15721S2A5

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Power Relays, Over 2 Amps

A 15721S2A5 is a type of power relay with higher current rating than the ordinary standard relay. It is a high-powered device, typically rated above 2 Amps, that is used for switching electrical current in applications with higher current requirements than an ordinary relay. In automation systems, these relays are often used to control larger motors and other high current applications that would otherwise require a large power load.

Design and Features

The 15721S2A5 is a robust and reliable relay that is compact in size and has a wide assortment of features. It is constructed with durable plastic and metal materials, painted for a corrosion and weather-resistant exterior. It is designed with four 12-24VDC coil options (12V, 15V, 24V, and 48V), and has a maximum load of 24 Amps. The package also includes two contact block pieces with a normally closed circuit contact rating of 2 Amps and a normally open circuit contact rating of 10 Amps.

The 15721S2A5 also features an LED indicator for monitoring the on/off state of the relay, as well as connections for surge suppression, aluminum oxide layer protection, contact burn-in protection, and thermal protection. The 15721S2A5 is rated for an ambient temperature range of -25 to +75 Degrees Celsius, and can withstand an operating temperature of 130 Degrees Celsius.

Application Field and Working Principle

The 15721S2A5 is commonly used in a variety of applications, such as motor control, switchgear, surge suppression, HVAC control, elevator control, and home automation. As a high-power relay, it is capable of handling higher current loads than traditional relays.

The basic working principle of a 15721S2A5 is quite simple. When the voltage supplied to the coil of the relay is sufficient to provide a current to magnetize the core, the contact circuits inside the relay will close, thus allowing the current to be diverted to the connected load. When the voltage supplied to the relay is no longer sufficient to keep the core magnetized, the contacts will open, and the connected load will be disconnected from the power source.

Conclusion

The 15721S2A5 is an innovative and highly reliable power relay. It is specifically designed for applications with higher current loads, and its features and versatility make it ideal for switching electrical current in a wide variety of situations. Whether you need to control a larger motor or need surge protection for your HVAC system, the 15721S2A5 is a great choice for any high-power application.

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