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Showing posts from March, 2023

Solid State Relay

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  The solid-state relay (SSR) is an electronic switching device that switches on or off when an external voltage is applied across its terminals. Solid State Relays (SSRs) generally switch high voltage circuits on and off using the low voltage at their control terminals. A solid-state relay (SSR) does not include moving parts, making it less prone to wear and tear and more reliable than a mechanical relay. SSRs are typically used where control signals are produced by digital circuitry, such as microprocessors or programmable logic controllers (PLCs), and AC or DC loads are controlled. Besides industrial controls, lighting controls, HVAC, process controls, and other applications requiring high voltage or high current loads, they are also used to switch loads of high voltage and high current. Solid-state semiconductors utilize semiconductors’ electrical and optical properties instead of moving components to control input-to-output actions. It is an electronic switching device made of sem

MCB

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  What is Miniature Circuit Breaker (MCB)? Miniature Circuit Board (MCB) is a safety device with significant commercial and residential applications. It is an electro-mechanically driven automatic circuit protection device. It’s an automatic safety mechanism that prevents damage to electrical circuits due to excess current flow. It uses for low-voltage electrical networks like lighting and small electrical appliances. It operates automatically, meaning if a short circuit or overcurrent occurs, the MCB will automatically trip, disrupting the power supply and preventing any damage. However, these are sensitive to minimal current variations and detect minute levels that exceed safety limits. MCB uses to interrupt a circuit during overload & short circuits. It can be used as a substitute for fuses for domestic applications. The benefit of MCB over-fuses is that they are reusable even after interruption of the circuit after an overload or short circuit. An MCB or miniature circuit break