CENTRAL – BLOCKING LEAKAGE PROTECTION CBZU-42B
Central - blocking leakage protection type CBZU-42B controls the condition of isolation in electrical networks one and three phase with the voltage from 42V to 1140V. The device connects directly with the line voltage of 42V or via chokes forming system “plastic scratch” with a line voltage higher than 42V. Thanks to including two members switched measurement of individually adjustable resistance there can be implemented protection functions blocking and centralized by the same device. Before switching on the measured resistance is compared with the setting of the locking member, and if it is higher followed by switching contactor. Auxiliary contact is used to activate the member center.
Supply voltage: |
42VAC +40% -20% |
Power consumption: |
<3VA |
The voltage measuring circuit: |
24V |
Current max. measuring circuit: |
<3mA |
Setting range: |
1kΩ - 100kΩ |
Response time (set internally): |
<70ms; <100ms; <300ms |
The return value of: |
1,1 do 1,5 set value |
Working temperature: |
-10 to 70°C |
*We reserve the right to change parameters
