Siemens 8DJH - Connecting the Secondary Equipment

Installation
74/121 Revision 05 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • 500-8067.9
13.6 Connecting the secondary equipment
Wire routing Wires for secondary equipment can be laid to the side, to the rear or downwards.
For panel blocks, wire routing across panels is possible through the wiring duct on the
operating mechanism box (option) or through the front operating mechanism box. For
extendable switchgear, wire routing through the wiring ducts is recommended.
DANGER
Risk of injury by release of charged operating springs when the front cover of the operating
mechanism is removed! Bruises or cuts at the hands can be the consequence.
➭ To avoid impermissible switching operations, switch off auxiliary voltage, e.g.:
- Switch the auxiliary voltage supply of the motor.
-Trip the MCB.
- Disconnect the control cables from the low-voltage compartment.
➭ To discharge the spring energy store in the operating mechanism, perform the following
operations before removing the front cover:
- Actuate the OFF pushbutton.
- Actuate the ON pushbutton.
- Actuate the OFF pushbutton.
➭ The spring energy store indicator must show "spring not charged".
ATTENTION
Cables laid too close to the ready-for-service indicator can impair the function of the ready-for-
service indicator.
➭ When cables are laid, the transmission linkage of the ready-for-service indicator must
move freely.
Fig. 49: Wire routing with wiring duct on
the front operating mechanism
box
Fig. 50: Wire routing through the
operating mechanism box
Fig. 51: Wire routing in the
operating mechanism box
①
Wiring duct on the operating mechanism box (option)
⑤
Fixing duct
②
Lateral wiring ducts (recommended wire routing downwards)
⑥
Terminal strip
③
Wire routing through the operating mechanism box
⑦
Customer-side wiring
④
Ready-for-service indicator