page 12
Pc-Board NEFI02
The pc-board NEFI02 is the mains filter 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Since week 49 2015 the varistors at the mains input had been replaced by types with higher voltage (S20K620).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 filter
- 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
Summary of Contents for MicorMIG 300
Page 1: ...Service Manual MicorMIG 909 2130 1 10 ...
Page 35: ...page 35 ...