MCCBs (Moulded Case Circuit Breakers) are an electrically operated switch designed to protect an electrical circuit from damage caused by overcurrent, typically resulting from an overload or short circuit. How do they work? The basic function of an MCCB is to interrupt current flow after a fault, once the fault is corrected the circuit breaker can be reset (either manually or automatically) to resume normal operation. MCB or MCCB Although MCBs and MCCBs both are circuit breakers, there are key differences between the two that make them suitable for specific jobs. The main difference between the two is the capacity, MCBs are rated under 100 amps with an interrupting rating of under 18,000 amps. Consequently, the trip characteristics may not be adjusted since they cater to low circuits. On the other hand, an MCCB comes with an adjustable trip characteristic for the higher loads. An MCCB would typically provide amps as high as 2500 or as low as 10, depending on the application. The interrupting rating of MCCBs range from around 10,000 amps to 200,000 amps.
Description:
From Micrel, a high-sided switch suitable for general-purpose
power distribution. Typically used in USB peripherals and desktop or notebook PCs.
Description:
This family of load and power switches from
Analog Devices are highly integrated devices. They are designed to switch voltage rails controlled through an internal high-side switch. This range of load switches also features over-temperature and over-current protection options. Suitable ...
Description:
The TC7USB42MU is high-speed CMOS dual 1-2 multiplexer/demultiplexer.
The low ON-resistance and the low capacitance of the switch allow connections to USB2.0 (480Mbps) application. This device consists of dual individual two-inputs multiplexer/demultiplexer with common select input (S) and output enable ...
Description:
The MIC2025 and MIC2075 are high-side MOSFET switches
optimized for general-purpose power distribution requiring circuit protection. The MIC2025/75 are internally current limited and have thermal shutdown that protects the device and load. The MIC2075 offers "smart" thermal shutdown that reduces ...