RT4S4S15

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Power Relays, Over 2 Amps

RT4S4S15 is a low-cost, highly reliable, medium-power solid-state relay (SSR) for switching a printed circuit (PC) board loader/unloader. It is suitable for modifying relays to serve bigger power loads and higher switching frequencies.

The RT4S4S15 has a maximum current rating of 25A and a contact rating of 250VAC, at indutances up to 4.5 A. It is rated at 800V electrical insulation and 90V dielectric strength. The relay is suitable for controlling loads of up to 25A, and has a response time of less than 1ms for a 10A load.

The RT4S4S15\'s switching mechanism utilises 0.6mm thick N-type MOSFETs, which provide a low on-state resistance and high speed switching, making it suitable for controlling electric motors, lighting, drive circuits or other load up to 25A. Its low power consumption during switching, together with the low thermal resistance (Thermal Resistance: <55°C/W) makes it ideal for use in applications with high ambient temperatures.

The relay is also RoHS compliant, which makes it very desirable for adoption in applications where environmental safety is a major concern. Besides that, the relay also boasts good load-carrying capacity, with a no-load contact rating of 4KV and a contact resistance of <5 mΩ.

In terms of applications, the RT4S4S15 is suitable for use in industrial automation, robotics, lighting, and audio/video systems. For robotics, its fast response time make it suitable for applications where the robot needs to react quickly to external events before making its next move. Its low power consumption also makes it ideal for applications where power efficiency is essential.

The working principle for this relay is quite simple. When switched on, it will connect the load to the power supply, allowing current to flow. This in turn causes the MOSFET to become conducting, and depending on the type of load, this can either control or switch on/off the load. When current is no longer flowing, the MOSFET switches off and breaks the connection between the load and the power supply, thus deactivating the load.

In conclusion, the RT4S4S15 offers maximum current ratings of 25A and one of the highest switching speeds available in the market, making it the ideal choice for medium-power, high-speed applications in industrial automation, robotics, lighting, and audio/video systems.

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