MCB Bus Bar Connector TB50-5 & TB25 Series
• 50 mm² / 25 mm² high-conductivity copper core with durable PVC insulation
• C45 / DZ47 compatible; stable low-loss power distribution
• Fast, secure installation for commercial, industrial, and residential panels
Overview
WILLELE’s MCB Bus Bar Connector range—covering TB50-5 (50 mm²) and the compact TB25 Series (25 mm²)—is engineered for clean, low-loss distribution between DIN-rail miniature circuit breakers. A precision high-conductivity copper (brass) conductor ensures excellent conductivity and reduced heat rise, while a robust PVC housing provides electrical insulation and dimensional stability. The standardized footprint integrates smoothly with mainstream C45 and DZ47 breakers, helping contractors complete panels faster with consistent quality.
Typical uses include commercial switchboards, industrial control enclosures, residential distribution panels, and projects where dependable busbar interconnects are essential. Choose TB50-5 when a larger cross-section and higher current margin are required; choose TB25 variants for compact layouts and everyday loads.
Key Features
- High current handling: 50 mm² (TB50-5) or 25 mm² (TB25 Series) copper core for low resistance and stable temperature rise.
- Reliable insulation: premium PVC outer body improves creepage/clearance and overall safety.
- Mechanical stability: molded housing supports repeatable torque and vibration resistance in panel environments.
- Fast installation: standardized form factor speeds assembly and simplifies maintenance or retrofits.
- Consistent quality: precise contact geometry minimizes losses at the breaker interface.
- Wide compatibility: designed for common C45 / DZ47 style miniature circuit breakers.
Specifications
General product parameters (all thickness D = 2 mm; standard packing 1000 pcs/ctn).
| Model | Square | Size (A×B×C) | Thickness (D) | Length (E) | PCS |
|---|---|---|---|---|---|
| TB25-1 | 25 mm² | 32×13×17 | 2 | 15 | 1000 |
| TB25-2 | 25 mm² | 34×17×17.5 | 2 | 13.5 | 1000 |
| TB25-3 | 25 mm² | 42×17×17.5 | 2 | 21.5 | 1000 |
| TB25-4 | 25 mm² | 52×17×17.5 | 2 | 30 | 1000 |
| TB50-5 | 50 mm² | 35×17×24.5 | 2 | 15 | 1000 |
| TB25-6 | 25 mm² | 45×13×17 | 2 | 29 | 1000 |
Dimension
Applications
- Commercial electrical panels and distribution boards
- Industrial control cabinets and OEM machinery panels
- Residential distribution panels and meter boxes
- Data centers and mission-critical UPS distribution
- Renewable projects using C45 / DZ47 style miniature breakers
Why Choose Us
- Manufacturing precision: tight dimensional control for repeatable torque and stable contact resistance.
- Quality assurance: routine electrical / mechanical checks for safety and durability.
- Design flexibility: 50 mm² and 25 mm² options to match current and layout needs.
- Operational efficiency: high-conductivity path minimizes I²R loss and heat generation.
- Installation economy: standardized geometry speeds assembly and maintenance.
- Responsive support: engineering guidance and quick quoting for OEM and contractor orders.
FAQ
Which model should I choose for higher currents?
Are these connectors compatible with C45 and DZ47 breakers?
What insulation material is used?
Can I mix TB25 and TB50-5 in the same panel?
What packing quantity is standard?
Get Pricing or Technical Support
Send your requirements (model, quantity, delivery terms). We usually reply within 12 hours.
