H3BF-N8 220 VAC Industrial Controls

Series:	H3BF-N
Part Status:	Active
Lead Free Status / RoHS Status:	--
Relay Type:	Mechanical Relay
Moisture Sensitivity Level (MSL):	--
Function:	Repeat Cycle, Twin Timer
Circuit:	DPDT (2 Form C)
Delay Time:	0.05 Sec ~ 30 Hrs
Contact Rating @ Voltage:	5A @ 250VAC
Voltage - Supply:	220VAC
Mounting Type:	Socketable
Termination Style:	Plug In, 8 Pin (Octal)
Timing Adjustment Method:	Hand Dial
Timing Initiate Method:	Input Voltage

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Time Delay Relays

H3BF-N8 220 VAC application field and working principle

Time Delay Relays are a type of electrical equipment often used for both commercial and residential purposes in providing protection against short circuit currents, overvoltage and undervoltage conditions, as well as abnormal frequency fluctuations. This article focuses on the H3BF-N8 220 VAC Application Field and Working Principle of this type of relay.The H3BF-N8 220 VAC application field includes areas such as timing control of AC circuits, voltage regulation of AC circuits, circuit protection, office automation, and other industrial control systems. This type of relay works by opening or closing of a contact when the voltage in an AC circuit reaches a certain level and for a specified amount of time. In simple terms, it is an electromechanical system that is activated when an electric current of a specified level is detected.The operation of a Time Delay Relay is divided into two main parts: the timing control and the contact’s open/close action. The timing control is based on the concept of the voltage applied to a coil and the necessary time required for it to respond, as well as the requirement of a continuous input voltage. This is determined by the timer section of the relay. The contact control is based on the contacts open/close action, which is initiated by both instantaneous and time delayed effects. The primary components of a Time Delay Relay are the contact, the timer, and the coil. The contact is the part of the relay that opens and closes the electrical circuit, while the timer allows the user to control the time taken for the relay to respond to an input voltage. The coil is used to generate an electric current from the input voltage, which then activates the timer.The working principle of the H3BF-N8 220 VAC relay is relatively simple and is based on the concept of power-on time adjusting of the voltage in an AC circuit. When the input voltage reaches the specified level, the relay timer begins to count down. When the count down reaches zero, the relay contact closes, thus establishing an electrical connection between the input and output circuits. To operate the relay correctly, two parameters need to be configured properly: the input voltage and the time delay. The input voltage can be adjusted on the relay by setting its input selector switch. The time delay can be adjusted on the timer by setting the start time and end time settings. Once these parameters are configured correctly, the relay will begin to respond to changes in the voltage at the defined time intervals.In conclusion, the H3BF-N8 220 VAC Time Delay Relay is a useful and versatile device that can be used for various purposes and applications. Its user-friendly design allows a user to easily configure the input voltage and the timer for optimum performance. By understanding its working principle and the various components that make up the relay, users can effectively and safely use the relay for their desired purpose.

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