LORCH MicorMIG Series - Control and Peripheral Board Descriptions; NEFI Series Mains Filter Boards

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Pc-Board NEFI02
The pc-board NEFI02 is the mains lter board of the MicorMIG 300 and 350.
Since week 49 2015 the varistors at the mains input had been replaced by types with higher voltage (S20K620).
Functions
- mains lter
- mains detection
- safeguarding control transformer (2 x 4.0A, 500V, slow)
Picture pc-board NEFI02
X1
X2
LP2
LP1
LP3
LP7
LP5
LP6
LP14
PE
LP15 (PE)
Schematic
2
1
3
LP15 PE
6
5
7
4
8
11
12
L2
L1
L3
14
U
+Uz
-Uz
X1-3
X1-1
X2-3
X2-1
SI1
SI2
mains