{"product_id":"robertshaw-electric-hot-water-thermostat-cut-out-50-70-c-st1202134-w1m2-70-st12-70k","title":"Robertshaw Electric Hot Water Thermostat \u0026 Cut-Out 50–80°C – ST1202134, W1M2-70, ST12-70K","description":"\u003cp data-start=\"278\" data-end=\"632\"\u003eThis \u003cstrong data-start=\"283\" data-end=\"336\"\u003eElectric Hot Water Thermostat with Safety Cut-Out\u003c\/strong\u003e is a direct replacement for a wide range of thermostats used in \u003cstrong data-start=\"401\" data-end=\"446\"\u003emains pressure electric hot water systems\u003c\/strong\u003e. Designed for reliability and safety, it features an adjustable \u003cstrong data-start=\"511\" data-end=\"548\"\u003etemperature range of 50°C to 80°C\u003c\/strong\u003e and an integrated \u003cstrong data-start=\"567\" data-end=\"599\"\u003emanual reset thermal cut-out\u003c\/strong\u003e for over-temperature protection.\u003c\/p\u003e\n\u003cp data-start=\"634\" data-end=\"929\"\u003eWith a \u003cstrong data-start=\"641\" data-end=\"665\"\u003estandard SPST switch\u003c\/strong\u003e, \u003cstrong data-start=\"667\" data-end=\"688\"\u003e240V \/ 30A rating\u003c\/strong\u003e, and \u003cstrong data-start=\"694\" data-end=\"721\"\u003escrew terminal contacts\u003c\/strong\u003e, it’s easy to install and ideal for servicing or upgrading hot water systems. A clearly marked \u003cstrong data-start=\"817\" data-end=\"848\"\u003etemperature adjustment dial\u003c\/strong\u003e—in either blue or green depending on version—makes it user-friendly and precise.\u003c\/p\u003e\n\u003cp data-start=\"931\" data-end=\"948\"\u003e\u003cstrong data-start=\"931\" data-end=\"948\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"951\" data-end=\"1004\"\u003e\n\u003cstrong data-start=\"951\" data-end=\"973\"\u003eTemperature Range:\u003c\/strong\u003e Adjustable from 50°C to 80°C\u003c\/li\u003e\n\u003cli data-start=\"1007\" data-end=\"1058\"\u003e\n\u003cstrong data-start=\"1007\" data-end=\"1032\"\u003eSafety Cut-Out (ECO):\u003c\/strong\u003e Manual reset at 84–90°C\u003c\/li\u003e\n\u003cli data-start=\"1061\" data-end=\"1084\"\u003e\n\u003cstrong data-start=\"1061\" data-end=\"1077\"\u003eSwitch Type:\u003c\/strong\u003e SPST\u003c\/li\u003e\n\u003cli data-start=\"1087\" data-end=\"1116\"\u003e\n\u003cstrong data-start=\"1087\" data-end=\"1106\"\u003eVoltage Rating:\u003c\/strong\u003e 240V AC\u003c\/li\u003e\n\u003cli data-start=\"1119\" data-end=\"1148\"\u003e\n\u003cstrong data-start=\"1119\" data-end=\"1138\"\u003eCurrent Rating:\u003c\/strong\u003e 30 Amps\u003c\/li\u003e\n\u003cli data-start=\"1151\" data-end=\"1174\"\u003e\n\u003cstrong data-start=\"1151\" data-end=\"1168\"\u003eDifferential:\u003c\/strong\u003e 8°C\u003c\/li\u003e\n\u003cli data-start=\"1177\" data-end=\"1246\"\u003e\n\u003cstrong data-start=\"1177\" data-end=\"1191\"\u003eDial Type:\u003c\/strong\u003e Blue or green adjustment dial (depending on version)\u003c\/li\u003e\n\u003cli data-start=\"1249\" data-end=\"1304\"\u003e\n\u003cstrong data-start=\"1249\" data-end=\"1267\"\u003eMounting Type:\u003c\/strong\u003e Surface-mount with screw terminals\u003c\/li\u003e\n\u003cli data-start=\"1307\" data-end=\"1379\"\u003e\n\u003cstrong data-start=\"1307\" data-end=\"1323\"\u003eApplication:\u003c\/strong\u003e Suits many modern mains pressure electric water heaters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1381\" data-end=\"1407\"\u003e\u003cstrong data-start=\"1381\" data-end=\"1407\"\u003eCommon Fault Symptoms:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"1410\" data-end=\"1424\"\u003eNo hot water\u003c\/li\u003e\n\u003cli data-start=\"1427\" data-end=\"1459\"\u003eInconsistent water temperature\u003c\/li\u003e\n\u003cli data-start=\"1462\" data-end=\"1498\"\u003eTripping due to thermostat failure\u003c\/li\u003e\n\u003cli data-start=\"1501\" data-end=\"1544\"\u003eAgeing or faulty grey-body thermostat units\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1546\" data-end=\"1710\"\u003e\u003cstrong data-start=\"1546\" data-end=\"1565\"\u003eCompatibility –\u003c\/strong\u003e Make sure to check that this part is compatible with your model – check your model number label and compare it to the values in the description.\u003c\/p\u003e\n\u003cp data-start=\"1712\" data-end=\"1886\"\u003e\u003cstrong data-start=\"1712\" data-end=\"1754\"\u003eEquivalent to Robertshaw Part Numbers:\u003c\/strong\u003e\u003cbr data-start=\"1754\" data-end=\"1757\"\u003eST12-70K, ST12-70, ST1201, ST1201133, ST1202134, ST1203133, ST1205113, ST1205, 7982830, TST1201, HW900, 1170089WS, W1M2-70, W1M70\u003c\/p\u003e\n\u003cp data-start=\"1888\" data-end=\"2069\"\u003e\u003cstrong data-start=\"1888\" data-end=\"1908\"\u003eAlso Similar To:\u003c\/strong\u003e\u003cbr data-start=\"1908\" data-end=\"1911\"\u003eWIM2\/70, WIM3-70-80, W1M2\/80, W1M2503, W1M25085, W1M25034, EWT1L2-501, EWT1L2-501N, EWT1L2-5085, EWT1L2-80KS, EWT1L2-523, EWT1L2-523L, EWT1L2-523N, EWT1L2-540EWT1L2-70K WIM270 20431-3 W1M-70 6060605 ST12-70KS ST1201133 ST12-70 W1M2\/70 ST1204133 EWT1L2-523 1317213 GRIST-70 EWT1L2-513 EWT1L2-513N EWT1L2-513L EWT1L2-540 ST1201 ST1203133 EWT1L2-508 W1M2508 EWT1L2-5085 W1M25085 1M25034K EWT1L2-70KE W1M25034KE EWT1L2-70KS W1M2534K EWT1L2-520 W1M2520 EWT1L2-521 rheem 052012 EWT1L2-523 W1M2523 EWT1L2-523B EWT1L2-523B1L EWT1L2-523N EWT1L2-530 EWT1L2-535 EWT1L2-538 EWT1L2-540N EWT1L2-540NZ EWT1L2-543N EWT1L2-560\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-start=\"1888\" data-end=\"2069\"\u003eST12551K ST551 \u003c\/p\u003e","brand":"Home Appliances Online","offers":[{"title":"Default Title","offer_id":50202819264802,"sku":"HAST1270K","price":49.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/0504\/0930\/files\/Screenshot_2025-08-06_at_4.20.48_PM.png?v=1754454061","url":"https:\/\/www.homeappliancesonline.co.nz\/products\/robertshaw-electric-hot-water-thermostat-cut-out-50-70-c-st1202134-w1m2-70-st12-70k","provider":"Home Appliances Online","version":"1.0","type":"link"}