Panduit CD-920C-500 Crimp Die for 500 kcmil CTAPR Copper Compression Connectors
Overview
The Panduit CD-920C-500 is a Pan-Lug™ series crimp die engineered specifically for crimping 500 kcmil copper compression grounding connectors in the CTAPR series. If you're terminating large-gauge copper conductors on grounding assemblies, electrical enclosures, or high-current distribution panels, this is a purpose-built die — not a universal fit. Using the correct die for the connector series eliminates cold crimps, ensures full conductor fill, and keeps your terminations within code-compliant pull-out force thresholds. The CD-920C-500 (often searched as CD 920C 500) is sold as a single die, intended for use with compatible Panduit Pan-Lug™ crimping tools that accept indexed die sets.
Key Features
- Circumferential Crimp Geometry: The die produces a full 360° crimp profile around the connector barrel — not a hexagonal indent or partial-contact crimp. This matters on 500 kcmil conductors where incomplete contact area directly increases joint resistance and thermal rise under load. Circumferential crimps also distribute mechanical stress evenly, reducing the risk of conductor strand breakage at the barrel edge.
- Embossed Die Index Number: The die index number is physically embossed into the die body, not stamped on a label that wears off. On a busy termination bench where multiple dies are staged, this prevents mis-selection — a mistake that produces a visually acceptable but mechanically undersized crimp that won't pass pull testing. This is the kind of detail that matters during high-volume panel builds or job-site ground termination runs.
- Black Oxide Finish Coating: Black oxide provides corrosion resistance without adding dimensional thickness to the die surfaces. On a precision die where interference with the connector barrel geometry would cause deformation or cracking, a coating that doesn't alter tolerances is the correct choice. It also reduces glare in bright work environments and provides a basic level of surface hardness.
- 500 kcmil Specific Sizing: This die is sized and calibrated for 500 kcmil conductor terminations only. Attempting to use it on 350 kcmil or 750 kcmil conductors produces out-of-spec crimps — either over-crimped (barrel cracking) or under-crimped (high resistance). Match the die to the conductor gauge on every termination.
- CTAPR Series Compatibility: The CD-920C-500 is designed specifically for Panduit's CTAPR copper compression grounding connector series. This means the die geometry matches the barrel wall thickness, seam orientation, and overall OD of CTAPR500 connectors. Using a compatible die from a different series risks barrel deformation during the crimp stroke.
- Single-Piece Packaging: Ships as one die per package — relevant for field procurement where you need to replace a lost or damaged die from an existing set without ordering a full die kit. Simplifies inventory management when stocking spares for a specific conductor size.
Integration and Compatibility
The CD-920C-500 is designed for use with Panduit Pan-Lug™ wire termination tools that accept indexed crimp die sets. Confirm your crimping tool model accepts this die format before ordering — Panduit manufactures both head-type and cartridge-type die systems, and compatibility is tool-specific, not universal across the Pan-Lug™ line.
This die is matched to the CTAPR series copper compression grounding connectors at the 500 kcmil conductor size. If you are terminating a different conductor gauge or a different Panduit connector series (such as CTAS or CTL), you need the corresponding die for that series and size. Cross-referencing the Panduit die index number against your connector part number is the definitive verification step — the embossed index number on the CD-920C-500 provides the reference directly on the die body.
For installations involving copper grounding and bonding assemblies in electrical distribution, telecommunications rooms, or industrial control panels, pairing the correct die with the correct connector ensures terminations meet NEC and NFPA 70E pull-force and resistance requirements. No adapters or shims are required when the die is matched to the correct connector series and conductor size.
Frequently Asked Questions
Q: What connector series is the CD-920C-500 designed for?
A: The CD-920C-500 is designed specifically for Panduit's CTAPR series copper compression grounding connectors at 500 kcmil. It is not a universal die and should not be used with other connector series or conductor sizes.
Q: What crimp type does the CD-920C-500 produce?
A: The CD-920C-500 produces a circumferential crimp — a full 360° crimp profile around the connector barrel. This differs from hexagonal indent crimps and provides even mechanical stress distribution across the conductor and barrel interface.
Q: How do I identify the correct die when working with multiple dies on a bench?
A: The die index number is embossed directly into the die body, so it cannot wear off or be misread like a printed label. Use the embossed index to cross-reference against your Panduit connector and tool documentation before each crimp.
Q: Does the CD-920C-500 work with all Panduit Pan-Lug™ crimping tools?
A: No. Pan-Lug™ tools use different die mounting systems depending on the tool model. Verify your crimping tool accepts indexed dies in this format before ordering. Consult the Panduit tool documentation or your tool model's compatible die list to confirm fit.
Q: How many dies come in one package?
A: The CD-920C-500 is packaged as a single die (package quantity of 1). This allows replacement of individual dies from a set without purchasing a full die kit.
Q: Can the CD-920C-500 be used for aluminum conductors?
A: The evidence specifies this die is designed for copper compression grounding connectors (CTAPR series). Copper and aluminum compression connectors use different barrel geometries and wall thicknesses — do not assume cross-metal compatibility without verifying against Panduit's connector and die selection guide.
The CD-920C-500 is one of those components that's easy to overlook until a termination fails an inspection or a joint overheats under load. The circumferential crimp geometry isn't just a feature bullet — at 500 kcmil, where you're dealing with a conductor that's roughly 1.5 inches in diameter with full strand fill, getting even contact pressure around the entire barrel circumference is the difference between a code-compliant joint and a hot spot waiting to cause a fault. I spec the CD-920C-500 specifically because the CTAPR series geometry matches this die, and there's no ambiguity about conductor size when the die index is embossed directly on the body.
Technical Highlights:
- Circumferential Crimp: Full 360° barrel contact on 500 kcmil conductors eliminates the partial-contact zones that hexagonal dies leave at hex corners — directly reducing joint resistance and thermal rise at high sustained current loads.
- Embossed Die Index Number: Physical embossing on the die body survives the grease, abrasion, and heat of a working tool bench. On a job with multiple conductor sizes staged simultaneously, this is the verification step that prevents a wrong-die crimp from passing visual inspection but failing pull-force testing.
- Black Oxide Finish: Dimensionally neutral coating — does not alter die cavity geometry or barrel clearance. Correct for a precision die where even a few thousandths of an inch of coating buildup would affect crimp OD and potentially crack the connector barrel on the press stroke.
Deployment Considerations:
- Verify your Pan-Lug™ tool model explicitly lists compatibility with this die format before ordering — Panduit's crimping tool line spans multiple die mounting systems, and a die that physically fits into a tool head does not guarantee the press geometry is calibrated for CTAPR500 connector walls.
- This die is single-conductor-size specific: 500 kcmil only. If your project uses mixed conductor gauges for grounding runs, you need separate dies for each size. Do not attempt to use this die as a close-enough substitute on 350 or 750 kcmil conductors — the resulting crimp will be out of spec in ways that are not visible without a cross-section or pull test.
The CD-920C-500 is the right call on commercial electrical or industrial grounding projects where 500 kcmil CTAPR connectors are specified — particularly in main switchgear rooms, transformer pads, or large UPS installations where ground integrity is a code and safety requirement, not a secondary concern.
