Cable Assembly
We build TC-ER certified power cable assemblies for tray-to-machine runs where the buyer needs verified cable marking, controlled termination, and 100% electrical test records before the kit reaches the plant floor.
Application Context
TC-ER power cable assemblies are specified when an industrial buyer needs tray cable behavior, not a generic multi-conductor cord. A cable marked TC-ER is tied to tray-cable and exposed-run installation language, while the finished assembly still depends on correct conductor sizing, gland compression, shield handling, strain relief, and test documentation. Our role is to convert that marked cable into a repeatable assembly that arrives cut to length, terminated, labeled, packed by route, and electrically verified.
This page is intentionally narrower than our high voltage cable assembly and battery cable assembly pages. TC-ER work is best for industrial machinery, VFD leads, pump skids, control cabinets, and factory automation where tray routing and plant installation rules drive the cable choice. For code background, buyers can review public summaries of the National Electrical Code, cable tray systems, and power cable construction.
If the drawing is still early, our power cable assembly guide explains the RFQ details that usually affect price and first-article timing: conductor size, termination style, jacket exposure, bend radius, labeling, and test records.
Applications
The useful work happens before crimping starts: cable marking, installation context, shielding, jacket exposure, and termination style are checked against the drawing.
We review the cable print, jacket marking, conductor count, voltage class, and supplier certificate before production so the assembly matches the tray-cable requirement on the RFQ.
Industrial power cable assemblies can combine motor power, control, brake, and auxiliary conductors in one jacket when the installation calls for tray-rated cable between equipment.
Foil, braid, and drain-wire termination plans reduce electrical noise in drives, pumps, conveyors, and machine tools where tray routing passes near signal wiring.
We match PVC, CPE, PUR, or XLPE constructions to the stated exposure instead of treating every TC-ER cable as interchangeable commodity wire.
Each finished cable can be cut, stripped, labeled, dressed, and packed to the exact tray-to-machine route length to reduce field trimming and rework.
Continuity, polarity, insulation resistance, hi-pot, shield continuity, and visual marking checks are documented before shipment for production traceability.
Engineering Challenges
TC-ER legend, UL 1277 marking, voltage class and supplier certificate are checked before production, because a wrong cable legend can create a field-installation problem even when the crimp quality is good.
Drain-wire, braid and foil termination planned for VFD and servo drives so tray routing that passes near signal wiring does not create nuisance faults at the panel entry.
PVC, CPE, PUR or XLPE construction matched to the stated oil, sunlight and flame exposure instead of treating every TC-ER cable as interchangeable commodity wire.
Bend radius, cable support and authority-having-jurisdiction notes reviewed. We build to the drawing, mark and test the cable, and flag mismatches rather than approving the field installation.
Technical Capabilities
TC-ER cable is not one material. The cable family can vary by voltage, conductor insulation, jacket, oil rating, sunlight rating, shield style, and approval stack. We verify those details before quoting because a wrong cable legend can create a field-installation problem even when the crimp quality is good.
Manufacturing Process
Quality & Testing
Continuity, polarity, insulation resistance, hi-pot, shield continuity, and visual marking checks are documented before shipment, with serialized test reports and cable lot references so the installer receives a ready-to-fit, traceable kit.
Why WHP
Verified tray cable, controlled termination, and documented testing for industrial buyers.
UL 1277 marking, TC-ER jacket legend, voltage class and supplier lot traceability are reviewed before production so the assembly matches the tray-cable requirement on the RFQ.
Cut length, stripped ends, connectorized drops, labels, glands, and kitting by machine zone move field labor into a controlled factory process instead of trimming bulk cable on the plant floor.
Continuity, polarity, insulation resistance, hi-pot when specified, and shield continuity are documented with serialized test reports for production traceability.
We build to the drawing, mark and test the cable, and flag mismatches. We do not provide installation approval for a building, plant, or jurisdiction, and we separate TC-ER work from residential and commodity bulk-cable supply.
We hold ISO 9001 and build TC-ER power cable assemblies to IPC/WHMA-A-620 workmanship, verifying UL 1277 tray-cable marking against the customer drawing.
FAQ
OEM Program Entry
Send your drawing, cable legend requirement, route lengths, connector part numbers, and expected release quantity. We will review certification fit before quoting production.
Related Capabilities
Common Applications
TC-ER certified power cable assemblies are most useful where field crews would otherwise spend time cutting bulk tray cable, stripping conductors, adding lugs, applying labels, and rechecking polarity at the machine. Prebuilt assemblies move that labor into a controlled factory process.
Best Fit & Scope
This service fits OEMs, machine builders, panel shops, and industrial integrators that already know the cable must be tray-rated or TC-ER marked. We do not provide installation approval for a building, plant, or jurisdiction; the electrical contractor, engineer of record, or authority having jurisdiction must approve the final installation method.
Machine builders, panel shops, VFD systems, pump skids, and factory automation kits.
Drawing, cable marking, route length, connector part numbers, test requirements, and quantity.
Certified tray cable can raise material cost but reduces field conduit and rework risk where allowed.
Cable lot reference, inspection notes, electrical test record, and packed-by-route labels.
“For TC-ER assemblies, the drawing should tell us both the electrical load and the installation assumption. A 600V VFD cable, an oil-resistant machine cable, and a tray-to-panel control whip can look similar on a BOM but fail for different reasons in the plant.”
Hommer Zhao, Engineering Director
Production Workflow
We check whether the RFQ calls for Type TC, TC-ER, MTW, WTTC, or another marking, then confirm the required voltage, exposure, conductor count, and authority-having-jurisdiction notes.
Engineering compares approved cable families, connector entries, glands, ferrules, lugs, bend radius, and shield termination before the first sample is released.
Prototype TC-ER power cable assemblies are cut, stripped, labeled, and terminated for fit checks. A typical sample release is 7-10 working days when cable stock is available.
Assemblies are checked for continuity, polarity, insulation resistance, crimp pull force, label accuracy, shield continuity, and drawing conformance before volume approval.
Production lots are packed by machine, panel, or route number with test records and cable lot references so the installer receives a ready-to-fit kit.