SMA CLUSTER CONTROLLER

6 Connection SMA Solar Technology AG
60 ClusterController-IA-en-10 Installation Manual
Connecting the Top-Hat Rail Power Supply Unit
Additional required material (not included in scope of delivery):
☐ 1 top-hat rail power supply unit (see Section10 "Accessories", page81)
☐ 1 AC connection cable
☐ 1 connection cable for the connection of the top-hat rail power supply unit to the
Cluster Controller (for cable requirements, see Section 6.3)
If you are not using the top-hot rail power supply unit supplied as an accessory for the
Cluster Controller, the top-hat rail power supply unit you are using must meet the requirements
detailed below.
Top-hat rail power supply unit requirements:
☐ Maximum output current including short circuit: 8 A
☐ Maximum apparent output power: 100 VA
☐ DC output voltage: 24 V
☐ Nominal current: minimum 1.8 A
Requirement:
☐ The connection cable must have been prepared for connection to the multipole plug (see
Section 6.5)
Figure27: Pin assignment at terminal X1
1. Mount the top-hat rail power supply unit on the top-hat rail (see the manufacturer manual).
2. Connect the connection cable to the top-hat rail power supply unit (see the manufacturer
manual). For this purpose, trim the unused insulated wires up to the cable shield and note the
wire colours.
Pin Signal Explanation
1 Not assigned Reserved for future applications
2 24 V Input voltage 24 V DC
3GND Ground