{"product_id":"128718-01-bently-nevada-3500-25-keyphasor-external-termination-block","title":"128718-01 Bently Nevada 3500\/25 Keyphasor External Termination Block","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe 128718-01 is a high-precision interface component specifically engineered for use with the Bently Nevada 3500\/25 Enhanced Keyphasor Module. As a dedicated External Termination Block (ETB), it functions as the central landing point for field wiring from Keyphasor transducers before signals are routed into the 3500 monitoring rack. This hardware is essential for systems configured with external termination I\/O modules, providing a robust and accessible connection point that protects signal integrity. By isolating field connections from the rack's internal backplane, the 128718-01 simplifies troubleshooting and maintenance while ensuring that critical phase and speed pulses are transmitted without interference.\u003c\/p\u003e\n\u003ch3\u003eEssential Hardware Parameters\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSystem Series:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e3500\/25 Enhanced Keyphasor System\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOrder Number:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e128718-01\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eConnection Style:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEuro-style screw terminals for secure field wiring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eApplication Compatibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDesigned for use with 3500\/25 External Termination I\/O modules\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePhysical Weight:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.34 kg (0.75 lbs)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUnit Dimensions:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e25.6 cm x 12.0 cm x 2.4 cm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHousing Material:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIndustrial-grade high-durability polymer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTerminal Density:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSupports multiple Keyphasor input channels and common grounds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIndustrial Application Environments\u003c\/h3\u003e\n\u003cp\u003eThe 128718-01 is a staple in complex machinery protection architectures, particularly where high-speed rotating equipment requires precise timing references. Its primary applications include:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTurbine Phase Reference:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProviding the landing point for Once-Per-Turn signals used in vibration diagnostics for steam and gas turbines.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Density Control Cabinets:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFacilitating organized cable management in large-scale plants where multiple 3500 racks are interconnected.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRemote Signal Testing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eServing as a convenient test point for technicians to verify transducer pulse output without opening the main monitoring rack.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCritical Asset Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEnsuring secure electrical contact for speed signals in oil and gas compression trains and power generation facilities.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the 128718-01 required for every 3500\/25 installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: No, it is only required if your 3500\/25 system is configured with an \"External Termination\" I\/O module. If your system uses \"Internal Terminations,\" the field wires connect directly to the back of the rack.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use this termination block with 3500\/42M Proximitor modules?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: While specifically designed for Keyphasor signals within the 3500\/25 framework, Bently Nevada often uses similar Euro-style blocks across the 3500 series. However, you should always verify the specific signal pinouts to ensure compatibility with non-Keyphasor monitors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What type of cable connects this block to the 3500 rack?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The 128718-01 typically connects to the I\/O module on the back of the 3500 rack via a multi-conductor shielded cable with specialized D-sub or circular connectors, depending on your specific I\/O module version.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does this block handle sensor shielding?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The Euro-style terminals include designated shield terminals, allowing for the proper termination of cable drains to prevent electromagnetic interference from distorting the Keyphasor pulse.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this component in stock for immediate shipment?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes, we maintain the 128718-01 in brand-new condition in our inventory, ready for rapid dispatch via FedEx or UPS with a 12-month warranty.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45840789569709,"sku":"128718-01","price":189.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/128718-01-2.jpg?v=1774237178","url":"https:\/\/www.maxwellplc.com\/products\/128718-01-bently-nevada-3500-25-keyphasor-external-termination-block","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}