Compact NSX circuit breakers can be supplied from either the top or the bottom, even when equipped with a Vigi add-on, without any reduction in performance. This capability facilitates connection when installing in a switchboard. All connection and insulation accessories can be used on circuit breakers supplied either from the top or bottom.
All R, HB1, and HB2 circuit breakers are restricted for use as a line-load connection. They can not have power fed into the bottom of the circuit breaker. They will be marked with Line and Load markings
All R, HB1, and HB2 circuit breakers are restricted for use as a line-load connection. They can not have power fed into the bottom of the circuit breaker. They will be marked with Line and Load markings