SMA SSM16-11 - Manual (Page 41)

SMA Solar Technology AG 6 Electrical Connection
Installation Guide SSM16-24-IA-IEN105120 41
6.6.2 Connecting the Shunt Release
Depending on the order, the Sunny String-Monitor includes a DC circuit breaker with a remote trigger.
In this case the DC circuit breaker is equipped with a shunt release and a feedback contact.
Requirements for the connection cable of the undervoltage release.
☐ Cable cross section: at least 2.5 mm
2
.
☐ Total cable length: 1 000 m maximum.
1. Remove the filler-plugs from the cable gland.
2. Guide the connection cable through the cable gland into the enclosure interior.
3. Strip the connection cable 14 mm.
4. Connect the connection cable to the terminal strip
as shown in the circuit diagram.
5. Tighten the cable gland.
6.6.3 Connecting the Feedback Contact
1. Remove the filler-plugs from the cable gland.
2. Guide the connection cable through the cable gland into the enclosure interior.
3. Strip the connection cable 11 mm.
/05*$&
Destruction of the shunt release due to faulty cable dimensioning.
If the cable cross section is too small, the shunt release can malfunction and be destroyed.
• If the shunt release is implemented as a shunt trip, the connection cable must be correctly
dimensioned (see section 6.6.1 ”Dimensioning the Connection Cable for the Shunt
Trip”, page 40).
• If the shunt release is implemented as an undervoltage release, observe the requirements for
the connection cable.
Line Fuse
• Furnish the connection cable of the remote trigger with a suitable line fuse.