User Manual 24 / 43 CPS Mini Central series
6.
Electric connection
6.1
AC Connection.
Danger to life due to hazards voltages!
High voltages which may cause electric shocks are present in the conductive
parts of the inverter. Prior to performing any work on the inverter,
disconnect the inverter from the AC and DC sides
Danger of damage to electronic components due to electrostatic discharge.
Take appropriate ESD precautions when replacing and installing the inverter.
Conditions for the AC Connection
You must comply with the connection requirements of your utility operator.
All usages must comply with the regulations.
Residual-current protective device
The On-grid Solar Power Generating System is equipped with an integrated universal residual-current
monitoring unit.
If the network operator stipulates a residual-current protective device, you must use a residual-current
protective device that triggers in the event of a residual-current of 100 mA or more.
Connection of a second protective conductor
In some installation countries, a second protective conductor is required to prevent a touch current in the
event of a malfunction in the original protective conductor.
For installation countries falling within the scope of validity of the IEC standard 62109, you must install the
protective conductor on the AC terminal with a conductor cross-section of at least 10 mm²Cu.
Or install a second protective conductor on the earth terminal with the same cross-section as the original
protective conductor on the AC terminal.
Load disconnection unit
You must install a
separate
three-phase miniature circuit-breaker or other load disconnection unit for each
On-grid Solar Power Generating System in order to ensure that the On-grid Solar Power Generating System
can be safely disconnected under load.
Measure the public grid voltage and frequency (Voltage: 400Vac; Frequency: 50Hz/60Hz; in 3-Phase);
Open the breaker between the On-grid Solar Power Generating System and utility;
Specification of AC breaker: CPSPV70000ETL-S: 16A/400V
CPSPV8000ETL-S : 20A/400V
CPSPV9000ETL-S: 20A/400V
CPSPV10000ETL-S: 25A/400V
CPSPV11000ETL-S: 25A/400V
CPSPV12000ETL-S: 30A/400V
CPSPV15000ETL-S: 35A/400V
