HSRM
PDS HSRM
Self-Regulating
Medium
Temperature
Heating Cable
302°F
Withstands up to
420°F
• Self-Regulating, Energy
Efficient
• Process Temperature
Maintenance to 302°F
(150°C)
• Maximum Continuous
Exposure Temperature
(Power Off) 420°F
(215°C)
• Available in 5, 8,10, 15
and 20 Watts per Foot
• 120 and 208-277 Volts
Available
• Circuit Lengths to 780
Feet
• Hazardous Division 1
Locations
Cut to Any Length in Field
Can be Single Overlapped
Temperature
Self Regulating
Description
Features
Chromalox HSRM self-regulating
heating cable provides safe, reliable
heat tracing for process temperature
maintenance and freeze protection of
pipes, valves, tanks and similar
applications. Constructed of industrial
grade 14 AWG buss wire with metal
braid and overjacketing, HSRM
ensures operating integrity in
Division 1 hazardous locations. The
420°F (215°C) maximum exposure
temperature rating allows steam
cleaning of process equipment with
up to 300 PSIG steam.
• Energy Efficient - Uses less energy
when less heat is required.
• Easy to Install - Can be cut to
length in the field (up to maximum
circuit length)
• Lower Costs - Features lower
installed cost than steam tracing,
less maintenance expense, less
down time. Field splices can be
easily performed with no scrap or
wasted cold sections.
• Improved Reliability - Can be single
overlapped without burnout. This
simplifies heat tracing of in-line
process equipment such as valves,
elbows and pumps. Because cable
is self-regulating overtemperature
conditions are virtually impossible.
Enhanced Features
Industrial Grade, 14 gauge buss wire
has higher current capacity, allowing
longer circuit lengths up to 780 feet.
Superior matrix to buss wire bonding
ensures overall operating integrity and
performance. High output, 20 Watts
per foot heating cable.
®
PRECISION HEAT AND CONTROL
PH: 1-888-996-9258 • FX: 615-793-3563
Medium Temperature
Output
Maintains up to
www.chromalox.com
©
2005 Chromalox, Inc.
HSRM — Self-Regulating Medium Temperature Heating Cable
Construction
A.
Twin 14 AWG Copper Buss Wires
Provide reliable electric current capability.
B.
Semiconductive Polymer Core Matrix
“Self-Regulating” component of cable. Core’s electrical resistance varies with temperature. As process
temperature drops the core’s heat output increases; as
process temperature rises, the heat output decreases.
C.
Flouropolymer Jacket
Flame retardant, electrically insulates the matrix and
buss wires. Provides corrosion resistance.
D.
Tinned Copper Braid
Provides additional mechanical protection in any
environment. Provides positive ground path.
E.
Flouropolymer Overjacket
Corrosion resistant, flame retardant overjacket is highly
effective in most hostile, chemically active environments. It also protects against abrasion and impact
damage.
D
E
C
B
A
Approvals
FM - Factory Mutual approved for the following areas when used with Chromalox HL accessories.
Class I, Division 1
Groups B, C, D (gases, vapors)
Class II, Division 1
Groups E, F, G (combustible dust)
Class III, Division 1
(easily ignitable fibers and filings)
5 and 8 Watt rated T3C Temperature Class
10 Watt rated T3A Temperature Class
15 and 20 Watt rated T2C Temperature Class
CSA - CSA approved for the following areas when used with Chromalox HL accessories.
Class I, Division I
Groups B, C, D
Class II, Division I
Groups E, F, G
5 and 8 Watt rated T3C Temperature Class
10 Watt rated T3A Temperature Class
15 and 20 Watt rated T2C Temperature Class
Applications
•
•
•
•
2
Process Temperature Maintenance
Hydrocarbon and Chemical Product Piping
Freeze Protection of Periodically Steam-Cleaned Pipes
Fluid Flow and Viscosity Maintenance
Chromalox
®
• 1382 Heil Quaker Blvd. • LaVergne, TN 37086 • PH: 1-888-996-9258 • FX: 615-793-3563 • www.chromalox.com
HSRM — Self-Regulating Medium Temperature Heating Cable
Product Specifications
Model
Number
T-Rating
(W/ft.)
Output @ 50°F
(Vac)
Nominal Voltage
HSRM5-1CT
HSRM5-2CT
HSRM8-1CT
HSRM8-2CT
HSRM10-1CT
HSRM10-2CT
HSRM15-1CT
HSRM15-2CT
HSRM20-1CT
HSRM20-2CT
T3C
T3C
T3C
T3C
T3A
T3A
T2C
T2C
T2C
T2C
5
5
8
8
10
10
15
15
20
20
120
208-277
120
208-277
120
208-277
120
208-277
120
208-277
Thermal Output Ratings on Insulated Metal Pipe1
24
20
Heat Output (W/Ft.)
16
12
8
4
0
30
50
70
90
110
130
150
170 190
(°F)
210
230
250
270
290
300
Note 1 — Thermal output is determined per IEEE 515-1997 Standard for testing, design installation,
and maintenance of electrical resistance heat tracing section 4.1.11 Method C.
Chromalox
®
• 1382 Heil Quaker Blvd. • LaVergne, TN 37086 • PH: 1-888-996-9258 • FX: 615-793-3563 • www.chromalox.com
3
Self-Regulating Medium Temperature Heating Cable — HSRM
Output Wattage at Alternate Voltages (W/ft.) @ 50°F
Model Number
208 Volts
220 Volts
277 Volts
3.85
6.40
8.30
12.75
17.60
4.25
6.88
8.80
13.50
18.40
6.45
10.24
12.50
18.45
24.40
HSRM5-2CT
HSRM8-2CT
HSRM10-2CT
HSRM15-2CT
HSRM20-2CT
Heating Cable System Design
To determine cable rating and length of cable needed, please refer to the Chromalox Design Guide for Heat Tracing
Systems (PJ 304).
Circuit protection depends on the breaker size being used and the start-up temperature. The National Electric Code (NEC
1999) requires the use of ground fault protection breakers for heating cable. The following chart shows the maximum
circuit length for a given breaker rating. To determine the number of circuits required for each pipe, divide the total cable
length needed (as determined by using the Chromalox Design Guide for Heat Tracing - PJ 304) by the maximum circuit
length found in the chart. Round up to the next higher number.
Maximum Circuit Length (ft.) by Start-Up Temperature (°F) and Breaker Size (Amps)
50°F Start-Up
Cable
Rating
Circuit
Breaker
HSRM5-1CT
HSRM5-2CT
HSRM8-1CT
HSRM8-2CT
HSRM10-1CT
HSRM10-2CT
HSRM15-1CT
HSRM15-2CT
HSRM20-1CT
HSRM20-2CT
0°F Start-Up
-20°F Start-Up
15A
20A
30A
40A
50A
15A
20A 30A
40A
50A
15A
20A
30A
40A
50A
180
360
145
285
95
190
70
145
60
115
240
480
190
380
125
255
95
190
75
155
360
720
285
575
190
385
145
290
115
230
375
750
325
650
250
490
190
385
155
305
NR
NR
NR
NR
NR
NR
210
420
160
350
165
325
135
255
90
165
65
120
50
100
220
430
175
345
110
225
85
175
65
135
375
750
325
650
250
490
165
360
140
270
NR
NR
NR
NR
NR
NR
210
420
160
350
155
310
130
245
85
155
60
115
45
90
210
415
165
335
100
215
80
165
65
130
310
620
250
490
170
330
120
260
100
195
375
750
325
650
245
470
150
340
135
255
NR
NR
NR
NR
250
490
210
420
160
335
330
645
265
520
175
345
125
270
105
200
Thermal magnetic circuit breakers are recommended since magnetic circuit breakers could “nuisance trip” at low
temperature. NR = Not Required. Maximum circuit length has been reached in a smaller breaker size.
4
®
Chromalox
• 1382 Heil Quaker Blvd. • LaVergne, TN 37086 • PH: 1-888-996-9258 • FX: 615-793-3563 • www.chromalox.com
Self-Regulating Medium Temperature Heating Cable — HSRM
Accessories
Chromalox has a complete line of accessories specifically designed for use with HSRM cable. Use only Chromalox HL
accessories to ensure the performance and approval of your heat tracing system.
Model
Description
B121
E121
HL-PC
HL-S
HL-T
HL-ES
PS-1, 3 & 10
FT-2
AT-1
CL-1
NEMA type 7 enclosure with ambient-sensing thermostat
NEMA type 7 enclosure with bulb and capillary thermostat
HL Series connection kit to connect power to 1 cable
HL Series connection kit to connect 2 cables
HL Series connection kit to connect 3 cables
HL Series connection kit to terminate 1 cable
Pipe straps to affix thermostat, power connection, end seal, splice and tee kits to pipe.
Fiberglass tape to affix cable to pipe.
Aluminum tape to aid heat transfer.
“Electrical Heat Tracing” caution labels to warn personnel of the presence of heat tracing system.
Control Panels - Contact your Chromalox representative for information.
For Accessory ordering information refer to HL Series Connection Systems product data sheet (PJ918)
Ordering Information
Model Numbers
HSRM
“O”
“V” CT
Voltage
1 = 120 Volts
2 = 240 Volts
Output (watts)
5, 8, 10, 15 or 20 W / ft.
Example: HSRM5-1CT (D1 Self-Regulating Low-Temperature Heating Cable, 5 W/ft, 120 V)
Model Number
PCN
Model Number
PCN
HSRM5-1CT
HSRM5-2CT
HSRM8-1CT
HSRM8-2CT
HSRM10-1CT
HSRM10-2CT
382176
382168
382150
382141
382133
382125
HSRM15-1CT
HSRM15-2CT
HSRM20-1CT
HSRM20-2CT
382117
382109
382096
382088
Chromalox
®
• 1382 Heil Quaker Blvd. • LaVergne, TN 37086 • PH: 1-888-996-9258 • FX: 615-793-3563 • www.chromalox.com
5
HSRM — Self-Regulating Medium Temperature Heating Cable
PJ931-3
161-562430-001
PDS HSRM
FEBRUARY 05
6
Chromalox
®
• 1382 Heil Quaker Blvd. • LaVergne, TN 37086 • PH: 1-888-996-9258 • FX: 615-793-3563 • www.chromalox.com
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