90.64 Refrigeration Equipment Relay Freezer Defrost Relay & Heat
Exchange Parts
Product Overview
The 90.64 Refrigeration Equipment Relay is a high-precision electromagnetic relay specially designed for refrigeration and freezing systems.
It functions as the electrical control core in the defrost and cooling circuit, ensuring the smooth transition between refrigeration, heating, and defrost modes.
Manufactured from high-quality copper-silver alloy contacts and flame-retardant insulation materials, this relay offers exceptional reliability, long lifespan, and consistent performance even in harsh working environments such as low-temperature cold
rooms or continuous heavy-load operation.
Its compact structure, low power consumption, and easy installation
make it widely applicable in commercial refrigerators, freezers, cold storage equipment, air
conditioners, and heat pump systems.
Key Features & Benefits
| Feature | Description |
|---|
| Precise Switching Control | Provides reliable switching between cooling and defrost circuits to
maintain stable system operation. |
| High Conductivity Contacts | Made of copper-silver alloy for low resistance, minimal energy
loss, and excellent conductivity. |
| Long Service Life | Designed for more than 100,000 electrical cycles under rated load,
ensuring durability and reliability. |
| Thermal Stability | Resistant to temperature fluctuations, maintaining consistent
operation from -25°C to +70°C. |
| Compact Design | Easy to integrate into control boards or electrical panels of
refrigeration systems. |
| Flame-Retardant Housing | Provides extra safety and insulation protection in high-moisture or
temperature-sensitive environments. |
| Universal Compatibility | Suitable for Carrier, Thermo King, Danfoss, Copeland, and other
major refrigeration systems. |
Technical Specifications
| Parameter | Specification |
|---|
| Product Name | Refrigeration Equipment Defrost Relay |
| Model Number | 90.64 |
| Function | Controls the switching between refrigeration and defrost cycles |
| Material | Copper-silver alloy contact, high-strength flame-retardant plastic |
| Rated Voltage | 110V / 220V AC (customizable) |
| Rated Current | 10A / 16A |
| Contact Type | SPDT / DPDT |
| Contact Resistance | ≤ 50 mΩ |
| Insulation Resistance | ≥ 100 MΩ |
| Dielectric Strength | 1500V AC / 1 min |
| Operating Temperature Range | -25°C ~ +70°C |
| Mounting Type | Plug-in or screw-fixed |
| Cycle Life | Mechanical: ≥ 1,000,000 cycles / Electrical: ≥ 100,000 cycles |
| Weight | Approx. 50–120g (depending on type) |
| Condition | 100% Brand New |
| Certification | CE / RoHS / ISO9001 |
| Origin | Made in China |
Applications
Commercial and industrial refrigeration systems
Cold storage rooms and warehouse units
Display freezers and ice machines
Transport refrigeration (Carrier, Thermo King, etc.)
HVAC and heat pump control systems
Beverage coolers and supermarket display fridges
Why Choose This Relay
Ensures precise temperature regulation and efficient defrost timing
Reduces compressor wear and extends overall equipment lifespan
Supports both manual and automatic defrost systems
Compact design allows easy replacement or system upgrading
Backed by factory testing for stable performance under continuous load
Packaging & Delivery
| Packaging Type | Description |
|---|
| Individual Box | Anti-static plastic or foam protection for each unit |
| Bulk Carton | 50–200 pcs per export carton, with reinforced edges |
| Labeling | Product model, voltage, and date code printed clearly |
| Lead Time | Within 3–7 working days after payment |
| Shipping Options | Express (DHL, FedEx), Air Freight, or Sea Shipment |
About Our Manufacturing
We specialize in refrigeration and air-conditioning electrical components, offering a complete range including:
Relays and Defrost Timers
Thermistors and Pressure Switches
Fan Motors and Solenoid Valves
Compressors and Control Modules
All parts are tested before shipment to ensure 100% functionality and safety.
Our factory maintains ISO9001 quality management certification and serves global OEM and aftermarket clients in Europe, South America, and Southeast Asia.
1. Can I get a sample?
Of course! We are happy to provide you with samples. You only need
to pay the sample fee and shipping fee. After confirming that our
samples meet your product and quality requirements, we will waive
the sample fees for you.
2. Do you give any guarantee to your products?
Yes, we have 18-month quality guarantee except for some fast moving
parts (such as filters, spark plug etc).
3. How long for delivery time after pay deposit?
1) For body parts product, it generally takes 15 days for
production.
2) For suspension product, it generally takes 20-25 days for
production.
3) For engine products, it generally takes 30 days for production.
4. What are your advantages?
Prompt reply and honest attitude. Delivery fast, Price advantage,
Keep quality and do best service.
