H3JA-8A 200-240VAC 30M

Series:	H3JA
Part Status:	Obsolete
Mounting Type:	Socketable
Relay Type:	Mechanical Relay
Function:	On-Delay
Circuit:	SPDT (1 Form C)
Delay Time:	3 Min ~ 30 Min
Contact Rating @ Voltage:	7A @ 250VAC
Voltage - Supply:	200 ~ 240VAC
Termination Style:	Plug In, 8 Pin (Octal)
Timing Adjustment Method:	Hand Dial
Timing Initiate Method:	Input Voltage

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Time Delay Relays, as the name suggests, are relays with time delay features. H3JA-8A 200-240VAC 30M is one such device. It is an electronically operated age delay relay with a characteristic long on time that can switch control outputs with three sets of time delays. It operates under electric power from a single-phase AC power source of 200-240VAC. In this particular model, the time delay is set at 30M, meaning it can be customized to a 30-minute time delay. Application Field This electronic time delay relay can be used for various purposes where it is necessary to delay a control switch or relay output. It can be used for purposes such as switching off unnecessary electricity in a certain area or factory room when no one is present. It is also used to delay the start of certain kinds of motors and equipment, such as combustion motors and compressors. It is widely utilized as timer in many commercial, industrial and domestic systems. Examples include providing a delayed start for pumps, ovens, blowers, compressors, and fans, and other process control applications, such as controlling access to building, lighting and other, etc. Some common applications of the H3JA-8A 200-240VAC 30M time delay relay can be seen in the water and sewage systems, instrumentation systems, monitoring systems and automation systems. It can also be used in heating, ventilation, and air conditioning (HVAC) systems and in industrial machinery. Working Principle The working principle behind the H3JA-8A 200-240VAC 30M time delay relay is relatively simple. It comes with preset delays within a range of 30 minutes. It is operated using an electric motor that requires a single-phase AC power source of 200-240VAC.The device works on principle of trickle charge technology, where electric energy flows from low DC voltage source to time setting capacitor via electronic current-regulated device. When the time delay relay is turned on, the voltage is applied to the timing capacitor. As the time passes, the voltage gradually increases. When the capacitor is fully charged, the relay responds and the switching output is activate. The time delay can be programmed using internal digital control - setting the time delay according to the requirements of the application. This time delay relay is available with 1 to 3 outputs, where the control output can be used to switch the motor on and turn it off. In conclusion, the H3JA-8A 200-240VAC 30M time delay relay is an efficient and reliable device that can be used in various industrial and domestic applications. The working principle of the device makes it reliable, as it allows for precise time-delay settings for specific situations. Furthermore, the efficiency of this device can be seen in its various applications, where it plays an important role in controlling the start time of different systems and motors.

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