H3BH-N8 220 VAC M Industrial Controls

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Time Delay Relays have been used in many applications to provide safety and automation, and the H3BH-N8 220 VAC M is no exception. It is a versatile device that can be used for a variety of applications. The relay offers a number of features that make it an attractive choice for applications requiring delayed, pulse, or timed-controlled switching. In this article, we will discuss the application field and the working principle of H3BH-N8 220 VAC M.

Application Field

The H3BH-N8 220 VAC M is an electromechanical relay, which is used to switch electrical loads for a certain time. It is commonly used in applications such as lighting control, security systems, HVAC control, motor control, machine automation, building automation, and industrial automation. Because of its versatility, it is suitable for many different applications. It is also used in safety applications, where a delay is needed for interlock before the load is switched on. The relay offers a wide range of options for timing interval, from 0.5 seconds to 60 minutes, and can be adjusted using a rotary knob. In addition, the relay is available with a start/stop switch, which allows the user to control the timing, or a self-programmable timer, which can be set by a user.

Working Principle

The working principle of the H3BH-N8 220 VAC M is based on electro-mechanical switching. The relay has two coils, one for opening the relay and one for closing the relay. When electricity is applied to the first coil, the relay will be opened and the second coil will be energized. When the energy is removed from the first coil, the relay will close and the second coil will be de-energized. The time delay, or time programming, is achieved by controlling the flow of current to the coils. The currents for opening and closing the relay are adjustable, which allows the user to set up a desired timing interval. The timing interval can be adjusted using the rotary knob or the start/stop switch.

In addition, the H3BH-N8 220 VAC M has features such as an adjustable time contact, auxiliary voltage contact, and an adjustable diffused arc. The adjustable time contact allows for a delay before the relay starts to work, while the auxiliary voltage contact allows for a fixed voltage to be applied after the time delay has elapsed. The adjustable diffused arc reduces arcing and increases life expectancy of the relay.

The H3BH-N8 220 VAC M is a versatile device that can be used in a variety of applications requiring time delayed or timed switching. It is easy to set up and program, and offers a wide range of options for timing intervals, adjustable contacts, and auxiliaries. Its wide range of features makes it an attractive choice for applications that require time delayed, pulse, or timed switching.

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