Products of Eltako
Eltako: Switching Relays & Building Automation for Industry and Commerce
Impulse contact relays, dimmers, blind control, EnOcean, KNX, RS485 – Eltako at Lieske Elektronik
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1949
Founded
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75+
Years Experience
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500+
Products
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Matter
Certified
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Eltako is a long-established German manufacturer whose history dates back to 1949. The name derives from "ELektrischer TAst-KOntakt" – named after the company's first impulse contact switch that laid the foundation for modern building automation. Today, Eltako delivers a complete ecosystem of sensors, switching actuators, dimmers and energy meters. The portfolio comprises more than 500 products based on proven technologies: the wired RS485 bus system, the battery-free and maintenance-free EnOcean wireless system, and modern standards such as KNX, Modbus and DALI. With the new Series 62-IP (WiFi, Matter) and Series 64, Eltako also covers contemporary smart building requirements. Electrical contractors, planners and system integrators rely on Eltako throughout Europe – due to proven longevity, simple DIN-rail installation and broad system openness. Lieske Elektronik stocks the full Eltako range. |
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◆ Product Families
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► Switching Relays & Impulse Switches
Electronic impulse switches, switching relays and coupling relays in proven Eltako quality. For DIN rail mounting, 230V AC, up to 16 A – classic installation and bus-controlled variants.
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► Dimmers & Blind Control
Universal dimmers for all lamp types, blind and roller shutter actuators for motors up to 230V AC. Wired via RS485 or wireless via EnOcean – easy retrofitting without new cabling.
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► Energy & Current Metering
Electricity meters, energy measuring devices and current monitoring relays for transparent energy consumption. Capture and evaluation via bus system – the basis for effective energy management in commercial buildings.
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► Series 62-IP & Series 64 (Smart)
Modern WiFi impulse switches with Matter certification and Apple Home compatibility. Series 64 with wireless universal dimmers and switching actuators (16 A) – for contemporary smart building projects.
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◆ Application Areas
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⚡ Industry & Manufacturing
Switching relays and energy meters for machinery, production plants and industrial buildings – robust, durable, DIN-rail compatible.
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⚡ Offices & Commercial Property
Lighting control, shading and climate management via RS485 or EnOcean – retrofitting without chasing walls, energy saving without major rebuilding.
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⚡ Residential & Renovation
Battery-free EnOcean wireless system enables smart home upgrades even in existing buildings – without intervention in the existing electrical installation.
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◆ Why Eltako?
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★ 75 Years of Pioneering Work
Since 1949 Eltako has set standards in switching and building automation technology. The first impulse contact switch and the introduction of the battery-free EnOcean system are evidence of this innovative strength.
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★ EnOcean: Maintenance-Free Wireless
Eltako was one of the first adopters of energy-autonomous EnOcean wireless technology. Transmitters without batteries, no maintenance, no cables – ideal for retrofitting and hard-to-reach locations.
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★ Matter & Future-Proofing
With Matter certification and Home Assistant compatibility, Eltako is ready for open smart building platforms – a secure investment for planning and new installations.
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★ Broad System Integration
RS485, EnOcean, KNX, Modbus, DALI and WiFi – Eltako products work with all common building automation systems without vendor lock-in.
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► Eltako – Products in the Shop
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◆ Frequently Asked Questions about Eltako
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What is the Eltako RS485 bus system?
The Eltako RS485 system connects actuators, pushbuttons and the central unit via a two-wire bus cable. Up to 30 bus participants can be operated in parallel. Configuration is carried out via the Eltako PCT14 software – simple, robust, proven in thousands of installations.
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How does EnOcean work with Eltako?
EnOcean transmitters harvest their energy from actuation (e.g. button press) or ambient energy (light, temperature). No batteries are required – the wireless pushbuttons are maintenance-free and can be mounted anywhere without electrical installation.
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Are Eltako products compatible with Home Assistant?
Yes – Eltako is an official "Works with Home Assistant" partner. Series 62-IP products support Matter and can be natively integrated into Home Assistant instances – locally, without cloud dependency.
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Categories with products from Eltako
- Electrics ➤ Cables ➤ Data lines ➤ Cat6 Patch Cable ( 1 )
- Electronics ➤ Energy ➤ Energy Management ➤ Maximum Guardian ( 2 )
- Electrics ➤ Industrial Material ➤ Automation ➤ Power supplies, transformers and power supplies ( 2 )
- Electrics ➤ Industrial Material ➤ Control devices / Pilot devices ➤ Built-Command and signaling devices ( 1 )
- Electrics ➤ Industrial Material ➤ Industrial relays and contactors ➤ Switching units / measuring, control relay ( 1 )
- Electrics ➤ Installation ➤ Fire barriers, fire protection compound ( 1 )
- Electrics ➤ Installation ➤ Home Automation ➤ POWER EIB ( 3 )
- Electrics ➤ Installation ➤ Install Outlets and Accessories ➤ For brick / hollow wall / concrete installation boxes ( 2 )
- Electrics ➤ Installation ➤ Modular devices / equipment installation ➤ Timer Switches ( 6 )
- Electrics ➤ Installation ➤ Switch Material ➤ Switch Flush standard ( 1 )
- Light & Sound ➤ Light Systems ➤ Downlights ➤ Downlights for NV ( 1 )
- Light & Sound ➤ Light Systems ➤ Electrical Equipment ➤ Electronic Ballast ( 1 )
- Electronics ➤ Measurement ➤ Counter / coin, hour meter ( 24 )
- Technology ➤ Security Technology ➤ Sensors ➤ Fire & Gas Detectors ( 1 )
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 Eltako DS12 20000010Eltako 20000010 DS12 spacing piece 1/2 TE = 9 mm wide 1/2 pitch unit = 9mm wide to create and maintain a ventilation distance for very warm series-mounted devices, e.g. dimmers from 300W/400W and permanently switched on electromechanical impulse switches. Lieske Part No.: 340654 Mfg Part No: 20000010 Type: DS12 |
2,12 EUR 2,21 EUR
 ≈ £1.77 | ≈ $2.37
Delivery time from supplier's stock (ca.) 3 workdaysinfo_outline
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Eltako KM12 20000030Eltako 20000030 KM12 contact module 1NO+1NC 4A/250V AC Contact module, 1 normally open and 1 normally closed 4A/250V AC. Can be subsequently snapped onto the left of all S12 and XS12 impulse switches as well as installation relays and installation ... Lieske Part No.: 349095 Mfg Part No: 20000030 Type: KM12 |
17,22 EUR 17,95 EUR
≈ £14.36 | ≈ $19.23
Made to order · Delivery time approx. 20 workdaysinfo_outline
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Eltako 20000050Eltako Euro container EBOX with hinge lid 20000050 Lieske Part No.: 1675590 Mfg Part No: 20000050 |
13,15 EUR
≈ £10.97 | ≈ $14.69
Made to order · Delivery time approx. 20 workdaysinfo_outline
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Eltako WNT15-12VDC/24W 20000072Eltako 20000072 WNT15-12VDC/24W wide-range switch-mode power supply Wide-range switching power supply. Nominal power 24W. Stand-by loss only 0.1 watts. Modular devices for mounting on DIN-EN 60715 TH35 mounting rail. 1 division unit = 18mm wide, 58mm deep. For a load ... Lieske Part No.: 2116170 Mfg Part No: 20000072 Type: WNT15-12VDC/24W |
40,28 EUR 41,98 EUR
≈ £33.59 | ≈ $44.99
Delivery time from supplier's stock (ca.) 3 workdaysinfo_outline
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Eltako WNT15-24VDC/24W/1A 20000073Eltako 20000073 WNT15-24VDC/24W/1A wide-range power supply Wide-range switching power supply. Nominal power 24W. Stand-by loss only 0.1 watts. Modular devices for mounting on DIN-EN 60715 TH35 mounting rail. 1 division unit = 18mm wide, 58mm deep. For a load ... Lieske Part No.: 2094421 Mfg Part No: 20000073 Type: WNT15-24VDC/24W/1A |
40,28 EUR 40,32 EUR
≈ £33.59 | ≈ $44.99
Delivery time from supplier's stock (ca.) 3 workdaysinfo_outline
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Eltako WNT15-24VDC/48W 20000075Eltako 20000075 WNT15-24VDC/48W wide-range switching power supply Wide-range switching power supply. Nominal power 48W. Stand-by loss only 0.2 watts. Modular devices for mounting on DIN-EN 60715 TH35 mounting rail. 2 division units = 36mm wide, 58mm deep. For a load ... Lieske Part No.: 2116171 Mfg Part No: 20000075 Type: WNT15-24VDC/48W |
53,70 EUR 55,96 EUR
≈ £44.79 | ≈ $59.98
Delivery time from supplier's stock (ca.) 3 workdaysinfo_outline
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Eltako 20000076 20000076Eltako 20000076 wind sensor with integrated heating Funktionsweise: - Erzeugt eine Impulsfolge, abhängig von der Drehzahl des Windrades, - Impulsauswertung über das Sensorrelais LRW12D, - Bei Frosterkennung aktiviert sich die integrierte Heizung ... Lieske Part No.: 893896 Mfg Part No: 20000076 |
83,91 EUR 87,45 EUR
≈ £69.98 | ≈ $93.73
Made to order · Delivery time approx. 20 workdaysinfo_outline
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Eltako LS Lichtsensor 20000080Eltako 20000080 LS light sensor Shading systems - and shutter control BRS . modular installation devices for mounting on DIN rails EN 50022 The processor-controlled universal sensor relay or USR12 light and twilight sensor relay ... Lieske Part No.: 685106 Mfg Part No: 20000080 Type: LS Lichtsensor |
34,44 EUR 35,89 EUR
≈ £28.72 | ≈ $38.47
Made to order · Delivery time approx. 20 workdaysinfo_outline
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Eltako WS Windsensor 20000082Eltako 20000082 WS wind sensor Der Windsensor WS erzeugt eine von der Drehzahl des Windrades abhängige Impulsfolge. Diese wird in einem nachgeschalteten Sensorrelais LRW12D ausgewertet. Stabiles Kunststoffgehäuse, Durchmesser x ... Lieske Part No.: 1591488 Mfg Part No: 20000082 Type: WS Windsensor |
95,58 EUR
≈ £79.71 | ≈ $106.76
Made to order · Delivery time approx. 20 workdaysinfo_outline
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Eltako WMS 20000085Eltako 20000085 WMS weather data multisensor The weather data multi-sensor WMS sends the currently recorded weather data brightness from three directions (0.99,000 lux), wind (0.35 m/s), rain and temperature (-40.+80°C) to the downstream ... Lieske Part No.: 684273 Mfg Part No: 20000085 Type: WMS |
427,97 EUR 446,00 EUR
≈ £356.93 | ≈ $478.04
Delivery time from supplier's stock (ca.) 1 workdaysinfo_outline
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Eltako FK Fensterkontakt 20000086Eltako 20000086 FK window contact with reed relay 1NC 5VA/175VUC Window contact with reed relay, 1 breaker. Switching capacity 5W or VA. Switching voltage max. 175V UC. The window contact consists of a reed relay with connection terminals and a magnet. The normally ... Lieske Part No.: 301154 Mfg Part No: 20000086 Type: FK Fensterkontakt |
33,03 EUR 34,42 EUR
≈ £27.55 | ≈ $36.89
Made to order · Delivery time approx. 20 workdaysinfo_outline
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Eltako RS Regensensor 20000087Eltako 20000087 RS rain sensor The rain sensor RS reports rain to the downstream sensor relay LRW12D. A standard telephone cable JY(ST)Y 2x2x0.8 or equivalent is sufficient as a connecting cable. Permissible cable length 100m. Lieske Part No.: 156782 Mfg Part No: 20000087 Type: RS Regensensor |
143,70 EUR 149,75 EUR
≈ £119.85 | ≈ $160.51
Made to order · Delivery time approx. 20 workdaysinfo_outline
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Eltako 20000166Eltako 20000166 power supply SNT15-12VDC/15W 12 VDC Lieske Part No.: 1931054 Mfg Part No: 20000166 |
148,58 EUR
≈ £123.92 | ≈ $165.96
Delivery time from supplier's stock (ca.) 5 workdaysinfo_outline
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Eltako 20000167Eltako 20000167 Switching power supply SNT15-12VDC/30W 12VDC Lieske Part No.: 1931101 Mfg Part No: 20000167 |
215,05 EUR
≈ £179.35 | ≈ $240.21
Delivery time from supplier's stock (ca.) 5 workdaysinfo_outline
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Eltako 20000168Eltako 20000168 power supply SNT15-24VDC/15W 24 VDC Lieske Part No.: 1931102 Mfg Part No: 20000168 |
16,15 EUR
≈ £13.47 | ≈ $18.04
Delivery time from supplier's stock (ca.) 5 workdaysinfo_outline
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Eltako SNT15-24VDC/36W 20000169Eltako 20000169 SNT15-24VDC/36W switching power supply 24 VDC Schaltnetzteil. Nennleistung 15 W. Standby-Verlust nur 0,1 Watt Reiheneinbaugerät für Montage auf Tragschiene DIN-EN 60715 TH35 1 Teilungseinheit = 18 mm breit, 58 mm tief Bei einer Belastung ... Lieske Part No.: 888389 Mfg Part No: 20000169 Type: SNT15-24VDC/36W |
30,38 EUR 31,66 EUR
≈ £25.34 | ≈ $33.93
Made to order · Delivery time approx. 20 workdaysinfo_outline
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Eltako 20000172Eltako 20000172 Switching power supply SNT61-12VDC/10W 12VDC Lieske Part No.: 1971619 Mfg Part No: 20000172 |
21,53 EUR
≈ £17.96 | ≈ $24.05
Made to order · Delivery time approx. 20 workdaysinfo_outline
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Eltako WNT15U/3,3-12VDC 20000175Eltako 20000175 WNT15U/3,3-12VDC Uni-wide range power supply Universal wide-range switching power supply. With 5 adjustable output voltages 3.3V/2A, 5V/2A, 7.5V/1.5A, 9V/1.3A, 12V/1A. Standby loss only 0.1 watts. Modular devices for mounting on DIN-EN 60715 ... Lieske Part No.: 2116172 Mfg Part No: 20000175 Type: WNT15U/3,3-12VDC |
60,42 EUR 62,96 EUR
≈ £50.39 | ≈ $67.49
Delivery time from supplier's stock (ca.) 5 workdaysinfo_outline
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Eltako ES12-100-230V 21100000Eltako 21100000 ES12-100-230V electronic surge switch 1S 16 A 1 Schließer 16¿A/250¿V AC, 230¿V-LED Lampen bis 200¿W, Glühlampen 2000¿W. Stand-by-Verlust nur 0,3¿W. Reiheneinbaugerät für Montage auf Tragschiene DIN-EN 60715 TH35. 1 Teilungseinheit = ... Lieske Part No.: 1568822 Mfg Part No: 21100000 Type: ES12-100-230V |
26,79 EUR 27,92 EUR
≈ £22.34 | ≈ $29.92
Made to order · Delivery time approx. 20 workdaysinfo_outline
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Eltako ES12DX-UC 21100002Eltako 21100002 ES12DX-UC surge switch 1NO potential-free 1 normally open contact potential-free 16A/250V AC, 230V LED lamps up to 600W, incandescent lamps 2000W. No standby loss. Modular device for mounting on DIN-EN 60715 TH35 mounting rail. 1 division ... Lieske Part No.: 152809 Mfg Part No: 21100002 Type: ES12DX-UC |
57,28 EUR 59,70 EUR
≈ £47.77 | ≈ $63.98
Delivery time from supplier's stock (ca.) 3 workdaysinfo_outline
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Eltako S12-100-8V 21100010Eltako 21100010 S12-100-8V surge switch 1S 16A Type: S12-100-8V Lieske Part No.: 806282 Mfg Part No: 21100010 Type: S12-100-8V |
33,73 EUR 35,15 EUR
≈ £28.13 | ≈ $37.68
in stockinfo_outline
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Eltako S12-100-12V 21100011Eltako 21100011 S12-100-12V surge switch 1NO 16A 1-pole 16A/250V AC. Modular devices for mounting on DIN-EN 60715 TH35 mounting rail with manual operation and switch position indicator. 1 division unit = 18mm wide, 55mm deep. Duty cycle 100%. Lieske Part No.: 442887 Mfg Part No: 21100011 Type: S12-100-12V |
33,73 EUR 35,15 EUR
≈ £28.13 | ≈ $37.68
Delivery time from supplier's stock (ca.) 3 workdaysinfo_outline
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Eltako S12-100-24V 21100020Eltako 21100020 S12-100-24V surge switch 1NO 16A 1-pole 16A/250V AC. Modular devices for mounting on DIN-EN 60715 TH35 mounting rail with manual operation and switch position indicator. 1 division unit = 18mm wide, 55mm deep. Duty cycle 100%. Lieske Part No.: 534792 Mfg Part No: 21100020 Type: S12-100-24V |
33,73 EUR 35,15 EUR
≈ £28.13 | ≈ $37.68
Delivery time from supplier's stock (ca.) 3 workdaysinfo_outline
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Eltako S12-100-230V 21100030Eltako 21100030 S12-100-230V surge switch 1S 16A Impulse switch S 2 contacts 6A/25 V AC Modular installation device for mounting on DIN rails DIN-EN 5 22 with manual override and position indicator. Module = 8 mm wide, 55 mm deep. Lieske Part No.: 966117 Mfg Part No: 21100030 Type: S12-100-230V |
31,22 EUR 32,53 EUR
≈ £26.04 | ≈ $34.87
Delivery time from supplier's stock (ca.) 3 workdaysinfo_outline
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