Extended Rotary Handles
The door-mounted extended rotary handle is compatible with 3- and 4-pole unit-mount circuit breakers.
The door-mounted extended rotary handle kit is made up of:
a rotary mechanism that is mounted to the front accessory cover of the circuit breaker.
a handle assembly (handle mechanism and nut) that is mounted on the door. The handle mechanism is always secured in the same position, whether the circuit breaker is installed vertically or horizontally.
a cut-to-length extension shaft.
The handle assembly is fixed with a nut (Ø 22 mm) to make assembly easier. The Laser Tool (GVAPL01) can be used to accurately align the hole to be cut in the door with the circuit breaker.
Operation With Door Closed
The door mounted handle makes it possible to operate a circuit breaker installed in an enclosure from the front with the door closed. The door mounted operating handle maintains:
suitability for isolation
indication of the three positions OFF (O), ON (I) and tripped (Trip)
visibility of the trip unit when the door is open
degree of protection of the handle on the door: IP54 or IP65 as per IEC 529.
Mechanical Door Locking
A standard feature of the extended rotary handle is a locking function, built into the shaft, that prohibits door opening when the circuit breaker is in the ON or tripped positions.
Door locking can
be temporarily bypassed with a tool by qualified personnel to open
the door without opening the circuit breaker. This operation is not
possible if the handle is locked by a padlock.
Device and Door Padlocking
Padlocking locks the circuit breaker handle and disables door opening:
The handle may be locked in the OFF position using 1 to 3 padlocks diameter Ø 4–8 mm (3/16–5/16 in.). Padlocks are not supplied.
A voluntary customer modification of the black handle allows locking in the ON and OFF positions. Locking in the ON position does not prevent the circuit breaker from tripping if an overload or short circuit condition occurs. In this case, the handle remains in the ON position after the circuit breaker trips. Unlocking is required for the handle to go to the tripped position then the OFF position to reset the circuit breaker.
Operation With Door Opened
The indication of the three positions OFF (O), ON (I) and tripped (Trip) is visible on the extended rotary handle mechanism. The circuit breaker itself may be locked in the OFF position when the door is opened by one padlock / lockout hasp, diameter Ø 4–8 mm (3/16–5/16 in.). An optional open door shaft operator can be used to operate the circuit breaker when the door is opened. This UL508A accessory complies with NFPA79.
The shaft length is calculated using the distance between the back of the circuit breaker and the door:
minimum shaft length is 200 mm (7.87 in.)
maximum shaft length is 600 mm (23.62 in.)
shaft length must be adjusted to the particular installation.
Standard with black handle (IP54).
VDE type with red handle and yellow bezel for machine tool control (IP54).
Standard with an IP65 universal handle (red handle and yellow bezel). The IP65 version may not show trip indication.
IP54 models are suitable for mounting on the flat surface of enclosures rated Type 12. IP65 models are suitable for use in Type 12, 3R and/or 4X enclosure applications.
The door-mounted rotary operating handle is UL Listed under file E103955 and CSA Certified under file 177007.