AIR CIRCUIT BREAKERS - Electrical and Electronics Division

2
Note : �or ordering information, refer pages 2/45 - 2/55
2/5
ACCESSORIES
EXTERNAL
ROTARY OPERATING MECHANISM
The circuit breaker has a toggle handle operating mechanism, which also serves
as swtiching position indicator – ON, O��, TRIP. But when the circuit breaker is
installed in switchgear cubicles or distribution boards, it requires to be operated
outside of the switchgear cubicles or distribution boards. The mechanism is
designed for direct attachment to the MCCB and transforms the toggle handle
movement into a rotation. It facilitates operation of MCCB when the panel door is
closed.
IT’S �EATURES
✦ Easy operation
✦ Door interlock mechanism. It doesn’t allow the circuit breaker to be “ON”
when the door of switchgear cubicles or distribution boards is open thus
prevents the operator from an unsafe condition.
✦ Door interlock defeat facility. This enables only authorized personnel to open
the door with MCCB in ON condition for the purpose of inspection.
�OR ‘DX’ RANGE
REMOTE OPERATOR (MOTORISED)
�or remote ‘ON’ and ‘O��’ of circuit breakers. Local switching by hand also
possible.