Panduit EV18-8RB-L StrongHold Insulated Vinyl Ring Terminal

Overview

The Panduit EV18-8RB-L is a StrongHold™ insulated vinyl ring terminal designed for 22–18 AWG wire with a #8 screw hole. Sold in 50-piece packages (carton quantity 500), it suits panel wiring, control cabinets, and field termination work where a secure, listed connection is required. The EV18-8RB-L (often searched as EV18 8RB L) carries both UL listing 587H E52164 and CSA certification LR31212 — the dual listing matters on jobs where the inspector will check for both marks.

Key Features

• 22–18 AWG Wire Range: Covers the most common control-circuit and signal wire gauges in one SKU — no need to stock separate terminals for 20 AWG sensor leads and 18 AWG power runs in the same enclosure.
• Vinyl Insulation, UL587-H Flammability Rating: The PVC sleeve meets the UL587-H flame rating, so it won't contribute to fire propagation inside a panel — a basic compliance requirement for listed assemblies.
• Tinned (Verzinkt) Copper Barrel: The zinc-plated finish resists oxidation at the crimp joint. On connections that see vibration or humidity cycling, an untreated copper barrel corrodes and increases resistance over time; tinning slows that degradation.
• #8 Screw Size: Matches the most common terminal block and lug screw size in low-voltage security and access control panels. You won't need to upsize the ring to get it over the stud.
• 0.91 in Overall Length, 0.31 in (7.9 mm) Width: Compact footprint fits inside crowded din-rail enclosures without stacking terminals or forcing wire dressing changes.
• UL Listed 587H E52164 + CSA Certified LR31212: Dual-listed for US and Canadian installations — single part number works across both markets, simplifying procurement for national integrators.
• 50-Piece Package / 500-Piece Carton: The 50-piece bag is practical for service calls and small panels; the 500-piece carton suits production wiring runs. Order the quantity that matches your job size.
• Compatible Crimp Tools: Panduit specifies use with CT-100A, CT-600-A (CT-550CH), CT-1550, CT-1551, CT-2500 (CT-2550CH), CT-160, CT-260, and CT-410 — all Panduit ratcheting or bench crimpers. Using a non-specified tool risks an under- or over-crimped barrel that fails pull-test.

Integration & Compatibility

The EV18-8RB-L is part of Panduit's Panduit StrongHold terminal line and fits standard wire management and termination workflows. It is compatible with the crimp tools listed above and is used alongside Panduit's broader terminal and connector catalog. For panel builds requiring a complete power and wiring accessories solution, pairing these terminals with Panduit's labeled cable ties and duct keeps the assembly inspection-ready. The dual UL/CSA listing supports cross-border projects without sourcing a separate SKU for each jurisdiction.

What's in the Box

• 50x Panduit EV18-8RB-L StrongHold vinyl insulated ring terminals

Frequently Asked Questions

Q: What wire gauge range does the EV18-8RB-L accept?

A: The EV18-8RB-L accepts 22–18 AWG wire. It is not rated for 16 AWG or heavier conductors — use a larger barrel terminal for those gauges.

Q: What screw size does the ring fit?

A: The ring is sized for a #8 screw. This matches most standard terminal block studs and lug screws used in low-voltage and control panel wiring.

Q: Is the EV18-8RB-L UL and CSA listed?

A: Yes. It carries UL listing 587H file E52164 and CSA certification LR31212, supporting compliant installations in both the US and Canada.

Q: Which crimp tools are specified for the EV18-8RB-L?

A: Panduit specifies the CT-100A, CT-600-A (CT-550CH), CT-1550, CT-1551, CT-2500 (CT-2550CH), CT-160, CT-260, and CT-410. Using a non-listed tool can result in a crimp that fails pull-test requirements.

Q: How many terminals come in a package, and is a larger quantity available?

A: The standard package contains 50 terminals. A full carton contains 500 terminals, suitable for production wiring runs or stocking a service vehicle.

Q: What is the overall length and width of the EV18-8RB-L terminal?

A: Overall length is 0.91 inches. Overall width is 0.31 inches (7.9 mm), making it compact enough for use in congested din-rail panels without requiring additional wire management adjustments.

Ted Perry

The EV18-8RB-L is the kind of terminal that rarely gets questioned until something goes wrong — and with dual UL/CSA listing and a tinned barrel, that failure mode is unlikely. I specify it on access control and low-voltage security panels where the authority having jurisdiction (AHJ) checks listing marks, and the #8 ring size means it drops straight onto the most common terminal block hardware without modification.

Technical Highlights:

• Tinned Copper Barrel: Zinc plating on the crimp barrel resists oxidation at the contact interface — critical in panels that see temperature cycling or elevated humidity, where bare copper terminals develop resistance creep over months.
• UL587-H Flammability Rating: The vinyl insulation is rated to the UL587-H flammability standard, satisfying listed-assembly requirements for panel interiors without requiring additional sleeving or heat shrink over the terminal.
• 22–18 AWG Range, 0.31 in (7.9 mm) Width: Single SKU covers the full control-wire range in a typical low-voltage panel, and the 7.9 mm width clears standard din-rail terminal block spacing without overlap.

Deployment Considerations:

• Only use with the specified Panduit crimp tools (CT-100A, CT-160, CT-260, CT-410, and the CT-600/CT-1550/CT-2500 series). An uncalibrated or non-ratcheting tool will not consistently achieve the correct crimp height, and a pulled terminal in a live panel is a service call you don't want.
• The 50-piece package is the minimum order quantity (MOQ 10 packs). If you need fewer than 50 for a one-off repair, factor that into your stocking decision — the per-unit cost at carton quantity (500 pieces) is meaningfully lower.

For integrators wiring access control head-end panels, IDF closets, or reader interface modules where 22–18 AWG control runs terminate at a #8 stud, the EV18-8RB-L is a straightforward, inspection-ready choice with no substitution risk across US and Canadian job sites.