{"product_id":"nfdr541-p50-yokogawa-relay-output-module","title":"NFDR541-P50 Yokogawa Relay Output Module","description":"\u003ch2\u003eYokogawa NFDR541-P50 Relay Output Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa NFDR541-P50\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eNFDR541\u003c\/strong\u003e relay output module, serves as a dedicated hardware component for digital actuation within CENTUM VP and ProSafe‑RS control systems.\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\u003eModel\u003c\/th\u003e\n\u003ctd\u003eNFDR541-P50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003eStandard Yokogawa I\/O module form factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Temp\u003c\/th\u003e\n\u003ctd\u003eControl‑room rated thermal range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Consumption\u003c\/th\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eChannels\u003c\/th\u003e\n\u003ctd\u003e16 independent relay outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eContact Type\u003c\/th\u003e\n\u003ctd\u003eForm A \/ SPST‑NO dry contacts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated Voltage\u003c\/th\u003e\n\u003ctd\u003e24–125 VDC; 100–240 VAC (50\/60 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Load Current\u003c\/th\u003e\n\u003ctd\u003e2.0 A\/channel at 24 VDC or 100–220 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCommon Configuration\u003c\/th\u003e\n\u003ctd\u003eShared common per 8 channels (max 8 A per common)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIsolation\u003c\/th\u003e\n\u003ctd\u003e2000 VAC field‑to‑system withstanding voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eRelay Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4–20 mA HART Loop Protocol \u0026amp; Channel‑to‑Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eAlthough NFDR‑series relay modules do not process analog loops directly, Yokogawa’s DCS hardware design applies the same isolation principles used in HART and Fieldbus subsystems. Each relay channel is mechanically isolated, preventing cross‑channel interference when switching inductive or capacitive loads. The shared common bus per 8 channels is designed with deterministic isolation rules, ensuring stable switching behavior in simplex and redundant architectures.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the NFDR541‑P50 be hot‑swapped? A: No, relay output modules must be inserted or removed only when the I\/O segment is de‑energized.\u003c\/p\u003e\n\u003cp\u003eQ: What is the maximum current supported per common bus? A: Each common supports up to 8 A total, shared across 8 relay channels.\u003c\/p\u003e\n\u003cp\u003eQ: How is isolation achieved between field and system circuits? A: The module provides 2000 VAC field‑to‑system isolation, ensuring safe separation between logic and external circuits.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRoute relay output wiring separately from analog loops to avoid impedance coupling.\u003c\/li\u003e\n\u003cli\u003eMaintain shield continuity on digital output wiring to reduce induced noise.\u003c\/li\u003e\n\u003cli\u003eEnsure terminal clamps fully secure conductors to prevent vibration‑related loosening.\u003c\/li\u003e\n\u003cli\u003eVerify correct landing of excitation, return, and load conductors before energizing.\u003c\/li\u003e\n\u003cli\u003eInspect relay module connectors for contamination or mechanical wear prior to installation.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":44088089673802,"sku":"NFDR541-P50","price":2800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/8569\/3770\/files\/NFSB100-S50_3.png?v=1744096124","url":"https:\/\/www.topbrandsplc.com\/products\/nfdr541-p50-yokogawa-relay-output-module","provider":"Topbrands PLC Limited","version":"1.0","type":"link"}