Is mem breaker an rcd

A clever question!

A "mem breaker" is not a type of Residual Current Device (RCD), but rather a colloquialism or a meme that has gained popularity online.

A "mem breaker" is a humorous term used to describe a situation where someone shares a shocking or surprising fact, joke, or story that "breaks" or shatters the expectation or assumption that someone had. It's often used to describe a moment of surprise, revelation, or "aha!" that leaves someone speechless or stunned.

On the other hand, a Residual Current Device (RCD) is a type of electrical safety device that detects and interrupts residual currents (also known as earth leakage currents) in a circuit. RCDs are designed to protect people from electrical shock and are commonly used in residential and commercial settings to ensure electrical safety.

So, while a "mem breaker" might be a fun and unexpected surprise, it's not a type of RCD!