Page 19 of 27
17158 issue 18, August 2011
NV350 Handbook
Circuit Ref.
Description
Max. Temperature (°C)
L2, L3, L4
Filter/PFC assy: Choke winding
155
C3, C4
Filter/PFC assy: X capacitors
100
L1
Filter/PFC assy: Boost choke winding
130
C1
Filter/PFC assy: Electrolytic capacitor
60 (105)
T1
Filter/PFC assy: Flyback transformer winding
130
RLY1
Filter/PFC assy: Relay
100
TX1, TX2
Modules: Power transformer windings
130
L1, XL1
B, BH & DB module chokes
130
L1
C & CM module chokes
140
Global option T2
Global Options: Transformer winding
90 (130)
Various
All other choke & transformer windings
110
Various
All <=10mm diameter electrolytic capacitors
80 (105)
Various
All 12.5mm diameter electrolytic capacitors
85 (105)
TX1
DA Module: Flyback transformer windings
100 (130)
XTH101
Primary IMS measured adjacent to XTH101
100 (105)
See component layout drawings below for locations of components. Higher temperature limit (in brackets) may be
used but product life may be reduced.
Input Connections:
Input screw teminals – 6-32 screws with 8.25mm spacing between screw head centres. Screw head
diameter is 6.6mm
Input IEC 60320 – rated 10A/250Vac (15A/132Vac)
Output Connections:
Maximum Torque Settings for Output Screw Terminals: M3 – 0.75Nm
M4 – 1.5Nm
Modules connected in series or parallel
Module outputs can be connected in series. See section on Module Limitations.
Module outputs cannot be paralleled to other modules in the same power supply or paralleled to other modules in
another unit.
Paralleling of modules for redundant operation i.e. Output load does not exceed the load current of single module.
This can be achieved by isolating the outputs using orring diodes.
With this method remote sensing around these diodes is not allowed.