Charging The Spring Energy Store In Circuit-Breaker Type 2 Manually - Siemens 8DJH Installation And Operating Instructions Manual

Preconditions
Releasing the actuating
opening
Charging the spring
energy store
Final activities
500-8067.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • Revision 05
19.1

Charging the spring energy store in circuit-breaker type 2 manually

For a circuit-breaker without motor operating mechanism (option), or in case of failure of the
auxiliary voltage supply, the operating mechanism of the circuit-breaker must be charged
manually before switching operations can be executed.
ATTENTION
The circuit-breaker can be damaged by no-load switching. After charging the spring energy
store, do not open the circuit-breaker directly.
➭ After charging the spring energy store, close the circuit-breaker first, and then open it.
• Circuit-breaker in OPEN position
• "Spring charged" indicator shows "spring not
charged"
➭ Check service readiness (see page 85,
"Ready-for-service indicator").
➭ Remove the padlock (optional) from the
locking device of the circuit-breaker.
➭ Push the control gate of the circuit-breaker
upwards, and hold it.
➭ The actuating opening for "spring charging"
is open.
NOTE
The operating mechanism is equipped with an operating lever ejection system. The operating
lever ejection system prevents the operating lever from being left inserted accidentally.
➭ To insert the operating lever, a spring resistance must be overcome in the actuating
opening.
➭ Insert operating lever and turn clockwise as
far as it will go until the "spring charged"
indicator shows "spring charged".
✔ The "spring charged" indicator shows "spring
charged".
➭ Remove the operating lever.
✔ The control gate of the circuit-breaker
returns to its initial position.
✔ The spring energy store is charged. The
circuit-breaker can now be closed and
opened again.
Operation
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