1. Rated residual operating current
I∆n = 30 mA: additional protection in the case of direct contact.
2. 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. 
 3. 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.

Specification 參考