Panduit DNF18-250FIB-C Female Disconnect Terminal, 22-18 AWG, 100-Pack

Overview

The Panduit DNF18-250FIB-C is a fully insulated nylon female disconnect terminal from the Panduit Pan-Term™ wire termination line. Designed for 22-18 AWG conductors, it mates with standard 0.250×0.032-inch (6.35×0.8mm) male quick-connect tabs — the most common tab size in control panels, power distribution blocks, and field device wiring. Each package contains 100 terminals (carton quantity: 1,000), tin-plated copper contacts, and a red nylon insulator that visually identifies it as the 22-18 AWG range at a glance on a busy assembly bench.

The DNF18-250FIB-C (often searched as DNF18 250FIB C) is rated for wire termination applications up to 600V per UL 310, making it suitable for both low-voltage control wiring and standard 120/240VAC branch circuit terminations without needing a separate, higher-voltage-rated connector.

Key Features

• Tool-Free Mating and Removal: The disconnect design allows the female terminal to slide onto and off of a male tab without any tools. In field service situations — disconnecting a sensor, swapping a relay, or tracing a fault — this saves real time versus crimped ring or spade terminals that require a screwdriver or nut driver to release.
• Fully Insulated Nylon Body: Unlike partially insulated or bare metal disconnects, the full nylon sleeve over the contact barrel prevents incidental shorts to adjacent conductors or metal enclosure surfaces. In dense terminal strips or tight junction boxes, that extra protection matters — especially at 600V-rated installations.
• Internal Wire Stop: A built-in wire stop inside the barrel ensures the conductor bottoms out at the correct insertion depth before crimping. Inconsistent insertion depth is one of the most common sources of high-resistance crimp joints in the field; this feature eliminates the guesswork and produces a repeatable, quality connection every time.
• UL94V-2 / HB Flammability Rating at 105°C: The insulation is rated to UL94V-2 (self-extinguishing) and UL94-HB at a continuous operating temperature of 105°C. That thermal headroom covers motor control, HVAC equipment, and enclosures where ambient temperatures climb well above standard 75°C wire ratings.
• UL 310 and CSA 22.2 No.153 Listed at 600V: Dual-agency listing (UL and CSA) means these terminals pass inspection for both US and Canadian projects without substituting or documenting alternative terminals. A 600V listing is not incremental — it covers virtually every low-voltage and standard branch-circuit application in commercial and industrial buildings.
• Tin-Plated Contact: The etamé (tin-plated) copper contact resists oxidation better than bare copper, preserving low contact resistance over the terminal's service life. In environments with humidity cycling or mild chemical exposure, tin plating is the minimum you should accept.
• Compatible with Pan-Term Crimp Tools: The DNF18-250FIB-C is designed for use with Panduit crimp tools including the CT-1525, CT-2300/ST (CD-525), CT-2500/L (CT-2525CH), and UP14ZLW (CD-525). Using the matched tool ensures the die geometry produces the correct crimp profile — critical for achieving the mechanical and electrical performance the UL/CSA listing depends on.
• Pack of 100, Carton of 1,000: The 100-piece package quantity supports project-scale ordering without committing to a full carton. At 1,000 per carton, high-volume panel shops can reduce per-unit cost significantly. Both quantities ship as factory-sealed, genuine Pan-Term stock.

Integration and Compatibility

The DNF18-250FIB-C mates with standard 0.250×0.032-inch male quick-connect tabs found on relays, contactors, terminal blocks, circuit breakers, solenoids, and many field devices across security, access control, fire alarm, and building automation applications. The 22-18 AWG wire range covers the most common control wiring gauges — 18 AWG for power circuits, 20-22 AWG for signal and data lines in access control and alarm panels.

For projects requiring a complete termination system, pair these disconnects with compatible Panduit wire management and crimping tools from the Pan-Term family. Competitor cross-reference part numbers are extensive (see manufacturer documentation), confirming broad drop-in compatibility with existing designs using TE Connectivity, Molex, or similar 250-series female disconnects.

What's in the Box

• 100x Panduit DNF18-250FIB-C fully insulated nylon female disconnect terminals (22-18 AWG, 250×032 tab, red nylon, tin-plated)

Frequently Asked Questions

Q: What wire gauge range does the DNF18-250FIB-C accept?

A: The DNF18-250FIB-C is designed for 22-18 AWG conductors. This covers standard control wiring (18 AWG) through lighter signal wire (22 AWG) commonly used in security, access control, and industrial panel wiring.

Q: What male tab size does this female disconnect mate with?

A: It mates with standard 0.250×0.032-inch (6.35×0.8mm) male quick-connect tabs — the most widely used tab size in relays, contactors, terminal blocks, and field devices across commercial and industrial applications.

Q: What is the voltage rating for the DNF18-250FIB-C?

A: The terminal is UL 310 and CSA 22.2 No.153 listed at 600V, covering both low-voltage control circuits and standard 120/240VAC branch circuit applications.

Q: Which Panduit crimp tools are compatible with the DNF18-250FIB-C?

A: Panduit lists the CT-1525, CT-2300/ST (CD-525), CT-2500/L (CT-2525CH), and UP14ZLW (CD-525) as compatible crimping tools. Using the matched die ensures a correct crimp profile and maintains the UL/CSA listing.

Q: How many terminals are included, and is a larger carton available?

A: Each package contains 100 terminals. A full carton contains 1,000 terminals, which is the quantity for high-volume panel shops or production line orders.

Q: Does the DNF18-250FIB-C require tools to connect or disconnect from a male tab?

A: No. The disconnect design allows the female terminal to be inserted onto and removed from a male tab by hand, without any tools. This is particularly useful during field service, troubleshooting, or equipment swaps.