KM BUS distributor
Part no. 7415 028
For the connection of 2 to 9 devices to the Vitotronic KM BUS.
217
130
84
Specification
Lead length
3.0 m, fully wired
Protection
IP 32 to EN 60529;
safeguard through appro-
priate design and installa-
tion
Permissible ambient temperature
– during operation
0 to +40 °C
– during storage and transport
-
20 to +65 °C
Immersion temperature sensor
Part no. 7179 488
To capture the low loss header temperature.
Specification
Lead length
3.75 m, fully wired
IP rating
IP 32 acc. to EN 60529
ensure through appropriate
design/installation
Sensor type
Viessmann NTC 10 kΩ at
25 °C
Permissible ambient temperature
– during operation
0 to +90 °C
– during storage and transport
−
20 to +70 °C
Extension AM1
Part no. 7429 152
Function extension inside the casing for wall mounting.
Using the extension enables up to two of the following functions to be achieved:
Function
Rated breaking capacity of the relay output
– Switching the DHW circulation pump (only with the Vitotronic 200, type HO1A)
– Switching the heating circuit pump for a directly connected heating circuit
– Switching the circulation pump for cylinder heating (not for boilers with integral DHW cyl-
inder)
every 2(1) A 250 V~
total max. 4 A~
58
180
140
Specification
Rated voltage
230 V~
Rated frequency
50 Hz
Rated current
4 A
Power consumption
4 W
Protection class
I
IP rating
IP 20 D to EN 60529
ensure through appropriate
design/installation
Permissible ambient temperature
– during operation
0 to +40 °C
Installation in living spaces or
boiler rooms
(standard ambient conditions)
– during storage and transport
-20 to +65 °C
Extension EA1
Part no. 7429 151
Function extension inside the casing for wall mounting.
Control unit
(cont.)
VITOLADENS 300-W
/
VITOLADENS 333-F
VIESMANN
67
5822 425 GB
6
