Electrical Connection SMA America, LLC
40 SB50US-80US-IA-en-36 Installation Manual
6.4 Opening the DC Disconnect
1. Switch the DC disconnect to "0".
2. Loosen the screw on the rotary switch of the DC disconnect. Use a cross-head screwdriver
(screw used: UNC no. 5x
3
/
4
in., cross-head, flat-head, metal).
3. Remove the screw and the washer of the cover on the underside of the DC disconnect.
4. Remove the rotary switch.
5. Remove the cover of the DC disconnect:
– Pull the cover on the underside forward.
– In the process, simultaneously remove it from the
enclosure.
☑ The DC disconnect is open.
Do not fully remove the screws.
• If the rotary switch of the DC disconnect cannot be removed, loosen the screw further.
DANGER
High voltages at the DC terminals with connected PV modules
Risk of death or serious injury when touching the DC terminal.
• Do not touch any live component of the DC terminals.
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