{"product_id":"rauchgas-thermostat-stm-rw-2-40-120-c-tauchrohrlange-150-mm","title":"Flue gas thermostat STM-RW-2 +40...+120°C Immersion tube length 150 mm","description":"\u003cul\u003e\n\n\u003cli\u003e TÜV tested according to DIN 3440, protection class IP 54\u003c\/li\u003e\n\n\u003cli\u003e For flue gas temperature monitoring of solid fuel boilers in bivalent operation with oil-fired boilers\u003c\/li\u003e\n\n\u003cli\u003e works on the principle of rod expansion\u003c\/li\u003e\n\n\u003cli\u003e The immersion tube and a metal rod arranged inside it have different coefficients of expansion, resulting in a temperature-dependent difference in length between them.\u003c\/li\u003e\n\n \u003cli\u003eThey act via a translation mechanism on a microswitch, which is activated above a set limit temperature.\u003c\/li\u003e\n\n\u003cli\u003e After the immersion tube cools by approximately 1030 K, the microswitch is reset.\u003c\/li\u003e\n\n\u003cli\u003e In the event of a dip tube rupture, the electrical circuit is permanently opened.\u003c\/li\u003e\n\n\u003cli\u003e STMRW2 and STMRW2\/OS\u003c\/li\u003e\n\n\u003cli\u003e STM: Rod thermostat with microswitch\u003c\/li\u003e\n\n\u003cli\u003e RW: Exhaust gas temperature monitor (ATW) with changeover contact\u003c\/li\u003e\n\n\u003cli\u003e with internal scale\u003c\/li\u003e\n\n\u003cli\u003e Immersion tube length: 150 mm\u003c\/li\u003e\n\n\u003cli\u003e Housing: Die-cast aluminum, with sealable screws\u003c\/li\u003e\n\n\u003cli\u003e Connection: DN 15 (G 1\/2\"), steel\u003c\/li\u003e\n\n\u003cli\u003e Setpoint adjustment: adjustable via internal scale on the setpoint spindle.\u003c\/li\u003e\n\n\u003cli\u003e Switching element type STMRW2: 1-pole microswitch with changeover contact\u003c\/li\u003e\n\n\u003cli\u003e Switching element type STMRW2\/OS: Microswitch with 2 separate circuits, 1 x normally open, 1 x normally closed\u003c\/li\u003e\n\n\u003cli\u003e Usage position: can be used in any way\u003c\/li\u003e\n\n\u003cli\u003e Protection class: IP 54\u003c\/li\u003e\n\n\u003cli\u003e Limit range: +40°C to +120°C, factory set at +100°C\u003c\/li\u003e\n\n\u003cli\u003e Switching point accuracy: 0 to +10 K\u003c\/li\u003e\n\n\u003cli\u003e max. switching capacity: AC 10 (2) A, 250 V, cos. = 1 (0.6), DC 0.25 A, 250 V\u003c\/li\u003e\n\n \u003cli\u003eSwitching differential: STMRW2: 1018 K, STMRW2\/OS: 1030 K\u003c\/li\u003e\n\n\u003cli\u003e Time constant: Flue gas: approx. 45 sec. Average ambient temperature influence\u003c\/li\u003e\n\n\u003cli\u003e Switching point shift related to the deviation: from +22°C ~ 0.07 K\/K\u003c\/li\u003e\n\n\u003cli\u003e Permissible ambient temperature at the sensor: +700°C\u003c\/li\u003e\n\n\u003cli\u003e Permissible ambient temperature at the switching head: + 80°C\u003c\/li\u003e\n\n\u003cli\u003e Permissible storage temperature: max. +80°C, min. 50°C\u003c\/li\u003e\n\n\u003cli\u003e OS: like STM2\/RW with microswitch and 2 separate circuits, 1 x normally open, 1 x normally closed\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n","brand":"JUMO","offers":[{"title":"10-18K \/ 1-pole\/switch \/ +40 - +120°C","offer_id":56778079437181,"sku":"60 063 01","price":156.55,"currency_code":"CHF","in_stock":true},{"title":"10-18K \/ 1-pole\/switch \/ +20 - +400°C","offer_id":56778079469949,"sku":"60 063 02","price":156.55,"currency_code":"CHF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0912\/2647\/2829\/files\/img_6006301--1500.jpg?v=1756190658","url":"https:\/\/www.emmenbaum.ch\/en\/products\/rauchgas-thermostat-stm-rw-2-40-120-c-tauchrohrlange-150-mm","provider":"EMMENBAUM SHOP","version":"1.0","type":"link"}