Symmetra MW II 1200 kW 3 × 400/230 V Installation - 990-1979E-00130
Residual Current Sense
Mains - input UPS - output
PE
N
PE
PE
PE
Bypass - input Bypass - output
L1
L3
L2
L1
L3
L2
N
L1
L3
L2
L1
L3
L2
PE
Protective Earthing Conductor
Main Protective Earthing Terminal
External SSW-Bypass
Symmetra MW
( PDU )
Service Entrance
Main
inverter
u
uuM
Main Protective Earthing Terminal
PEN
PE
Q1
Q6
Q3
Q5
Earthing arrangements and protective conductors - Symmetra MW in "TN-C-S installation"
E
Suitable earth electrodewith reference to IEC 60364-5-55 § 551.4.2Residual current protectivedevice can be used.Residual Current Sense
Residual current protectivedevice can not be used.With reference to:IEC 60364-4-41 § 413.1.3.1+- +-
Battery 1
Battery 2
Q7 Q8
Battery 1 Battery 2
PE
PE
Battery
rack
Battery
breaker
box
Q4
Delta
Inverter
i
i
i
Common-mode filter
Switchgear
PEN