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The Eelectron BI04F01KNX is a 4-channel DIN-rail binary input for KNX that brings conventional pushbuttons, switches, door and window contacts and motion detectors onto the bus from the distribution board. Inputs can be set for short runs (up to 30 m (98 ft)) or long runs (up to 100 m (328 ft)) with end-of-line resistor supervision, which lets the module watch magnetic contacts and detectors with a tamper-aware level of safety that plain inputs do not offer.
It does more than switching: all 4 inputs can be reconfigured as analog NTC probe inputs to publish temperatures or run a complete 2-stage PI thermostat, two inputs can host plug-in SM03E01ACC (CO₂ + temperature) or SM03E02ACC (VOC/eCO₂ + temperature) smart sensors, and 10 logic blocks plus a pulse counter are available for metering and interlock tasks. Typical uses are hotel rooms, offices and retrofits where existing low-voltage wiring already terminates in the panel.
| Power supply | Via KNX bus, 21–32 V DC (SELV) |
| Current consumption | ≤ 15 mA |
| Inputs (digital mode) | 4 dry-contact inputs; scanning voltage 20 V DC; long cable test current 6 mA, short cable 1 mA |
| Max cable length | Long distance 100 m (328 ft); short distance 30 m (98 ft) (twisted) |
| EOL supervision | 1.8 kΩ, 1/8 W end-of-line resistor |
| Inputs (analog mode) | NTC probes TS01A01ACC (-20 to +100 °C) or TS01B01ACC (-50 to +60 °C) on all 4 inputs; max cable 30 m (98 ft) twisted |
| Smart sensor inputs | 2, for SM03E01ACC / SM03E02ACC plug-in sensors |
| Logic blocks | 10 |
| Group addresses / associations | 250 / 250 |
| Mounting | DIN rail, 4 modules; LV distribution switchboard |
| Enclosure | PC-GF, IP20 (EN 60529) |
| Operating temperature | -5 °C to +45 °C (23 °F to 113 °F) |
| Storage temperature | -20 °C to +55 °C (-4 °F to 131 °F) |
| Relative humidity | max 90 % non-condensing, indoor use |
| Standards | EN 63044-3; EN 63044-5-1 / EN 63044-5-2; EN 50491-2; LVD 2014/35/EU; EMC 2014/30/EU |
| Certifications | KNX certified; CE |
| ETS application | BI0xF01KNX binary input application |
| Weight (net) | 0.14 kg (0.31 lb) |
| Manufacturer part no. / GTIN | BI04F01KNX / 8054144522272 |
Family: BI08F01KNX (8 inputs), BI16F01KNX (16 inputs, mains-assisted) and BI08H01KNX (8 x 100–250 V inputs). Accessories: NTC probes TS01A01ACC / TS01B01ACC; plug-in sensors SM03E01ACC / SM03E02ACC. Compact in-wall alternatives: IO22D02KNX, IO44D02KNX, IO62D02KNX.
CE certified; not UL/NRTL listed — verify local code requirements before specifying in US installations.
Datasheet (PDF) · Available to order.
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