H3DK-M2A DC12 Industrial Controls

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Time Delay Relays:

Time Delay Relays, often simply referred to as time relays, are used to control, start, or stop an electric circuit at a specific time. They function by delaying a signal for a specific amount of time and then restarting the electric circuit. Time Delay Relays are most commonly used to control HVAC systems, motorized valves, and entrance and exit gates.

The H3DK-M2A DC12:

The H3DK-M2A DC12 is a time delay relay from OMRON Corporation. It is designed for controlling the amount of time a circuit is open or closed, and provides both short and long-term time delays. The unit is powered by 24-240V AC/DC or 12V DC, and provides a delay-on-start of up to 225 hours, along with a delay-on-release of up to 59 minutes. The H3DK-M2A DC12 also features an integrated timer mode and an adjustable operating current.

Application Field and Working Principle:

The H3DK-M2A DC12 is suitable for a wide range of applications, including security systems, motor starters, lighting systems, heating and cooling systems, and time-based control. It is simple to install and provides reliable and accurate performance for short and long-term timing applications. Its working principle is based on an electromechanical timer circuit, which operates by transferring an electrical current through the relay for a set amount of time before it opens the circuit again.

The H3DK-M2A DC12 acts as an on-off switch for electrical circuits. When the switch is activated, the Timer module receives electrical current, which is then transferred through the relay for a predetermined period of time. Upon expiration of this time period, the relay disengages and the switch reverts to its original position. This process can be repeated multiple times to control when the circuit is open or closed for different lengths of time.

The H3DK-M2A DC12 can operate in a range of timer modes, including delayed-on start, delayed-off start, delayed-on release, and delayed-off release. When the switch is in the delayed-on start mode, the timer delay begins when the relay receives electrical current and continues until the set time has elapsed. In contrast, when the switch is in delayed-off start mode, the timer is activated at the start of the relay being disconnected from the electrical current. Delayed-on release mode works similarly, except the timer begins upon disconnection from the electrical current and continues until the set time has expired.

Finally, in delayed-off release mode, the timer is activated when the relay is connected to the electrical current and continues until the set time. The timer delay and termination time can be adjusted using the integrated timer knob. The H3DK-M2A DC12 also features a selectable operating current, making it easy to adjust for different applications.

In summary, the H3DK-M2A DC12 is a versatile time delay relay from OMRON Corporation. It is suitable for a range of applications, including security systems, motor starters, lighting systems, and heating and cooling systems. The unit is powered by 24-240V AC/DC or 12V DC, and provides a delay-on-start of up to 225 hours, along with a delay-on-release of up to 59 minutes. Its working principle is based on an electromechanical timer circuit, which operates by transferring an electrical current through the relay for a set amount of time before it opens the circuit again. The H3DK-M2A DC12 makes it easy to control when an electrical circuit is opened or closed for different lengths of time.

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