{"product_id":"32-channel-relay-output-board-yokogawa-arm55c-000","title":"32-Channel Relay Output Board | Yokogawa ARM55C-000","description":"\u003ch2\u003eYokogawa ARM55C-000 Relay Output Board\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa ARM55C-000\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eARM55C\u003c\/strong\u003e Mechanical Relay Output Board, operates as a dedicated hardware component for high-density dry-contact signal switching and electrical load isolation within CENTUM VP platforms. The board conditions 24 VDC control signals into 32 independent relay outputs to drive field actuators, solenoids, and interposing circuits across FIO subsystems.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eARM55C-000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e250 x 150 x 50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-10 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Humidity\u003c\/td\u003e\n\u003ctd\u003e5 to 85% RH (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e24 VDC nominal (0.85 A max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e12 W typical (all relays energized)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e32 dry-contact mechanical relay outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Configuration\u003c\/td\u003e\n\u003ctd\u003eSelectable Form-A (NO) or Form-B (NC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Load Rating\u003c\/td\u003e\n\u003ctd\u003e2 A at 250 VAC \/ 2 A at 30 VDC \/ 0.1 A at 125 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Load Rating\u003c\/td\u003e\n\u003ctd\u003e10 mA at 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInitial Contact Resistance\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;= 100 mohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;= 10 Mohm at 500 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Time\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;= 15 ms (energize), \u0026lt;= 10 ms (de-energize)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMechanical Life\u003c\/td\u003e\n\u003ctd\u003e10,000,000 operations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical Life\u003c\/td\u003e\n\u003ctd\u003e50,000 operations at rated load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatus Indicators\u003c\/td\u003e\n\u003ctd\u003e32 red channel LEDs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eBackplane or DIN-rail (with adapter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCE, UL, CSA\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 \u0026amp; Cold Junction Compensation\u003c\/h3\u003e\n\u003cp\u003eThe ARM55C-000 features true mechanical relay galvanic isolation between internal low-voltage control logic and high-power field-side wiring. Each of the 32 channels operates via dry contacts, preventing high-voltage surges, transient spikes, and inductive field noise from coupling back to the CENTUM VP backplane bus. When integrated with analog temperature networks, the board provides clean digital switching paths that prevent ground potential offsets from degrading cold junction compensation (CJC) accuracy on adjacent thermocouple input cards. Internal 24 VDC coil distribution circuits include reverse-polarity protection to maintain stable contact actuation during heavy switching loads.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How are individual outputs configured between Normally Open (NO) and Normally Closed (NC) modes on the ARM55C-000?\u003c\/p\u003e\n\u003cp\u003eA: Technicians select Form-A (NO) or Form-B (NC) contact logic per channel by setting physical jumpers or wiring output conductors to the designated NO\/NC terminal points on the terminal block assembly, enabling precise alignment with field fail-safe logic requirements.\u003c\/p\u003e\n\u003cp\u003eQ: What are the electrical limitations when switching inductive DC loads with the ARM55C-000 relays?\u003c\/p\u003e\n\u003cp\u003eA: While the contacts support resistive loads up to 2 A at 30 VDC, switching inductive DC loads (such as heavy solenoid valves) reduces contact lifespan due to arc erosion. Installers must fit external freewheeling flyback diodes or RC snubber networks directly across field inductive loads to suppress back-EMF spikes and preserve the 50,000-operation electrical life rating.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the ARM55C-000 securely onto its backplane chassis or standard DIN-rail using compatible mounting hardware, ensuring solid earth grounding through the metal mounting structure. Strip field output wires to specified gauge standards and land conductors onto pressure clamp terminals, tightening screws to avoid high-resistance terminations. Separate field-side AC power distribution cables from low-voltage DC control signal harnesses to prevent electromagnetic interference. Ensure cabinet thermal convection provides adequate ventilation so ambient operating temperatures remain between -10 and 55 deg C under full 32-channel continuous load operationYokogawa ARM55C-000 Relay Output Board\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa ARM55C-000\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eARM55C\u003c\/strong\u003e Mechanical Relay Output Board, operates as a dedicated hardware component for high-density dry-contact signal switching and electrical load isolation within CENTUM VP platforms. The board conditions 24 VDC control signals into 32 independent relay outputs to drive field actuators, solenoids, and interposing circuits across FIO subsystems.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eARM55C-000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e250 x 150 x 50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-10 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Humidity\u003c\/td\u003e\n\u003ctd\u003e5 to 85% RH (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e24 VDC nominal (0.85 A max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e12 W typical (all relays energized)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e32 dry-contact mechanical relay outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Configuration\u003c\/td\u003e\n\u003ctd\u003eSelectable Form-A (NO) or Form-B (NC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Load Rating\u003c\/td\u003e\n\u003ctd\u003e2 A at 250 VAC \/ 2 A at 30 VDC \/ 0.1 A at 125 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Load Rating\u003c\/td\u003e\n\u003ctd\u003e10 mA at 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInitial Contact Resistance\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;= 100 mohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;= 10 Mohm at 500 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Time\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;= 15 ms (energize), \u0026lt;= 10 ms (de-energize)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMechanical Life\u003c\/td\u003e\n\u003ctd\u003e10,000,000 operations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical Life\u003c\/td\u003e\n\u003ctd\u003e50,000 operations at rated load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatus Indicators\u003c\/td\u003e\n\u003ctd\u003e32 red channel LEDs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eBackplane or DIN-rail (with adapter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCE, UL, CSA\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 \u0026amp; Cold Junction Compensation\u003c\/h3\u003e\n\u003cp\u003eThe ARM55C-000 features true mechanical relay galvanic isolation between internal low-voltage control logic and high-power field-side wiring. Each of the 32 channels operates via dry contacts, preventing high-voltage surges, transient spikes, and inductive field noise from coupling back to the CENTUM VP backplane bus. When integrated with analog temperature networks, the board provides clean digital switching paths that prevent ground potential offsets from degrading cold junction compensation (CJC) accuracy on adjacent thermocouple input cards. Internal 24 VDC coil distribution circuits include reverse-polarity protection to maintain stable contact actuation during heavy switching loads.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How are individual outputs configured between Normally Open (NO) and Normally Closed (NC) modes on the ARM55C-000?\u003c\/p\u003e\n\u003cp\u003eA: Technicians select Form-A (NO) or Form-B (NC) contact logic per channel by setting physical jumpers or wiring output conductors to the designated NO\/NC terminal points on the terminal block assembly, enabling precise alignment with field fail-safe logic requirements.\u003c\/p\u003e\n\u003cp\u003eQ: What are the electrical limitations when switching inductive DC loads with the ARM55C-000 relays?\u003c\/p\u003e\n\u003cp\u003eA: While the contacts support resistive loads up to 2 A at 30 VDC, switching inductive DC loads (such as heavy solenoid valves) reduces contact lifespan due to arc erosion. Installers must fit external freewheeling flyback diodes or RC snubber networks directly across field inductive loads to suppress back-EMF spikes and preserve the 50,000-operation electrical life rating.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the ARM55C-000 securely onto its backplane chassis or standard DIN-rail using compatible mounting hardware, ensuring solid earth grounding through the metal mounting structure. Strip field output wires to specified gauge standards and land conductors onto pressure clamp terminals, tightening screws to avoid high-resistance terminations. Separate field-side AC power distribution cables from low-voltage DC control signal harnesses to prevent electromagnetic interference. Ensure cabinet thermal convection provides adequate ventilation so ambient operating temperatures remain between -10 and 55 deg C under full 32-channel continuous load operation.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43832088887386,"sku":"ARM55C","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/16._9d0c97ba-7279-46b2-bf99-2a564ae0bd6f.jpg?v=1786505903","url":"https:\/\/www.spareoil.com\/products\/32-channel-relay-output-board-yokogawa-arm55c-000","provider":"SpareOil Automation","version":"1.0","type":"link"}