H3M-AC220-B

Series:	H3M
Part Status:	Obsolete
Mounting Type:	Socketable
Relay Type:	Mechanical Relay
Function:	On-Delay
Circuit:	DPDT (2 Form C)
Delay Time:	0.1 Sec ~ 10 Min
Contact Rating @ Voltage:	5A @ 250VAC
Voltage - Supply:	220VAC
Termination Style:	Plug In, 8 Pin (Octal)
Timing Adjustment Method:	Hand Dial
Timing Initiate Method:	Input Voltage

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Time Delay Relays

Time delay relays are devices used to control the operation of electrical equipment in terms of time. They open or close a circuit at a pre-set time after being powered up. Time delay relays are typically used in applications where remote operation of equipment is necessary. They are also valuable in situations where a device must be switched off after a period of time without user intervention.One example of a time delay relay is the H3M-AC220-B. This device is a one-time AC plug-in circuit timer with a snap-in base. It is a plug-in time-delay relay, designed to switch on or off loads through a specified time interval.

H3M-AC220-B Application Field

The H3M-AC220-B is suitable for use in a variety of applications. It can be used to control the switching of a fan in ventilation systems, or to control a machine\'s on/off cycle at specific intervals. It can also be used in home appliances and industrial machines as a time control switch, to ensure that electrical devices are switched off before a certain time. The relay can also be used for time-delay door closers, lighting or heating and cooling systems, or for monitoring time-dependent activities.

H3M-AC220-B Working Principle

The H3M-AC220-B is a time-delay relay that works by using a timer to control the switching of loads. It is powered up by a 220V AC feed, with a 20A load rating and 15A switch rating. The timer can be set to activate from 0.1 seconds to 9 hours, with a selection of 8 preset times for easy setup.The relay consists of two components: a time delay control unit and an output switch. The control unit sets the desired delay time of the relay, and when triggered, activates the output switch, which switches on or off the connected load. The time delay control unit also incorporates a safety override feature, which automatically turns the output switch off if the power supply exceeds its rated current. This enables the device to safely switch off any connected loads.In conclusion, the H3M-AC220-B is a time delay relay that is used to control the switching of loads. It has a range of preset times, safety override features, and can be used in a variety of applications. It is an effective way to ensure equipment is switched off at the desired time.

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