RCBOs are commonly used in applications where there is the need to combine protection against overcurrents (overload and short-circuit) and protection against earth leakage currents.
RCBOs help in sensing this kind of faults and trip the circuit ensuring complete protection of the people and connected equipment.
Main benefits
Main Features
General
Rated residual operating current
I∆n ≤30 mA: additional protection in the case of direct
contact.
I∆n ≤300 mA: preventative fire protection in the case of
ground fault currents.
Tripping class
AC class
Tripping is ensured for sinusoidal,
alternating currents, whether they be quickly applied or slowly increase.
A class
Tripping is ensured for sinusoidal, alternating residual currents as well as for pulsed DC residual currents, whether they be quickly applied or slowly increase.
Tripping curve
B curve (3-5 In) protection and control of the circuits against overloads and short-circuits; protection for people and big length cables in TN and IT systems.
C curve (5-10 In) protection and control of the circuits against overloads and short-circuits; protection for resistive and inductive loads with low inrush current.