First Mate Last Break: Electrical safety and reliability for medical devices

First Mate Last Break
But what does “First Mate Last Break” (FMLB) mean and what is behind it? “First Mate Last Break” refers to an innovative mechanism in which a longer contact in the plug is paired first (First Mate) and interrupted last (Last Break). This special configuration ensures that the electrical system is permanently earthed. Without permanent grounding, unpredictable floating signals can degrade signal integrity and lead to crosstalk, capacitive coupling and EMI problems. Risky electrical safety conditions can also result. First Mate Last Break technology avoids this, ensuring reliable protection against electrostatic discharge (ESD). It also ensures that any stray voltage is conducted to a safe earth. This prevents damage to the operator and the voltage-sensitive devices.