WITZ series intelligent residual current operated circuit breaker
The WlTz series residual current operated circuit breaker is mainly used in distribution networks with a voltage level of 40ov It integrates electronic molded case circuit breakers and residual current protectors to protect circuit leakage, overcurrent,overvoltage,undervoltage,phase loss,zero loss, etc.
Information and materials

Overviewv

The WITZ series residual current operated circuit breaker ismainly used in distribution networks with a voltage    level of 400y.lt integrales eleclronic molded case cicuit breakers andresidual current protectors to protect circuit    laakage,overcurrent,overvoltage,undervoltage,phase loss, zero loss.etc.


FEATURESv

1.Adopting high-performance 32-bit ARMmicroprocessors forreal-time signal processing andintelligent control;

2.LCD Chinese display,user-friendly human-machineinteriace, easy to operate;

3.Resicual current (leakage) proteclion, residual curren!level can be set online, with reclosing function;

4.lt can monitor and track the residual current of the line inreal time, automatically adjust the gear, and ensure    theoperational rate and reliabilily of the producl;

5.It has the funetions of identifying, displaying, storing.and querying trip types:

6.It has communication function and can achieve remotesignaling,telemetry,remote control, and remoteadjustment

7.It has the funclion of measuring current, voltage, andresidual current;8.it can provide comprehensive protection    and intelligentmanagement for the line in question, support anti islandingprotection for distributed photovoltaics,    and achieveseamless integration with charging stations.

Main technical parametersv

Rated working voltage(Un)

V

AC400V

Shell frame current

A

125/250/400/630/800

Rated insulation voltage

V

1000

Rated impulse withstand voltage

KV

12

Rated residual operating current

mA

50mA/100mA/200mA/300mA/400mA/500mA/600mA/800mA/1000mA Adjustable/AC type

Operate the short-circuit breaking capacity

KA

35/50/65

Ultimate short-circuit breaking capacity

KA

50/65/100

Automatic coincidence of time

s

20-60


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400-157-0776