SR203AM02

Power Relays, Over 2 Amps

SR203AM02 is a type of Power Relay manufactured by YMF Inc., a leading company in the relay industry. Small in size and light in weight, it is suitable for online UPS and personal computers with power saving backup applications. It utilizes a two-way operation principle to ensure seamless switching between primary and secondary power sources.

Application Field

SR203AM02 relay is mainly used in electric power switching systems. Its uses range from being used in home and industrial lighting systems, to UPS applications, to UV Lamp switching systems. SR203AM02 relay can also be used for alarm control systems, controlling power sources for HVAC systems, and temperature controlling systems. Since it is splash-proof, this relay is also used in outdoor applications where protection against water and dust is necessary.

Working Principle

The SR203AM02 relay consists of a panel with two switches, one for primary power and another for the backup power source. It works on a 2-way operation principle where the main supply is switched off when the backup power source is activated. The two-way contacts of the switch are made of silver and gold alloy for providing electrical contact that is highly resistant to burn outs. This ensures that power can be effectively switched without any delays.

Moreover, the construction of the switch is anti-arc, ensuring no spark is generated when the switch is operated. This helps it maintain its contact life span for a longer period of time while providing a reliable switching solution. In addition, the relay has a built-in temperature protection and over current protection feature that protects it from any damage caused by abnormal conditions.

Conclusion

SR203AM02 relay is a reliable and cost-effective solution for a wide range of applications. Its 2-way switching principle ensures seamless switching between primary and secondary power sources. The small size and light weight makes it suitable for applications requiring a compact design. The built-in temperature and over current protection makes it a safe and durable solution for all kinds of power switching applications.