{"product_id":"abb-ss822-3bsc610068r1-voting-units","title":"ABB SS822 3BSC610068R1 Voting Units","description":"\u003cp\u003eConfigured for power redundancy and voting execution in 24 VDC distribution networks, the \u003cstrong\u003eABB SS822 3BSC610068R1\u003c\/strong\u003e (\u003cstrong\u003eSS822\u003c\/strong\u003e Voter Unit) provides direct physical\/electrical execution. It handles dual power supply inputs to ensure uninterrupted continuous operation across critical control loops, preventing system shut downs caused by single-point power source failures through direct diode auctioneering and real-time status supervision.\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\u003eSS822 3BSC610068R1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eSweden\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e350 g (0.77 lbs.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e32 mm x 125 mm x 117 mm (1.26 in x 4.90 in x 4.61 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e55 deg C max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eHeat dissipation: 18 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003ePower Supply Voter Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Input Current\u003c\/td\u003e\n\u003ctd\u003e2 x 10 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Voltage\u003c\/td\u003e\n\u003ctd\u003e2 x 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Input Voltage\u003c\/td\u003e\n\u003ctd\u003e60 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Output Current\u003c\/td\u003e\n\u003ctd\u003e10 A (20 A in parallel operation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Output Current\u003c\/td\u003e\n\u003ctd\u003e25 A (Overload)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage Drop\u003c\/td\u003e\n\u003ctd\u003e0.85 V typ. at max. current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShort Circuit Limit\u003c\/td\u003e\n\u003ctd\u003eMax 25 A RMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupervision Relay\u003c\/td\u003e\n\u003ctd\u003eIntegrated (Yes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Spacing\u003c\/td\u003e\n\u003ctd\u003eWidth: 15 mm (0.59 in), Height: 25 mm (1.00 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003ePower Supply Redundancy and Backplane Bus Velocity Integration\u003c\/h3\u003e\n\u003cp\u003eThe ABB SS822 voter unit acts as an essential decoupling component within high-availability control architectures. Designed to seamlessly interface alongside System 800xA rail-mounted power systems, the unit utilizes low-forward-voltage Schottky diode arrays to minimize internal heat dissipation (18 W maximum) while preventing back-feeding into a faulted input supply. Its integrated supervision relay continuously monitors input voltage thresholds, instantly signaling status changes across backplane bus communication velocity networks and I\/O channels without introducing latency or deterministic network jitter to the primary CPU controller.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the maximum current rating when operating two SS822 units or input paths in parallel?\u003c\/p\u003e\n\u003cp\u003eA: The rated output current is 10 A for single-channel operation, expanding up to 20 A when operated in parallel configuration under standard 55 deg C thermal limits.\u003c\/p\u003e\n\u003cp\u003eQ: How does the SS822 indicate a power supply failure on one of its dual inputs?\u003c\/p\u003e\n\u003cp\u003eA: The module contains an integrated supervision relay with dry contacts that toggle state when an input rail drops below operational voltage limits, enabling direct connection to PLC alarm digital inputs.\u003c\/p\u003e\n\u003cp\u003eQ: What is the maximum voltage drop across the SS822 voting module during full load?\u003c\/p\u003e\n\u003cp\u003eA: The typical output voltage regulation drop across internal decoupling components is 0.85 VDC at maximum continuous rated load current.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIN-Rail Mounting and Thermal Clearance\u003c\/strong\u003e: Mount the SS822 unit vertically onto standard EN 60715 DIN rail (35 mm). Maintain a minimum clearance spacing of 15 mm horizontally between adjacent modules and 25 mm vertically above and below the unit to ensure adequate natural convective air flow for heat dissipation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring and Cable Shielding\u003c\/strong\u003e: Utilize copper conductors rated for at least 75 deg C. Strip wire ends according to terminal block specification (typically 7 mm) and torque terminal screws appropriately. Route incoming 24 VDC dual supply cables in separate wire ducts away from high-voltage AC lines or fast-transient switching circuits to avoid induced EMI.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding and Earth Bonding\u003c\/strong\u003e: Ensure direct metallic contact between the module DIN-rail mounting clip and the grounded backplate. Connect the system protective earth (PE) busbar directly to the panel chassis with low-impedance ground straps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay Supervision Hookup\u003c\/strong\u003e: Wire the supervision relay contact terminals to a monitored 24 VDC digital input channel on the DCS\/PLC I\/O rack. Verify contact continuity prior to powering the primary and secondary 24 VDC power supply channels.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":53212550463797,"sku":"SS822 3BSC610068R1","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/SS822.png?v=1784876883","url":"https:\/\/www.5gplc.com\/products\/abb-ss822-3bsc610068r1-voting-units","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}