SMA CLUSTER CONTROLLER Installation - Manual (Page 25)

5 Mounting
5.1 Requirements for Mounting
Requirements for the mounting location:
Product can cause radio interference in living areas
The product is a device of ITE class A (EN 55022) and can cause radio interference in living
areas.
• Take suitable measures for shielding radio waves when the Cluster Controller is used in the
vicinity of living areas.
☐ The mounting location must be indoors.
☐ The ambient conditions at the mounting location must be suitable for the operation of the
Cluster Controller (see Section 9, page 84).
☐ The mounting location must be protected against dust, moisture and corrosive substances.
Maximum permitted cable lengths:
☐ Observe the maximum cable length of 100 m (328 ft) between any two nodes in the
Speedwire network and in the local area network (LAN).
☐ When connecting a digital or analog signal source (e.g. remote terminal unit, ripple control
receiver), observe the maximum cable length of 30 m (98 ft) from the Cluster Controller to the
signal source.
☐ When connecting a temperature sensor using the four-conductor method, observe the
maximum cable length of 20 m (65 ft) from the Cluster Controller to the temperature sensor.
☐ When connecting a temperature sensor using the two-conductor connection technology,
observe the maximum cable length of 2.5 m (8 ft) from the Cluster Controller to the
temperature sensor.
Minimum clearances:
☐ The minimum clearances must be maintained to ensure adequate heat dissipation.
5 Mounting SMA Solar Technology AG / SMA America, LLC
Installation Manual 25 ClusterController-IA-en-14