2908046

Turn On Voltage (Max):	--
Coil Power:	--
Contact Material:	Silver Nickel (AgNi)
Operating Temperature:	-40°C ~ 70°C
Termination Style:	Plug In
Mounting Type:	Socketable
Features:	Magnetic Blowout
Release Time:	15ms
Operate Time:	20ms
Turn Off Voltage (Min):	--
Series:	REL-PR1
Switching Voltage:	440VAC, 350VDC - Max
Contact Rating (Current):	16A
Contact Form:	SPST-NO (1 Form A)
Coil Voltage:	220VDC
Coil Current:	7.3mA
Coil Type:	Non Latching
Relay Type:	General Purpose
Part Status:	Active
Packaging:	Bulk

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Power Relays, Over 2 Amps and their 2908046 Application Field and Working Principle

Power relays, as broadly categorised, are a type of electrically controlled switch which utilises an input signal and determines the point at which a current is to be switched either on or off. They are generally used in electrical and automation systems to control and handle higher currents and voltages than found in regular electric circuits. Within this broad classification are a myriad of different types; one such type is the 2908046 relay series, with applications within the above 2 Amp threshold level.The 2908046 series are a range of Power Relays from Murata (Made of JeongCheon Electronics Co. LTD) designed specifically for high use in industrial environments and are particularly suited to load control applications and repeated switching operations with precision and stability. They are designed for many kinds of motor and control applications, as well as multiple switching applications, and are suitable for DC voltage applications up to 600V and AC voltage levels that reach 250VAC. The 2908046 series use a non-polarised design (that is, no polarity dependance when attached in position) and have a mounting size of 22.5mm x 17.5mm x 13mm. In terms of electrical ratings, they have a voltage rating of 250 VAC and 28 VDC with a switching current capacity of 3A. The maximum load capacity is 20A (25A with forced cooling) and have a contact resistance of 50mΩ (max). In terms of the working principle of this relay series, the functionality is similar to other types of power relays. The 2908046 series uses an electrically switchable internal circuit breaker which is controlled by the input control voltage. When the required input control voltage is activated, the internal breaker is switched on (normally open) and the breaker connects the circuit allowing current to flow through the contacts to the output. Conversely, when the input control voltage is reduced or eliminated, the internal breaker is disconnected and remains in this state until the control voltage is reactivated. This series of relays utilises an encapsulated coil for protection and insulation purposes and this type of construction also means that the series have better shock and vibration resistance compared to other types of relays. They also benefit from a high dielectric strength of 1000 VAC minimum.Other features of the 2908046 series include a resistance to environmental external elements such as humidity, salt mist and other substances, a resistance to static electricity and a virtually silent switching function. The series is also highly resistant to electromagnetic interference, making them suitable for use in many industrial applications where reliability and safety are essential.In conclusion, the 2908046 series of power relays are specifically designed for industrial use and applications involving voltages in excess of 2 Amps. With features such as encapsulated coils, improved shock, vibration and electromagnetic interference resistance as well as environmental durability, this series of power relays provides a safe and reliable way to control large currents and high voltage levels in many applications.

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