As a key component in circuit control, relays perform the important function of switching high currents in modern electronic devices. In this study, the W33 power relay is used as a research object, which is developed for high load environment and has excellent performance and working stability. The following is a detailed introduction of the W33 in terms of technical features, application scenarios and safety standards.
10A switching capacity: Suitable for high-power devices such as air conditioners and washing machines, this switch can handle up to 10A of current.
277VAC design: Maximum switching voltage is 277VAC, which meets the needs of various high-voltage scenarios.
AgSnO₂ contact material: silver tin oxide material combines high conductivity and wear resistance, with a mechanical life of up to 5 million operations and an electrical life of up to 1 million operations under standard loads.
Shock and vibration resistant: it can resist a functional shock of 98 m/s² and vibrations ranging from 10Hz to 55Hz, adapting to various challenging work environments.
With a size of just 24×11×25mm, it saves installation space.
RoHS compliant, no hazardous substances, environmentally safe.
Insulation resistance: initial value 1000MΩ (500VDC), voltage resistance between contacts 1000VAC, voltage resistance between coil and contacts 4000VAC.
Response time: Absorption ≤ 15ms, release ≤ 5ms, guaranteeing fast and precise control.
Operating temperature range: -40℃ to 85℃, covering extreme temperature scenarios.
Humidity range: 5% to 90%, adapting to humid or dry environment.
Provide DC voltage options of 5V, 9V, 12V, and 24V, which are compatible with various control system needs.
Power management modules are used in refrigerators, washing machines, and other equipment to assure the safety of high current switching.
Control intelligent lights, electric curtains, and security devices to improve system reliability.
Industrial Automation
Suitable for small control cabinets or low-voltage distribution systems, supporting frequent switching operations.
Fanhar W33 has passed many authoritative certifications, including:
UL certification (File No. E475405): Complies with TV-5 125VAC standard, rated load 5A/10A 250VAC.
TUV certification (R 50406989): Verifies stability and safety in high voltage environments.
COC Certification (COC18002188987): Ensures product compliance with international environmental and performance standards.
Installation protection: Avoid dropping or mechanical impact to prevent damage to the internal structure.
Load Matching: Select standard load (5A) or high load (10A) model according to actual demand.
Environmental constraints: Ensure that the operating temperature and humidity are within the rated range to prolong service life.
The W33 power relay, due to its large capacity, compact dimensions, and universal safety certifications, is a reliable component for domestic appliances, smart homes, and industrial automation systems. With its AgSnO₂ contact material, quick response, and broad temperature adaptability, it’s a powerful solution for current regulation in complex environments. Backed by strict international certifications and an eco-friendly design, the W33 delivers excellent performance while prioritizing safety and environmental responsibility.
