Relay module, standard interface for fire alarm systems, with miniature relay securely soldered in, 1 N/O contact, input voltage: 24 V AC
| Utilization restriction | |
| EMC note | EMC: class A product, see manufacturer's declaration in the download area |
| Product type | Relay Module |
| Insulation characteristics: Air clearances and creepage distances, input/output | |
| Insulation | Basic insulation |
| Overvoltage category | III |
| Pollution degree | 2 |
| Data management status | |
| Date of last data management | 12.09.2025 |
| Air clearances and creepage distances, input/output | |
| Rated insulation voltage | 250 V |
| Rated surge voltage | 4 kV (1.2/50 μs) |
| Coil side | |
| Nominal input voltage UN | 24 V AC |
| Input voltage range in reference to UN | 0.8 ... 1.1 |
| Typical input current at UN | 10 mA |
| Protective circuit | Bridge rectifier; Bridge rectifier, varistor |
| Capacitor; Capacitor | |
| Operating voltage display | LED |
| Switching | |
| Contact switching type | 1 N/O contact |
| Contact material | AgSnO2, gold-plated |
| Note | A 660 Ω resistor is connected in series and a 3.3 kΩ resistor is connected in parallel with the output |
| Maximum switching voltage | 30 V AC |
| Limiting continuous current | max. 3 A |
| Input | |
| Connection method | Screw connection |
| Conductor cross-section rigid | 0.14 mm² ... 2.5 mm² |
| Conductor cross-section flexible | 0.14 mm² ... 2.5 mm² |
| Conductor cross-section AWG | 26 ... 14 |
| Output | |
| Connection method | Screw connection |
| Conductor cross-section rigid | 0.14 mm² ... 2.5 mm² |
| Conductor cross-section flexible | 0.14 mm² ... 2.5 mm² |
| Conductor cross-section AWG | 26 ... 14 |
| Width | 17.8 mm |
| Height | 90 mm |
| Depth | 61 mm |
| Color | gray (RAL 7042) |
| Ambient conditions | |
| Degree of protection | IP20 |
| Degree of protection (Installation location) | ≥ IP54 (Installation location) |
| Ambient temperature (operation) | -20 °C ... 50 °C |
| Air clearances and creepage distances, input/output | |
| Standards/regulations | EN 50178 |
| Mounting type | DIN rail mounting |
| Assembly note | in rows with zero spacing |
| Mounting position | any |
| Item number | 2901881 |
| Packing unit | 10 pc |
| Minimum order quantity | 30 pc |
| Product key | DK617Y |
| GTIN | 4046356638593 |
| Weight per piece (including packing) | 200 g |
| Weight per piece (excluding packing) | 200 g |
| Country of origin | DE |
| China RoHS | |
| Environment friendly use period (EFUP) |
EFUP-50
An article-related China RoHS declaration table can be found in the download area for the respective article under "Manufacturer declaration". For all articles with EFUP-E, no China RoHS declaration table issued and required.
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| EU REACH SVHC | |
| REACH candidate substance (CAS No.) | No substance above 0.1 wt% |