Panduit DV18-250P-LYY Pan-Term® Piggyback Disconnect Terminal

The Panduit DV18-250P-LYY is a tin-plated brass piggyback female disconnect designed for 18 AWG wire and 0.250" (1/4") male tabs. The stacking configuration allows multiple circuits to connect to a single tab point without splicing or expensive panel modifications—critical when retrofitting control cabinets, access panels, or expanding I/O on existing PLCs and controllers. The insulation-grip barrel crimps to both conductor and jacket, maintaining pull strength and strain relief in high-vibration environments like mechanical rooms, elevator controllers, and industrial enclosures.

Key Features

Piggyback (stacking) design connects two circuits to one 0.250" tab without wire nuts or splices

Tin-plated brass contact resists corrosion in HVAC equipment rooms and damp locations

Metal insulation support crimps vinyl jacket for pull resistance in vibration-prone installations

Toolless insertion and removal from male tab—no pliers needed for service calls

Rated 300V, UL 94V-2 insulation, 90°C (194°F) maximum conductor temperature

Yellow vinyl insulation (industry-standard color for 18-16 AWG range)

Compatible with Panduit CT-1550, CT-1551, CT-2300/ST, CT-2500/L, and UP14ZLW crimp tools

The dual-crimp barrel design—one for the conductor, one for the insulation—distributes mechanical stress across the entire termination rather than concentrating it at the wire-to-barrel interface. This matters in access control strikes, magnetic locks, and card readers where vibration from repeated actuation cycles can fatigue single-crimp terminals and cause intermittent faults. The tin plating over brass provides a ductile, gas-tight connection that maintains contact pressure through thermal cycling, unlike bare brass that oxidizes in moisture or unplated copper that work-hardens and cracks. For control panels mixing 18 AWG signaling wire (typical for dry contacts, relay coils, and sensor returns) with power distribution on the same bus bar or terminal strip, the piggyback form factor eliminates the need for intermediate splice blocks or wire-nut junctions that add failure points and consume enclosure volume.

The 0.250" tab width is the de-facto standard for control relays, contactors, terminal blocks, and DIN-rail power supplies in commercial low-voltage systems. Because the disconnect slides onto the tab from the side rather than requiring end-loading like ring terminals, technicians can add or swap circuits on energized panels (following NFPA 70E arc-flash protocols) without dismantling entire terminal strips. The toolless release feature—squeeze the spring tang with fingertips to disengage—speeds troubleshooting and reduces the risk of dropping small screws or damaging adjacent terminations in dense panels. Panduit specifies a crimp-tool nest (the die profile that shapes the barrel) compatible with their CT-series ratcheting hand tools and UP-series pneumatic presses; using non-compatible tools can under-crimp (leading to high resistance and heating) or over-crimp (fracturing strands and reducing ampacity).

UL-listed for 300V service and UL 94V-2 flammability compliance, this terminal meets NEC Article 110.3(B) requirements for electrical equipment installed per listing instructions. The 90°C insulation rating aligns with THHN/THWN-2 building wire, ensuring the termination won't derate the circuit when used with modern 90°C-rated conductors in commercial raceways. Supplied in 50-piece packages (carton quantity 250), the bulk format suits panel shops and integrators running production builds rather than one-off field terminations. For access control, intrusion, and fire-alarm control panels where a single power bus feeds multiple device circuits, the piggyback stack eliminates the daisy-chain wiring and wire-nut clusters that inspectors flag during AHJ rough-in reviews.