TB-1503 3-Position 600V 15A Double Row Screw Terminal Strip

TB-1503 3-Position 600V 15A Double Row Screw Terminal Strip provides a robust and organized solution for managing electrical connections in high-voltage industrial and hobbyist projects. This terminal block features a double-row design, allowing users to connect and bridge multiple wires securely without soldering or complex crimping. Consequently, it simplifies the wiring process and enhances circuit reliability by preventing loose connections and accidental shorts. The assembly includes a transparent plastic cover that protects the terminals from dust and accidental contact. Furthermore, the rigid construction ensures the unit withstands significant mechanical stress in demanding environments. Therefore, you should integrate this terminal strip into your control panels or power distribution systems to maintain a professional and safe wiring architecture.

Key Features:

• Double Row Configuration: Offers two parallel rows of screw terminals, enabling easy bridging and distribution of electrical signals or power.
• High Voltage Rating: Engineered to safely handle up to 600 V, making it suitable for both AC and DC power applications.
• Protective Clear Cover: Includes a removable, transparent plastic shield that prevents accidental shorts while allowing for easy visual inspection.
• Robust Construction: Utilizes high-quality flame-retardant materials and nickel-plated brass screws for excellent conductivity and corrosion resistance.
• Easy Mounting: Features pre-drilled mounting holes at each end of the strip for quick and secure installation onto chassis or enclosures.

Technical Specifications:

• Model Number: TB-1503
• Number of Positions: 3 (Double Row, 6 Screws Total)
• Rated Voltage: 600 V
• Rated Current: 15 A
• Dielectric Strength: 2500 V_AC / 1 minute
• Insulation Resistance: ≥ 1000 MΩ at 500 V_DC
• Wire Gauge Range: 22 AWG to 14 AWG

Mechanical Specifications:

• Housing Material: High-strength Polycarbonate (Black)
• Terminal Material: Nickel-Plated Brass
• Screw Type: M3 Steel (Zinc Plated)
• Operating Temperature: −40°C to +120°C

Dimensions:

• Total Length: ≈ 45.5 mm
• Total Width: ≈ 22.0 mm
• Total Height: ≈ 17.5 mm (Including cover)
• Mounting Hole Center Distance: ≈ 35.5 mm
• Mounting Hole Diameter: ≈ 4.0 mm

Pinout and Wiring:

• Standard Wiring: Strip the wire insulation by approximately 5 mm, insert the wire into the terminal clamp, and tighten the M3 screw firmly.
• Dual-Sided Access: Connect the input source to one side of the screw terminal and the load to the corresponding opposite screw.
• Bridging: Use a fork-type jumper strip across adjacent terminals if you need to distribute a single input to multiple outputs.
• Safety Note: However, always ensure the power is disconnected before performing any wiring or maintenance on the terminal strip.

Datasheet Reference:

• Download TB Series Terminal Strip Datasheet

Commonly Used in:

• Electrical Control Panels: Managing the complex wiring of relays, contactors, and power supplies.
• DIY Projects: Serving as a primary power distribution hub for robotics, CNC machines, and 3D printers.
• Automotive Electronics: Organizing auxiliary power connections for lights, fans, and sensors in vehicles.

Applications:

• Power Distribution: Efficiently splitting a single power feed into multiple downstream components.
• Signal Routing: Creating a centralized junction for analog or digital signal wires to improve troubleshooting access.
• Industrial Machinery: Connecting motor leads and sensor wires within junction boxes.

Equivalent Models:

• TC-153: A functionally identical 3-position terminal block often used in similar industrial enclosures.
• HB9500-3P: In short, this is a PCB-mount equivalent, though it lacks the chassis mounting flange found on the TB-1503.
• TD-1503: A heavy-duty variation that frequently shares the same footprint and current rating.

Package Includes:

• 1 x TB-1503 3-Position 600V 15A Double Row Screw Terminal Strip (with Cover)