• The padlock is prepared by users. Diameter of the lock is no more than $5mm. when a circuit breaker body is at the disconnected or test part, the safety shutters automatically block access to the disconnecting contact cluster.
 
“Disconnected” position padlock
After the chassis and body are locked at “Disconnected” position by a padlock, the
racking-handle cannot be inserted into racking-handle entry, and then the position
of the body cannot be changed.
 
Door interlock
Circuit breaker state door interlock
A cabinet door is prohibited to be opened when the circuit breaker is closed.
The cabinet door is allowed to be opened when the circuit breaker is disconnected.
Circuit breaker position door interlock
The cabinet door is prohibited to be opened when the circuit breaker is at the connected
and test part. The cabinet door is allowed to be opened when the circuit breaker is at the
disconnected position.

Source-changeover systems
• Mechanical interlock
1 normal and 1 replacement
2 incoming and 1 busbar
• Source-changeover controller (with adaptor)
1 normal and 1 replacement: mechanical interlock+2A type controller
2 incoming and 1 busbar: mechanical interlock+3A type controller
N
• Motor-driven mechanism (MO) (Standard configuration)
When a circuit breaker is switched on, an motor operation mechanism stores energy automatically, so that when the circuit breaker is tripped, the device can switch on instantly. An energy-storage handle as spare when no auxiliary power supply is provided.

Characteristics
Power supply
Operation threshold
Frame size: power loss (VA or W)
Motor overcurrent
Charging time
VAC 50/60HZ
220/230/240, 380/400/415
VDC
110, 220
0.85-1.1Us
16: 75W; 20: 85W; 32: 110W; 40: 110W; 63: 150W ≤1min <7s
<2times/min
Operation frequency
• Voltage coils (CC &ST) (Standard configuration) • Closing coil (CC)
After the energy storage of the motor is completed, the closed electromagnet can be operated and controlled within a range of 10 meters to instantaneously release the energy storage spring force of the operating mechanism to close the circuit breaker.