84138101

Solid State Relays (SSRs) are advanced technological devices that switch on, track, and control electrical loads. The 87138101 is a type of Solid State Relay that is used in Automation & Process Control Systems for AC power control applications when switching low to medium power electrical circuits. The device is capable of switching AC loads up to 650VAC @ 40A and DC loads up to up to 340VDC @40A. It is a proportional control device, meaning it can be used to fine-tune the amount of power supplied to the connected electrical load by modulating a range of values between 0-100%.

The 87138101 uses an Electronic Gate Switching Technique – called "Gate Turn-off Switching Technique" or GTO, which allows it to switch quickly between a high voltage off-state and a low voltage on-state. This is done using a circuit composed of two SCRs (Silicon Controlled Rectifiers). The SCRs are placed at the gate of the transistor, making the transistor analogous to a switch. When the input signal voltage (control voltage) is applied to the gate of the SCR\'s, the SCR\'s charge, allowing current to flow through the transistor.

The 87138101 also employs a new self-locking system called "Dynamic Current Control" or DCC. This method ensures that no additional current is needed to keep the device in the ON state and thus minimizes power consumption. It also provides a better stability of the output current over a wide range of temperature variations. This makes the 87138101 an ideal choice for applications where reliable operation is essential.

The 87138101 has a wide range of applications, ranging from motor control & process control, to lighting & heating control. In motor control applications, the device is used to control the speed and direction of a motor, as well as to regulate its speed. In process control applications, it is used to accurately control and monitor the flow of liquids and vapours. For lighting applications, the device is used to adjust the brightness of lamps and light fixtures. In heating control applications, it is used to regulate the temperature of boilers, ovens and other heating elements.

In conclusion, the 87138101 is an advanced Solid State Relay that can be used for a variety of applications. Its ability to switch quickly between a high voltage off-state and a low voltage on-state and its self-locking system makes it an ideal choice for many automation and process control systems.