5WG12621DB31 N262D31 KNX Binary Input 4 Ch Potential Free Alu
Silver The 5WG12621DB31 (N 262 D31) is a KNX binary input module providing
four potential-free (dry contact) input channels for integrating
conventional volt-free contacts into a KNX building automation
system. Each channel independently processes signals from push
buttons, window/door contacts, motion detector relays, or any
potential-free switch, converting them to KNX bus telegrams. DIN-rail mountable in standard distribution panels, the aluminum
silver-coloured (D31) housing is robust and suitable for electrical
cabinet installation. Programmable via ETS with flexible
per-channel function mapping for switching, dimming, shutter, or
value sending. Technical Specifications | Product name | N 262 D31 – Binary Input, 4-fold, potential-free |
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| Protocol | KNX/EIB Twisted Pair (TP) |
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| Bus supply voltage | 21–30 V DC (SELV, from KNX bus) |
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| Bus current | ≤ 10 mA |
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| Number of inputs | 4 binary channels (potential-free / dry contact) |
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| Input type | Volt-free contacts (NO / NC configurable via ETS) |
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| Input contact | Dry contact – no external voltage at input terminals |
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| Functions/channel | Switch, dim, shutter, scene recall, value sending |
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| KNX group objects | Status feedback, short/long press distinction |
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| Mounting | DIN rail (REG), 35 mm standard rail |
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| Module width | Approx. 4 modules (70 mm) |
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| Operating temp. | 0°C to +45°C |
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| Protection class | IP 20 |
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| Certifications | CE, KNX certified |
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| ETS compatibility | ETS 4.x and above |
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| Finish / color | Aluminum silver – D31 |
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Application Scenarios The N 262 D31 is suited for DIN-rail installation in electrical
distribution panels alongside other KNX actuators and power
supplies. Typical use cases include connecting conventional push
buttons, rocker switches, magnetic door contacts, window sensors,
or relay outputs from third-party systems directly to the KNX bus. - Each input can be independently configured in ETS for short-press,
long-press, or toggle operation
- Versatile for lighting control, shutter management, HVAC scene
selection, and alarm integration
- Widely used in commercial offices, hotel rooms, smart homes, and
industrial automation panels
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