Bosch Thermotechnology MBC 2, Manual

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Technical specifications
MBC 2 – 6 720 810 583 (2014/02) 25
5 Technical specifications
NTC resistance table of supply temperature sensor
NTC resistance table of outdoor temperature sensor
Description Unit Specifications
Dimensions:
• casing (l x b x h)
• packaged in box (l x b x h)
mm
mm 206 x 162 x 52.5
280 x 220 x 65
Weight:
• casing
• packaged in box
g
g 700
850
Power supply MBC 2 230 VAC ±10%, 50/60 Hz.
Consumed output MBC 2
(excl. system pump) VA approx. 3
Consumed output MBC 2
(max. incl. system pump) VA 693
Internal fuse None, power supply trans-
former is short-circuit re-
sistant
Power supply system pump
(internal) 230 VAC, maximum 3 A,
not secured
Power supply system pump
(external) maximum 230 VAC, 3 A,
not secured
Protection class II, in accordance with
EN 60730
EMC suppression grade:
• emission
• Immunity
EN50081-1
EN50082-2
Ambient temperature:
• operation
• storage
°C
°C -10 to 60
-10 to 70
Relative humidity:
• operation
• storage
%
%
max. 90 (not condensed)
max. 90 (not condensed)
Cable diameter:
• system pump
• external fault contact
• outside temperature sensor
• supply temperature sensor
• ModuLine (
i
RT) thermostat
• boiler 1
• boiler 2
mm²
mm²
mm²
mm²
mm²
mm²
mm² max. 2.5
max. 2.5
max. 1.5
max. 1.5
min. 0.75 – max. 1.5
min. 0.75 – max. 1.5
min. 0.75 – max. 1.5
Cable length:
1)
• ModuLine (
i
RT)
thermostat
2)
• boiler 1
2)
• boiler 2
2)
1) Other cables are not restricted to a maximum length.
2) These cables may be laid next to a 230 VAC cable in a maximum
length of 2 metres.
m
m
m
30
30
30
Table 3 Technical specifications
T [°C] R [
Ω
] T [°C] R [
Ω
] T [°C] R [
Ω
]
-20 78910 0 29490 20 12260
-19 74910 1 28150 21 11770
-18 71130 2 26890 22 11290
-17 67570 3 25690 23 10840
-16 64200 4 24550 24 10410
-15 61020 5 23460 25 10000
-14 58010 6 22430 26 9605
-13 55170 7 21450 27 9227
-12 52480 8 20520 28 8867
-11 49940 9 19630 29 8523
-10 47540 10 18790 30 8194
-9 45270 11 17980 31 7880
-8 43110 12 17220 32 7579
-7 41070 13 16490 33 7291
-6 39140 14 15790 34 7016
-5 37310 15 15130 35 6752
-4 35570 16 14500 36 6500
-3 33930 17 13900 37 6258
-2 32370 18 13330 38 6026
-1 30890 19 12790 39 5805
40 5592
Table 4 NTC resistance table of supply temperature sensor
T [°C] R [
Ω
] T [°C] R [
Ω
]
-15 36475 45 2185
-10 27665 50 1801
-5 21165 55 1493
0 16325 60 1244
5 12695 65 1041
10 9950 70 876
15 7885 75 739
20 6245 80 627
25 5000 85 535
30 4028 90 457
35 3265 95 393
40 2663 100 339
Table 5 NTC resistance table of outdoor temperature sensor