{"title":"Fast Response Load Controls","description":"","products":[{"product_id":"single-set-point-load-control-with-universal-power-cell-long-response-variable-frequency-drives-pfr-1550v-w-upc-fr","title":"Single Set Point Load Control with Universal Power Cell Long Response (Variable Frequency Drives) PFR-1550V W\/UPC-FR","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThe PFR-1550V Single Set Point with UPC-FR Universal Power Cell delivers a streamlined, high-sensitivity true power protection and monitoring solution for variable frequency drive applications across the widest range of motor types and industrial environments. Combining the fast response overload protection of the PFR-1550 with the full versatility of the UPC-FR Power Cell, this package detects overloads, jams, obstructions, sudden load changes, loss of load, missing tools, and misplaced parts the instant they develop — responding faster than conventional current-based protection and triggering alarms or automatic shutdowns before equipment damage occurs. The included UPC-FR Universal Power Cell brings an ultra-fast 0.050 second response time and adjustable full-scale capacity — sensing true motor power across fixed frequency, variable frequency, single phase, and DC motors without modification, and working seamlessly within the \"V\" Series Load Controls ecosystem for complete VFD-driven motor protection and monitoring. With a single set point configurable for either a high or low trip condition, the PFR-1550V delivers focused, reliable protection without unnecessary complexity — making it the ideal choice for conveyors, mixers, material handling equipment, and other VFD-driven industrial motors where fast, dependable single-threshold protection is the priority.\u003cbr\u003e\u003c\/p\u003e","brand":"Load Controls LLC","offers":[{"title":"Default Title","offer_id":48893823025387,"sku":"PFR-1550V Single Set Point W\/UPC-FR","price":1615.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0815\/4474\/1099\/files\/PFR-1550VSingleSetPointWUPC-FR_cf0cf3c7-0f33-40c0-81c8-4ebcdc459ace.png?v=1782901285"},{"product_id":"single-set-point-load-control-with-ph-3a-power-cell-monitor-pfr-1550v-w-ph3a","title":"Single Set Point Load Control with PH-3A Power Cell Monitor PFR-1550V W\/PH3A","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThe PFR-1550V Single Set Point with PH-3A Power Cell brings together the fast response protection of the PFR-1550 and the ultra-fast true power sensing of the PH-3A — delivering a focused, high-sensitivity load control solution purpose-built for variable frequency drive applications where a single configurable trip point is all that's needed. Using true power sensing rather than current alone, the PFR-1550V detects overloads, jams, obstructions, sudden load changes, loss of load, missing tools, and misplaced parts the instant they develop — responding faster than conventional current-based protection and triggering alarms or automatic shutdowns before equipment damage occurs. The included PH-3A Power Cell Transducer is purpose-built for machine tool and VFD motor monitoring, delivering ultra-fast response to spindle load changes, tool breakage, and overload conditions with no PTs or CTs to install — making it the ideal sensing partner for fast-changing, variable frequency environments. With a single set point configurable for either a high or low trip condition, the PFR-1550V provides straightforward, reliable protection precisely tuned to the application — whether monitoring conveyors, mixers, material handling equipment, CNC spindles, or other VFD-driven industrial motors where fast, dependable protection without complexity is the priority.\u003cbr\u003e\u003c\/p\u003e","brand":"Load Controls LLC","offers":[{"title":"Default Title","offer_id":48893823058155,"sku":"PFR-1550V Single Set Point W\/PH3A","price":1615.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0815\/4474\/1099\/files\/PFR-1550VSingleSetPointWPH3A_66076594-de8c-4e4f-a398-b3c7b95007b4.png?v=1782901218"},{"product_id":"two-set-point-load-control-with-universal-power-cell-long-response-variable-frequency-drives-pfr-1750v-w-upc-fr","title":"Two Set Point Load Control with Universal Power Cell Long Response (Variable Frequency Drives) PFR-1750V W\/UPC-FR","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThe PFR-1750V Two Set Points with UPC-FR Universal Power Cell delivers a complete, high-sensitivity true power protection and monitoring solution for variable frequency drive applications across the widest range of motor types and industrial environments. Combining the fast response overload protection of the PFR-1750 with the full versatility of the UPC-FR Power Cell, this package detects overloads, jams, obstructions, sudden load changes, loss of load, missing tools, and misplaced parts the instant they develop — responding faster than conventional current-based protection and triggering alarms or automatic shutdowns before equipment damage occurs. The included UPC-FR Universal Power Cell brings an ultra-fast 0.050 second response time, adjustable full-scale capacity, and a built-in power supply — sensing true motor power across fixed frequency, variable frequency, single phase, and DC motors without modification. With dual analog outputs — both 4–20mA and 0–10V — and adjustable response time, the UPC-FR feeds accurate, real-time power data directly into existing control systems, SCADA platforms, and data historians for continuous monitoring alongside active protection. Two independent set points configurable for either high or low trip conditions give engineers precise, flexible protection tuned to their specific application — whether monitoring conveyors, mixers, material handling equipment, or other VFD-driven industrial motors where fast, reliable protection is non-negotiable.\u003cbr\u003e\u003c\/p\u003e","brand":"Load Controls LLC","offers":[{"title":"Default Title","offer_id":48893823123691,"sku":"PFR-1750V Two Set Points W\/UPC-FR","price":1750.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0815\/4474\/1099\/files\/PFR-1750VTwoSetPointsWUPC-FR_f782fffc-5bf3-4fc4-bfd5-44c5bd3cb480.png?v=1782901393"},{"product_id":"two-set-point-load-control-with-ph-3a-power-cell-monitor-pfr-1750v-w-ph3a","title":"Two Set Point Load Control with PH-3A Power Cell Monitor PFR-1750V W\/PH3A","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThe PFR-1750V Two Set Points with PH-3A Power Cell brings together the fast response protection of the PFR-1750 and the ultra-fast true power sensing of the PH-3A — delivering a complete, high-sensitivity load control solution purpose-built for variable frequency drive applications. Using true power sensing rather than current alone, the PFR-1750V detects overloads, jams, obstructions, sudden load changes, loss of load, missing tools, and misplaced parts the instant they develop — responding faster than conventional current-based protection and triggering alarms or automatic shutdowns before equipment damage occurs. The included PH-3A Power Cell Transducer is purpose-built for machine tool and VFD motor monitoring, delivering ultra-fast response to spindle load changes, tool breakage, and overload conditions with no PTs or CTs to install — making it the ideal sensing partner for fast-changing, variable frequency environments. With two independent set points configurable for either high or low trip conditions, the PFR-1750V gives engineers the flexibility to tailor protection precisely to their application — whether monitoring conveyors, mixers, material handling equipment, CNC spindles, or other VFD-driven industrial motors where fast, reliable protection is non-negotiable.\u003cbr\u003e\u003c\/p\u003e","brand":"Load Controls LLC","offers":[{"title":"Default Title","offer_id":48893823189227,"sku":"PFR-1750V Two Set Points W\/PH3A","price":1750.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0815\/4474\/1099\/files\/PFR-1750VTwoSetPointsWPH3A_557be177-e4c6-4f44-8e33-d78a14b41f16.png?v=1782901336"},{"product_id":"rate-of-change-load-control-roc-50","title":"Rate of Change Load Control ROC-50","description":"\u003cp\u003eThe ROC-50 Rate of Change Load Control monitors true motor power by sensing volts x amps x power factor — delivering far greater sensitivity than current-based monitoring alone. With two independent adjustable set points, the ROC-50 provides dual-layer protection: the Rate set point limits sudden increases in load regardless of total load level, while the Max set point limits total load — catching both rapid load spikes and sustained overloads before they cause equipment damage. Featuring a built-in digital load display, 4–20mA analog output, and three reset options, the ROC-50 is a complete, flexible motor protection solution for motors up to 50HP directly, and up to 500HP with an external current transformer.\u003c\/p\u003e","brand":"Load Controls LLC","offers":[{"title":"Default Title","offer_id":48893823320299,"sku":"ROC-50 Rate of Change","price":975.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0815\/4474\/1099\/files\/ROC-50_f05bf112-348e-4b9a-9327-0162662cc45b.png?v=1782515780"},{"product_id":"rate-of-change-load-control-with-fast-response-universal-power-cell-variable-frequency-drives-roc-50v-w-upc-fr","title":"Rate of Change Load Control with Fast Response Universal Power Cell (Variable Frequency Drives) ROC-50V W\/ UPC-FR","description":"\u003cp\u003eThe ROC-50V Rate of Change Load Control with UPC-FR Universal Power Cell extends the proven dual-layer protection of the ROC-50 to variable frequency drive applications — combining true power rate-of-change monitoring with the ultra-fast sensing capability of the UPC-FR for complete, high-sensitivity motor protection across VFD-driven environments. Monitoring true motor power by sensing volts x amps x power factor rather than current alone, the ROC-50V delivers far greater sensitivity than conventional protection — tripping when it detects a significant change in average motor load, catching developing fault conditions that fixed-threshold controls miss entirely. The Rate set point limits sudden increases in load regardless of total load level, while the Max set point limits total load — providing dual-layer protection against both rapid load spikes and sustained overloads before equipment damage occurs. The included UPC-FR Universal Power Cell brings an ultra-fast 0.050 second response time, adjustable full-scale capacity, and a built-in power supply — sensing true motor power across fixed frequency, variable frequency, single phase, and DC motors without modification, with dual analog outputs of both 4–20mA and 0–10V for seamless integration with existing control systems, SCADA platforms, and data historians. With a built-in digital load display and three reset options — manual, remote, and automatic — the ROC-50V delivers comprehensive, flexible rate-of-change protection for VFD-driven motors across conveyors, mixers, pumps, and other industrial applications where rapid load change detection is critical.\u003c\/p\u003e","brand":"Load Controls LLC","offers":[{"title":"Default Title","offer_id":48893823353067,"sku":"ROC-50V Rate of Change W\/ UPC-FR","price":1750.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0815\/4474\/1099\/files\/ROC-50VWUPC-FR.png?v=1782901704"},{"product_id":"cr-150-fast-response-current-sensing-load-control","title":"CR-150 Fast Response Current Sensing Load Control","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb id=\"docs-internal-guid-c1c4289a-7fff-6f9f-a54f-0dd537b21246\"\u003e\u003cspan\u003eThe CR-150 Fast Response Current Sensing Load Control provides dependable motor load protection for applications where fast, reliable current-based detection is the priority. With an adjustable set point and both relay and analog outputs as standard, the CR-150 integrates easily into existing control systems and responds rapidly to overloads, jams, and loss-of-load conditions, stopping damage before it escalates. A straightforward, cost-effective solution for industrial motor protection without complexity.\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e","brand":"Load Controls LLC","offers":[{"title":"Default Title","offer_id":48893823385835,"sku":"CR-150","price":730.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0815\/4474\/1099\/files\/CR-150_4e77eb13-1622-4fad-8e09-68130cbfbc5d.png?v=1782515758"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0815\/4474\/1099\/collections\/Accessories_1_3245db53-0a3d-4b2e-9bdb-bf8112a358ba.png?v=1782744347","url":"https:\/\/loadcontrols.com\/collections\/fast-response-load-control.oembed","provider":"Load Controls ","version":"1.0","type":"link"}