{"product_id":"new-bonfiglioli-type-sb-710210014-u-170-440v-1a-overexcitation-rectifier","title":"Bonfiglioli Bonf SB 710210014 Rectifier, 170-440V 1A Overexcitation","description":"\u003cdiv class=\"product-description-container\" style=\"font-family: 'Segoe UI', Arial, sans-serif; line-height: 1.6; color: #333;\"\u003e\n\n    \u003cp\u003eThe \u003cstrong\u003eBonfiglioli Bonf SB 710210014\u003c\/strong\u003e is a highly specialized \u003cstrong\u003eoverexcitation brake rectifier\u003c\/strong\u003e designed for rapid and precise control of electromagnetic motor brakes. Operating efficiently across a wide input range of \u003cstrong\u003e170-440V AC\u003c\/strong\u003e with a \u003cstrong\u003e1A output\u003c\/strong\u003e, this robust component ensures quick brake release and reliable holding power while minimizing coil heat. Whether you are sourcing an \u003cstrong\u003eSB 710210014 replacement\u003c\/strong\u003e for heavy-duty lifting equipment or looking for an \u003cstrong\u003eequivalent to Bonfiglioli industrial rectifiers\u003c\/strong\u003e, this unit guarantees optimal dynamic performance in high-cycle automation systems.\u003c\/p\u003e\n\n    \u003chr style=\"border: 0; height: 1px; background: #eee; margin: 20px 0;\"\u003e\n\n    \u003ch3 style=\"color: #0056b3; border-left: 4px solid #0056b3; padding-left: 12px; margin-top: 25px;\"\u003eTechnical Specifications\u003c\/h3\u003e\n    \u003cdiv style=\"overflow-x: auto;\"\u003e\n        \u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px; border: 1px solid #e1e1e1;\"\u003e\n            \u003cthead\u003e\n                \u003ctr style=\"background-color: #f4f7f9;\"\u003e\n                    \u003cth style=\"padding: 12px; border: 1px solid #e1e1e1; text-align: left;\"\u003eParameter\u003c\/th\u003e\n                    \u003cth style=\"padding: 12px; border: 1px solid #e1e1e1; text-align: left;\"\u003eDetails\u003c\/th\u003e\n                \u003c\/tr\u003e\n            \u003c\/thead\u003e\n            \u003ctbody\u003e\n                \u003ctr\u003e\n                    \u003ctd style=\"padding: 10px; border: 1px solid #e1e1e1; font-weight: bold;\"\u003eManufacturer \/ Model\u003c\/td\u003e\n                    \u003ctd style=\"padding: 10px; border: 1px solid #e1e1e1;\"\u003eBonfiglioli \/ Bonf SB\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr style=\"background-color: #fafafa;\"\u003e\n                    \u003ctd style=\"padding: 10px; border: 1px solid #e1e1e1; font-weight: bold;\"\u003ePart Number\u003c\/td\u003e\n                    \u003ctd style=\"padding: 10px; border: 1px solid #e1e1e1;\"\u003e710210014\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd style=\"padding: 10px; border: 1px solid #e1e1e1; font-weight: bold;\"\u003eInput Voltage Range\u003c\/td\u003e\n                    \u003ctd style=\"padding: 10px; border: 1px solid #e1e1e1;\"\u003e170V - 440V AC (Wide Range)\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr style=\"background-color: #fafafa;\"\u003e\n                    \u003ctd style=\"padding: 10px; border: 1px solid #e1e1e1; font-weight: bold;\"\u003eNominal Output Current\u003c\/td\u003e\n                    \u003ctd style=\"padding: 10px; border: 1px solid #e1e1e1;\"\u003e1.0 A\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd style=\"padding: 10px; border: 1px solid #e1e1e1; font-weight: bold;\"\u003eRectifier Type\u003c\/td\u003e\n                    \u003ctd style=\"padding: 10px; border: 1px solid #e1e1e1;\"\u003eOverexcitation (Fast Engagement \/ Holding)\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr style=\"background-color: #fafafa;\"\u003e\n                    \u003ctd style=\"padding: 10px; border: 1px solid #e1e1e1; font-weight: bold;\"\u003eApplication\u003c\/td\u003e\n                    \u003ctd style=\"padding: 10px; border: 1px solid #e1e1e1;\"\u003eCranes, Hoists, Brakemotors, Conveyors\u003c\/td\u003e\n                \u003c\/tr\u003e\n            \u003c\/tbody\u003e\n        \u003c\/table\u003e\n    \u003c\/div\u003e\n\n    \u003ch3 style=\"color: #0056b3; border-left: 4px solid #0056b3; padding-left: 12px; margin-top: 30px;\"\u003eAdvanced Overexcitation Technology\u003c\/h3\u003e\n    \u003cp\u003eThe \u003cstrong\u003eSB 710210014 rectifier\u003c\/strong\u003e utilizes an overexcitation mechanism critical for high-inertia applications. Upon startup, it delivers a high-voltage pulse to instantly overcome the brake spring tension, ensuring zero mechanical drag. Milliseconds later, it automatically drops to a lower holding voltage, significantly reducing thermal stress on the brake coil. Encased in high-grade epoxy resin, this \u003cstrong\u003eindustrial electrical part\u003c\/strong\u003e is highly resistant to vibration and moisture, making it an essential \u003cstrong\u003erepair part\u003c\/strong\u003e to prevent motor stalling and brake pad wear in demanding operational environments.\u003c\/p\u003e\n\n    \u003ch3 style=\"color: #0056b3; border-left: 4px solid #0056b3; padding-left: 12px; margin-top: 30px;\"\u003eSB 710210014 Troubleshooting FAQ\u003c\/h3\u003e\n    \u003cul style=\"padding-left: 20px;\"\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMotor hums but brake won't release?\u003c\/strong\u003e Check the AC input terminals on the \u003cstrong\u003eSB 710210014\u003c\/strong\u003e. If the 170-440V AC supply is present but there is zero DC output to the brake coil, the internal diodes of the rectifier have likely blown due to a power surge. The unit must be replaced.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBrake coil running unusually hot?\u003c\/strong\u003e This is a common symptom of a failed overexcitation circuit. If the \u003cstrong\u003eBonfiglioli rectifier\u003c\/strong\u003e fails to drop from the initial \"pull-in\" high voltage down to the lower \"holding\" voltage, the continuous high current will severely overheat the brake coil. Confirm the DC output voltage matches your motor's holding specifications.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePhysical damage or cracking?\u003c\/strong\u003e Extreme thermal cycling can cause the epoxy potting compound of the \u003cstrong\u003e710210014 rectifier\u003c\/strong\u003e to crack, exposing internal components to industrial dust and moisture. Always ensure the rectifier is securely mounted in a well-ventilated terminal box. Refer to the \u003cstrong\u003eBonfiglioli wiring diagram\u003c\/strong\u003e for correct AC\/DC terminal connections to prevent immediate short circuits upon installation.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n\u003c\/div\u003e","brand":"BONFIGLIOLI","offers":[{"title":"Default Title","offer_id":44474547536057,"sku":"233715039800","price":139.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/8476\/7929\/files\/s-l1600_c87cab91-f745-403d-9a84-5b2065f1c38c.jpg?v=1726716514","url":"https:\/\/koeed.com\/de\/products\/new-bonfiglioli-type-sb-710210014-u-170-440v-1a-overexcitation-rectifier","provider":"KOEED","version":"1.0","type":"link"}