{"product_id":"lgb3b090b-siemens-90a-3pole-600v-bolt-on-mccb","title":"Siemens - LGB3B090B 90A 3-Pole 600V Bolt-On Molded Case Circuit Breaker","description":"\u003cp\u003eThe \u003cstrong\u003eSiemens LGB3B090B\u003c\/strong\u003e is a 3-pole, 90-amp thermal magnetic molded case circuit breaker (MCCB) rated for 600VAC with bolt-on mounting. Engineered for industrial and commercial three-phase power distribution, this LGB-frame breaker delivers reliable overload and short-circuit protection. Its bolt-on design provides a secure, vibration-resistant connection in compatible Siemens panelboards and switchboards.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eLGB3B090B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmperage Rating\u003c\/td\u003e\n\u003ctd\u003e90A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Rating\u003c\/td\u003e\n\u003ctd\u003e600VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Poles\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrip Type\u003c\/td\u003e\n\u003ctd\u003eThermal Magnetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Type\u003c\/td\u003e\n\u003ctd\u003eBolt-On\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterrupting Rating\u003c\/td\u003e\n\u003ctd\u003e65kA @ 240V \/ 25kA @ 600V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eUL 489 Listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame Series\u003c\/td\u003e\n\u003ctd\u003eLGB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBolt-on design for secure, vibration-resistant mounting in Siemens-compatible panelboards\u003c\/li\u003e\n\u003cli\u003eThermal magnetic trip for reliable time-delay overload and instantaneous fault protection\u003c\/li\u003e\n\u003cli\u003e90-amp, 600V rating for industrial and commercial branch and feeder circuits\u003c\/li\u003e\n\u003cli\u003e3-pole design for balanced three-phase 600V protection\u003c\/li\u003e\n\u003cli\u003eUL 489 Listed, NEC compliant\u003c\/li\u003e\n\u003cli\u003eField-installable accessories available for enhanced functionality\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e90A three-phase branch and feeder circuit protection in 600V industrial panels\u003c\/li\u003e\n\u003cli\u003eMotor branch circuit and feeder protection in switchboards\u003c\/li\u003e\n\u003cli\u003eCommercial and industrial distribution panels up to 600V\u003c\/li\u003e\n\u003cli\u003eHVAC and process equipment feeders at 600V\u003c\/li\u003e\n\u003cli\u003eReplacement breaker in Siemens LGB-frame compatible panelboards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWhat is the Siemens LGB3B090B?\u003c\/h3\u003e\u003cp\u003eThe Siemens LGB3B090B is a 90-amp, 3-pole, 600V thermal magnetic bolt-on MCCB used for branch circuit and feeder protection in three-phase industrial and commercial 600V electrical distribution systems.\u003c\/p\u003e\u003ch3\u003eWhat does the B suffix mean in LGB3B090B?\u003c\/h3\u003e\u003cp\u003eThe B suffix in Siemens LGB-series part numbers typically indicates a specific terminal or accessory configuration. Consult Siemens product documentation for the exact meaning and available options for this model.\u003c\/p\u003e\u003ch3\u003eIs the LGB3B090B in stock?\u003c\/h3\u003e\u003cp\u003eYes. Alpha Brokers \u0026amp; Controls stocks the Siemens LGB3B090B. Contact us for current availability and fast shipping.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"New","offer_id":48395584045304,"sku":"LGB3B090B-N","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/1209\/3176\/files\/8OqVHdzS-LGB3B090B-All-New-1_4d5b4ac0-f708-4b34-a893-961edbd727ce.jpg?v=1778784971","url":"https:\/\/alphabreakersandcontrols.com\/products\/lgb3b090b-siemens-90a-3pole-600v-bolt-on-mccb","provider":"Alpha Breakers \u0026 Controls","version":"1.0","type":"link"}