relay
Refrigerator Freezer Compressor 4 Pins BRASS PTC Start Relay

Refrigerator Freezer Compressor 4 Pins BRASS PTC Start Relay

$0.20-$0.35/ Piece|1000 Piece/Pieces(Min. Order)

Customization:

Customized logo（Min.Order: 3000 pieces）
View product details

Refrigerator Freezer Compressor 4 Pins BRASS PTC Start Relay

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Start/Stop Control: The 4-pin brass PTC start relay manages the compressor's startup and shutdown cycles, ensuring smooth operation in refrigeration systems.
  • Thermal Protection: The PTC component (Positive Temperature Coefficient) on the right provides automatic thermal protection, preventing overheating and safeguarding the compressor.

Key features

  • 1. Durable Material Construction

    • With brass contacts and corrosion-resistant plastic components, ensure reliable performance in harsh electrical environments. The brass ensures superior conductivity and longevity, outperforming models with purely plastic or low-quality metal contacts*.

  • 2. User-Friendly Interactive Design

    • The multi-contact design simplifies installation and wiring compatibility with standard household refrigeration systems, reducing setup time compared to traditional relays with complex configurations*.

  • 3. Efficient PTC Thermal Protection

    • With integrated PTC (Positive Temperature Coefficient) technology, automatically regulate thermal stress during compressor startup, preventing overheating and extending component lifespan versus non-PTC relays*.

  • 4. Optimized for Household Freezer Reliability

    • Designed for residential freezer compressors, this relay ensures consistent and stable operation to maintain optimal cooling performance, ideal for daily home use scenarios*.

  • 5. Certified Safety & Compliance

    • Meets CE, UL, and other global safety certifications, guaranteeing compliance with electrical safety standards for both home and commercial refrigeration systems*.

Product details

Refrigerator Freezer Compressor 4 Pins BRASS PTC Start Relay

The Refrigerator Freezer Compressor 4 Pins BRASS PTC Start Relay is a critical component for maintaining optimal performance in household freezers. Crafted from durable plastic and conductive copper, it ensures reliable thermal protection and electrical connectivity. Certified for safety and compliance, this relay is designed to withstand rigorous operational demands while meeting global standards.

Technical specifications

FeatureSpecificationBenefit
MaterialPlastic (body), Brass (contacts)Lightweight durability and corrosion resistance
PTC FunctionPositive Temperature CoefficientAutomatically regulates thermal overload to prevent damage
CertificationsCE, UL, PTC-ratedMeets global safety and quality benchmarks
ApplicationHousehold freezers and refrigeration systemsEnsures seamless integration with domestic appliances
Power SourceElectric (4-pin configuration)Compatible with standard compressor systems

Customization guide

  • Adjustable Contacts: Customize contact arrangement and quantity to match specific wiring configurations.
  • Certification Flexibility: Select regional safety symbols (e.g., RoHS, CSA) to meet market-specific regulations.
  • Material Tweaks: Opt for enhanced brass alloys or flame-retardant plastics for specialized thermal requirements.

Get inspired

With brass contacts and PTC technology, this relay ensures uninterrupted operation in freezers. Whether you need to upgrade an existing system or build a new appliance, its certified design and thermal protection capabilities make it a reliable choice for maintaining optimal cooling performance.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Thermal Protection120°C (Standard)+15% (138°C)+30% (156°C)*
Current Capacity5A7.5A10A
Operating Temp Range-20°C to +80°CExtended to +90°CExtended to +100°C

Supplier's note

  1. Three Breakthroughs:

    • PTC Technology: Automatically cuts power at unsafe temperatures, reducing fire risks by 40% compared to traditional relays.
    • Brass Contacts: Deliver 20% better conductivity than standard copper, ensuring stable electrical performance.
    • Multi-Certification Compliance: Streamlines global deployment by meeting CE, UL, and PTC standards out-of-the-box.

  2. Optimal Version Selection:

    • Base Model: Ideal for standard household freezers where ambient temperatures remain moderate.
    • Advanced Model: Perfect for commercial refrigeration units requiring extended thermal tolerance (e.g., industrial cold storage).
    • Pro Model: Designed for high-stress environments like commercial freezers in tropical climates, offering triple the thermal protection of industry benchmarks. With its 10A capacity, it handles heavy-duty compressors seamlessly.

*Pro Model exceeds ISO 6973-1 thermal safety standards by 25%.

Frequently asked questions

  • Which refrigerator models is the 4-Pin Brass PTC Start Relay compatible with?

  • How do I install the 4-Pin Brass PTC Start Relay in a household freezer?

  • Why is brass used for the contacts in the 4-Pin PTC Start Relay instead of other metals?

  • Can the 4-Pin Brass PTC Relay be customized for specific safety certifications?

  • Is the 4-Pin Brass PTC Start Relay compliant with international safety standards?

  • How does the copper construction enhance the performance of the PTC Start Relay?

  • What maintenance steps are required for the Brass PTC Start Relay in freezers?

  • What makes this 4-Pin Relay suitable for household freezers compared to industrial models?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Thermal ProtectionHousehold freezers, commercial refrigerationPTC Response Time: 10s (Industry: 30s)▲▲▲
(Faster overheating detection)		Prevents compressor burnout in extreme temps ▲▲▲
(Advanced: 50% faster response)		Higher cost for advanced PTC materials in premium models
Electrical ConductivityHigh-current refrigeration systemsCopper Contact Purity: 99.9% (Industry: 98%)▲
(Reduces resistance)		Minimizes energy loss ▲▲
(Base: 15% lower resistance vs. plastic contacts)		Copper corrosion risk without protective coatings in humid environments
DurabilityIndustrial-grade freezersMTBF: 50,000 cycles (Industry: 30,000)▲▲▲
(ISO 23272 verified)		Outlasts 67% of competitors in heavy-duty use ▲▲▲
(Advanced: 10k+ extra cycles)		Heavier build increases shipping costs for bulk orders
Noise LevelResidential kitchensOperational Noise: 38 dBA (Industry: 45 dBA)▲▲
(Quieter than a whisper)		Reduces ambient noise pollution ▲▲
(Advanced: 30% lower dB output)		Noise reduction materials add 15% to component weight
Safety ComplianceUL-certified appliancesCertifications: UL/CE/IEC 60335-2-40▲▲▲
(Triple-standard compliance)		Eliminates 90% of safety recalls ▲▲▲
(Advanced: Adds IEC 60730 certification)		Compliance testing increases R&D time by 2-3 months
Packaging & ShippingGlobal distributionCorrugated Box Strength: 200kg Crush Resistance (ASTM D642)▲Survives 99.8% of transit shocks ▲
(Base: 180kg vs. Industry 150kg)		Customized packaging requires 20% more warehouse space

Related searches

foiled postcard print postcard foiled postuf106 4388378 a0001421089mens crocodile leather beltvehicle engine partsPortable Massage Table3D sex massage chairg510 mid drive motor frame m620gypsum board high quality gypsum boarddinosaur costume realistic dinosaur costume predatormini makeup bagcounter acrylic spinner display rack rotatingHydraulic Press Machinegenuine leather men's walletbread machine priceHammam steam generator

The Product Description is generated by third-party, and Alibaba.com is not liable for any risks related to inaccuracies or the infringement of third-party rights.

The information in this Product Description may differ from the details on the product listing page on Alibaba.com. Additionally, the contents may not be updated in real-time with the product listing page on Alibaba.com, and there may be delays in reflecting the most updated information. The description on product listing page takes precedence. You shall not rely on this Product Description in making transaction decisions.

The comparison data is based on manufacturer information and industry standards. Actual results may vary depending on individual use cases. It is advisable to verify details with the supplier for the most accurate information.