HUW1
Series Intelligent Universal Circuit Breaker
45
Mode I: One power supply & one load interlock
Circuit
diagram
Possible operation
mode
One lock and one key: A circuit breaker is equipped with a lock and a key,
and it is not allowed to be closed when locked.
Note 1: 0 indicates that the circuit breaker is open; 1 indicates that the circuit
breaker is closed.
Mode II: Two power supplies & one load interlock
Circuit
diagram
Possible operation
modes
Two locks and one key: Two circuit breakers are equipped with two identical
locks and one key, and only one circuit breaker is allowed to be closed.
Mode III: Two power supplies & two load interlocks
Circuit
diagram
Possible operation
modes
Three locks and two keys: Three circuit breakers are equipped with three
identical locks and two keys, and only two circuit breakers are allowed to be
closed.
Mode IV: Three power supplies & one load interlock
Circuit
diagram
Possible operation
modes
Three locks and one key: Three circuit breakers are equipped with three
identical locks and one key, and only one circuit breaker is allowed to be
closed.
Door Frame
■
Door frame
The door frame is installed on the door of the distribution cabinet where the
circuit breaker is installed, which plays a sealing and aesthetic role. The
protection level of the door frame can reach IP40 level.
Drawer Operating Padlock
■
Drawer operating padlock
When the main body of the drawer mode circuit breaker is in the "Disconnection"
position, the pull-out card board is locked with a padlock. The main body cannot
be moved to the "Test" or "Connection" position through cranking after locking.
(Users shall prepare padlocks by themselves.)