1887102-3

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Part Status:	Active

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Power Relays, Over 2 Amps - 1887102-3 Application Field and Working Principle

Rugged, yet reliable, the 1887102-3 is an industrial-grade power relay indicated for use in applications such as HVAC, motor control, audio and video systems, electronics devices, and various industrial and household devices. This device is especially popular in Europe and can handle up to 2 performance-sensitive projects such as video projectors, motorized stage, and dimmers.

Construction and Design

The 1887102-3 power relay is made of durable plastic-metal composite construction for superior heat dissipation and shock/vibration resistance. It features a compact (37.4mm x 36mm x 13mm) enclosed enclosure design with four screw terminals on the rear which is visually appealing and facilitates mounting.

Input/Output Connectivity

The 1887102-3 power relay has one Normally Open (NO) and one Normally Closed (NC) contact which can be connected to different voltages based on the specific application. The input and output connectors accept 18 AWG or smaller wire. They operate at a maximum input voltage of 250VAC and current of 5A. The contacts are designed to handle up to 2 amps, but they should not be used at higher current ratings since the device will become heated.

Control Signal and Working Principle

The 1887102-3 power relay is controlled by an 80mA signal obtained from either on-board or external controllers. When the signal is switched on, it connects the common (C) terminal to the normally open (NO) terminal and activates the relay. The relay then switches between normally open and normally closed positions depending on the signal status. The relay will remain in its current state even if the control signal switches off.

Auxiliary Features

The 1887102-3 power relay includes a built-in LED indicator which lights up when the relay is activated and off when deactivated. It also comes with a Self Reset Modulation (SRM) which automatically cuts the power to the relay in case of a fault in order to protect it from damage. This feature is especially useful in applications that handle high voltage. The 1887102-3 power relay is UL-recognized and RoHS compliant. It is highly durable and can withstand shock, vibration and temperatures ranging from -30°C to +70°C. This makes it an ideal choice for rugged environment applications.In conclusion, 1887102-3 power relay is suitable for controlling or powering different loads in a safe and reliable manner. Its small size, robust construction, built-in LED indicator, SRM protection, and current/voltage rating of up to 2 amps, 250VAC make it an ideal solution for HVAC, motor control, audio and video systems, and other related applications.

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