23

System

pro M compact ®

Residual-current-operated circuit-breakers

F 200 series/FS 201

Test of protective measure

Except for the operating test, the effectiveness of the protection provided within the installation must be tested according to the applicable codes

of practice. For RCD protection, the maximum permissible earthing resistance values are as follows:

max.

max. earthing resistance

touch

at nominal residual current

voltage UL

10 mA

30 mA

100 mA 300 mA 500 mA

25 V

2500

833

250

83

50

50 V

5000

1666

500

166

100

Malfunctioning

The high-quality STOTZ residual-current-operated circuit-breakers are thorougly adjusted and tested in our works. Where damage occurs

(caused e.g. by transport, storage, etc.) no repair work must be undertaken.

If the device responds immediately after putting the RCCB into operation, check the downstream active circuit and any connected current-

consuming apparatus for earth fault current. Remove insulation faults or connections between the neutral conductor and the protective

conductor existing in load circuit. Where the RCCB does not trip in the first operating test after pressing the test button, check first wheth-

er the test circuit is connected correctly.

Where none of the above causes apply, or should the operating test be completed unsuccessfully, the RCCB must be replaced.

Opening the device will lead to a loss of warranty.

TN-S system (protective multiple earthing)

separate neutral and protective conductors

throughout the network

TN-C-S system

neutral and protective conductor (PEN)

combined in one part of the network.

TT system

IT system

The residual-current-operated circuit-breaker trips if a double

fault occurs, as e.g. is indicated as fault 1 and fault 2 above

.

Examples for the protection against electric shock

I„insulation“

C„combined“ PE and N (PEN)

S„separated“ PE and N

„…“

terms used in international IEC standard

only indicated by

line isolation

monitor

Explanation of type codes

L1, L2, L3

„line“ phase conductor

PE

„protection earth“

N„neutral“

PEN

PE and N combined

T„terre“ direct bond to earth