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Product

AS-Interface, ISOBUS & KNX Building Bus CablesIEC 62026-2 / EN 502952×1.5 mm² & 2×2.5 mm²10.0 × 4.0 mm Piercing Profile

AS-Interface / AS-i Flat CableIEC 62026-2 / EN 50295 2×1.5 mm² (10.0 × 4.0 mm) Yellow/Black mechanically keyed

AS-Interface / AS-i Flat Cable is the IEC 62026-2 and EN 50295 mechanically keyed trapezoidal profile cable (10.0 × 4.0 mm) containing two unshielded 1.5 mm² (or 2.5 mm²) Class 6 extra-fine tinned copper conductors (Brown + / Blue -) designed for

Oil-resistant
Flame-retardant
Ozone, UV & moisture
Low-EMC design
Order designation
AS-i Black 24V AUX Flat Cable 2×1.5 mm² EPDM/EPR
Outer Ø ≈
10.0 mm
Copper weight
29 kg/km
Total weight ≈
64 kg/km
Min. bend R (fixed)
40 mm
All sizes (6)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Profile dimensions
10.0 × 4.0 mm
Asymmetrical keyed trapezoidal
Conductors
2 × 1.5 mm²
Class 6 tinned Cu (also 2×2.5 mm²)
DC resistance
≤ 13.7 Ω / km
Per core @ 20 °C (≤ 27.4 Ω/km loop)
Bus impedance
85–125 Ω
At 167 kHz APM modulation
Rated current
Up to 8 A / 16 A
8 A (1.5 mm²) · 16 A (2.5 mm²)
Jacket compounds
EPR / TPE / PUR
Self-sealing insulation piercing

Typical values for this cable type, based on IEC 62026-2 / EN 50295 (AS-Interface / AS-i Profile Cable) — confirmed in the datasheet and quotation for your order.

Application fit

Is AS-Interface / AS-i right for your machine?

Purpose-engineered for rapid, tool-free insulation-piercing connection of pneumatic valve islands, conveyor photoeyes, safety light curtains (AS-i Safety at Work), and pushbuttons across packaging

Fixed installation

Suitable

Snaps directly into AS-i splitter boxes, conveyor rail channels, and M12 vamp drop adapters anywhere along the trunk.

Switchgear & control cabinet wiring

Suitable

Asymmetrical trapezoidal shoulder makes reverse-polarity connection of Brown (+) and Blue (-) physically impossible.

Immersion & wet locations

Suitable

Elastic EPDM/EPR rubber and PUR compounds self-seal around piercing needles to maintain IP67/IP68 washdown protection.

Energy chain / drag chain

With conditions

PUR version handles gentle festooning and conveyor bends; for tight multi-axis drag chains use round 2×1.5 mm² cable.

DeviceNet
Typical machinesConveyor & baggage handling systemsFood, beverage & bottling washdownAutomotive assembly & safety gatesPneumatic valve & sensor islands

Construction

Layer by layer

Two parallel Class 6 extra-fine tinned copper conductors (2×1.5 mm², ~84×0.15 mm; or 2×2.5 mm²) insulated with Brown (+) and Blue (-)

123
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Class 6 extra-fine tinned copper2 × 1.5 mm² (approx. 84×0.15 mm) or 2 × 2.5 mm² annealed tinned copper per IEC 60228IEC 62026-2 / EN 50295
2Piercing-grade core insulationElastic EPR, TPE, or polyolefin in Brown (AS-i+ / 24V+) and Blue (AS-i- / 0V)IEC 62026-2
3Keyed trapezoidal profile sheath (10 ×Self-healing EPDM/EPR rubber, TPE, or oil-resistant PUR in Yellow (AS-i), Black (24VIEC 62026-2 Profile

AS-i Yellow Bus Flat Cable (RAL 1012 / 1021)

2×1.5 mm² or 2×2.5 mm² Yellow flat cable carrying 30 V DC power + 167 kHz APM data on one pair.

AS-i Black 24 V DC Auxiliary Power Flat Cable (RAL 9005)

2×1.5 mm² or 2×2.5 mm² Black flat cable providing dedicated 24 V DC actuator power alongside the Yellow bus.

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on IEC 62026-2 / EN 50295 (AS-Interface / AS-i Profile Cable). Values for your order are confirmed in the datasheet and quotation.

Electrical

Characteristic impedance @ 167 kHz
100 Ω ± 20 Ω (85–125 Ω APM working band)
Max. DC conductor resistance @ 20 °C
≤ 13.7 Ω/km (1.5 mm²) · ≤ 8.21 Ω/km (2.5 mm²)
Mutual capacitance @ 1 kHz
≤ 80 pF/m (typical 55–65 pF/m)
Specific inductance @ 167 kHz
≈ 0.65 mH/km
Velocity of propagation (VoP)
≈ 66 % (0.66 c)
Operating / test voltage
300 V (UL AWM /IEC) · 2.0 kV AC dielectric

Thermal

Operating temp. (EPR / TPE / PUR)
-40 °C to +85 °C (EPR/TPE) · -40 °C to +80
Piercing installation temperature
-25 °C to +60 °C

Mechanical

Profile dimensions (W × H)
10.0 mm × 4.0 mm (± 0.15 mm precision
Min. bending radius (flat / edge)
16 mm across flat axis · 50 mm across coded

Resistance

Halogen-free & self-sealing
IEC 60754-1/2 (EPR, TPE-O & PUR versions)
Oil, coolant & washdown resistance
EN 60811-404 · IP67/IP68 contact sealing

Reference standards

Primary specification
IEC 62026-2 / EN 50295 · AS-International
North American approval
UL AWM Style 2103 / 20549 / CMG (300 V

Identification

Core colours (mandatory)
Brown (+, coded rib side) · Blue (-, flat
Sheath colour coding
Yellow = AS-i Bus · Black = 24 V DC AUX ·

Sizes

6 standard configurations (AS-Interface / AS-i)

Nominal dimensions, copper weights, impedance and transmission parameters for AS-Interface / AS-i per IEC 62026-2 / EN 50295 (AS-Interface / AS-i Profile

Dimensions & weights
Order designationConfigurationConductor sizeOuter Ø ≈
mm		Copper
kg/km		Weight ≈
kg/km		Min. bend R
fixed mm		Enquiry
Standard AS-Interface / AS-i configurations
AS-i Yellow Bus Flat Cable 2×1.5 mm² EPDM/EPR2×1.5 mm² (Yellow EPR Bus)1.5 mm² (16 AWG)10.0296440
AS-i Black 24V AUX Flat Cable 2×1.5 mm² EPDM/EPR2×1.5 mm² (Black EPR 24V AUX)1.5 mm² (16 AWG)10.0296440
AS-i Yellow Bus Flat Cable 2×1.5 mm² Oil-PUR2×1.5 mm² (Yellow PUR Bus)1.5 mm² (16 AWG)10.0296040
AS-i Black 24V AUX Flat Cable 2×1.5 mm² Oil-PUR2×1.5 mm² (Black PUR 24V AUX)1.5 mm² (16 AWG)10.0296040
AS-i High-Current Yellow Flat Cable 2×2.5 mm²2×2.5 mm² (High-Current Yellow)2.5 mm² (14 AWG)10.0488240
AS-i High-Current Black AUX Flat Cable 2×2.5 mm²2×2.5 mm² (High-Current Black AUX)2.5 mm² (14 AWG)10.0488240
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Outer diameters and weights are nominal factory values subject to ±5 % manufacturing tolerance per IEC 62026-2 / EN 50295 (AS-Interface / AS-i Profile Cable).

Quality & approvals

Testing & inspection

Routine tests on every production length, sample and type tests per batch — documented on an EN 10204 3.1 inspection certificate.

  1. ConductorClass 5 stranding
  2. Spark test100 % in-line
  3. Lay-upCores, earth, fillers
  4. SheathingInner, braid / screen, outer
  5. Electrical testsAC voltage, resistance
  6. DimensionsOD, wall thickness
  7. Inspection documents & dispatchDrum & dispatch
Testing & inspectionTest value / referenceFrequency
Routine tests
Laser optical profile gauge (10.0 × 4.0 mm)± 0.15 mm profile & core-centre pitch for piercing needles100 % of length
DC conductor resistance & 2 kV AC spark test≤ 13.7 Ω/km (1.5 mm²) / ≤ 8.21 Ω/km (2.5 mm²)100 % of reels
Sample tests
Insulation-piercing contact resistance & pull-out< 5 mΩ contact resistance across 100 thermal cyclesPer production batch
Self-healing IP67 water ingress & oil immersionIEC 62026-2 & EN 60811-404Type approval

Inspection certificate

Issued with every drum, listing the routine test results for that length.

Product approvals

IEC 62026-2 / EN 50295AS-International CertifiedUL AWM / CMG

Company certificates

ISO 9001ISO 14001ISO 45001VDE marks approvalUL / cULCE · LVD / EMC

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX AS-INTERFACE FLAT CABLE 2X1.5MM2
Delivery form
Non-returnable plywood reels or export drums
Standard reel lengths
100 m · 305 m · 500 m · 1000 m
MOQ
100 m (stock variants) · 500 m (custom)
Lead time
2–3 weeks ex-works
Incoterms
EXW, FOB, CIF, DAP

Technical documents

Downloads

PDFAS-Interface / AS-i Flat Cable – technical datasheet6 sizes · construction, technical data, approvalsXLSXAS-Interface / AS-i spec data (Excel)All 6 sizes with dimensions and data, for your BOM or quotation
Revision
2026-10-20
Updated
2026-10-20

FAQ

Questions engineers ask first

Not covered here? Send your drawing — an engineer replies within 2 business hours.

How does the AS-Interface flat cable insulation-piercing connection work?
The 10.0 × 4.0 mm flat cable has an asymmetrical trapezoidal key along one edge that aligns the internal Brown (+) and Blue (-) 1.5 mm² cores directly over two gold-plated piercing needles inside every AS-i slave module or splitter. Tightening the module cover drives the needles into the Class 6 tinned copper strands without stripping a single wire.
When should I choose EPDM/EPR rubber vs. TPE vs. PUR AS-i flat cable?
EPDM/EPR rubber offers the highest elasticity and self-healing sealing when modules are repositioned, plus halogen-free performance. TPE is cost-effective and UL-listed for dry conveyor lines. PUR (polyurethane) provides superior resistance to cutting oils, animal fats, and caustic washdowns in machining and food plants. Each production reel undergoes 100 % characteristic impedance verification, mutual capacitance and DC loop resistance testing, and dielectric spark/withstand inspection before dispatch with an EN 10204 3.1 certificate.
Why are Yellow and Black AS-i flat cables installed side by side?
The Yellow AS-i cable carries both the 30 V DC bus supply and 167 kHz Alternating Pulse Modulation (APM) data for sensors and logic. The Black AS-i cable carries a separate 24 V DC auxiliary supply (AUX) so high-current pneumatic solenoid valves and motor starters can be switched without loading or disturbing the Yellow bus.
What is the benefit of the 2×2.5 mm² AS-i flat cable over the standard 2×1.5 mm² version?
Our 2×2.5 mm² AS-i flat cable maintains the exact same 10.0 × 4.0 mm external profile so it fits standard piercing modules, while lowering loop resistance from 27.4 Ω/km to 16.4 Ω/km and increasing current capacity from 8 A to 16 A for long conveyor runs.

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AS-Interface / AS-i Flat Cable

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