Data Sheet for Product

5
Siemens CB1Q3903en
Smart Infrastructure 2020-04-08
Power supply
Power supply AC/DC 24 V, G0 (T8)
Operating voltage AC 24 V ±20%; DC 24 V ±10%
Frequency 45…65 Hz
Current consumption AC, without extension modules Max. 1.8 A @ AC 24 V
Current consumption DC, without extension modules Max. 1.0 A @ DC 24 V (
Current consumption AC for extension modules * Max. 2.2 A @ AC 24 V
Current consumption DC for extension modules * Max. 3.0 A @ DC 24 V
External fuse in the supply line Max. 6.3 A slow wire fuse or circuit breaker
* For calculation, see Q3900
Mains
AC 230 V Other devices
Safety transformer
Inputs and outputs
Relay outputs Q1…Q8 (T9, T10, T11)
Relay: Type, contact Monostable (NO/NC contact)
Monostable (NO contact)
Contact rating
Switching voltage AC 24 V…230 V (-20 %, +10 %)
Rated current (res. / ind.) Max. AC 3 A / 2 A (cosφ 0.6)
Switching current at AC 19 V Min. AC 30 mA
External fuse in the supply line Max. 6.3 A slow wire fuse or circuit breaker
Connecting signal lamps to relay outputs