1887112-2

Power Relays, Over 2 Amps

1887112-2 application field and working principle

Power Relays are designed for controlling the switching of higher power electrical signals, such as from the mains, and managing devices such as motor starters, solenoids and timer circuits. The 1887112-2 relay is designed to provide reliable switching of loads up to 2 amps,  and is suitable for applications with AC or DC voltages up to 5A.

The 1887112-2 relay is a two-piece unit with a contact rated at 6A at 250V AC, and rated at 10A at 250V DC, making it ideal for switching mains-type signals with power ratings up to 500W. It is designed with two contacts, which switch according to the voltage signal applied to them. The two contacts can be closed with a control voltage of 3-32VDC or 4-32VAC, to enable the relay to switch on a load.

The 1887112-2 relay is designed to facilitate an over-temperature protection system. Built into the relay is a bi-metallic strip, which detects an excessive temperature that indicates a current overload. When this happens, the bi-metallic strip deflects to open the contacts and disconnect the current. As a result, the circuit is protected against any consequent harm from overheating.

The 1887112-2 is also designed to provide protection against any unexpected voltage transient, and this is done by a series of varistors connected across the contacts of the relay. A varistor absorbs any voltage spike that may occur on the line, and this protects against any fire or other hazardous incidents that may result from such voltage transients.

The 1887112-2 relay also has a mechanical life of up to 100,000 cycles, making it suitable for applications with a high workload. This can be further extended by using models with a self-latching mechanism, which allows a single control signal to turn the relay either on or off, without the need to re-activate it. The self-latching mechanism also helps to reduce power consumption.

The 1887112-2 is a versatile device with numerous applications. It is ideal for switching mains and other high power signals, such as motors, solenoids and timers. Its over-temperature protection system ensures a safe operation, and its varistors reduce the risk of fire due to any unexpected voltage transients. The self-latching mechanism increases the mechanical life and reduces power consumption, making the 1887112-2 a reliable and economical choice for applications up to 2 amps.