Cable Lengths; Cross-Sectional Areas; Connections Of Actuators - Siemens LMV36.520A1 Basic Documentation

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4.1.4 Cable lengths


Mains line AC 120 V

Display, BCI

Load controller (LR) X5-03

Load controller analog X64 (24 mA)

Safety loop / burner flange (total)

External lockout reset button

Safety valve (SV)

Power output ¹)

VSD control ¹)²)

Speed input

Fuel valve (V1/V2/V3)

Pilot valve (PV)

Ignition transformer (Z)

Other lines
¹) Do not run the cable together with other cables. If not observed, hum voltage might
cause electromagnetic interference
²) Shorter cable length due to closed control loop
Specification as per EN 60730-1
Type of shutdown or interruption of each circuit
Shutdown with microswitch
Mode of operation

4.1.5 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
Cable insulation must meet the relevant temperature requirements and environmental
conditions.
Fuses used inside LMV36... basic unit
- F1

4.1.6 Connections of actuators

The ready connected actuator cables must not be extended.
Basic documentation LMV36...
4 Technical data
Max. 100 m (100 pF/m)
For installation under the burner hood or
in the control panel
Max. 3 m (100 pF/m)
Max. 20 m (100 pF/m)
Max. 20 m (100 pF/m)
Max. 20 m (100 pF/m)
Max. 20 m (100 pF/m)
Max. 20 m (100 pF/m)
Max. 10 m (100 pF/m)
Max. 3 m (100 pF/m)
Max. 3 m (100 pF/m)
Max. 3 m (100 pF/m)
Max. 3 m (100 pF/m)
Max. 3 m (100 pF/m)
Max. 3 m (100 pF/m)
1-pole
Type 2 B
0.75 mm²
(single- or multi-core as per VDE 0100)
6.3 AT DIN EN 60127 2 / 5
CC1P7544en
25.09.2013