Self-Regulating Medium Temperature/ Enhanced Heating
PDS ing CableMaintains up to420 FCut to Any Length in Field Self-Regulating, Energy Efficient 14 AWG Buss Wire Circuit Lengths to 780 Feet Process TemperatureMaintenance to 302 F (150 C) Maximum ExposureTemperature (Power Off)420 F (215 C) Industrial ProcessMaintenance Applications Industrial FreezeProtection ApplicationsCan be Single Overlapped 3, 5, 8, 10, 15 and 20 Wattsper Foot 120 and 208-277 VoltsAvailable From StockSelf RegulatingFeaturesChromalox SRM/E self-regulatingheating cable provides safe, reliableheat tracing for process temperaturemaintenance and freeze protection ofpipes, valves, tanks and similar applications. Constructed of industrialgrade 14 AWG buss wire with metalbraid and optional overjacketing,SRM/E ensures operating integrity inmost hostile industrial environments.The 420 F (215 C) maximum exposuretemperature rating allows steamcleaning of process equipment withup to 300 PSIG steam. Energy efficient, self-regulatingSRM/E uses less energy when lessheat is required. Easy to install, SRM/E can be cut toany length (up to maximum circuitlength) in the field. Field splices can be performedeasily in minutes with no scrap orwasted cold sections. With lower installed cost than steamtracing, SRM/E features less maintenance expense and down time. SRM/E can be single overlappedwithout burnout, which simplifiesheat tracing of in-line processequipment such as valves, elbowsand pumps. Because SRM/E is self-regulating,overtemperature conditions arevirtually impossible. Chromalox termination, splice,tee and end seal kits reduceinstallation time. UL listed for use on fire protectionsystem piping Industrial Grade, 14 gauge busswire has higher current capacity,allowing longer circuit lengths upto 780 feet. Superior matrix to buss wirebonding ensures overall operatingintegrity and performance. High output, 20 Watts per footheating cable. All ratings are available from stock. Steam Cleanable On ProcessEquipment Up to 300 PSIGTemperatureMedium TemperatureDescriptionEnhanced Features Freeze Protection of FireProtection System PipingOutput302 FWithstands up to PRECISION HEAT AND CONTROLPH: 1-888-996-9258 FX: 615-793-3563www.chromalox.com 2004 Chromalox, Inc.
SRM/E — Self-Regulating Medium Temperature/Enhanced Heating CableConstructionTwin 14 AWG Copper Buss Wires . Provide reliable electrical currentcapability.Semiconductive PolymerCore Matrix . “Self-Regulating” component of thecable, its electrical resistance varies withtemperature. As process temperaturedrops, the core’s heat output increases;as process temperature rises, the heatoutput decreases.High TemperatureFluoropolymer Jacket . Flame retardant, electrically insulatesthe buss wires and matrix, and providescorrosion resistance.Metallic Braid . Provides additional mechanical protectionin any environment, and a positive groundpath.High TemperatureFluoropolymer Overjacket . Corrosion resistant, flame retardant(Optional)overjacket is highly effective in mosthostile, chemically active environments.It also protects against abrasion andimpact damage.ApprovalsFM - Factory Mutual approved for ordinary areas.UL Listed, CSA Certified for ordinary areas.UL Listed for fire protection system pipingFM approved for hazardous (classified) areas whenused with Chromalox accessories: Class I, Div. 2, Groups B, C, D (gases, vapors) Class II, Div. 2, Groups F, G (combustible dust) Class III, Div. 2 (easily ignitable fibers and filings) 3, 5 and 8 Watt rated T3 Temperature Class 10,15 and 20 Watt rated T2D Temperature ClassCSA Certified for hazardous (classified) areas whenused with Chromalox accessories: Class I, Div. 2, Groups A, B, C, D Class II, Div. 2, Groups F, G Temperature Class T3**Exception: Cable surface temperature shall not exceed190 C in Class II, Div. 2, Group F; 165 C in Class II,Div. 2, Group G.Applications 2Process Temperature MaintenanceHydrocarbon and Chemical Product PipingFreeze Protection of Periodically Steam-Cleaned PipesFreeze Protection of Fire Protection System PipingFluid Flow and Viscosity MaintenanceChromalox 1382 Heil Quaker Blvd. LaVergne, TN 37086 PH: 1-800-443-2640 FX: 615-793-3563 www.chromalox.com
Self-Regulating Medium Temperature/Enhanced Heating Cable — SRM/EHeating Cable System Design1. Calculate Heat LossUsing the Chromalox Design Guide (PJ304) for Heat Tracing, calculate the heat loss of the system. To calculate theheat loss (Watts) you will need to know pipe diameter, insulation type and thickness, minimum ambient temperatureand the pipe maintenance temperature.2. Select Cable RatingAfter calculating the heat loss in the pipe and adjusting for any application deviations, you may determine which cablerating to choose. Using the SRM/E Thermal Output Ratings graph, select the lowest cable rating that will provide theoutput required to offset the heat-loss at the desired maintenance temperature. Adjust the cable output for line voltageif necessary. Consult output wattage at alternative voltage table on page 5.Thermal Output Ratings On Insulated Metal Pipe24Cable Output vs.Temperature2020 W/Ft.Heat Output (W/Ft.)1615 W/Ft.1210 W/Ft.88 W/Ft.5 W/Ft.43 W/Ft.030Chromalox507090110130150 170 190Pipe Temperature ( F)210230250270 1382 Heil Quaker Blvd. LaVergne, TN 37086 PH: 1-800-443-2640 FX: 615-793-3563 www.chromalox.com2903103
SRM/E — Self-Regulating Medium Temperature/Enhanced Heating CableSpecificationsOutput @ 50 F(W/Ft.)NominalVoltage(Vac)Maximum Circuit Length*(Ft.)SRM/E 3 -1CSRM/E 3 -2C33120240385780SRM/E 5 -1CSRM/E 5 -2C55120240375750SRM/E 8 -1CSRM/E 8 -2C88120240325600SRM/E 10 -1CSRM/E 10 -2C1010120240250490SRM/E 15 -1CSRM/E 15 -2C1515120240210420Cable RatingsModel NumberSRM/E 20 -1C20120SRM/E 20 -2C20240*See chart on page 4 for maximum circuit lengths by start-up temperature and circuit breaker size.160350Output Wattage at Alternate Voltages (50 F) W/Ft.Cable RatingSRM/E 3SRM/E 5SRM/E 8SRM/E 10SRM/E 15SRM/E 20208 Volts2.313.856.408.3012.7517.60220 Volts2.554.256.888.8013.5018.40277 Volts3.906.4510.2412.5018.4524.40Model NumbersSRM/E8-1CTOvercoat OptionsT Fluoropolymer corrosionresistant overjacket over braidfor hostile/corrosive environmentsBraidC Standard tinned-copper metallic braid for ground pathVoltage1 120 Volts2 208-277 VoltsOutput (watts)3, 5, 8, 10, 15 or 20 Watts per FootSRM/ESelf-Regulating, Medium Temperature/Enhanced Heating Cable4Chromalox 1382 Heil Quaker Blvd. LaVergne, TN 37086 PH: 1-800-443-2640 FX: 615-793-3563 www.chromalox.com
Self-Regulating Medium Temperature/Enhanced Heating Cable — SRM/ESpecificationsOutput @ 50 F(W/Ft.)NominalVoltage(Vac)Maximum Circuit Length*(Ft.)SRM/E 3 -1CSRM/E 3 -2C33120240385780SRM/E 5 -1CSRM/E 5 -2C55120240375750SRM/E 8 -1CSRM/E 8 -2C88120240325600SRM/E 10 -1CSRM/E 10 -2C1010120240250490SRM/E 15 -1CSRM/E 15 -2C1515120240210420Cable RatingsModel NumberSRM/E 20 -1C20120SRM/E 20 -2C20240*See chart on page 4 for maximum circuit lengths by start-up temperature and circuit breaker size.160350Output Wattage at Alternate Voltages (50 F) W/Ft.Cable RatingSRM/E 3SRM/E 5SRM/E 8SRM/E 10SRM/E 15SRM/E 20208 Volts2.313.856.408.3012.7517.60220 Volts2.554.256.888.8013.5018.40277 Volts3.906.4510.2412.5018.4524.40Model NumbersSRM/E8-1CTOvercoat OptionsT Fluoropolymer corrosionresistant overjacket over braidfor hostile/corrosive environmentsBraidC Standard tinned-copper metallic braid for ground pathVoltage1 120 Volts2 208-277 VoltsOutput (watts)3, 5, 8, 10, 15 or 20 Watts per FootSRM/ESelf-Regulating, Medium Temperature/Enhanced Heating CableChromalox 1382 Heil Quaker Blvd. LaVergne, TN 37086 PH: 1-800-443-2640 FX: 615-793-3563 www.chromalox.com5
SRM/E — Self-Regulating Medium Temperature/Enhanced Heating CableOrdering InformationOutput(W/Ft.)Voltage3120SRM/E 3-1 CSRM/E 3-1 CT388025388033208-277SRM/E 3-2 CSRM/E 3-2 CT388050388068120SRM/E 5-1 CSRM/E 5-1 CT388084388092208-277SRM/E 5-2 CSRM/E 5-2 CT388113388121120SRM/E 8-1 CSRM/E 8-1 CT388148388156208-277SRM/E 8-2 CSRM/E 8-2 10120SRM/E 10-1 CSRM/E 10-1 CT388201388210208-277SRM/E 10-2 CSRM/E 10-2 CT388236388244120SRM/E 15-1 CSRM/E 15-1 CT388260388279208-277SRM/E 15-2 CSRM/E 15-2 CT388308388316120SRM/E 20-1 CSRM/E 20-1 CT388332388340208-277SRM/E 20-2 CSRM/E 20-2 CT3883673883751520ModelNumberPCNTo Order: Specify length, Model Number, PCN and Installation Accessories.AccessoriesChromalox has a complete line of accessories specifically designed for use with SRM/E cable. Use only Chromaloxaccessories to ensure the performance of the heat trace system.ModelRTASThermostatDescriptionDL Series air-sensing thermostat with Microswitch for local control of circuit.DL Series pipewall-sensing thermostat with Microswitch for local control of circuit.DL Series power connection set kit.DL Series splice and tee set kit.DL Series end seal kit.RTBCPower ConnectionRTPCRTSTRTESPipe StrapsPS-1, PS-3, PS-10Pipe straps to affix thermostat and power connection splice kits topipes.Fiberglass TapeFT-2Tape to affix cable to pipe, 66' roll x 1/2", install on 12" centers.Aluminum TapeAT-1Tape to aid heat transfer, 180 foot roll.Apply over cable along entire length of circuit.Caution LabelsCL-1“Electrical Heat Tracing” caution labels, 5 per package.Install every 10 feet.Control PanelsContact your Chromalox representative for Control Panel information.Note: For PCN's, refer to the DL Series connection system accessories product data sheet.PJ314-5PDS SRM/EAPRIL 046Chromalox 1382 Heil Quaker Blvd. LaVergne, TN 37086 PH: 1-800-443-2640 FX: 615-793-3563 www.chromalox.com
installation time. UL listed for use on fire protection system piping Description Chromalox SRM/E self-regulating heating cable provides safe, reliable heat tracing for process temperature maintenance and freeze protection of pipes, valves, tanks and similar appli-cations. Co
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