Construction

1. Nickel-plated copper bus wires (14 AWG)
2. Radiation cross-linked semiconductive heating matrix
3. Radiation cross-linked dielectric insulation
4. Tinned copper braid
5. Polyolefin overjacket provides additional protection to cable and braid where exposure to aqueous inorganic chemicals is expected.
6. 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 RSX 15-2 Self-regulating heating cable

RSX 15-2 self-regulating heating cable is designed for freeze protection or process temperature maintenance applications where the watt density requirements preclude the use of the standard range of BSX cables.

The heat output of RSX 15-2 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.

RSX 15-2 cables are approved for use in ordinary (nonclassified) areas, hazardous (classified) areas, and Zone 1 and 2 classified areas.

Certifications/ Approvals

	FM Approvals Ordinary Locations Hazardous (Classified) Locations Class I, Division 2, Groups B, C and D Class II, Division 2, Groups F and G Class III, Divisions 1 and 2 Class I, Zones 1 and 2, AEx e II (requires FOJ)
	Underwriters Laboratories Inc. Ordinary Locations Hazardous (Classified) Locations Class I, Division 2, Groups A, B, C and D Class II, Division 2, Groups F and G Class III, Divisions 1 and 2

• Nominal Watt densities: 15 W/m at 10°C
• Supply voltage¹: 208-240 Vac
• Maximum maintenance temperature: 65°C
• Maximum continuous exposure temperature
  Power-off: 85°C
• Minimum installation temperature: -51°C | -60°C with outer jacker (FOJ Option)
• Minimum bend radius
  @ -15°C: 10 mm
  @ -60°C: 32 mm
• T-rating²
  RSX 15-2 FOJ: T5 100°C
  RSX 15-2 OJ: T4A 120°C

Notes:

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.

Product Type 240Vac Nominal Power Output at 10°C, W/m RSX 15-2 48

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.