Screw Terminal Block Four Pin Connector Stackable

Screw Terminal Block - 4-Pin Through-Hole PCB Connector (Part No. BZ31)

Description
This 4-pin screw terminal block (Part No. BZ31) is a robust through-hole PCB connector engineered for secure wire-to-board electrical terminations. Featuring a light grey housing with top-entry screw clamps and four PCB mounting pins, it enables solid or stranded conductors to be safely anchored without direct soldering. Its integrated 4-pole design provides a clean, consolidated layout for connecting multi-conductor power, signal, or control wiring directly to circuit boards.

Key Features:

• 4-Pole Integrated Design: Provides four independent screw-down clamp connections within a single compact module.
• Screw Clamp Terminals: Top-accessible slotted screws secure conductors firmly inside internal clamping cages for reliable electrical contact.
• Through-Hole PCB Mount: Sturdy mounting pins allow easy insertion and soldering onto printed circuit boards.
• Durable Housing: Moulded grey plastic housing provides effective electrical insulation and mechanical strength.

Technical Specifications:

• Part Number: BZ31
• Connector Type: 4-pin screw terminal block
• Mounting Type: Through-hole PCB mount
• Terminal Count: 4 screw-down terminals
• Pin Length: Approx. 4 mm
• Dimensions: Approx. 20 x 9 x 16 mm (W x D x H)
• Housing Material: Grey plastic

Suggested Uses & Applications:

• Terminating four-wire power leads, sensor feeds, or signal lines on printed circuit boards.
• DIY audio equipment, crossover networks, and custom electronic control assemblies.
• Prototyping boards and hobbyist projects requiring removable wire connections.

Installation & Assembly Tips:

• PCB Alignment: Verify all four pins are aligned with the circuit board through-holes before soldering to avoid mechanical strain on the connector body.
• Wiring Technique: Strip wire insulation to the correct length, insert wire strands into the entry port, and tighten the top slotted screw gently until snug.