{"product_id":"emerson-white-rodgers-90-t40m3-control-transformer","title":"EMERSON \/ White-Rodgers 90-T40M3 Control Transformer","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"18\" data-end=\"632\"\u003eThe EMERSON \/ White-Rodgers 90-T40M3 \u003ca href=\"https:\/\/plgautomation.com\/collections\/power-supplies-protection\"\u003eControl Transformer \u003c\/a\u003eis used in residential, commercial, and industrial HVAC systems for stepping down line voltage to low voltage control power for thermostats, relays, gas valves, contactors, and HVAC control circuits. Commonly installed in furnaces, air handlers, refrigeration systems, rooftop HVAC units, and industrial control panels. Maintenance teams, HVAC technicians, and electrical contractors use this part for transformer replacement, control system repair, retrofit projects, and restoration of low voltage power distribution. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"634\" data-end=\"651\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"653\" data-end=\"1221\"\u003eThe EMERSON 90-T40M3 transformer is commonly used in HVAC and industrial environments requiring reliable low voltage power conversion and dependable control circuit operation. It is frequently installed in furnace control systems, air conditioning equipment, refrigeration assemblies, and automation panels where stable 24VAC output is critical for maintaining thermostat communication and HVAC component control. The transformer supports continuous-duty operation in heating, cooling, and industrial process control applications.\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1223\" data-end=\"1252\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1254\" data-end=\"2072\"\u003e• Brand: EMERSON \/ White-Rodgers\u003cbr data-start=\"1286\" data-end=\"1289\"\u003e• Part Number: 90-T40M3\u003cbr data-start=\"1312\" data-end=\"1315\"\u003e• Alternate Number: 90T40M3\u003cbr data-start=\"1342\" data-end=\"1345\"\u003e• Product Type: Class 2 Control Transformer\u003cbr data-start=\"1388\" data-end=\"1391\"\u003e• Power Rating: 40 VA\u003cbr data-start=\"1412\" data-end=\"1415\"\u003e• Primary Voltage: 120\/208\/240 VAC\u003cbr data-start=\"1449\" data-end=\"1452\" data-is-only-node=\"\"\u003e• Secondary Voltage: 24 VAC\u003cbr data-start=\"1479\" data-end=\"1482\"\u003e• Secondary Current Rating: 1.67A\u003cbr data-start=\"1515\" data-end=\"1518\"\u003e• Frequency Rating: 50\/60 Hz\u003cbr data-start=\"1546\" data-end=\"1549\"\u003e• Transformer Type: Step-Down HVAC Control Transformer\u003cbr data-start=\"1603\" data-end=\"1606\"\u003e• Mounting Style: Multi-Mount \/ Foot Mount\u003cbr data-start=\"1648\" data-end=\"1651\"\u003e• Primary Connection Type: Lead Wires\u003cbr data-start=\"1688\" data-end=\"1691\"\u003e• Secondary Connection Type: Lead Wires\u003cbr data-start=\"1730\" data-end=\"1733\"\u003e• Application: Low Voltage HVAC Power Conversion\u003cbr data-start=\"1781\" data-end=\"1784\"\u003e• Compatible Equipment: Furnaces, Air Handlers, and HVAC Systems\u003cbr data-start=\"1848\" data-end=\"1851\"\u003e• Industrial Use: Residential and Commercial HVAC Systems\u003cbr data-start=\"1908\" data-end=\"1911\"\u003e• Construction Type: Class 2 Energy Limiting Transformer\u003cbr data-start=\"1967\" data-end=\"1970\"\u003e• Operating Environment: Continuous-Duty Electrical Applications\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"2074\" data-end=\"2098\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"2100\" data-end=\"2209\"\u003e• Honeywell \u003ca href=\"https:\/\/plgautomation.com\/products\/honeywell-at140a1000-transformer-24-vac-40-va-120v-60hz?_pos=1\u0026amp;_sid=474e64273\u0026amp;_ss=r\"\u003eAT140A1000 \u003c\/a\u003eTransformer\u003cbr data-start=\"2134\" data-end=\"2137\"\u003e• Packard PF42440 Control Transformer\u003cbr data-start=\"2174\" data-end=\"2177\"\u003e• Mars 50354 Class 2 Transformer\u003c\/p\u003e","brand":"WHITE","offers":[{"title":"New","offer_id":51732785103150,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_59bd7d18-8fd4-4079-9c5a-d6a35f86f8ff.jpg?v=1770600499","url":"https:\/\/plgautomation.com\/products\/emerson-white-rodgers-90-t40m3-control-transformer","provider":"PLG Automation ","version":"1.0","type":"link"}