Cable type
Requirements
Connection cables for
temperature inputs
☐ Number of insulated conductors for tolerance ±2°C: at least two
☐ Number of insulated conductors for tolerance ±0.5°C: at least four
☐ Shielding: yes
☐ Conductor cross-section with four-conductor connection technology:
at least 4 x 0.25 mm²
☐ Maximum cable length for four-conductor connection technology:
20 m
☐ Conductor cross-section for two-conductor connection technology:
at least 2 x 0.25 mm²
☐ Maximum cable length for two-conductor connection technology:
2.5 m
☐ External cable diameter: 4.5 mm to 7.0 mm
Connection cable for
analog input
☐ Number of conductors: at least 2
☐ Shielding: yes
☐ Conductor cross-section: 0.2 mm² to 1.5 mm²
☐ Maximum cable length: 30 m
Connection cable for
S0 interface
☐ Number of conductors: 2
☐ Shielding: yes
☐ Conductor cross-section: 0.2 mm² to 1.5 mm²
☐ Maximum cable length: 30 m
6.3
Preparing the Connection Cable
Prepare each connection cable for connection and the cable for shielding the analog input and the
temperature inputs in accordance with the following procedure for connection to the multipole
terminal blocks.
Procedure:
1. Strip 40 mm of cable sheath from the end of the connection cable to which the multipole
terminal block is to be attached. Make sure that no pieces of cable are dropped into the
inverter.
2. Trim the cable shield to a length of 15 mm and
fold it over the cable sheath.
6 Connection
SMA Solar Technology AG
Installation Manual
15
MDSEN-40-IA-en-10