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Product

Industrial heating & heat-tracing cablesIEC 60079-30-1 · IEEE 515110–120 V & 208–277 V10–60 W/m · Max +215 °C

Self-Regulating Heat Tracing Cable110–277 Vac PTC conductive-polymer parallel trace heating tape, 10–60 W/m

Q: How does a self-regulating PTC heat tracing cable adjust its output along the pipe?

Current flows between the two parallel copper bus wires through a radiation-crosslinked carbon-loaded polymer core with a positive temperature coefficient (PTC). Where pipe temperature drops, the polymer contracts microscopically and establishes more conductive carbon paths, increasing local heat output; as the pipe warms, the polymer expands and reduces power automatically.

Q: Can self-regulating heating cable be cut to length in the field and overlapped on valves?

Yes. Because the heating matrix is extruded continuously in parallel between the two bus conductors, the tape can be cut to any required length on site without altering its W/m rating. Its self-limiting PTC curve also allows single overlaps on valves, flanges and pumps without overheating.

Q: How do I choose between the LSR, MSR and HSR temperature series?

Select LSR (10–30 W/m, T6) for water freeze protection and winterisation up to +65 °C (+85 °C exposure). Choose MSR (15–45 W/m, T4) for process lines maintained up to +110 °C (+135 °C exposure). Specify HSR (15–60 W/m, T3) for lines maintained up to +150 °C or exposed to +215 °C power-off steam purging.

Q: When should I specify the fluoropolymer (-CT) outer jacket instead of polyolefin (-CR)?

The cross-linked polyolefin (-CR) overjacket is suitable for dry or aqueous outdoor piping, water lines and non-corrosive industrial environments. Specify the fluoropolymer (-CT) outer jacket whenever the cable may contact hydrocarbon spills, organic solvents, acids, alkalis or corrosive chemical vapours.

Industrial parallel self-regulating PTC conductive-polymer heat tracing cable to IEC/IEEE 60079-30-1, IEC 62395-1 and IEEE 515 across LSR (+65 °C), MSR (+110 °C) and HSR (+150 °C) series with tinned copper bus wires, earth braid and.

Flame-retardant

Oil-resistant

Outdoor & humid

Approved

Preview configuration

Order designation: 30MSR2-CT · 230 V
Output @10°C: 30 W/m
Max maintain: 110 °C
Max exposure: 135 °C
Mass ≈: 142 kg/km

All sizes (16)

Request a quote Datasheet WhatsApp

Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum

Linear output: 10–60 W/m @10°C
Maintain temp.: Up to +150 °C
Max. exposure T: +85 to +215 °C
Supply voltage: 120 / 230 Vac
Bus conductors: 2 × 1.25–2.0 mm²
Min. bend radius: 25–35 mm

Typical values for this cable type, based on IEC/IEEE 60079-30-1 & IEEE 515 — confirmed in the datasheet and quotation for your order.

Application fit

Is Self-Regulating Heat Tracing Cable right for your machine?

Cut-to-length parallel PTC heat tracing tape for freeze protection, viscosity control and process temperature maintenance up to +150 °C on pipes, valves, flanges and vessels.

Fixed installation

Suitable

Primary duty — fixed straight or spiral pipe, valve and tank surface tracing under thermal insulation.

Offshore platform & shipboard deck trays

Suitable

Fluoropolymer-jacketed (-CT) grades resist chemical splash, salt mist, oils and hydrocarbon vapours.

Furnace, kiln & high-temp zone

Not suitable

Polymeric PTC matrices are capped at +215 °C intermittent exposure; do not install above +215 °C.

Use MI Heating Cable

Motorised monospiral reel

Not suitable

Fixed trace heating tape; never run on dynamic cable reels or festoon systems.

Use (N)SHTÖU Reeling

Energy chain / drag chain

Not suitable

Flat semi-conductive PTC core is not engineered for repetitive drag-chain flexing.

Use Silicone Multi-Core

Typical machinesOil, gas & petrochemical process pipingChemical storage tanks, valves & pumpsPower generation steam-purge & condensate linesWater, wastewater & fire-sprinkler freeze protectionFood, edible-oil & pharmaceutical transfer linesLNG terminals & offshore platform winterisation

Construction

Layer by layer

Two parallel stranded tinned-copper (or nickel-plated copper on HSR) bus wires are extruded within a radiation-crosslinked semi-conductive PTC carbon-polymer heating matrix, insulated with a cross-linked polyolefin or fluoropolymer primary dielectric, screened by a ≥ 70 % tinned-copper earthing braid and protected by a polyolefin (-CR) or fluoropolymer (-CT) outer jacket.

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	Parallel tinned-copper bus wires	2 × 1.25 mm² (LSR), 1.5 mm² (MSR) or 2.0 mm² (HSR) stranded tinned / nickel-plated copper bus wiresIEC 60079-30-1 / ASTM B33
2	Self-regulating PTC conductive polymer core	Radiation-crosslinked carbon-loaded positive temperature coefficient (PTC) heating matrix extruded continuously across the bus wiresIEC 60079-30-1 / IEEE 515
3	Primary dielectric insulation jacket	Cross-linked polyolefin (LSR/MSR) or high-temperature fluoropolymer (HSR) primary electrical insulationIEC 60079-30-1
4	Tinned-copper protective earthing braid	Closely woven tinned-copper wire braid (≥ 70 % optical coverage) providing continuous earth fault path and mechanical protectionIEC 60079-30-1 Clause 4.4
5	Anti-corrosion outer overjacket	UV-stabilised cross-linked polyolefin (-CR) for aqueous/mild areas or fluoropolymer (-CT) for corrosive chemical and hydrocarbon zonesIEC 60079-30-1 / IEEE 515

LSR Series · Low Temperature (10–30 W/m @ 10 °C)

Maintain up to +65 °C · Max exposure +85 °C · 1.25 mm² SnCu bus + XLPO insulation + SnCu braid + polyolefin (-CR) or fluoropolymer (-CT) jacket

MSR Series · Medium Temperature (15–45 W/m @ 10 °C)

Maintain up to +110 °C · Max exposure +135 °C · 1.5 mm² SnCu bus + high-temp XLPO/FEP dielectric + SnCu braid + -CR / -CT outer sheath

HSR Series · High Temperature (15–60 W/m @ 10 °C)

Maintain up to +150 °C · Steam-purge exposure +215 °C (power off) · 2.0 mm² NiCu/SnCu bus + fluoropolymer dielectric + SnCu braid + fluoropolymer (-CT) sheath

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on IEC/IEEE 60079-30-1 & IEEE 515. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated supply voltage: 110–120 Vac (1-er) & 208–277 Vac (2-er)
Nominal linear power: 10, 15, 20, 25, 30, 45 & 60 W/m at +10 °C
Dielectric withstand: 2.5 kV AC for 1 min (core to earth braid)
Earth screen coverage: ≥ 70 % tinned-copper braid (< 18.2 Ω/km)

Thermal

Max. maintain temp.: LSR +65 °C · MSR +110 °C · HSR +150 °C
Max. exposure temp.: LSR +85 °C · MSR +135 °C · HSR +215 °C
Min. installation T: −40 °C (polyolefin) · −60 °C (fluoropolymer)
T-class rating: T6 (+85 °C), T4 (+135 °C) & T3 (+200 °C)

Mechanical

Bus wire cross-section: 1.25 mm² (LSR), 1.5 mm² (MSR), 2.0 mm² (HSR)
Min. bending radius: 25 mm at +20 °C · 35 mm at −40 °C (flat)
Impact & crush class: 2 J impact & 1,500 N crush per IEC 60079-30-1
Field overlapping: Safe for single-overlap on valves & flanges

Resistance

Flame retardance: IEC 60332-1-2 & IEEE 515 vertical flame
Chemicals & oils: -CT fluoropolymer resists acids, bases & oils
Moisture & ingress: IP66/IP67 when terminated with approved kits
UV & weathering: UV-stabilised outer jacket per IEC 60079-30-1

Reference standards

Design & test standards: IEC/IEEE 60079-30-1, IEC 62395-1 & IEEE 515
Conductor standard: IEC 60228 Class 2/5 & ASTM B33 / ASTM B355
Earth fault protection: 30 mA RCD / GFPD required per IEC 60079-30-2
RoHS & REACH: RoHS 2011/65/EU & REACH compliant compounds

Identification

Series colour coding: Black (LSR) · Brown/Orange (MSR) · Red (HSR)
Jacket suffix codes: -CR (polyolefin) · -CT (fluoropolymer)
Surface legend: Model, W/m @ 10 °C, Vac, T-class & metre mark
Customs tariff (HS): 8544.49 (or 8516.80 heating resistors)

Sizes

16 standard self-regulating heat tracing configurations across LSR, MSR & HSR (120 V & 230 V)

Nominal linear output at +10 °C, bus conductor size, thermal ratings, T-class, finished flat dimensions and weight.

Power ratings, temperatures & dimensions
Model designation	Thermal series	Rated Vac	Output @10°C W/m	Max maintain °C	Max exposure °C	T-class (IEC)	Bus wire mm²	Width × Thick. mm	Mass ≈ kg/km
10LSR2-CT · 230 V	LSR (Low)	230 Vac	10	65	85	T6	1.25	10.5 × 5.2	115
15LSR2-CT · 230 V	LSR (Low)	230 Vac	15	65	85	T6	1.25	10.5 × 5.2	118
20LSR2-CT · 230 V	LSR (Low)	230 Vac	20	65	85	T6	1.25	11.2 × 5.4	124
25LSR2-CT · 230 V	LSR (Low)	230 Vac	25	65	85	T6	1.25	11.2 × 5.4	126
30LSR2-CT · 230 V	LSR (Low)	230 Vac	30	65	85	T6	1.25	11.6 × 5.5	132
15LSR1-CT · 120 V	LSR (Low)	120 Vac	15	65	85	T6	1.25	10.5 × 5.2	118
25LSR1-CT · 120 V	LSR (Low)	120 Vac	25	65	85	T6	1.25	11.2 × 5.4	126
15MSR2-CT · 230 V	MSR (Medium)	230 Vac	15	110	135	T4	1.50	11.8 × 5.6	138
30MSR2-CT · 230 V	MSR (Medium)	230 Vac	30	110	135	T4	1.50	11.8 × 5.6	142
45MSR2-CT · 230 V	MSR (Medium)	230 Vac	45	110	135	T4	1.50	12.2 × 5.8	148
30MSR1-CT · 120 V	MSR (Medium)	120 Vac	30	110	135	T4	1.50	11.8 × 5.6	142
15HSR2-CT · 230 V	HSR (High)	230 Vac	15	150	215	T3	2.00	12.4 × 6.0	162
30HSR2-CT · 230 V	HSR (High)	230 Vac	30	150	215	T3	2.00	12.4 × 6.0	165
45HSR2-CT · 230 V	HSR (High)	230 Vac	45	150	215	T3	2.00	12.8 × 6.2	172
60HSR2-CT · 230 V	HSR (High)	230 Vac	60	150	215	T3	2.00	12.8 × 6.2	176
30HSR1-CT · 120 V	HSR (High)	120 Vac	30	150	215	T3	2.00	12.4 × 6.0	165

Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
Suffix -CR denotes cross-linked polyolefin outer jacket; suffix -CT denotes fluoropolymer outer jacket for chemical and hydrocarbon resistance.

Max. circuit length & Type C breaker sizing (230 Vac)
Model designation	Start-up T °C	16 A Type C max m	20 A Type C max m	25 A Type C max m	32 A Type C max m
10LSR2-CT (10 W/m)	+10 °C	150	185	200	200
10LSR2-CT (10 W/m)	−20 °C	102	128	158	182
20LSR2-CT (20 W/m)	+10 °C	92	115	135	135
20LSR2-CT (20 W/m)	−20 °C	62	78	98	122
30LSR2-CT (30 W/m)	+10 °C	64	80	100	110
30MSR2-CT (30 W/m)	+10 °C	68	85	106	120
45MSR2-CT (45 W/m)	+10 °C	46	58	72	92
30HSR2-CT (30 W/m)	+10 °C	72	90	112	135
60HSR2-CT (60 W/m)	+10 °C	36	45	56	72

Maximum circuit lengths account for cold-start inrush current and a maximum 10 % bus-wire voltage drop under IEC 60364 Type C circuit breakers with 30 mA ground-fault protection.

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.

ConductorClass 5 stranding
Spark test100 % in-line
Lay-upCores, earth, fillers
SheathingInner, braid / screen, outer
Electrical testsAC voltage, resistance
DimensionsOD, wall thickness
Inspection documents & dispatchDrum & dispatch

Testing & inspection	Test value / reference	Frequency
Routine tests
AC dielectric voltage withstand test	2.5 kV RMS AC for 1 min between bus conductors and metallic earth braid without breakdown	Every reel
Thermal output & calibration verification	Linear power output W/m verified at +10 °C reference pipe temperature within ±10 % tolerance	Every reel
Sample tests
Cold impact, crush & mandrel bend test	2 J mechanical impact and 1,500 N deformation load followed by dielectric verification	Production lot
Thermal stability & T-class ignition evaluation	Cyclic thermal aging and stabilised sheath temperature verification for T6, T4 and T3 ratings	Type qualification

Inspection certificate

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

Product approvals

IEC 60079-30-1 · IEEE 515CE · LVDRoHS · REACH

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX · [MODEL] · [W/m] @ 10°C · [120V/230V] · IEC/IEEE 60079-30-1 · [T6/T4/T3] · METRE MARK

Delivery form: Continuous bulk reels (100 m, 250 m, 500 m) or cut circuits
Lengths: Field cut-to-length at any point along the parallel bus
Certificate: EN 10204 3.1 inspection certificate with every dispatch
Quote response: Engineering specification and quote within 2 business hours

Technical documents

Downloads

PDFSelf-Regulating Heat Tracing Cable – technical datasheet16 sizes · construction, technical data, approvals XLSXSelf-Regulating Heat Tracing Cable spec data (Excel)All 16 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 a self-regulating PTC heat tracing cable adjust its output along the pipe?

Current flows between the two parallel copper bus wires through a radiation-crosslinked carbon-loaded polymer core with a positive temperature coefficient (PTC). Where pipe temperature drops, the polymer contracts microscopically and establishes more conductive carbon paths, increasing local heat output; as the pipe warms, the polymer expands and reduces power automatically.

Can self-regulating heating cable be cut to length in the field and overlapped on valves?

Yes. Because the heating matrix is extruded continuously in parallel between the two bus conductors, the tape can be cut to any required length on site without altering its W/m rating. Its self-limiting PTC curve also allows single overlaps on valves, flanges and pumps without overheating.

How do I choose between the LSR, MSR and HSR temperature series?

Select LSR (10–30 W/m, T6) for water freeze protection and winterisation up to +65 °C (+85 °C exposure). Choose MSR (15–45 W/m, T4) for process lines maintained up to +110 °C (+135 °C exposure). Specify HSR (15–60 W/m, T3) for lines maintained up to +150 °C or exposed to +215 °C power-off steam purging.

When should I specify the fluoropolymer (-CT) outer jacket instead of polyolefin (-CR)?

The cross-linked polyolefin (-CR) overjacket is suitable for dry or aqueous outdoor piping, water lines and non-corrosive industrial environments. Specify the fluoropolymer (-CT) outer jacket whenever the cable may contact hydrocarbon spills, organic solvents, acids, alkalis or corrosive chemical vapours.

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Self-Regulating Heat Tracing Cable

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Datasheet Request a quote

Self-Regulating Heat Tracing Cable110–277 Vac PTC conductive-polymer parallel trace heating tape, 10–60 W/m

Fixed installation

Offshore platform & shipboard deck trays

Furnace, kiln & high-temp zone

Motorised monospiral reel

Energy chain / drag chain

LSR Series · Low Temperature (10–30 W/m @ 10 °C)

MSR Series · Medium Temperature (15–45 W/m @ 10 °C)

HSR Series · High Temperature (15–60 W/m @ 10 °C)

Electrical

Thermal

Mechanical

Resistance

Reference standards

Identification

Inspection certificate

Product approvals

Company certificates

01Selected sizes

02Reel & motion

03Message for our engineers

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