SMA IFCON Inline-Fuse-Connector-Set16 - Manual (Page 17)

5 Requirements for the Mounting Location
☐ Ambient temperature: ‒40°C to +55°C
☐ The inline fuse connectors must not be in contact with surrounding objects with temperatures
exceeding +55°C.
6 Mounting the Inline Fuse Connectors
Danger to life due to electric arc
An electric arc may occur when plugging or removing the DC connectors or the inline fuse
connectors under load and in case of a reverse-poled connection of the DC connectors. Electric
arcs can result in death or serious injury.
• Ensure the correct polarity of the strings before connection.
• Plug or remove DC connectors and inline fuse connectors only under load-free conditions.
• Disconnect the DC sub-distribution (see the DC sub-distribution manual).
• Wear suitable personal protective equipment.
Requirements:
☐ The positive connection cables of the PV modules must be fitted with the positive DC
connectors (for information on assembling DC connectors, see the DC connector installation
manual).
☐ The negative connection cables of the PV modules must be fitted with the negative DC
connectors (for information on assembling DC connectors, see the DC connector installation
manual).
Procedure:
1. Disconnect the DC sub-distribution (see the DC sub-distribution manual).
2. Measure the voltage at an assembled DC connector of a connection cable of the PV modules
using an appropriate measuring device.
3. Select an inline fuse connector with appropriate nominal electrical current strength for this DC
connector.
4. Plug the suitable end of the inline fuse connector onto the assembled DC connector. The inline
fuse connector snaps into place.
5. Insert the other end of the inline fuse connector in the DC connector of the DC sub-distribution.
The inline fuse connector snaps into place.
6. Make sure that the DC connector is securely in place.
7. Secure the string cable on the cable support rail (see operating manual of the DC sub-
distribution). Observe the arrangement and fixation of the string cables to avoid overheating
of the inline fuse connectors.
8. Perform the steps for each DC connector of the connection cables of the PV modules.
5 Requirements for the Mounting Location SMA Solar Technology AG
Installation Manual 17 InlineFuse-IA-xx-10
ENGLISH