Thermotrace Self-Regulating Tracer – STF

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ComplianceStandards: EN 60079 – 0, IS/ IEC / EN 60079 – 30 – 1 & EN 60079 – 31
ApprovalsTested by Central Institute of Mining and Fuel Research (CSIR-CIMFR), Dhanbad and approved by Petroleum and Explosives Safety Organization ( PESO), Nagpur, India for Zone II , TI (ATEX) for Zone I / Division II & EAC for use in hazardous area applications
SafetyAs the Cable self regulates its heat output, its limit the maximum sheath temperature, thus making it burnout proof
Cost-effectiveControlled and self-regulating type provides heat when required, resulting in optimal heat utilization and save on energy cost.


Catalogue ReferenceSTF10STF15STF20STF25STF33
Heating Power W/m (230V AC) at 10oC1015202533
Voltage Supply230/240 VAC, 50/60 Hz, 110/120VAC on request
Max. Operating Temperature650C
Max. Exposure Temperature850C
Min. Installation Temperature– 650C
Minimum Bending Radius25 mm

#Thermopads reserves the right to modify the specifications in line with future improvements, updated standards or updated certifications.

STF Power Output Characteristics


Circuit Breaker Selection and Maximum Circuit Lengths

Catalog NumberOutput at 10° C, 230VMaximum Circuit LengthCircuit Breaker SizeMaximum Maintenance Temperature (°C)Maximum Exposure Temperature(°C)
STF 1010 W/m20516A65°C85°C
STF 1515 W/m20516A65°C85°C
STF 2020 W/m11616A65°C85°C
STF 2525 W/m8816A65°C85°C
STF 3333 W/m7016A65°C85°C


TYPENominal outputDimensions approx.
STF-10-AZ10W/m @ 10⁰C6.50 x 12.00 mm
STF-10-BZ10W/m @ 10⁰C6.50 x 11.20 mm
STF-10-BF10W/m @ 10⁰C5.50 x 10.20 mm
STF-15-AZ15W/m @ 10⁰C6.50 x 12.00 mm
STF-15-BZ15W/m @ 10⁰C6.50 x 11.20 mm
STF-15-BF15W/m @ 10⁰C5.50 x 10.20 mm
STF-20-AZ20W/m @ 10⁰C6.50 x 12.00 mm
STF-20-BZ20W/m @ 10⁰C6.50 x 11.20 mm
STF-20-BF20W/m @ 10⁰C5.50 x 10.20 mm
STF-25-AZ25W/m @ 10⁰C6.50 x 12.00 mm
STF-25-BZ25W/m @ 10⁰C6.50 x 11.20 mm
STF-25-BF25W/m @ 10⁰C5.50 x 10.20 mm
STF-33-AZ33W/m @ 10⁰C6.50 x 12.00 mm
STF-33-BZ33W/m @ 10⁰C6.50 x 11.20 mm
STF-33-BF33W/m @ 10⁰C5.50 x 10.20 mm


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