H3JA-8C AC100-120 10S Industrial Controls

Series:	H3JA
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Relay Type:	Mechanical Relay
Moisture Sensitivity Level (MSL):	--
Function:	On-Delay
Circuit:	DPDT (2 Form C)
Delay Time:	1 Sec ~ 10 Sec
Contact Rating @ Voltage:	5A @ 250VAC
Voltage - Supply:	100 ~ 120VAC
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 RelaysTime delay relays are useful in a variety of applications where their main purpose is to provide a time-based electric switching function, triggered by an input control signal. The specific type of time delay relay that we will be discussing in this article is the H3JA-8C AC100-120 10S. We will be examining the application fields in which this type of relay can be used, as well as its working principle.When it comes to the application fields in which a H3JA-8C AC100-120 10S time delay relay can be used, they are quite varied. It is primarily used in industrial environments, as they have a variety of uses in automated systems. They can be used to regulate the timing of machines, control the on/off cycles of pumps or motors, and even control the speed at which components or systems move. Additionally, they are used to differentiate window and door openers, as well as for stairwell and elevator management.The working principle of the H3JA-8C AC100-120 10S time delay relay is relatively straightforward. It utilizes a control signal to trigger an adjustable timer, which in turn can trigger an output switching action when a predetermined time period has elapsed. This time period can be adjusted from anywhere between 10 and 100 seconds, making it particularly useful in regulating the timing of mechanical and electrical systems.The H3JA-8C AC100-120 10S time delay relay also works by the timer being triggered by a control signal, but instead of an adjustable timing period, it works with a fixed timing period of 10 seconds. This is useful in applications where the time period needs to be precise and static, such as with door and window openers. The control signal can be generated by a variety of sources, ranging from electricity (AC or DC) to a light sensor or other various types of temperature and pressure changes.The general construction of the H3JA-8C AC100-120 10S time delay relay consists of five main components; the controller, the timer, the contactor, the contacts, and the coil. The controller can be one of a variety of sources such as a magnetic switch, a mechanical switch, or even an electronic control signal. The timer is used to measure and control the preset time delay, and it typically consists of a rotatable silver wheel or disc. The contactor is responsible for switching the system on when the preset time has elapsed, and it is usually made of a type of metal such as copper or bronze. The contacts then provide a connection to the contactor, and they come in single contact, double contact, and contactor with auxiliary contact forms. The coil binds the relay together and provides the necessary magnetic force to cause a signal when the relay is triggered.In summary, the H3JA-8C AC100-120 10S time delay relay is an extremely useful device for use in a variety of industrial settings and applications. Its primary purpose is to provide a time-based electric switching function, triggered by an input control signal. Its application fields range from controlling the timing of machines, pumps, and motors, to differentiating window and door openers, as well as stairwell and elevator management. Its working principle is relatively straightforward – a control signal causing an adjustable or fixed time period to elapse before the output switching action occurs. And its construction consists of a controller, timer, contactor, contacts, and a coil.

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