MM2KB AC100/(110)

Power Relays, Over 2 Amps: MM2KB AC100/(110) Application Field and Working Principle

A power relay is an electronic component that is designed to open and close an electrical circuit. Some power relays act as a switch to control AC or DC current; others act as protection switches, automatic resetting of circuit breakers, or even as a signal transmission line. The MM2KB AC100/(110) power relay is designed to control and reset AC power for high-voltage applications.

The MM2KB AC100/(110) power relay is a two-stage, two-position transistor switch relay that is useful for controlling the operation of large electric motors or other large loads. This relay has a broad range of current handling capabilities, ranging from 2 to 110 amperes, which makes it suitable for almost any application. The relay can be operated manually, automatically through a time-dependent control system, or via a closed-loop feedback system.

Operating Principle

The MM2KB AC100/(110) power relay is designed to control AC power up to 110 amperes. The relay is a two-stage, two-position transistor switch relay, and thus the operation of the relay is determined by the cause-effect relationship between the switching stages. The first stage of the relay is the input stage, where the current flow from the power source is either interrupted or allowed through the relay depending on the state of the control input. The second stage is the output stage where the interruption or continuity of the supply current is determined by the state of the second relay switch.

The basic operation of the relay consists of three steps: a supply voltage is applied to the input, which causes the first stage of the relay to close. When this happens, the supply current can flow through the output stage of the relay to the load. The second stage controls the duration of the output current; when the voltage at the output of the second stage drops below a certain level, the output current is interrupted, and the supply current is no longer passing through the relay.

Applications

The MM2KB AC100/(110) power relay is mainly used to control the operation of large electric motors, such as those used in elevators, escalators, pumps, and other machinery. The variety of current handling capabilities makes this relay very versatile, and it can be used to control AC power systems up to 110 amperes. In addition, the circuit can be designed with a built-in time-dependent control to enable the relay to automatically switch the power supply on and off at predetermined intervals.

​The MM2KB AC100/(110) power relay is also suitable for use in other applications, such as: providing a signal transmission line in communication systems; providing a protection switch in hazardous environments; and enabling the automatic resetting of circuit breakers. The current handling capabilities of the relay make it a popular choice for a variety of tasks.

Conclusion

The MM2KB AC100/(110) power relay is a two-stage, two-position transistor switch relay designed to control the operation of large electric motors. It has a wide range of current handling capacity, ranging from 2 to 110 amperes, and can be manually, automatically, or via a closed-loop feedback system. This relay is popular for its versatility in controlling high-voltage applications, and is capable of providing signal transmission lines, protection switches, and automatic resetting of circuit breakers.