a.Rated residual operating current
I n = 30 mA:additional protection in the case of direct contact
b.Tripping class AC class – Tripping is ensured for sinusoidal,alternating currents,whether they be quickly applied or slowly increase.
c.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.