Honeywell krom schroder BCU 440 - Technical Data

BCU 440 · Edition 01.17 29
Technical data
9 Technical data
Mains voltage:
230 V AC. 15/+10%. 50/60 Hz.
115 V AC. 15/+10%. 50/60 Hz.
for grounded and ungrounded mains.
Voltage to inputs and valve = mains voltage.
Signal and control line: max. 2.5 mm
2
(AWG 14).
Cable for burner ground/PE wire: 4 mm
2
(AWG 12).
Cable gland: 5 cable glands with multiple seal inserts
for cable diameters of up to 7 mm,
Each BCU is supplied for two cable glands with one seal
insert each for cable diameters between 7 and 12 mm.
Input voltage of signal inputs:
Rated value 115 V AC 230 V AC
Signal „1“ 80–126,5 160–253
Signal „0“ 0–20 0–40
Frequenz 50/60 Hz 50/60 Hz
Inherent current:
Signal „1“ typ. 2 mA
Power consumption: approx. 9 VA plus inherent con-
sumption of the integrated ignition transformer
(50/60 Hz).
Inherent consumption of ignition transformer:
Ignition
transformer
Input Output
V AC Hz* A* V mA*
TZI 515/100W 230 50 (60) 0,45 (0,35) 5000 15 (11)
TZI 725/20W 230 50 (60) 1,1 (0,8) 7000 25 (18)
TZI 7,512/100W 230 50 (60) 0,6 (0,45) 7500 12 (9)
TZI 7,520/33W 230 50 (60) 0,9 (0,7) 7500 20 (15)
TZI 515/100R 115 50 (60) 0,9 (0,7) 5000 15 (11)
TZI 725/20R 115 50 (60) 2,2 (1,6) 7000 25 (18)
T ZI 7,512/100R 115 50 (60) 1,2 (0,9) 7500 12 (9)
TZI 7,520/33R 115 50 (60) 1,8 (1,35) 7500 20 (15)
* Values in ( ) apply to 60 Hz.
Output current:
max. 1 A, cos ϕ = 1, for the valve outputs (or SRC out-
puts), but total current for valves and ignition trans-
former: max. 2.5 A.
Fail-safe inputs and outputs:
All the inputs and outputs marked “
”, see page 9
(Connection diagram) may be used for safety tasks.
Operation and fault signalling contacts:
Signalling contact for mains voltage, max. 2 A, 253 V,
not internally fused.
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