4-pole, 63A, 300mA: The residual current circuit breaker is ideal for use in demanding electrical installations and provides reliable protection with a rated residual current of 300mA. All-current sensitive (Type B): Protect your electrical systems with this all-current sensitive RCD, which reliably trips in the event of both AC and DC fault currents. Surge current resistance >5,000A: This circuit breaker withstands high surge currents of over 5,000A, ensuring particularly high safety in your installations. Max. upstream protection 100A: Flexible use with a maximum upstream protection of up to 100A, suitable for many applications and guarantees reliable protection. Compact design (4TE): With a width of only 4TE, the RCD is space-saving and easy to integrate into existing systems without compromising safety.