VF4-45F11

Turn On Voltage (Max):	7.2 VDC
Coil Resistance:	90 Ohms
Coil Power:	1.6 W
Contact Material:	Silver Nickel (AgNi)
Operating Temperature:	-40°C ~ 125°C
Termination Style:	Plug In, Quick Connect - 0.250" (6.3mm)
Mounting Type:	Chassis Mount
Features:	--
Release Time:	2ms
Operate Time:	7ms
Turn Off Voltage (Min):	1.2 VDC
Series:	VF4
Switching Voltage:	14VDC - Nom
Contact Rating (Current):	40A
Contact Form:	SPDT (1 Form C)
Coil Voltage:	12VDC
Coil Current:	133mA
Coil Type:	Non Latching
Relay Type:	General Purpose
Part Status:	Obsolete
Packaging:	Bulk

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Power Relays, Over 2 Amps: VF4-45F11 Application Field and Working PrincipleThe VF4-45F11 by Omron is an advanced power relay designed to serve many industries and protect electrical components against overcurrent and short circuits. This power relay is capable of switching large currents up to 45A at 250VAC and provides a variety of safety features such as a voltage detecting circuit, over-current sensing, current limiting, and inductive kickback protection. This power relay is suitable for a variety of applications, including motor control, UPS systems & industrial devices, automotive and transportation.Features and Benefits of VF4-45F11The VF4-45F11 is a powerful power relay designed to handle very high currents. It has a fast response time of 4ms and a built-in voltage detector circuit that can detect the voltage of an incoming current very quickly. The over-current sensing feature helps ensure that the relay does not trip during overloads. The current limiting feature helps to reduce the electrical load on the system, while the inductive kickback protection ensures that the relay will not be damaged by inductive spikes.The relay also offers a variety of features to ensure operator safety. For example, the built-in surge protection circuit provides protection against any potential power surges. Additionally, the power failure point detection feature makes it possible to detect a sudden power failure and shut down the system before any operational damage occurs. The protection against abnormal operation includes the temperature monitor to detect overheating by monitoring the switching frequency.Working Principle of VF4-45F11The VF4-45F11 works in two stages. In the first stage, when the supply voltage is switched off, the relay will immediately disconnect the load. This helps to prevent any electrical damage to the system. In the second stage, the relay will sense the incoming power, detect if it is above the rated voltage, and if it is, then the relay will switch off the supply voltage to the load. This protects the system from overvoltage and overheating. The relay also has a manual reset button to quickly reset the relay after a power failure or overload. This helps to ensure that the relay is ready to start the cycle again and stay in a good operational condition.Applications of VF4-45F11The VF4-45F11 can be used in a variety of industries and applications. It is designed to provide reliable protection in motor control, UPS systems, industrial equipment, automotive and transportation, and other industrial environments. The fast response time of 4 milliseconds and the various safety features make it an ideal choice for these industrial applications.The VF4-45F11 is an excellent choice for motor control, as it can handle large currents and detect overcurrents and short circuits very quickly. It is also ideal for UPS systems, as it will provide surge protection and current limiting features. Industrial equipment can benefit from the temperature monitoring and protection against abnormal operation and power failure point detection features. Automotive and transportation applications can take advantage of the quick response time of 4 milliseconds, which ensures that the power distribution system is protected against potential power surges and other faults.ConclusionThe VF4-45F11 by Omron is a powerful power relay designed to provide reliable protection in a variety of industrial environments. It has a fast response time of 4 milliseconds and is able to handle large currents up to 45A at 250VAC. The built-in voltage detector circuit, over-current sensing, current limiting, inductive kickback protection and other safety features help ensure that the system is protected from potential faults and power surges. The VF4-45F11 is suitable for many different applications, including motor control, UPS systems, industrial devices, automotive and transportation.

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