{"product_id":"honeywell-mc-tdoy23-80366189-175-digital-output-relay-fta","title":"Honeywell MC-TDOY23 80366189-175 Digital Output Relay FTA","description":"\u003ch2\u003eHoneywell MC-TDOY23 80366189-175 Digital Output Relay FTA\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eHoneywell MC‑TDOY23 80366189‑175\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eMC‑TDOY23\u003c\/strong\u003e digital output relay FTA, operates as a 16‑point relay‑based discrete output interface for AC\/DC load switching within Honeywell controller and Safety Manager platforms.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eMC‑TDOY23 \/ 80366189‑175\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eHoneywell control and safety platforms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eStandard FTA mass (shipping weight varies by assembly)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eRelay FTA form factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eIndustrial ambient range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eLogic‑side 24 VDC control input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eInput Control Voltage\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e12–24 VDC (nominal 24 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eOutput Voltage Range\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e5–250 V AC\/DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eMax Load Current\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eUp to 10 A per relay contact (typical use ~1 A for extended life)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eResponse Time\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e5–10 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eIsolation Rating\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e1500 VDC input‑to‑output isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eChannel Count\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e16 independent relay output points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eRelay Life\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eMechanical\/electrical life up to 1,000,000 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel‑to‑Channel Isolation in Honeywell Relay FTAs\u003c\/h3\u003e\n\u003cp\u003eRelay FTAs in Honeywell systems maintain deterministic separation between logic‑side control voltage and field‑side load circuits. The MC‑TDOY23 applies 1500 VDC isolation to prevent inductive spikes from propagating into the controller backplane. This isolation behavior aligns with Honeywell’s broader process‑control design practices, including predictable boundaries used in 4‑20 mA HART loop protocol and Fieldbus\/Profibus gateway modules. Independent relay channels ensure that AC\/DC loads do not cross‑couple during switching events.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the relay FTA switch both AC and DC loads?\u003c\/strong\u003e A: Yes. The output stage supports 5–250 V AC\/DC across all 16 relay channels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is there electrical isolation between the logic input and relay output?\u003c\/strong\u003e A: Yes. The module provides 1500 VDC isolation to protect the controller from field transients.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does relay life depend on load current?\u003c\/strong\u003e A: Yes. Although contacts can support up to 10 A, operating near 1 A significantly extends mechanical and electrical life.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMaintain correct polarity on the 24 VDC logic‑side control wiring.\u003c\/li\u003e\n\u003cli\u003eRoute AC\/DC load wiring separately from logic conductors to reduce inductive coupling.\u003c\/li\u003e\n\u003cli\u003eObserve recommended load current limits to maximize relay life.\u003c\/li\u003e\n\u003cli\u003eVerify isolation and switching behavior using system diagnostics after installation.\u003c\/li\u003e\n\u003cli\u003eEnsure cabinet airflow prevents thermal accumulation around relay assemblies\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":44539531133027,"sku":"MC-TDOY23 80366189-175","price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/2775\/3315\/files\/d743c543fe157b7463addfef53f97bbd.jpg?v=1728756020","url":"https:\/\/precisemodule.com\/products\/honeywell-mc-tdoy23-80366189-175-digital-output-relay-fta","provider":"Precise Module Ltd.","version":"1.0","type":"link"}