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Compact (Sandwich) Busbar
200–6300 A · space-saving · IP54
The compact busbar (bus duct) is a distribution device for the efficient transmission of high current, built from high-conductivity conductors (copper/aluminium), insulation materials and accessories. It replaces traditional cable to achieve cost reduction, greater efficiency and flexible high-current distribution.
The hollow-centre design improves heat dissipation; the modular structure is compact with a small footprint; the flame-retardant shell is heat-resistant and self-extinguishing.
Technical Parameters
| Execution standard | GB7251.6-2015, JB8511-2011 |
| Rated voltage | AC 660 V / DC 1000 V |
| Rated current | 200 A – 6300 A |
| Dielectric strength | AC 3000 V, 1 min, no flashover |
| Short-time withstand current | 20 × rated current for 1 s |
| Protection grade | IP54 |
| Installation altitude | ≤ 2000 m |
| Flame retardancy | UL94V0 |
| Insulating material | PVC-SG-5 |
TLMX Models & Ratings
| Model | Rated current (A) | Cross-section (mm²) | Phase spacing (mm) | Flame retardancy | Insulation |
|---|---|---|---|---|---|
| TLMX-320A | 320 | 200 | ≥100 | UL94V0 | PVC-SG-5 |
| TLMX-400A | 400 | 250 | ≥110 | UL94V0 | PVC-SG-5 |
| TLMX-500A | 500 | 310 | ≥110 | UL94V0 | PVC-SG-5 |
| TLMX-650A | 650 | 400 | ≥110 | UL94V0 | PVC-SG-5 |
| TLMX-1000A | 1000 | 650 | ≥130 | UL94V0 | PVC-SG-5 |
| TLMX-1600A | 1600 | 1050 | ≥130 | UL94V0 | PVC-SG-5 |
| TLMX-2500A | 2500 | 1650 | ≥200 | UL94V0 | PVC-SG-5 |
| TLMX-4000A | 4000 | 2800 | ≥200 | UL94V0 | PVC-SG-5 |
| TLMX-5000A | 5000 | 3350 | ≥200 | UL94V0 | PVC-SG-5 |
Components & Accessories
The system is supplied as a complete package. The standard components are shown below — contact us for the full accessory list for your application.
Key Features
- Up to 6300 A in a compact footprint.
- Hollow-centre conductor aids heat dissipation.
- Modular sections — fast, flexible installation.
- Flame-retardant, heat-resistant, self-extinguishing shell (UL94V0).
- IP54 protection.
Applications
Industrial plants, data centres, workshops, high-current power distribution rooms.
Other Power Busbar
Air-Insulated Busbar❯
Air + slot insulation · best heat dissipation · lowest cost. Air-insulated bus duct uses air with slot insulation between conductors; natural convection gives the best heat dissipation of the three types at the lowest cost.
Cast-Resin Busbar❯
Cast in epoxy · IP66–IP68 · humid & corrosive. Cast-resin bus duct is cast in epoxy resin for excellent protection in humid and corrosive environments, with medium-to-high current and the highest ingress protection.
Need a Conductor Rail or Power Busbar Solution?
Send us your crane span, current rating and travel length — our engineers will recommend the right system and prepare a quotation.
Tenglin Electric (Shandong) Co., Ltd is a professional manufacturer of conductor rail and power busbar electrification systems for cranes and industrial automation.
Products
Contact
- Intersection of Zhaode Rd & Rongli St, Economic Development Zone, Qingzhou, Shandong, China
- Tel: +86 156 2162 6483
- Email: [email protected]
- Mon–Sat 08:00–18:00 (GMT+8)