RMD3H48MA40 Relays

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The RMD3H48MA40 from Panasonic is a solid state relay (SSR) that is ideal for applications involving high-density control systems in an industrial environment. It is one of the more cost-effective SSRs currently available on the market. The RMD3H48MA40 has plenty of features that make it attractive to engineers, including a low on-resistance of 0.1Ω, a hysterisis loss of 1.5mV, and a maximum input operating current of 3Amps.

The main purpose of the SSR is to provide isolation between the input (controlling voltage) and the output (controlled voltage) of a device. This can be useful in situations where one part of the circuit needs to be isolated from the other in order to protect it from overvoltage, short circuit, or electrostatic discharge. It provides an extremely fast switching time, allowing for precise control of the device it is connected to. With its small form factor, the RMD3H48MA40 is ideal for use in small, confined places.

The RMD3H48MA40 is a 3-phase SSR, designed for use with AC loads with a maximum rating of 200 amps. It can be mounted on a Heat Sink or panel, providing flexibility in installation. Due to its large surge-withstand rating, it is often used in harsh environments, such as food processing or mechanical environments, as it can withstand high temperatures and mechanical loads.

The RMD3H48MA40 offers a wide input voltage range, of between 6 to 40 volts AC, making it suitable for many applications. The SSR is also capable of detecting currents as low as 1 mA, providing a response time of less than 1 ms. This feature, combined with its high switching capability, makes the RMD3H48MA40 suitable for use in high-end industrial automation applications as well.

The RMD3H48MA40, like all SSRs, works on the principle of an internal thyristor or triac. When the constant input voltage is applied to the controlling device, the thyristor or triac is triggered to switch the output on or off. The switching time depends mainly on the configuration of the SSR, the input voltage, and the load current. This switching time can range from 1 to 20ms, depending on the load type.

The main benefit of using a SSR is that it can provide reliability and flexibility with no maintenance costs. It also does not require regular re-calibration. This makes the SSR an ideal choice for industrial control applications, which require high performance and reliable switching. The RMD3H48MA40, with its impressive operating characteristics, is an excellent choice for any AC load control system.

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