{"product_id":"abb-rej525b-415baa-overcurrent-and-earth-fault-relay","title":"Abb Rej525B 415Baa Overcurrent And Earth Fault Relay","description":"\u003cstyle\u003e\ntable {\n  border-collapse: collapse;\n  width: auto;\n}\nth, td {\n  border: 1px solid black;\n  padding: 8px;\n  text-align: left;\n}\nth {\n  background-color: #f2f2f2;\n}\n\u003c\/style\u003e\n\u003ctable height=\"588\" style=\"width: 85%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 40.0651%;\"\u003eAttribute\u003c\/th\u003e\n\u003cth style=\"width: 59.9349%;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40.0651%;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 59.9349%;\"\u003eABB Oy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40.0651%;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 59.9349%;\"\u003eOvercurrent and Earth Fault Relay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40.0651%;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 59.9349%;\"\u003eREJ 525\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40.0651%;\"\u003e\u003cstrong\u003eType\/Order No\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 59.9349%;\"\u003eREJ525B 415BAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40.0651%;\"\u003e\u003cstrong\u003eArticle No\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 59.9349%;\"\u003e1MRS091415\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40.0651%;\"\u003e\u003cstrong\u003eRevision\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 59.9349%;\"\u003eRev: C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40.0651%;\"\u003e\u003cstrong\u003eAuxiliary Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 59.9349%;\"\u003e110–240 VAC \/ 48–220 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40.0651%;\"\u003e\u003cstrong\u003eFrequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 59.9349%;\"\u003e50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40.0651%;\"\u003e\u003cstrong\u003eRated Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 59.9349%;\"\u003eIn = 1\/5A (Io), In = 1\/5A (I)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40.0651%;\"\u003e\u003cstrong\u003eIdentifiers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 59.9349%;\"\u003e1MSC971014A, MR3490021MRS050605A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40.0651%;\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 59.9349%;\"\u003eMade in Finland\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40.0651%;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 15pt; width: 59.9349%;\" width=\"64\" height=\"20\"\u003eFor Part\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40.0651%;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 59.9349%;\"\u003e3.430 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe ABB REJ525B 415BAA Overcurrent and Earth Fault Relay is a protective device developed for medium voltage distribution networks. Designed by ABB Oy – a global leader in electrical equipment and automation – this relay is widely used for detecting overcurrent and earth fault conditions in power systems.\u003c\/p\u003e\n\u003cp\u003eThis specific unit is marked \"Not Working\", and is best suited for spare parts recovery, repair, or industrial reverse engineering. The REJ525 is engineered to provide precision protection, control, and supervision of feeders in utility substations and industrial networks. With auxiliary input ranges of 110–240 VAC and 48–220 VDC, it is adaptable to various system configurations.\u003c\/p\u003e\n\u003cdiv style=\"text-align: right;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/9074\/4727\/files\/abb_rej_525-69984_5_1120x_bccc2a09-5912-4157-8ed3-d56823d6e03f_480x480.jpg?v=1753081278\" alt=\"Abb Rej525B 415Baa Overcurrent And Earth Fault Relay (Not Working)\" style=\"float: right;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: right;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e1. Advanced Protection:\u003c\/strong\u003e Designed for overcurrent and earth fault detection in medium-voltage systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Dual Auxiliary Voltage:\u003c\/strong\u003e Supports both AC (110–240V) and DC (48–220V) supply ranges for universal compatibility.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Flexible Current Ratings:\u003c\/strong\u003e Configurable for current transformers rated at 1A or 5A (I\/Io).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4. Intelligent Monitoring:\u003c\/strong\u003e Supervises feeder conditions, reducing the risk of electrical faults and equipment damage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5. Modular Design:\u003c\/strong\u003e Easy integration into switchgear, control panels, or retrofit applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6. Durable Construction:\u003c\/strong\u003e Housed in a rugged enclosure suitable for industrial environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7. ABB Technology:\u003c\/strong\u003e Manufactured by ABB Oy, known for reliability and innovation in electrical protection devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e8. Repair\/Spare Use:\u003c\/strong\u003e Offered as a non-working unit, ideal for spare parts or refurbishment projects.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e9. International Standards:\u003c\/strong\u003e Complies with standard practices in protection relays for power networks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10. Identifiable Components:\u003c\/strong\u003e Tagged with article and part numbers for easy sourcing and servicing.\u003c\/p\u003e\n\u003ch2\u003eApplications:\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e1. Substations:\u003c\/strong\u003e Used for feeder protection in primary and secondary substations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Industrial Plants:\u003c\/strong\u003e Protects distribution panels in manufacturing and processing facilities.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Power Utilities:\u003c\/strong\u003e Integrated in grid systems to isolate faulty sections during faults.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4. Renewable Energy:\u003c\/strong\u003e Used in wind, solar, and hydro power stations to protect feeders.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5. Mining Operations:\u003c\/strong\u003e Safeguards underground or surface electrical distribution.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6. Oil \u0026amp; Gas:\u003c\/strong\u003e Protects electrical infrastructure on rigs and in refineries.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7. Transport Infrastructure:\u003c\/strong\u003e Employed in rail systems and airports for power control panels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e8. Water Treatment Plants:\u003c\/strong\u003e Monitors and protects essential electrical equipment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e9. Educational Labs:\u003c\/strong\u003e Useful in training centers for relay testing and fault simulations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10. Electronics Reuse:\u003c\/strong\u003e Source of original ABB spare components for reconditioning.\u003c\/p\u003e\n\u003cp\u003eExplore premium, \u003ca href=\"https:\/\/aeliyamarine.com\/products\/micom-p111-3-phase-overcurrent-and-earth-fault-protection-relay-60v-240v\" title=\"high-quality Overcurrent \u0026amp; Earth Fault Protection Relays\"\u003e\u003cstrong\u003ehigh-quality Overcurrent \u0026amp; Earth Fault Protection Relays\u003c\/strong\u003e\u003c\/a\u003e at Aeliya Marine Tech engineered for rapid fault detection, dependable circuit isolation, and optimal safety in industrial power networks.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":47299581116567,"sku":"69984","price":278.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/9074\/4727\/files\/abb_rej_525-69984_1.jpg?v=1739904149","url":"https:\/\/aeliyamarine.com\/products\/abb-rej525b-415baa-overcurrent-and-earth-fault-relay","provider":"Aeliya Marine","version":"1.0","type":"link"}