Product Description

FDD fully insulated female quick-connect terminals comply with IEC standards for low-voltage electrical equipment. Designed for use in confined spaces, they are widely applied in switchgear, PLC control cabinets, instrumentation, automation equipment, construction machinery, and secondary wiring circuits, facilitating safe and rapid connections with male quick-connect terminals.

The conductive body of the FDD terminal is stamped from high-quality brass, offering excellent electrical conductivity, oxidation and corrosion resistance, and structural strength, ensuring reliable connections even after repeated mating cycles. Once installed, the PVC insulation sleeve fully encapsulates the conductor, effectively preventing short circuits and electrical leakage.

Featuring a precision design, these terminals are ready for immediate use without complex setup and support convenient crimp installation. The insulation sleeves are color-coded (red, blue, yellow) to correspond with specific wire gauges, simplifying the selection and installation process.

Available in a range of specifications covering wire cross-sections of 1.25, 2, and 5.5 mm², these terminals ensure a perfect match with male quick-connect counterparts, making them an ideal choice for high-power applications in electrical systems and residential power infrastructure.

Product Specification

Item	Specification
Product Type	FDD Series Insulated Female Connector
Conductor Material	High‑purity copper, tin‑plated
Insulation Sleeve	PVC pre‑insulated sleeve
Connection Method	Cold crimping (operated with crimping pliers)
Rated Voltage	Max. 600 V
Operating Temperature	‑40 ℃ ~ +105 ℃
Color Coding	Red / Blue / Yellow, coded by applicable wire cross‑section
Features	Stable spring contact, anti‑oxidation, anti‑corrosion, quick plug & disconnect
Compliance Standard	Relevant IEC standards for low‑voltage connectors

Operating Environment Conditions

Item	Specification
Ambient operating temperature	-40 ℃ ~ +105 ℃
Storage temperature	-45 ℃ ~ +125 ℃
Altitude	≤2000 m above sea‑level
Relative humidity	≤95 %, non‑condensing
Working atmosphere	Indoor or mild outdoor use. Avoid long‑term exposure to corrosive gas, oil mist and direct ultraviolet radiation.
Vibration resistance	Capable of enduring regular mechanical vibration from low‑voltage distribution equipment

FAQ

Question 1: What is the primary purpose of the FDD female quick-connect terminal?

Answer: The FDD female quick-connect terminal is designed to mate with a male terminal, facilitating rapid connections and power distribution.

Question 2: What materials are used in the product? Does it include PVC insulation?

Answer: The conductive contact component is made of pure copper with a specialized surface finish, offering high strength, high conductivity, and resistance to oxidation and corrosion. The PVC sleeve provides insulation; once connected, it isolates live parts and protects the connection point.

Question 3: Do you offer customization or OEM services?

Answer: We provide OEM support, including custom packaging and branding services. We can also adjust contact tension specifications based on specific requirements. Discounts and rebates are calculated based on specific needs.

Question 4: Can I request samples? What are your business hours?

Answer: Standard samples are provided free of charge, though the customer is responsible for international shipping costs. A fee applies to sample production, which is refundable upon confirmation of a bulk order. The order lead time is 7 to 15 working days; the specific production cycle depends on the production schedule.

Question 5: What are the advantages of this product? What after-sales service do you provide?

Answer: The product complies with IEC standards for miniature circuit breakers; its making and breaking capacities have been verified by professional testing agencies. We offer spare parts or upgrade services to address relevant issues. Failures caused by incorrect model selection, improper installation, or forced operation are not covered under warranty.

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