PQ1A-12V Relays

Switching Voltage:	250VAC, 110VDC - Max
Coil Resistance:	720 Ohms
Coil Power:	200 mW
Contact Material:	Silver Nickel (AgNi)
Operating Temperature:	-40°C ~ 70°C
Termination Style:	PC Pin
Mounting Type:	Through Hole
Features:	Sealed - Fully
Release Time:	10ms
Operate Time:	20ms
Turn Off Voltage (Min):	0.6 VDC
Turn On Voltage (Max):	9 VDC
Series:	PQ
Contact Rating (Current):	5A
Contact Form:	SPST-NO (1 Form A)
Coil Voltage:	12VDC
Coil Current:	16.7mA
Coil Type:	Non Latching
Relay Type:	General Purpose
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tube

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Introduction

PQ1A-12V is a type of power relay, specifically those that operate well with 2 or more amps. The relays can be used as control systems for a variety of applications, including electrical engineering, power systems, automation, and instrumentation. They feature a rapid on/off switching action, low power consumption, and a high endurance rating. In this article, we will explore the various application fields and the working principles of the PQ1A-12V power relay.

Application Fields

The PQ1A-12V power relay finds a variety of applications in the electrical engineering, power systems, automation, and instrumentation fields. Electrical engineering applications include devices that require frequent switching, such as relays in motor control circuits and high-current power supply switches. In power systems, they can be used as motor starters, distribution of HVAC systems, and remote control of devices. Automation applications often involve process control and machine control, such as load shedding, power distribution systems, and robotics. Finally, in instrumentation, relays hold devices in a steady state, allowing for the accurate measurement of systems.

Working Principle

The PQ1A-12V power relay is composed of a D-type contact and a coil surrounding the contact. When a voltage is applied to the coil, it produces an electromagnetic field, which attracts the contact. This causes the contact to close, allowing current to pass through the relay. When the voltage is removed from the coil, the electromagnetic field dissipates, releasing the contact, which then opens, preventing the flow of current. In order to ensure a strong electromagnetic field, high-voltage power relays are typically designed with large coils, though some may also use a series of small coils.

Conclusion

In conclusion, the PQ1A-12V power relay is a versatile device used in a variety of applications such as electrical engineering, power systems, automation, and instrumentation. Its working principle is simple; a voltage is applied to the coil, creating an electromagnetic field that attracts the contact and thus allowing current to pass through the relay. As such, these relays are highly reliable and well-suited for use in a variety of situations.

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