20

System

pro M compact ®

Residual-current-operated circuit breaker

F 200 series

Description

Residual-current protective devices have a balance or, as the case may be, differential current transformer as measuring device that is

connected with permanent magnet trip via the secondary winding. Residual-current protective devices cover a.c. fault current and

pulsating d.c. fault current and are insensitive to current rushes up to 250 A, selective and short-time delayed tripping types up to 3,000 A).

Pulse shape 8/20 according to DIN VDE 0432 Part 2.

STOTZ residual-current protective devices are surge-proof and thus insensitive to transient leakage current to earth, as may occur e.g.

when switching fluorescent lamps, X-ray apparatus, IT systems and also thyristor control. (The value of the surge strength is indicated in

the technical data information regarding the switching variants).

Protection through RCD of types AC, A and B according to IEC 755

Selective RCCB F 200S

Is installed centrally and operates on a time-selective basis with respect to more sensitive downstream residual-current devices.

The result is a high degree of service security, as in the case of a fault, only the circuit affected will be switched off.

Due to their surge strength of up to 5,000 A/3,000 A, nuisance tripping of STOTZ main RCCBs caused by remote strike is ruled out.

They are therefore the perfect choice for the connection of freezers and agricultural applications (e.g. fans in intensive livestock husbandry)

according to DIN VDE 0100 Part 705.

Short-time delayed RCCBs F 200 R

are RCCBs with high surge strength needed where apparatus causes high leakage currents when switched on or off (e.g. lighting circuits

with ballast, long lines).

Application

To obtain a better level of security in all wiring systems, as well as in supply areas with respect to which codes of practice

recommend or require the use of residual-current protective devices.

Tasks

Protection against electric shock

Measures for the protection against electric shock as provided for in DIN VDE 0100 Part 410. These measures are:

Protection from indirect touch – as fault protection through disconnection of circuit in the case of excessive touch voltage caused by

short circuit to exposed conductive part.

Protection from direct touch – as additional protection through disconnection when conductive parts are touched. Dangerous leakage

current is switched off within the shortest possible time if the rated residual current of the circuit-breakers is I∆

n

30 mA, in the case of

people protector FS 201 I∆

n

10 mA.

Protection against fire – protection against fire ignited by electricity if the nominal residual current of the circuit-breaker is I∆

n

300 mA.

form of residual current

sinusoidal a.c.

pulsating d.c.

smooth d.c.

correct functioning of RCD

a.c.- sensitive

type AC

pulsating

current-sensitive

type A

d.c.-sensitive

type B

F 200 AC

F 200

suddenly applied

slowly rising

suddenly applied with/without

superimosed smooth

d.c. of 6 mA

slowly rising