Connection To The Multifunction Relay - SMA 5000TL Operating Manual

SMA Solar Technology AG
6.4.4

Connection to the Multifunction Relay

Figure 11: Connecting terminal plate for the connection to the multifunction relay
Requirement:
☐ The technical requirements of the multifunction relay must be met (see Section 11 "Technical
Data", page 59).
Cable requirements:
☐ The cable must be double-insulated.
☐ External diameter: 5 mm to 12 mm
☐ Conductor cross-section: 0.08 mm² ... 2.5 mm²
☐ The cable type and cable-laying method must be appropriate for the application and
location.
Destruction of the multifunction relay as a result of excessive contact load
• Observe the maximum switching voltage and maximum switching current (see Section 11
"Technical Data", page 59).
• When connecting the multifunction relay to the utility grid, fuse the multifunction relay with a
separate circuit breaker.
Operating the multifunction relay and 485 Data Module Type B or
SMA Power Control Module in parallel
If you want to operate the multifunction relay and the 485 Data Module Type B or the
SMA Power Control Module in parallel, a voltage of no more than 30 V DC or 25 V AC may
be connected to the multifunction relay.
Operating Manual
6 Electrical Connection
STP5-12TL-20-BE-en-15 37