Data Sheet for Product

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Siemens Climatix Extension Modules ECV2 CB1N3944en
Smart Infrastructure 2021-02-16
Do not mix SELV /
PELV and line
voltage on the same
terminal.
Use external
protection for
inductive load.
Connecting control-lamps to relay output
Digital inputs
voltage free
D1...D3 (T4)
0/1 digital signal (binary)
For potential free contacts
Sampling voltage/current DC 24 V / 8 mA
Contact resistance Max. 200 Ω (closed)
Min. 50 kΩ (open)
Delay 10 ms
Pulse frequency Max. 30 Hz
Relay outputs
Q1...Q8 (T6, T7)
Connecting floating contact to digital input
Relay: type, contact Monostable, NO contact
Contact rating
Switching voltage AC 24 V…230 V (-20%, +10%)
Nominal current (res./ind.) Max. AC 3 A/2 A (cosφ 0.6)
Switching current at AC 19 V Min. AC 30 mA
Warning