Sungrow SG110CX-P2, Руководство пользователя

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– Surge protective devices (SPD) for the AC combiner box and on the LV side of the
transformer are recommended to be connected in the "3+1" manner, as shown in the
figure below. The Min. continuous operating voltages of M1-M4 are 690VAC.
– The LV side winding of the transformer, AC cables, and secondary devices (including
protective relay, detection and measurement instruments, and related auxiliary devi-
ces) must withstand the voltage to ground of at least 906 V.
5.6.2 Requirements for OT/DT Terminal
OT/DT terminals (not included in the delivery scope) are required for fixing AC cables to the
terminal block. Purchase the OT/DT terminals according to the following requirements.
OT/DT Terminals of Phase Wire
• Specification: M12
figure 5-5 Specifications of the Crimped OT/DT Terminal
OT/DT Terminal of PE Wire
• Specification: M12
5.6.3 Connection Procedure (For a multi-core cable)
In this manual, description is given by using five-core cable as an example. The
wiring of the four-core cable is the same.
step 1 Disconnect the AC-side circuit breaker and prevent it from inadvertent reconnection.
5 Electrical Connection User Manual