{"product_id":"str58u-lsig-800a","title":"STR58U-LSIG-800A - Merlin Gerin Masterpact STR 800A 3-Pole Circuit Breaker Trip Unit","description":" \t\t\t\t\t\t\t\t\t\t\u003ch2\u003eSTR58U-LSIG-800A\u003c\/h2\u003e                                         \u003cbr\u003e \t\t\t\t\t\t\t\t\t\t\u003cb\u003eSTR58U-LSIG-800A\u003c\/b\u003e is a 3-pole circuit breaker trip unit designed for the Merlin Gerin Masterpact series, providing reliable protection for electrical systems. This unit features LSIG protection (Long-time, Short-time, Instantaneous, Ground-fault) and is rated for 800A applications. The STR58U trip unit offers advanced protection functions, including adjustable trip settings, built-in ammeter, and selectable phase current monitoring. It is compatible with Masterpact circuit breakers and supports zone-selective interlocking for enhanced coordination in complex power distribution networks. \u003cul\u003e \u003cli\u003eManufacturer: Merlin Gerin\u003c\/li\u003e \u003cli\u003eSeries: Masterpact\u003c\/li\u003e \u003cli\u003eType: STR58U\u003c\/li\u003e \u003cli\u003eAmperage: 800A\u003c\/li\u003e \u003cli\u003eVoltage: 600V\u003c\/li\u003e \u003cli\u003ePoles: 3\u003c\/li\u003e \u003cli\u003eProtection: LSIG (Long-time, Short-time, Instantaneous, Ground-fault)\u003c\/li\u003e \u003cli\u003eMounting Type: Plug-in\u003c\/li\u003e \u003cli\u003eInterrupt Rating: Up to 100 kA\u003c\/li\u003e \u003cli\u003eControl Unit Features: Built-in ammeter, zone-selective interlocking\u003c\/li\u003e \u003cli\u003eStandards: UL 489\u003c\/li\u003e \u003cli\u003eApplication: Power distribution, industrial circuits\u003c\/li\u003e \u003c\/ul\u003e At \u003cb\u003eEssential Parts\u003c\/b\u003e, we offer \u003cb\u003efast shipping\u003c\/b\u003e, \u003cb\u003elowest price\u003c\/b\u003e, and \u003cb\u003eexpert support\u003c\/b\u003e to help you get the right product every time. \t\t\t\t\t\t\t\t\t\t\u003cbr\u003e                                          \t\t\t\t\t\t\t\t\t\t\u003ch3\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/h3\u003e \t\t\t\t\t\t\t\t\t\t\u003cul\u003e \t\t\t\t\t\t\t\t\t\t\t\u003cli\u003ePart Number: STR58U-LSIG-800A\u003c\/li\u003e                                             \u003cli\u003eManufacturer : Merlin Gerin\u003c\/li\u003e\n\u003cli\u003eBrand : Merlin Gerin\u003c\/li\u003e\n\u003cli\u003eCategory : Circuit Breaker\u003c\/li\u003e\n\u003cli\u003eItem Subcategory : Trip Units \u0026amp; Programmers\u003c\/li\u003e\n\u003cli\u003eFamily : Masterpact\u003c\/li\u003e\n\u003cli\u003eType : STR\u003c\/li\u003e\n\u003cli\u003eVoltage : 600\u003c\/li\u003e\n\u003cli\u003ePoles : 3\u003c\/li\u003e\n\u003cli\u003eFunctions : LSIG - Long-Time, Short-Time, Instantaneous and Ground Fault\u003c\/li\u003e\n\u003cli\u003eAmperage Maximum : 800\u003c\/li\u003e\n\u003cli\u003eAmperage Minimum : 800\u003c\/li\u003e\n\u003cli\u003eProtection : Solid State\u003c\/li\u003e\n\u003cli\u003eCompatible Frames : M,MP\u003c\/li\u003e \t\t\t\t\t\t\t\t\t\t\u003c\/ul\u003e                                         \u003cbr\u003e                                         \u003ch3\u003e\u003cb\u003eProduct Data\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eWeight : 10 \u003c\/li\u003e\u003c\/ul\u003e                                         \u003cbr\u003e                                          ","brand":"Merlin Gerin","offers":[{"title":"Re-Certified","offer_id":42692314005663,"sku":"STR58U-LSIG-800A-ReCert","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/essentialparts.com\/products\/str58u-lsig-800a","provider":"Essential Electric Supply","version":"1.0","type":"link"}