- A low temperature self-regulating heat tracing cable.
- Ideal for freeze protection or process temperature maintenance
- BSX cables are approved for use in ordinary (nonclassified) areas
and hazardous (classified) areas. - With braiding only for added safety
- Operating Voltage: 110-120 or 208-277 VAC
- Maximum operating temperature: 65°C
- T-Rating: T6 | T5
- Certifications/ Approval:
For a detailled quotation, please specify required W/m, optional extras & quantity in metres, below.
Construction
- Nickel-plated copper bus wires (1.3 mm²)
- Radiation cross-linked semiconductive heating matrix
- Radiation cross-linked dielectric insulation
- Tinned copper braid
- Polyolefin overjacket provides additional protection to cable and braid where exposure to aqueous inorganic chemicals is expected.
- Optional: FOJ Fluoropolymer overjacket over tinned copper braid provides additional protection to cable and braid where exposure to organic chemicals or corrosives is expected.
Applications for Thermon BSX Self-regulating heating cable
BSX self-regulating heating cables are designed to provide freeze protection or process temperature maintenance to metallic and nonmetallic piping, tanks and equipment.
The heat output of BSX cable varies in response to the surrounding conditions along the entire length of a circuit. Whenever the heat loss of the insulated pipe, tank or equipment increases (as ambient temperature drops), the heat output of the cable increases.
Conversely, when the heat loss decreases (as the ambient temperature rises or product flows), the cable reacts by reducing its heat output.
BSX cables are approved for use in ordinary (nonclassified) areas and hazardous (classified) areas in accordance with the ATEX Directive and the IECEx Scheme.
Certifications/ Approvals
Certificate FM13 ATEX 0052 in accordance with the EU ATEX Directive 94/9/EC | |
International Electrotechnical Commission IEC Certification Scheme for Explosive Atmospheres FMG 13.0020 | |
Factory Mutual Research Ordinary and Hazardous (Classified) Locations | |
Underwriters Laboratories Inc. Hazardous (Classified) Locations |
BSX has additional hazardous area approvals including:
• DNV • Lloyd's • TIIS • CCE/CSIR • GOST-R
Contact us for additional approvals and specific information.
- Available Watt densities: 9, 15, 25, 32 W/m at 10°C
- Nominal supply voltage¹: 230 Vac
- Maximum maintenance temperature: 65°C
- Maximum continuous exposure temperature
Power-off: 85°C - Minimum installation temperature: -60°C
- Minimum bend radius
@ -15°C: 10 mm
@ -60°C: 32 mm - T-rating²
9, 15, 25 W/m: T6 85°C
32 W/m: T5 100°C
Based on stabilised design³: T6 85°C
Notes:
¹ | Cable may be energised at other voltages; contact us for design assistance |
² | T-rating per internationally recognised testing agency guidelines. |
³ | Thermon heating cables are approved for the listed T-ratings using the stabilised design method. This enables the cable to operate in hazardous areas without limiting thermostats. The T-rating may be determined using CompuTrace® Electric Heat Tracing Design Software or contact us for design assistance. |
Power Output Curves
The power outputs shown apply to cable installed on insulated metallic pipe (using the procedures outlined in IEEE Standard 515) at the service voltages stated below. For use on other service voltages, contact us.
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Circuit Breaker Sizing and Type¹
Maximum circuit lengths for various circuit breaker amperages are shown below. Circuit breaker sizing and earth-fault protection should be based on applicable local codes. For information on design and performance on other voltages, contact us.
Earth-fault protection of equipment should be provided for each branch circuit supplying electric heating equipment.
Type B Circuit Breakers
230 Vac Service Voltage | Max. Circuit Length³ vs. Breaker Size (Metres) | |||
Product Type | Start-Up Temperature² °C | 16 A | 25 A | 32 A |
BSX 3-2 | 10 0 -20 -40 | 191 191 156 127 | 226 226 226 199 | 226 226 226 226 |
BSX 5-2 | 10 0 -20 -40 | 117 117 98 80 | 184 184 153 125 | 184 184 184 160 |
BSX 8-2 | 10 0 -20 -40 | 93 93 74 61 | 146 146 116 95 | 146 146 146 122 |
BSX 10-2 | 10 0 -20 -40 | 67 58 45 37 | 105 91 71 58 | 120 |
Type C Circuit Breakers
230 Vac Service Voltage | Max. Circuit Length³ vs. Breaker Size (Metres) | |||
Product Type | Start-Up Temperature² °C | 16 A | 25 A | 32 A |
BSX 3-2 | 10 0 -20 -40 | 191 191 156 127 | 226 226 226 199 | 226 226 226 226 |
BSX 5-2 | 10 0 -20 -40 | 117 117 98 80 | 184 184 153 125 | 184 184 184 160 |
BSX 8-2 | 10 0 -20 -40 | 93 93 78 64 | 146 146 122 100 | 146 146 146 128 |
BSX 10-2 | 10 0 -20 -40 | 77 75 59 48 | 120 117 92 75 | 120 |
Notes:
¹ | Maximum circuit lengths shown are based on an instantaneous trip current characteristic per IEC 60898 at the referenced start-up temperature and a 10°C maintenance temperature. For maximum circuit lengths with other trip current characteristics contact Thermon. |
² | While a heat tracing system is generally designed to keep the contents of a pipe at the desired maintain temperature, the cable may be energized at lower temperatures. For design data with lower start-up temperatures than represented above contact Thermon for design assistance.; |
³ | The maximum circuit length is for one continuous length of cable, not the sum of segments of cable. Refer to CompuTrace® design software or contact Thermon for current loading of segments. |
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