{"title":"GEC Durham Industries","description":"\u003cp\u003eIndustrial surplus GEC Durham Industries parts and equipment, in stock at MRO Exchange.\u003c\/p\u003e","products":[{"product_id":"gec-durham-industries-current-transformer-105kp-type-ab21-600-vac-02249","title":"GEC Durham Industries 105KP \/ AB21 Current Transformer 600V AC Inspected Surplus - Appears Unused","description":"\u003cp\u003eA GEC Durham Industries Astra Type AB21 instrument current transformer with a 200:5A ratio, catalog number 105KP. The unit carries serial number 2521A7A and is rated for 60 Hertz operation. Original certified test record documentation from GEC Durham Industries (Dartmouth, MA) accompanies the unit, showing recorded ratio correction factor and phase angle data at 10 percent and 100 percent burden loading. Tested at 60 Hertz per manufacturer final inspection records.\u003c\/p\u003e\n\n\u003cp\u003eThe Astra AB series is a window type current transformer used in switchgear, metering panels, and protective relaying applications. The 200:5A turns ratio converts a primary current of up to 200 amperes into a proportional 5 ampere secondary output suitable for connection to ammeters, watt hour meters, power meters, and protective relays. The window construction allows the primary conductor to pass through the transformer aperture, eliminating the need to interrupt the primary circuit during installation.\u003c\/p\u003e\n\n\u003cp\u003eStock number 9200 4481 and purchase order number 093914 are noted on the original packaging. The unit appears in original packaging with mounting hardware and bracket visible. Constructed for 600 VAC class service typical of the Astra AB type series.\u003c\/p\u003e\n\n\u003cp\u003eGEC Durham Industries instrument transformers are commonly specified for utility metering, industrial power distribution, marine and shipboard switchgear, and OEM panel building applications. Cross reference to the current GEC Durham catalog may be applicable for replacement sourcing, as the Astra brand has been continuously produced under GEC Durham Industries.\u003c\/p\u003e\n\n\u003cp\u003eStock # 0526-02249\u003c\/p\u003e","brand":"GEC Durham Industries","offers":[{"title":"Default Title","offer_id":49725436690672,"sku":"m02249","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/6648\/7280\/files\/1E0BD684-3201-40BF-851A-910C69B256FD.jpg?v=1778769187"},{"product_id":"gec-durham-industries-instrument-current-transformer-105kp-02255","title":"GEC Durham Industries 105KP Instrument Current Transformer","description":"\u003cp\u003eThe GEC Durham Industries Catalog No. 105KP is a Type AB instrument current transformer with a 200:5A ratio, manufactured in New Bedford, MA. This unit carries serial number 2612181 and is rated for 60 Hz operation with a nominal system voltage of 0.6 kV (600 V class). Accuracy class is 0.3 at B 0.5 burden, with a rating factor of RF 4.0 at 30 degrees C ambient. The basic impulse insulation level (BIL) is 10 kV. Construction features a window\/bar style epoxy resin cast body in green finish, with copper bus bar primary terminals mounted to nickel plated steel brackets on either side of the case. The secondary terminal compartment is fitted with a clear sealable cover and a retained shorting device, with a thumbscrew style sealing fastener on top. A foot mounting bracket is integrated at the base of the unit for vertical or horizontal installation. Type AB transformers from the GEC Astra product line are intended for revenue metering, switchboard metering, and protective relaying applications in commercial and industrial low voltage distribution systems. The unit conforms to ANSI, NEMA, and EEI standards for instrument current transformers. The original packaging label identifies Type AB21 with stock number 9200,4481 and P.O. number 099225. Part number markings are clearly legible on the stainless steel nameplate. Suitable for use in metering cabinets, switchgear assemblies, and panelboards requiring current measurement at the 200:5A turns ratio.\u003c\/p\u003e\n\n\u003cp\u003eStock # 0526-02255\u003c\/p\u003e","brand":"GEC Durham Industries","offers":[{"title":"Default Title","offer_id":49725507797232,"sku":"m02255","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/6648\/7280\/files\/212CF19B-FA44-4159-A352-C19CB776D542.png?v=1784971073"},{"product_id":"gec-durham-industries-instrument-current-transformer-105kp-600v-02279","title":"GEC Durham Industries 105KP Instrument Current Transformer 600V","description":"\u003cp\u003eThe GEC Durham Industries 105KP is a Type AB instrument current transformer with a 200:5A turns ratio, manufactured in New Bedford, MA. Designed for use in revenue grade metering and protective relaying applications, this unit steps down primary current to a 5 ampere secondary suitable for connection to standard ammeters, watt hour meters, and protective relays. The nameplate identifies an accuracy class of 0.3 at B 0.5 burden, a rating factor of 4.0 at 30 degrees C ambient, a 60 Hz frequency rating, a system voltage class of 0.6 kV, and a basic insulation level of 10 kV BIL. Serial number 2521466 is stamped on the nameplate. The transformer is housed in an epoxy encapsulated rectangular case with integrated mounting brackets and a removable clear polycarbonate secondary terminal cover that protects the secondary terminal stud connections. A through window construction accommodates a primary bus bar or cable, and the included mounting hardware allows for panel, rack, or pad mount installation in switchgear, metering cabinets, and motor control centers. Suitable for utility metering, commercial submetering, and industrial power monitoring on 600 volt class systems. Part number 105KP, Type AB, ratio 200:5A.\u003c\/p\u003e\n\n\u003cp\u003eStock # 0526-02279\u003c\/p\u003e","brand":"GEC Durham Industries","offers":[{"title":"Default Title","offer_id":49726027366640,"sku":"m02279","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/6648\/7280\/files\/38EC0399-C256-4440-960F-F23D0C4A88D0.png?v=1784968085"}],"url":"https:\/\/mroexchange.com\/collections\/gec-durham-industries.oembed","provider":"MRO Exchange","version":"1.0","type":"link"}