1.1 Function
Personnel and fire protection: Cable and line protection against overload and short-circuits.
1.2 Selection
Rated residual operating current
I∆n ＝30 mA: additional protection in the case of direct
contact.
Tripping class
A and AC class
A class tripping is ensured for sinusoidal, alternating residual
currents as well as for pulsed DC residual currents, whether they be quickly or slowly increase.
AC class tripping is ensured for sinusoidal, alternating residual currents, whether they be quickly or slowly increase.
Tripping curve
B curve (3 In-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 In-10 In) protection and control of the circuits
against overloads and short-circuits; protection for
resistive and inductive loads with low inrush current.
1.3 Approvals and certificates
CE/CB/KEMA
1.4 Add-on devices
XF9 auxiliary contacts
S9 shunt release
V9 under voltage release
OVT-1 over voltage release