CC4850D2V

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Solid state relays (SSRs) are electronic switching devices that function as a traditional mechanical relay, but are constructed using semiconductor technology. As such, the internal construction of an SSR is composed of either a light emitting diode (LED) or a photo-transistor (a "sensing" element) together with a set of electrical contacts that form the circuit. In contrast to an electromagnetic relay, SSRs do not rely on electromagnetic forces to activate contacts. Instead, voltage applied to the LED causes the Photo-transistor to be activated, which in turn unlocks the relay through a series of semiconductor switches. SSRs are generally smaller, quieter, faster, and more reliable than electro-mechanical relays, and have become the norm for industrial automation.

The CC4850D2V is a solid state relay from Crydom. It is a daisy chain configuration of two SPST, 50 Amp, 600VAC which allows for multiple relays to be stacked together in order to better control multiple circuits. The CC4850D2V is mainly used in sectors such as industrial automation, HVAC, temperature control, and voltage regulation. It offers flexibility in the way of paralleling and multiplexing with other SSRs, allowing for greater control and efficiency.

The CC4850D2V utilizes an optically isolated Zero Cross FET output and dual-pole latching to achieve high speed switching in the range of 0.5 to 20kHz. An integrated flyback clamp circuit provides reverse polarity protection, and the temperature range is from -55°C to +125°C. The CC4850D2V is available with either 0 to 15Vdc or 4 to 20ma control voltages and requires only 4mA control current for full load switching.

Typical applications for the CC4850D2V include motor control, multiplexed systems, and impedance matching. The CC4850D2V\'s low operating cost and cost effective design make it perfect for general purpose AC switching. For motor control, the CC4850D2V\'s fast switching times make it ideal for pulse width modulation (PWM) applications, while its unique parallel or multiplex control input allows for complete phased control.

The CC4850D2V is capable of providing over-temperature and over-current protection, allowing for a safe and reliable operation. The current and temperature sensing elements protect the relay from faults, and enable the control CPU to shut the system off as soon as any potentially hazardous conditions are detected. The temperature detecting feature is also able to detect AC line current. It allows for monitoring of current drawn while the relay is in operation, and shuts the system off as soon as the current goes over its preset level. This ensures long and safe operation of the relay.

From industrial automation to safety and protection equipment, the CC4850D2V can offer reliable and cost effective solid state relay solutions. It is a perfect choice for applications that require a fast switching, versatile and reliable solid state solution at a budget-friendly cost.

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