Switch disconnectorsSwitch disconnectors
Fuse monitoring
Electrical values and connection
Type |
MFM |
EFM10 |
EFM15 |
EFM20 |
EFM25 |
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---|---|---|---|---|---|---|---|---|---|---|
3-pole |
1-pole |
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Version |
AC/DC |
AC |
AC |
DC |
AC |
DC |
AC/DC |
AC |
DC |
|
Rated operational voltage (Ue) of 3NP11 1) |
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|
V |
24 ... 690 |
230 ... 690 |
190 ... 690 |
-- |
110 ... 690 |
-- |
24 ... 240 |
230 ... 690 |
-- |
|
V |
24 ... 240 |
-- |
-- |
220 ... 440 |
-- |
120 ... 440 |
24 ... 250 |
-- |
220 ... 440 |
Conductor cross-section, max. |
mm2 |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
Tightening torque |
2.5 ... 1.2 |
0.5 ... 1.2 |
0.5 ... 1.2 |
0.5 ... 1.2 |
0.5 ... 1.2 |
0.5 ... 1.2 |
0.5 ... 1.2 |
0.5 ... 1.2 |
0.5 ... 1.2 |
1) Please note: The permissible voltage range for the main circuit of a fuse switch disconnector is restricted in versions with fuse monitoring. If the upper or lower threshold of the permissible operational voltage range for fuse monitoring is crossed, there is a risk of irreparable damage to the fuse monitoring device or fuse monitoring may malfunction.
Signaling contacts
Type |
MFM |
EFM10 |
EFM15 |
EFM20 |
EFM25 |
|||||
---|---|---|---|---|---|---|---|---|---|---|
3-pole |
1-pole |
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Version |
AC/DC |
AC |
AC |
DC |
AC |
DC |
AC/DC |
AC |
DC |
|
Type and number of signaling contacts |
1 NO + 1 NC |
1 CO |
1 NO |
1 NO |
1 NO |
1 NO |
1 NO |
2 CO 1) |
2 CO 1) |
|
Rated operational voltage Ue |
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|
V |
230 |
24 |
24 |
24 |
24 |
24 |
24 |
24 |
24 |
|
V |
230 |
24 |
24 |
24 |
24 |
24 |
24 |
24 |
24 |
Rated operational current Ie |
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|
A |
6 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
|
A |
6 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
|
A |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
|
A |
0.5 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
1) One changeover contact to signal fuse failure and one changeover contact to signal line faults (overvoltage/undervoltage and phase failure).