SPECIFICATIONS

Heavy-Duty TB & TC Series Screw Terminal Barrier Block Strips (15A / 25A / 45A Rated Dual Row Connectors)

Streamline your industrial control cabinets, automation machinery, and residential power distribution boards with our premium TB and TC Series Screw Terminal Barrier Block Matrix. Engineered to create clean, organized, and structurally secure wire splicing networks, these heavy-duty dual-row terminal rows effortlessly handle continuous structural loads up to 15A, 25A, or 45A. Every unit features a robust, heat-resistant base integrated with high-conductivity copper alloy terminal plates and heavy-torque binding screws. The assembly is topped with a crystal-clear, removable Flame-Retardant PC Insulation Cover that allows immediate visual inspection of wire placements while offering absolute physical defense against accidental short-circuits, flying dust, and human contact.

### Outstanding Product Features:

• High-Conductivity Copper Matrix: Features extra-thick nickel-plated copper alloy connector plates that minimize circuit contact resistance, maximize structural conductivity, and completely prevent high-current galvanic corrosion over decades of deployment.

• Flame-Retardant Engineered Base: The solid structural backplane is injection-molded from premium high-temperature resistant engineering polymer, ensuring exceptional mechanical impact strength and outstanding thermal insulation.

• Clear Anti-Shock PC Protective Cover: Accompanied by a transparent, flip-up or removable polycarbonate shield that locks onto the terminal shoulders, preserving complete visibility of terminal joints while completely mitigating electrical arc risks.

• Heavy-Torque Screw Binding System: Outfitted with high-tensile zinc-plated steel screws that bite firmly down onto bare wire strands, fork terminals, or ring lugs, delivering a tight, vibration-proof mechanical connection that will not back out under stress.

• Flexible Mounting Configurations: Supports classic flat-surface screw-down mounting or standard DIN rail slide-and-snap installation, giving panel builders complete layout flexibility inside compact relay racks or wide control enclosures.

### Technical Specifications:

• Product Component Line: Industrial Dual-Row Screw Terminal Barrier Strip Kit

• Model Configurations: TB-1503 to TB-1512 (15A) | TB-2503 to TB-2512 (25A) | TB-4503 to TB-4512 (45A) Series

• Position Layout Arrays: 3, 4, 5, 6, 8, 10, or 12 Screws Positions (Dual-Row Terminals)

• Maximum Rated Continuous Load: 15 Amperes / 25 Amperes / 45 Amperes

• Maximum Operational System Voltage: 600V AC / DC Continuous Workload

• Primary Shell Material Base: High-Density Flame-Retardant Industrial Polymer

• Transparent Cover Composition: Ultra-Tough Flame-Retardant Polycarbonate (PC Cover)

• Metal Terminal Hardware Base: Pure Copper Alloy Plate with High-Tensile Zinc-Plated Locking Screws

• Primary Application Profiles: Industrial Automation Panels, Power Distribution Cabinets, Marine Splicing Hubs, HVAC System Controls, Commercial Lighting Strips, PLC Interfacing Racks.

### Model Select Matrix Guide:

• TB1503 - TB1512 Series (15A Capacity): Perfect for small-scale signal lines, sensory inputs, relay connections, and low-power control modules.

• TB2503 - TB2512 Series (25A Capacity): The go-to mid-range standard for domestic breaker boxes, machinery power routing, and commercial LED lighting lines.

• TB4503 - TB4512 Series (45A Heavy-Duty Capacity): Tailor-made for thick, heavy-gauge wiring feeding high-horsepower industrial electric motors, heavy HVAC air handlers, and primary power distribution lines.

### Package Content Includes:

• 1 PC x Heavy-Duty Screw Terminal Barrier Block Strip (Selected Model Array / Positions Count)

• 1 PC x Transparent Removable Flame-Retardant PC Insulation Cover

Pro Panel Builder Installation Tip: For maximum long-term safety, crimp standard insulated fork or ring terminals onto your wire leads before inserting them under the pressure screws. When screwing down the terminal leads, torque firmly to ensure the wire core is flattened smoothly against the inner copper plate—this guarantees an airtight, zero-resistance electrical bond!