Siemens 8DA10 Series User Manual

861-9601.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DA10 • Revision 11 157/214
Operation
36.5 Charging the closing spring manually
The closing spring is charged by the motor after applying control voltage. The energy required
for the operating sequence OPEN-CLOSED-OPEN (auto-reclosing) is stored in the closing
spring about 15 seconds after closing the circuit-breaker.
The hand crank is required to charge the closing spring manually if the control voltage fails.
➭ Remove cover from cutout.
➭ Insert hand crank.
➭ Turn hand crank clockwise approx. 48 turns until the indication "closing spring charged"
appears.
➭ Remove hand crank.
➭ Close cutout with cover.
Fig. 192: "Closing spring charged"
indication
Fig. 193: "Closing spring not charged"
indication
CAUTION
High speed moving parts
Using an incorrect hand crank can cause injury.
➭ Use exclusively the hand crank provided with the switchgear accessories.
The hand crank supplied features a freewheel function. The freewheel function
disconnects an inserted hand crank from the charging system when the motor charges the
closing spring.

Siemens 8DA10 Series Specifications

General

Brand	Siemens
Model	8DA10 Series
Category	Circuit breakers
Language	English