BCU 370 · Edition 01.19 73
Technical data
9 Technical data
Mains voltage:
BCU..W: 230 V AC, 15/+10%, 50/60 Hz, or
BCU..Q: 120 V AC, 15/+10%, 50/60 Hz,
for grounded or ungrounded mains.
Flame control with UV sensor or flame rod.
Flame signal for:
Ionization control: 1 – 28 μA,
UV control: 1 – 35 μA.
For intermittent or continuous operation.
Air pressure check during pre-purge and operation by
external air pressure switch DL.
Maximum length of ignition cable with integrated elec-
tronic ignition: 1 m (3.2 ft).
Electronic ignitions:
BCU 370W..I1:
Ignition voltage: 22 kVpp,
ignition current: 40 mA,
spark gap: 3 mm,
secondary connection diameter: 1 × 4 mm
to grounding connection.
BCU 370W..I2:
Ignition voltage: 22 kVpp,
ignition current: 40 mA,
spark gap: 3 mm,
secondary connection diameter: 2 × 4 mm.
BCU 370Q..I1:
Ignition voltage: 12 kV amplitude,
ignition current: 40 mA,
spark gap: 3 mm,
secondary connection diameter: 1 × 4 mm
to grounding connection.
BCU 370Q..I3:
Ignition voltage: 2 × 6.5 kV amplitude,
ignition current: 40 mA,
spark gap: 3 mm,
secondary connection diameter: 2 × 4 mm
plug to grounding connection.
Maximum length of ionization/UV cable: 50 m (164 ft).
Max. number of operating cycles: 250,000.
Ambient temperature:
BCU 370: 20 to +60°C (4 to +140°F),
BCU 370..I: 10 to +60°C (14 to 140°F),
no condensation permitted.
Enclosure: IP 54 pursuant to IEC 529.
Permitted operating altitude: < 2000 m AMSL.
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