AMETEK CTs    NetWave 
Interlock 
Two versions of the Interlock exist, depending on the model. 
 
Note for .5 models: 
 the interlock CONTROL must be closed to enable the output. Use either 
the delivered INTERLOCK Terminator or other external switch. 
 
See chapter 10.2 for further explanations. 
 
 
Switch Floating / Grounded 
Switch to open/close the Neutral – Ground( PE) connection 
 
Default setting: PE 
 
Floating:  Is used when 
- the power system reference is floating and the ground  
 (PE) is not connected to neutral inside the NetWave 
- PE is connected to any line 
- the test requirement defines another PE reference 
 
Max voltage between: Line to PE and Neutral to PE 
 
For all models except xx.5: 
  V ac (rms)  Vdc 
Line to PE:  430 V  600 V  
Neutral to PE:  360 V  500 V 
 
Note: in High Voltage DC Mode (Opt-3 DC-EVR) the voltage is limited to 
600VDC when the switch is set to “floating”. This prevents the damage of 
the internal voltage limiters to be overloaded in case of a wrong 
connection. 
Note: see chapter 9.10 for special conditions when the optional 
insulation monitoring device (Opt-3 IMD) is installed. 
 
For xx.5 models: 
  V ac (rms)  Vdc 
Line to PE:  700 V  1000 V  
Neutral to PE:  360 V  500 V 
 
 
Test supply output terminals 
Power Output connector  
CEE Type 32 A  
5 pole 3 x 690 V 
 
4.3.8. Opt-3 Parallel Mode - NetWave 20.x and 30.x (Option) 
The parallel mode will connect all three internal sources together in parallel. The common 1-phase output is on 
a terminal block (2) where the user must connect the EUT. The other EUT terminals for 3-phase operating are 
disconnected from the source.  
 
-  All 3 sources are connected in parallel