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 |