2903343

Turn On Voltage (Max):	--
Coil Resistance:	38.33 kOhms
Coil Power:	1.38 W
Contact Material:	Silver Nickel (AgNi)
Operating Temperature:	-40°C ~ 50°C
Termination Style:	Screw Terminal
Mounting Type:	DIN Rail
Features:	LED Indicator, Varistor
Release Time:	20ms
Operate Time:	12ms
Turn Off Voltage (Min):	--
Series:	RIF
Switching Voltage:	30VAC, 36VDC - Max
Contact Rating (Current):	50mA
Contact Form:	DPDT (2 Form C)
Coil Voltage:	230VAC
Coil Current:	6.0mA
Coil Type:	Non Latching
Relay Type:	General Purpose with Socket
Part Status:	Active
Packaging:	Bulk

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Signal Relays, Up to 2 Amps: 2903343 Application Field and Working Principle

Signal relays are one of the most crucial components for electronic engineering applications, as they are used in a variety of areas such as industrial and consumer devices. Signal relays can handle up to 2 amps and provide both overcurrent and overload protection. This article will discuss the application fields and working principles of 2903343 Signal Relays, a type of signal relay from ABB.

Application Field of 2903343 Signal Relays

The 2903343 Signal Relay from ABB is a high-power device with a 2-amp/250VAC rating. It is designed for use in applications that require high power and reliability. It is used in a variety of applications including industrial motor control, lighting equipment, communication equipment, automotive equipment, and home automation devices. The 2903343 Signal Relay is designed with a double-throw contact system which allows the relay to switch between two or more circuits. This feature allows it to be used for switching both AC and DC powers. The relay also features a ceramic substrate and several contact options such as gold, silver, and palladium silver. The relay also has a high electrical insulation rating, which makes it suitable for use in high-voltage applications.

Working Principle of 2903343 Signal Relays

The 2903343 Signal Relay is a two-pole device that consists of two sets of contacts connected by an energized coil. When a current is applied to the coil, it generates a magnetic field which attracts the armature and closes the contacts, thus completing the switch. When the current is removed, the armature is released, and the contacts open. The 2903343 Signal Relay is designed with a short-circuit protection system which prevents current overloads. In the event of an overload, the relay automatically de-energizes and trips the overload protection circuit breaker. This feature makes the 2903343 Signal Relay suitable for use in a variety of applications that require reliable and safe operation. In addition to its overload protection system, the 2903343 Signal Relay also has a high shock rating. The relay is tested for mechanical strength and durability and is designed to withstand up to 10kV of mechanical shock. This feature ensures that the relay can handle the harshest vibration or shock environments.

Conclusion

The 2903343 Signal Relay from ABB is a high-power device that can handle up to 2 amps and provide both overload and overcurrent protection. It is designed with a double-throw contact system which allows the relay to switch between two or more circuits, making it suitable for both AC and DC power switching. The relay is also designed with a short-circuit protection system and a high shock rating, making it a reliable and safe choice for a variety of applications.

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