{"product_id":"sper1c1-aaj-abb-combiflex-trip-circuit-supervision-relay","title":"SPER1C1-AAJ ABB COMBIFLEX Trip Circuit Supervision Relay","description":"\u003ch2\u003eABB SPER1C1-AAJ COMBIFLEX Trip Circuit Supervision Relay\u003c\/h2\u003e\n\u003cp\u003eThe ABB \u003cstrong\u003eSPER1C1-AAJ\u003c\/strong\u003e (part number 3BDH000338R1) is a trip circuit supervision relay engineered to continuously monitor critical control and signaling circuits in power distribution and protection systems. It detects open circuits, loss of control voltage, and connection faults in circuit-breaker trip paths and disconnector control circuits during both open and closed breaker states.\u003c\/p\u003e\n\u003ch3\u003eCircuit Supervision and Electrical Ratings\u003c\/h3\u003e\n\u003cp\u003eThe module features a wide auxiliary operating voltage range spanning from 40 to 265 VDC. This broad operational window allows the relay to adapt to standard 48 VDC, 110 VDC, 125 VDC, and 220 VDC station battery supplies used in substation and industrial power distribution control schemes.\u003c\/p\u003e\n\u003cp\u003eInternal sensing circuits detect faults within milliseconds, activating local alarms and signaling contacts to prevent undetected tripping failures during critical power system faults. Continuous low-level currents are injected through the monitored loop to maintain supervision without initiating breaker trip mechanisms.\u003c\/p\u003e\n\u003ch3\u003ePhysical Architecture and Mounting\u003c\/h3\u003e\n\u003cp\u003eDesigned within the ABB COMBIFLEX modular mounting architecture, the unit allows direct plug-in installation into standard relay mounting racks and protection panels.\u003c\/p\u003e\n\u003cp\u003eThe hardware features a compact enclosure measuring 22.5 x 75 x 110 mm and weighs 0.5 kg, facilitating efficient panel layout and field replacement during station routine maintenance.\u003c\/p\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\u003eSPER1C1-AAJ\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\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e3BDH000338R1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003eCOMBIFLEX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eTrip Circuit Supervision Relay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMonitoring Function\u003c\/td\u003e\n\u003ctd\u003eContinuous trip and control circuit supervision\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e40–265 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (W x H x D)\u003c\/td\u003e\n\u003ctd\u003e22.5 x 75 x 110 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Weight\u003c\/td\u003e\n\u003ctd\u003e0.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What primary function does the SPER1C1-AAJ supervision relay perform? A: It continuously monitors the integrity of trip paths and control circuits in circuit-breaker and disconnector control schemes to detect faults immediately.\u003c\/p\u003e\n\u003cp\u003eQ: What auxiliary DC supply voltage range is compatible with this relay? A: The module operates across a wide voltage range from 40 VDC to 265 VDC.\u003c\/p\u003e\n\u003cp\u003eQ: What mounting system is required to install the SPER1C1-AAJ? A: It is designed for integration into standard ABB COMBIFLEX modular relay rack and panel assemblies.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":43779902767203,"sku":"SPER1C1-AAJ","price":676.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/413_93a8ebef-f85b-4a4c-9b8b-aa548e5a917b.jpg?v=1793857189","url":"https:\/\/www.autocontrolglobal.com\/products\/sper1c1-aaj-abb-combiflex-trip-circuit-supervision-relay","provider":"AutoControl Global","version":"1.0","type":"link"}