Siemens OOHC740 - Specifications; Technical data for OOH740

Specifications
Techn
ical data for OOH740
8
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Building Technologies
A6V10305793_m_en_
--
Fire Safety
2016-02-15
8 Specifications
Unless otherwise mentioned, the following data applies:
Temperature = 25 °C
Air pressure = 1000 hPa (750 Torr)
8.1 Technical data for OOH740
You will find information on approvals, CE marking, and the relevant EU directives
for this device (these devices) in the following document(s); see 'Applicable
documents' chapter:
● Document A6V10284161
Addressed detector line (C-NET)
Detector line Operating voltage (modulated) DC 12…33 V
Operating current (quiescent) Typ. 170…250 µA
Maximum current connection factor 1
Quiescent current connection factor 1
Address connection factor 1
Separator connector factor 1
Protocol C-NET or collective (automatic detection)
Compatibility See 'List of compatibility'
Line separator Line voltage:
● Nominal DC 32 V (= V
nom
)
● Minimum DC 12 V (= V
min
)
● Maximum DC 33 V (= V
max
)
Voltage at which the line separator opens:
● Minimum DC 7.5 V (= V
SO min
)
● Maximum DC 10.5 V (= V
SO max
)
Permanent current when switches are closed Max. 1.5 A (= I
C max
)
Switching current (e.g., in the event of a short-
circuit)
Max. 2 A (= I
S max
)
Leakage current when switches are open Max. 1 mA (= I
L max
)
Serial impedance when switches are closed Max. 0.4 Ω (= Z
C max
)
When operated on the C-NET, the line separator is closed via an actuation signal from the control
panel. Required line voltage: DC 12...33 V (normal range)