VKL17

Function 

Control electric circuits. 

Protect people against indirect contacts and additional protection against direct contacts. 

Protect installations against fire hazard due to insulation faults. 

Residual current circuit breakers are used in housing, tertiary sector and industry. 

Selection 

Detectable wave form 

AC class 

Tripping is ensured for slowly increasing sinusoidal AC residual currents 

A class

Tripping is ensured for sinusoidal AC residual currents and for pulsed DC residual currents, whether applied suddenly or increasing slowly. 

ASi Type 

Full type A features + Si: Super immunised (High immunity to unwanted tripping) 

Tripping is ensured not only for sinusoidal AC residual currents but also for pulsed DC residual currents whether applied suddenly or increasing slowly. S, G/SI type with filters against spurious tripping caused by harmonics and transient surges. With the impact of 8/20us surge 3000A, this high immunity RCCB will still be in stable status. 

Note: Our ASi type includes G/KV function and Si function.

Approvals and certificates :NF, ISI ,SEMKO

Tripping sensitivity 

10mA - precision instrument leakage protection and bathroom use. 

30mA - additional protection against direct contact. 

100mA - co-ordinated with the earth system according to the formula 

I△n < 50/R, to provide protection against indirect contacts; 

300mA/500mA - protection against indirect contacts, as well as fire hazard. 

Tripping time 

Instantaneous 

It ensures instantaneous tripping(without time-delay). 

Short time delay Si, G, KV 

It ensures any tripping at least 10ms. 

Si: Super immunised (High immunity to unwanted tripping). 

Selective 

It ensures total discrimination with a nonselective RCD placed downstream.