SMA CLUSTER CONTROLLER Installation - Manual (Page 32)

Connection Cable requirements
Temperature Inputs
(connection cable) ☐ Number of insulated conductors for tolerance ± 2°C (±3.6°F):
at least two
☐ Number of insulated conductors for tolerance ± 0.5°C
(±0.9°F): at least four
☐ Conductor cross-section: at least 4 x 0.25 mm 2 (at
least 4 x 24 AWG)
☐ External cable diameter: 4.5 mm to 7.0 mm (0.18 in to
0.28 in)
☐ Maximum cable length for four-conductor connection
technology: 20 m (65 ft)
☐ Maximum cable length for two-conductor connection
technology: 2.5 m (8 ft)
Inverter
(Speedwire) ☐ Number of insulated conductor pairs and conductor cross-
section: at least 2 x 2 x 0.22 mm 2 (at least 2 x 2 x 24 AWG)
☐ External diameter: the maximum external diameter depends on
the size of the cable gland or the conduit (see the installation
manual of the Speedwire/Webconnect interface).
☐ Cable type: 100BaseTx, from Cat5 with shielding S-UTP, F-UTP
or higher
☐ Plug type: RJ45 of Cat5, Cat5e, Cat6, Cat6a
Cat7 plugs cannot be used.
☐ Cable length between two nodes: max. 50 m (164 ft) with
patch cable, max. 100 m (328 ft) with installation cable
LAN ☐ Number of insulated conductor pairs and conductor cross-
section: at least 2 x 2 x 0.22 mm 2 (at least 2 x 2 x 24 AWG)
☐ Cable type: 100BaseTx, from Cat5 with shielding S-UTP, F-UTP
or higher
☐ Plug type: RJ45 of Cat5, Cat5e, Cat6, Cat6a
Cat7 plugs cannot be used.
☐ Cable length between two nodes: max. 50 m (164 ft) with
patch cable, max. 100 m (328 ft) with installation cable
6 Connection and Commissioning SMA Solar Technology AG / SMA America, LLC
Installation Manual ClusterController-IA-en-14 32