55
54
Accessories
External accessories
Rotary handle operating mechanism
The rotary handle uses ergonomic design and unique transmission structure to achieve the
breaking, making and re-trip of the moulded case circuit breaker. The rotary handle features flexible
and smooth operation, low operating force and easy installation. The product is equipped with a
padlock at making/breaking position to prevent accidental making and breaking of circuit breaker.
The position of the rotation handle precisely indicates the position of circuit breaker contact:
break, make or free release.
●
Classification of rotary handle:
* Direct rotary handle (RHD)
* Extended rotary handle (ERH)
●
Features of rotary handle:
* Prevent the cabinet door from being opened when the circuit breaker is under making status
* In case of emergency, user can use the emergency unlocking device on the handle to open
the cabinet door
* Extended manual handle is available for corresponding Ex9M circuit breaker, with matching
door panel perforating dimension
* Low operating force, high reliability
Direct rotary handle (RHD)
Padlock
*
ON LOCK
OFF LOCK
maxφ7
minφ6
2X
Protection class: IP40
(The following functions are guaranteed when direct rotation handle is installed)
●
Function
* Reliable insulation
* Applicable to isolation function
* Enables free release of circuit breaker
* 3-position indication: ON/OFF/TRIP
* No impact on user’s operation of release and “Trip” test button
●
Operation instructions
* On/Off operation
ON
OFF
Accessories
Extended rotary handle (ERH)
Long handle (LHD)
Operation instructions
On/Off operation
Padlock
*
*
*
*
*
*
*
ON LOCK
ON
OFF
OFF LOCK
Protection class (combined with cabinet): IP55
(When extended rotary handle is installed, user can operate the circuit breaker inside
the cabinet directly on the cabinet door, and the following functions are guaranteed)
Function
Reliable insulation
* Applicable to isolation function
* Enables free release of circuit breaker
* 3-position indication: ON/OFF/TRIP
* When the cabinet door is opened, there is no impact on user’s operation of release
and “Trip” test button, and the circuit breaker will not close.
Used with Ex9M6 manual operating handle, to increase operating torque and reduce
operating force for manual making and breaking.
2X