3SBH1230A2

Signal relays are electrical switches used to control and automate the flow of electricity in an electrical system. Their main purpose is to turn on and off the power supply to protected electronic or electric devices. The 3SBH1230A2 signal relay is one such device, specifically designed for applications where very precise current control is required up to a maximum of two amps. It is a high quality, easy to use, cost-effective solution for many common electrical protection and automation needs.

Design and Features

The 3SBH1230A2 signal relay is a plunger-type, non-latching device. It is designed for use in either ambient temperature or sealed environments such as watertight enclosures. It features a PDT (positive guided trip) mechanism that provides greater accuracy and reliability in operation over other signal relays that are available. The maximum current rating of two amps is sufficient for powering most two-wire circuits. The contact system is completely encapsulated to protect against dust, vibration, shock, and moisture.

The 3SBH1230A2 incorporates a power-on-delay feature that delays the powering of the protected circuit until after the relay contacts have closed. This prevents inrush currents from overloading the protected circuit. It also reduces the chance of false trip due to load inrush or to contact bounce. The contact pressure can be varied by adjusting the plunger angle as needed for the application.

Application Field and Working Principle

The 3SBH1230A2 is commonly used in industrial automation applications, as well as process control systems. It can be utilized to control the operation of pumps, motors, and other equipment. The 3SBH1230A2 is particularly ideal for applications that require low current control with minimal power losses. The signal relay is an ideal choice for applications in agriculture, solar energy, medical devices, scientific instruments, water treatment, and many other industrial sectors.

The 3SBH1230A2 works by sensing the electrical current in the circuit. When the current reaches a certain level, the plunger-type relay contacts close, activating the protected circuit. The relay has a highly sensitive detection circuit and an internal self-diagnostic system that ensures proper operation and prevents overcurrents. The reliable performance and user-friendly features make the 3SBH1230A2 signal relay a great choice for a variety of industrial and process control applications.