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Siemens LME7 Series - Cable Lengths; Actuators; Cross-Sectional Areas

Siemens LME7 Series
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Building Technologies Basic Documentation LME7... CC1P7105enr
4 Technical data 17.04.2018
4.4 Cable lengths
Mains supply line Max. 100 m (100 pF/m)
Display, BCI For use under the burner hood or in a
control panel
Max. 1 m (100 pF/m), unshielded
Load controller X5-03 Max. 30 m (100 pF/m), unshielded
Safety Loop Max. 30 m (100 pF/m), unshielded
Safety valve Max. 30 m (100 pF/m), unshielded
Fuel valve Max. 30 m (100 pF/m), unshielded
Ignition transformer Max. 30 m (100 pF/m), unshielded
Remote reset (lay separate cable) Max. 30 m (100 pF/m), unshielded
Other lines Max. 30 m (100 pF/m), unshielded
Specification as per EN 60730-1
Type of shutdown or interruption of each circuit
Shutdown with microswitch 1 pole
Mode of operation Type 2 B
4.5 Actuators
CLOSE / ignition position / OPEN
terminal X2-09 pin 1, X2-09 pin 2, X2-
09 pin 3
1 mio. switching
cycles
1 mio. switching
cycles
Rated voltage AC 120 V 50/60 Hz AC 230 V 50/60 Hz
Rated current 0.1 A 0.1 A
Power factor Cosι 0.6 Cosι 0.6
Output K2/2 X2-09 pin 7 AC 120 V 50/60 Hz AC 230 V 50/60 Hz
Nominal current Max. 1 A Max. 1 A
Power factor Cosι >0.4 Cosι >0.4
Feedback via input X2-09 pin 8 on the LME depending on the current load of the
actuator switching contact used (e.g. cam V2)!
4.6 Cross-sectional areas
The cross-sectional areas of the mains power lines (L, N and PE) and, if required, the
safety loop (safety limit thermostat, water shortage, etc.) must be sized for rated
currents according to the selected external primary fuse.
The cross-sectional areas of the other cables must be sized in accordance with the
internal unit fuse (max. 6.3 AT).
Min. cross-sectional area 0.75 mm²
(single- or multicore to VDE 0100)
Cable insulation must be suited for the respective temperature and environmental
conditions!

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