R11-3-20.0A-B121EV

Circuit breakers are essential components in any kind of electrical system. They’re designed to protect the circuit against over-current, short-circuit, and over-voltage incidents. The type of circuit breakers used for a particular application depends on factors such as power load, the environment, space restrictions and temperature. One of the most common types is the R11-3-20.0A-B121EV, which is a circuit breaker with specific features which make it suitable for a range of applications.

The R11-3-20.0A-B121EV trip-unit is a thermal-magnetic electronic type with a 300mA satellite. It is a double pole breakers, which have three wires, with a neutral and the protective ground. It is designed for AC and DC curcuits and is rated for a maximum voltage and current of 400 VAC/DC and 20 A respectively. It has a nominal operating voltage of 300 VAC/DC and a nominal operating frequency of 50 or 60 Hz. It is suitable for Y, delta and wye connection.

The R11-3-20.0A-B121EV has a wide operating temperature range of -40 to +85 degrees Celsius and an insulation distance of minimum 5mm. This makes it suitable for harsh environmental conditions, such as extreme temperatures. It also has a short circuit performance of 5000 A according to IEC standards and comes with a wide variety of accessories, including a fast-on connector and a mechanical-on/off switch.

In terms of application fields, the R11-3-20.0A-B121EV is by far the best breaker for both domestic and industrial applications. It can be used in lighting, heating, and cooling systems, power supply circuits, motor control, signal and instrumentation, HVAC and other low voltage applications. It is especially suitable for use in circuit breaker switchboards, as it is able to isolate the fault circuits rapidly and provide over-current, short-circuit, and over-voltage protection.

The R11-3-20.0A-B121EV is also very reliable, as it has a pre-trip feature to alert users about potential problems before the trip happens. It also comes with a magnetic trip delay that helps protect smaller circuits from sudden overloads. Furthermore, its embedded microprocessor allows it to be connected to the circuit without any external wiring.

The working principle of the R11-3-20.0A-B121EV is quite simple. It consists of two main components – a thermal element and a magnetic element. The thermal element works by responding to the current flowing through the breaker, as it has a maximum current rating which should not be exceeded. The magnetic element follows similar principles, as it releases a magnetic field when the current exceeds the rated maximum limit.

Overall, the R11-3-20.0A-B121EV is the perfect choice for any circuit breaker application. Its wide range of features and functionality, combined with its reliable performance make it an ideal option for both residential and industrial settings. Its simple design makes it easy to install, and its protection against over-current and short-circuits make it a safe option for any electrical system.