FB
Flexible insulated copper busbars
application
The flexibility of the busbars makes it possible to install into difficult equipment or small places easily.
They can be particularly well used as connectors in switchgears and between transformers, switching
devices and prefabricated power networks.
construction
Flexible insulated busbars consist of several layers of uncoated or tinned copper strips and are
insulated with highly flexible PVC or TPE compound with extrusion technology. They are excellently
suitable for high current connections inside switchgears, solar energy panels and other electro
technical installations. It is an ideal replacement for thick cables and solid bus bars.
The ends of the busbars can be used directly as connections by stamping holes on the laminated
copper strips at ends.
material
Conductor:
- Annealed copper strips ( 99.9%Cu)
- Single layer thickness 0.3~1mm
- Surface: uncoated or tinned
- Electrical conductivity: 56.2MS/m (corresponding to 97%IACS)
- Tensile strength: 200MPa
- Elongation: 30%
Insulation:
- Material: high flexible PVC or TPE Color: PVC black or orange; TPE grey
- Thickness: 1~1.5mm
(orange), 1.8~2.2mm (black) - Coating method: extrusion
- Dielectric strength: >23kV/mm
- Tensile strength: 20MPa
- Elongation after 135˚C 7-day aging test: >180%
- Oxygen index: 30%
- Flame retardant performance: self-extinguishing, UL94-V0
Working temperature:
- PVC: -30˚C ~+105˚C
- TPE: -40˚C ~+135˚C
Operating voltage: 600Vac/750Vdc; 1000Vac/1500Vdc
Voltage withstand performance with 15min / 50Hz AC:
- between busbar and ground: >15k
- between busbars: >30kV
Flame retardant performance: self-extinguishing, UL94-V0
UL758 certificated
SGS certified: RoHS compliant.
Section area range: 7mm ~1200mm
Maximum size: 120x12mm
Dimensions and ampacity
- Standard length: 2m or 3m (25m in roll is possible for 1-layer busbars).
- Cross-section: up to 1200mmm .
- Ampacity: values in the table are only for reference, because the actual ampacity is related to the application conditions.
delivery method
Delivery method : Standard length: 2m or 3m (25m in roll is possible for 1-layer busbars)
Product card
We provide cataloged products that you can view and select from our brochures.
Contact
ul. Jana Matejki 6,
66-100 Brzezie k. Sulechów
Guidance for selecting the correct dimensions
The ampacities are related to the cross-sections and operating ambient temperature, as shown in above table. Therefore, three factors should be considered for deciding the dimensions:
- Ampacity
- Allowed temperature-rise on the flexibar
- Width of the flexibar
The temperature-rise T can be calculated with formula:
T=Tr Ta
Ta: ambient temperature
Tr: temperature of busbars at rated current (pay attention: for general electrical apparatus Tr should be 105 ).
Example (just for reference):
If operating ambient temperature is 40˚C and you need ampacity 510A with bar width 40mm, you could get allowed highest temperature-rise 65˚C (105 -40 =65˚C ), so you could select dimension 32×1×4. With this busbar, the highest temperature rise will be 50˚C with current 520A.
Cat. No | Dim x bars q-ty | Cross section [mm2] | Ampacity [A] ΔT = 20K | Ampacity [A] ΔT = 40K | Ampacity [A] ΔT = 50K |
|---|---|---|---|---|---|
FB 15.5×0.8×2 | 15.5×0.8×2 | 24.8 | 125 | 175 | 200 |
FB 15.5×0.8×3 | 15.5×0.8×3 | 37.2 | 160 | 210 | 240 |
FB 15.5×0.8×4 | 15.5×0.8×4 | 49.6 | 195 | 265 | 295 |
FB 15.5×0.8×6 | 15.5×0.8×6 | 74.4 | 225 | 320 | 360 |
FB 15.5×0.8×8 | 15.5×0.8×8 | 99.2 | 265 | 380 | 430 |
FB 15.5×0.8×10 | 15.5×0.8×10 | 124 | 300 | 420 | 480 |
FB 20x1x2 | 20x1x2 | 40 | 170 | 240 | 270 |
FB 20x1x3 | 20x1x3 | 60 | 230 | 320 | 360 |
FB 20x1x4 | 20x1x4 | 80 | 270 | 380 | 440 |
FB 20x1x5 | 20x1x5 | 100 | 300 | 430 | 490 |
FB 20x1x6 | 20x1x6 | 120 | 330 | 470 | 530 |
FB 20x1x8 | 20x1x8 | 160 | 400 | 560 | 620 |
FB 20x1x10 | 20x1x10 | 200 | 420 | 580 | 650 |
FB 24x1x2 | 24x1x2 | 48 | 200 | 280 | 320 |
FB 24x1x3 | 24x1x3 | 72 | 250 | 360 | 410 |
FB 24x1x4 | 24x1x4 | 96 | 280 | 410 | 460 |
FB 24x1x5 | 24x1x5 | 120 | 330 | 470 | 530 |
FB 24x1x6 | 24x1x6 | 144 | 360 | 510 | 570 |
FB 24x1x8 | 24x1x8 | 192 | 420 | 590 | 670 |
FB 24x1x10 | 24x1x10 | 240 | 500 | 700 | 790 |
FB 32x1x2 | 32x1x2 | 64 | 230 | 320 | 360 |
FB 32x1x3 | 32x1x3 | 96 | 280 | 410 | 460 |
FB 32x1x4 | 32x1x4 | 128 | 320 | 460 | 520 |
FB 32x1x5 | 32x1x5 | 160 | 390 | 550 | 610 |
FB 32x1x6 | 32x1x6 | 192 | 440 | 620 | 700 |
FB 32x1x8 | 32x1x8 | 256 | 510 | 720 | 822 |
FB 32x1x10 | 32x1x10 | 320 | 600 | 840 | 930 |
FB 40x1x2 | 40x1x2 | 80 | 240 | 330 | 380 |
FB 40x1x3 | 40x1x3 | 120 | 330 | 480 | 540 |
FB 40x1x4 | 40x1x4 | 160 | 400 | 560 | 630 |
FB 40x1x5 | 40x1x5 | 200 | 450 | 630 | 710 |
FB 40x1x6 | 40x1x6 | 240 | 480 | 680 | 750 |
FB 40x1x8 | 40x1x8 | 320 | 600 | 830 | 920 |
FB 40x1x10 | 40x1x10 | 400 | 670 | 920 | 1030 |
FB 50x1x3 | 50x1x3 | 150 | 400 | 570 | 650 |
FB 50x1x4 | 50x1x4 | 200 | 490 | 700 | 790 |
FB 50x1x5 | 50x1x5 | 250 | 540 | 780 | 880 |
FB 50x1x6 | 50x1x6 | 300 | 590 | 840 | 950 |
FB 50x1x8 | 50x1x8 | 400 | 680 | 1000 | 1130 |
FB 50x1x10 | 50x1x10 | 500 | 750 | 1100 | 1300 |
FB 63x1x5 | 63x1x5 | 315 | 650 | 900 | 1000 |
FB 63x1x6 | 63x1x6 | 378 | 690 | 980 | 1100 |
FB 63x1x8 | 63x1x8 | 504 | 840 | 1200 | 1350 |
FB 63x1x10 | 63x1x10 | 630 | 920 | 1300 | 1450 |
FB 80x1x5 | 80x1x5 | 400 | 700 | 1100 | 1230 |
FB 80x1x6 | 80x1x6 | 480 | 780 | 1210 | 1360 |
FB 80x1x8 | 80x1x8 | 640 | 950 | 1400 | 1570 |
FB 80x1x10 | 80x1x10 | 800 | 1090 | 1550 | 1730 |
FB 100x1x5 | 100x1x5 | 500 | 860 | 1250 | 1400 |
FB 100x1x6 | 100x1x6 | 600 | 950 | 1380 | 1530 |
FB 100x1x8 | 100x1x8 | 800 | 1100 | 1580 | 1760 |
FB 100x1x10 | 100x1x10 | 1000 | 1220 | 1710 | 1920 |
FB 100x1x12 | 100x1x12 | 1200 | 1300 | 1800 | 2010 |