Page 152 - 1173-schn-lvd-aug-09

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Control switchgear
Rotary selector switches CMB, CMC,
CMD and CME
Local control
selector switches
Technical
Section 9
Dimensions
Section 10
CMB
This 2-pole selector switch with reset manually controls a circuit with two
operating directions with an OFF position.
For example: Electrically controlled shutters
Position 1 = up
Position 0 = OFF
Position 2 = down
.
1
7
3
2
6
5
1 0 2
2 changeover switches
CMC
This 2-position changeover switch (ON-OFF) with key-lock, allows locking in
either position.
1 3
2 4
1 2
1NC + 1NO
CME
This 2-position changeover switch is used specially to control electronic circuits
with a low voltage and current level.
1 3
2 4
1 2
1NC + 1NO
CMD
This 4-direction selector switch controls a circuit with operating priorities.
For example: fan control
Position 0 = OFF
Position 1 = “ON” override, low speed
Position 2 = “ON” override, high speed
Position 3 = remote control
Position 4 = automatic operation.
1
7
5
2
3
10 23 4
1 changeover switch