{"product_id":"arcus-sk07-tthc-4b","title":"SK07-TTHC-4B - KNX Behind-Switch Temp\/Humidity Module, 2nd Temperature Input, without Sensors","description":"\u003cp\u003eThe SK07-TTHC-4B is a flush-box KNX controller module that installs behind the switch design of your choice. It reads an external HTU21 temperature\/humidity element plus a PT1000 probe for a second temperature, such as floor or supply temperature. Both sensors are sold separately.\u003c\/p\u003e\u003cp\u003eIt calculates absolute humidity, dew point and enthalpy and includes an integrated room temperature controller (RTR) and four binary inputs\/outputs. The module is bus powered and configured in ETS with the HLK305 application.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eConnections for external HTU21 temperature\/humidity element and PT1000 probe (both not included)\u003c\/li\u003e\n\u003cli\u003eTemperature -25 to +80 °C (-13 to 176 °F), ±0.4 °C (±0.72 °F) between 5 and 60 °C (41 to 140 °F); 0.02 °C (0.04 °F) resolution\u003c\/li\u003e\n\u003cli\u003eHumidity 0-100 % RH, ±3 % RH between 20 and 80 % RH\u003c\/li\u003e\n\u003cli\u003eCalculates absolute humidity, dew point and enthalpy\u003c\/li\u003e\n\u003cli\u003eSecond temperature via PT1000, -50 to +400 °C (-58 to 752 °F) depending on probe\u003c\/li\u003e\n\u003cli\u003e4 binary inputs\/outputs\u003c\/li\u003e\n\u003cli\u003eBehind-the-switch module, 50 x 50 x 20 mm (1.97 x 1.97 x 0.79 in); bus powered; ETS application HLK305\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eArticle no.\u003c\/th\u003e\n\u003ctd\u003e30540780\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKNX bus voltage\u003c\/th\u003e\n\u003ctd\u003eKNX 21-32 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower consumption\u003c\/th\u003e\n\u003ctd\u003eapprox. 240 mW at 24 VDC (bus powered)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAuxiliary supply\u003c\/th\u003e\n\u003ctd\u003eNot required (bus powered)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasuring\u003c\/th\u003e\n\u003ctd\u003eExternal HTU21 temperature\/humidity element (not included); Temperature -25..+80 °C (-13 to 176 °F), res. 0.02 °C (0.04 °F), accuracy ±0.4 °C (±0.72 °F) (5..60 °C (41 to 140 °F)) else ±0.8 °C (±1.4 °F); Humidity 0..100 % rH, res. 0.02 % rH, accuracy ±3 % rH (20..80 %) at +20 °C (68 °F) else ±5 % rH; calculates abs. humidity, dew point, enthalpy; 2nd temperature: external PT1000 input -50..+400 °C (-58 to 752 °F) (accuracy depends on probe; probe not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInputs \/ outputs \u0026amp; connections\u003c\/th\u003e\n\u003ctd\u003e4 binary inputs\/outputs; connections for external HTU21 and PT1000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProtection rating\u003c\/th\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e50 x 50 x 20 (W x H x D), 55 mm (2.17 in) diagonal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eBehind-the-switch module in standard flush-mounted box, indoor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating temperature\u003c\/th\u003e\n\u003ctd\u003e-25 to +80 °C (-13 to 176 °F) (storage -25 to +80 °C (-13 to 176 °F))\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eApplication note:\u003c\/strong\u003e Requires an external HTU21 temperature\/humidity element and a PT1000 probe, both sold separately.\u003c\/p\u003e\u003ch3\u003eDownloads\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.arcus-eds.de\/fileadmin\/download.arcus-eds.de\/2000_HLK\/2600_TTHC_IP20\/2630_00_e9_SK07-TTHC-4B.pdf\" target=\"_blank\" rel=\"noopener\"\u003eProduct datasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.arcus-eds.de\/fileadmin\/download.arcus-eds.de\/2000_HLK\/2000_HLK305_APP\/2000_e3_APB_HLK305.pdf\" target=\"_blank\" rel=\"noopener\"\u003eApplication manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.arcus-eds.de\/fileadmin\/download.arcus-eds.de\/2000_HLK\/2000_HLK305_APP\/HLK305_v10.zip\" target=\"_blank\" rel=\"noopener\"\u003eETS application\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003e(CE certified; not UL\/NRTL listed — verify local code requirements before specifying in US installations)\u003c\/em\u003e\u003c\/p\u003e","brand":"ARCUS EDS","offers":[{"title":"Default Title","offer_id":50554329301248,"sku":"30540780","price":190.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/4161\/5360\/files\/2630_SK07-TTHC-4B_30540780_a.png?v=1791428482","url":"https:\/\/www.knxsupply.com\/products\/arcus-sk07-tthc-4b","provider":"KNX Supply","version":"1.0","type":"link"}