DRC3R48D420

Series:	Solicon DRC
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Circuit:	3PST-NO (3 Form A)
Output Type:	AC
On-State Resistance (Max):	--
Load Current:	7.6A
Voltage - Input:	18 ~ 30VAC/DC
Voltage - Load:	48 ~ 510 V
Mounting Type:	DIN Rail
Termination Style:	Screw Terminal
Package / Case:	Module
Supplier Device Package:	--
Relay Type:	Contactor

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• Introduction

The DRC3R48D420 contactor is a solid state contactor produced by Automation Direct. It is a Voltage Output Off-Delay Relay, which allows for temporal control and is used in applications requiring the control of an inductive load, such as motors or inductive heating elements. This contactor provides a N.O. (normally open) output, which can be triggered from an external switch or from other control signals. It can operate in either timed on modes, continuous on modes and off-delay modes.

• Construction

The DRC3R48D420 contactor is constructed from a stainless steel enclosure which contains the electrical components. The enclosure contains a power supply, a solid state relay, a thermal protector, a timing circuit and a capacitor to keep the switching circuit operating. The thermal protector is used to prevent overheating of the contactor, which can occur with excessively high loads or in prolonged periods of continuous operation. The power supply is used to provide power to the relay and the timing circuit, while the capacitor is used to ensure the longevity of the contactor.The contactor is connected to an external switch or control signals via wiring which runs through the enclosure. The external switch or control signals must be connected to an appropriate voltage rating in order to operate the contactor.

• Operation

The operation of the DRC3R48D420 contactor is based on a timing circuit. When the contactor is triggered, the voltage output is opened and a timing cycle begins. During this cycle the capacitor charges up and, when it reaches the set limit, a signal is sent to a solid state relay, which then closes the contactor output. At the end of the cycle, the capacitor discharges and the contactor remains in the closed output state.The time delay of the cycle is determined by the value of the capacitor and can be adjusted to cater for different load requirements. The thermal protector is used to prevent the contactor from overheating due to excessive loads, and should be set to a temperature that is not expected to be exceeded during normal operation.

• Applications

The DRC3R48D420 contactor can be used in a variety of applications which require temporal control of an inductive load. Examples of these applications include motor control, heating element control, lighting control and process control. It can also be used with external switches or control signals to provide timing functions for more complex applications.The contactor is suitable for use in both indoor and outdoor environments. It is rated for use with up to 480VAC, and has a contact rating of 48A. It is also UL recognized, which indicates that it has been tested in accordance with applicable safety standards.

• Conclusion

The DRC3R48D420 contactor is a solid state contactor designed for the control of inductive loads. It operates on an on-delay timer and is suitable for use in both indoor and outdoor applications. It is UL recognized and rated for up to 48A at 480VAC. The contactor can be used with external switches or control signals to provide timing functions, making it a versatile and reliable choice for many applications.

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