G9EC-1-B DC12 Relays

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Power relays, operating at over 2 amperes, refer to devices that can switch AC or DC current, with an input control signal from a logic circuit or low-level current. The G9EC-1-B DC12 is one such device.

The G9EC-1-B DC12 is an 8-pin power relay with a nominal control voltage of 12 VDC, designed for multiple control ranges up to 2 A. It can be used for a variety of applications, including lighting control, motor control, process control, and switching general-purpose loads.

The ingress protection for the G9EC-1-B DC12 is IP65, which means that it is suitable for most outdoor applications. The device offers an electrical lifetime of 100,000 operations, and features a feature an LED indicator for confirmation of switching, along with coil suppression to reduce surge voltage.

The G9EC-1-B DC12 operates on the latching principle. In this system, two coils are used, a main coil and an auxiliary coil. When power is supplied to the main coil, it energizes a magnetic field, which causes the armature to move and connect the load terminal to the contactor. At the same time, the auxiliary coil is energized, and this causes the armature to remain in the energized position.

When power is removed from the main coil, the armature remains in the energized position due to the energy storage in the auxiliary coil. In this state, the auxiliary coil can be used to switch off the relay by applying a short pulse of current, which allows the armature to move back to the non-energized position. This makes the latching type of relay very efficient for power savings.

The G9EC-1-B DC12 also features a zero-voltage switching (ZVS) function, which eliminates contact sparking and arcing. This eliminates the sparks that can occur when the electrical contacts break, reducing electrical noise and wear and tear on the unit.

Furthermore, the relay features a functional safety rating of F0012, which means it can be used for safety critical applications. This is achieved thanks to the use of redundant contactors, along with other features such as temperature monitoring, over-voltage protection, and coil suppression.

To increase versatility, the G9EC-1-B DC12 is designed with two terminals for control, allowing the user to select either Normally Open or Normally Closed operation.

Overall, the G9EC-1-B DC12 is a versatile and reliable power relay for applications requiring over 2 amperes. Thanks to its ingress protection rating, latching coil, zero-voltage switching, and additional safety features, the device can be relied upon to provide reliable operation in a variety of applications.

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