ABB UniGear ZS1 Instruction Manual page 18

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Figure 17: Cable compartment door enabling device (C)
Figure 18: Cable compartment door enabling slot (C1) and earthing switch enabling pin (C2)
Figure 19: Cable compartment door locking device (D)
Figure 20: Cable compartment door locking pin (D)
C
C1
C2
Pin ON
D
D
Pin OFF