Description
3-Pin Pluggable Terminal Block Connector (Pitch: 5.08mm)
Product Overview
The 3-Pin Pluggable Terminal Block Connector Set is a high-reliability modular interface engineered for efficient wire-to-board power and signal routing. The system consists of a 3-position female plug with rugged screw-clamp terminations and a matching 3-position male header designed for through-hole soldering onto printed circuit boards (PCBs).
This pluggable design allows technicians and developers to connect or disconnect an entire 3-line power rail or balanced signal link instantly without altering individual screw joints. It significantly minimizes downtime during field maintenance, system upgrades, or diagnostic swaps. Molded from flame-retardant polyamide, it ensures optimal mechanical strength and high dielectric isolation across standard electronics arrays.
Key Features
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Time-Saving Pluggable Interface: Enables rapid connect and disconnect functionality for 3 distinct electrical lines simultaneously, streamlining hardware assembly and field maintenance.
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Heavy-Duty Rising Cage Clamp: Internal nickel-plated brass cage clamps exert even, high-torque pressure across the wire profile, ensuring low contact resistance without tearing fine copper strands.
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Polarized Keying Alignment: The housing geometries of the male header and female plug are uniquely polarized to eliminate mis-mating and reverse-polarity errors during quick-disconnect cycles.
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Industry-Standard 5.08mm Pitch: Features standard $0.2\text{ inch}$ pin spacing, fitting cleanly into standard commercial PCB layouts and industrial breakout board grid footprints.
Technical Specifications
| Parameter | Specification |
| Component Type | Pluggable Terminal Block Set (Male Header + Female Plug) |
| Number of Positions (Poles) | 3 Pins |
| Pitch (Pin Spacing) | 5.08mm ($0.2\text{ inch}$) |
| Orientation | Straight / Vertical or $90^\circ$ Right Angle (Header options available) |
| Termination Style (Plug) | Screw Clamp (Rising Cage Mechanism) |
| Termination Style (Header) | PCB Through-Hole Solder Mount |
| Material (Housing) | Polyamide (PA66), Nylon UL 94V-0 Flame Retardant |
| Material (Contacts) | Phosphor Bronze / Brass, Tin-Plated |
| Screw Material | M2.5 or M3 Steel, Zinc-Plated |
| Rated Voltage | 300V AC/DC |
| Rated Current | 10A – 15A Max (Wire size dependent) |
| Wire Gauge Compatibility | 12 AWG to 24 AWG (Solid or Stranded) |
Applications
The ideal connector solution for standard mains AC power connections, balanced audio lines, and 3-wire sensor networks:
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AC Mains Power Lines: Perfect for routing standard single-phase AC connections requiring Line (L), Neutral (N), and Ground (G) lines cleanly into a disconnectable board port.
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3-Wire Sensor Modules: Providing a clean, pluggable connection node for industrial field sensors requiring power ($V+$), ground ($GND$), and an analog/digital signal line ($OUT$).
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Microcontroller Prototyping: Providing reliable, modular power and communication rails on custom development shield modules, breakout boards, and hardware testing rigs.
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Motor Control Wiring: Managing power connections for small DC brush motors, single-phase auxiliary fans, or peripheral actuators safely.
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