Strip Heaters

Strip Heaters
Mica Insulated
U.L. Recognized-E56973
C.S.A. Certified – 016386-0-000
Applications
Dies, Cylinders, Kettles, Molds, Process Machines, Platens, Tanks, or
other applications where controlled heating is needed.
Features
• For maximum distribution, it is recommended that the strip
heaters be clamped securely to the area to be heated to prevent
distortion or unequal expansion.
STRIP
• Strip heaters may be used single or in groups to provide the
required amount of heat.
Construction
1 Post terminals.
2 Mica insulator.
3 Resistance Ribbon Wire.
4 Mica Element Support.
5 Rust Resistant Steel Sheath.
• Made in U.S.A.
Web: www.hotwatt.com
Email: [email protected]
55
Strip Heaters
Mica Insulated
▼ Manfactured Items ▼
Width:
1"
Overall Length
4"
6"
8"
12"
18"
24"
Cat. No.
ST1-4
ST1-6
ST1-8
ST1-12
ST1-18
ST1-24
Width:
11⁄2"
2"
Min.
Watts
Max.
Watts
Cat. No.
Min.
Watts
Max.
Watts
Cat. No.
50
50
50
50
50
50
100
155
230
345
520
700
ST1.5-4
ST1.5-6
ST1.5-8
ST1.5-12
ST1.5-18
ST1.5-24
50
50
50
50
50
50
150
250
340
520
790
1060
ST2-4
ST2-6
ST2-8
ST2-12
ST2-18
ST2-24
21⁄2"
3"
Min.
Watts
Max.
Watts
50
50
50
50
50
50
195
315
435
675
1035
1395
Min.
Watts
Max.
Watts
50
50
50
50
50
50
300
540
780
1250
2000
2700
4"
Overall Length
Cat. No.
Min.
Watts
Max.
Watts
Cat. No.
4"
6"
8"
12"
18"
24"
ST2.5-4
ST2.5-6
ST2.5-8
ST2.5-12
ST2.5-18
ST2.5-24
50
50
50
50
50
50
215
350
515
775
1250
1700
ST3-4
ST3-6
ST3-8
ST3-12
ST3-18
ST3-24
Min.
Watts
Max.
Watts
Cat. No.
50
50
50
50
50
50
230
400
590
940
1480
2000
ST4-4
ST4-6
ST4-8
ST4-12
ST4-18
ST4-24
STRIP
• Standard termination is Type SSA. For units under 11⁄2" wide, standard termination is Type FO.
Wattages
Tolerances
The above chart is based on a watt density of 30 watts per square
inch of surface.
Width: ±.03"
The watt density should be varied, depending on operating
temperatures in accordance with the following table.
Length: Up to 24", ±1⁄16"
24" to 48", ±1⁄8" Lengths over 48", consult factory.
Operating
Temperature
Watts/square in.
300ºF (149ºC)
400ºF (204ºC)
500ºF (260ºC)
600ºF (316ºC)
700º-900ºF (371-482ºC) (Max.)
40
30
21
12
10
To compute wattage, multiply length (less 1") x width x watts per
square inch based on above table. On units with mounting holes,
reduce by an additional 2" when computing wattage.
Thickness: .187" Nominal
Terminal Height: 3⁄4" nominal
Wattage tolerances are held to +5%, -10% at rated voltage.
Mounting Holes
Units are supplied without mounting holes. 1⁄2" x 5⁄16" mounting holes,
one each end, may be supplied if specified. Hole center is 1⁄2" from
end. Terminals are 11⁄4" from end on types SSA, SSB and SO on units
with mounting holes. Other mounting hole sizes and locations
available. Consult factory.
How To Order
Voltage
Standard voltages are either 120V or 240V. Other voltages
are available.
Specify: quantity, width, length, wattage, voltage, terminal
arrangement, mounting holes and cutouts if any. Detail cutouts, and
mounting holes (if any) on dimensional drawing.
Example: ST1.5-10/300W120V/SSA/standard mounting holes.
56
Phone: 978-777-0070
Fax: 978-774-2409
Strip Heaters
Mica Insulated
Optional Terminations
Stainless Steel Post
Up to 21⁄4" wide: 6-32 x 1" maximum, 5⁄8" on center.
21⁄4" wide and wider: 8-32 x 1" maximum, 3⁄4" on center.
Type SSA: Parallel one end.
High Temperature Insulated Leads
Type FS: Insulated leads at one end.
• Available on: 11⁄2" and wider.
• Available on: 11⁄2" and wider.
Type FO: Insulated leads at opposite ends.
• Available on: 1" and wider.
Type SSB: Tandem one end.
• Available on: 11⁄2" and wider.
Type SC: Centered post terminals.
• Available on: 11⁄2" and wider.
STRIP
Type SO: Opposite ends.
• Available on: 1" and wider.
Web: www.hotwatt.com
Email: [email protected]
57
Strip Heaters
Ceramic Insulated
U.L. Recognized-E56973
C.S.A. Certified – 016386-0-000
Applications
Dies, Molds, Plastic Forming and Sealing. Tank and Kettle Heating.
STRIP
For specific applications, correctly rated elements should be used to
prevent overheating and to ensure long life. A guide to correct watt
densities for specific applications is shown on the next page.
Features
• The Hotwatt Stainless Steel Strip Heater provides clean,
dependable heat with sheath temperatures up to 1200ºF (649ºC)
and watt densities up to 40 watts per square inch.
Construction
1 Seamless stainless steel sheath.
2 Post terminals.
3 Ceramic element support.
4 Element wire situated in close proximity to outside surface for
maximum heat transfer and minimum internal temperature
while preserving good dielectric qualities.
5
Magnesium oxide packing.
• Because of the seamless stainless steel sheath, Hotwatt Ceramic
Insulated Strip Heaters are dimensionally stable in milled slots.
• Made in U.S.A.
58
Phone: 978-777-0070
Fax: 978-774-2409
Strip Heaters
Ceramic Insulated
Standard Termination
Type OF: Offset at one end.
Application
Max. Watts/sq. in.
Water heating
40
Low viscosity
Liquid heating
▼ Manfactured Items ▼
“A”
“B”
“C”
Min.
Watts
Max.
Watts
CS-5.5
CS-7.5
CS-8
CS-9.5
CS-10.5
CS-12
CS-14
CS-15.2
CS-16.2
CS-18
CS-19.5
CS-21
CS-23.7
CS-25.5
CS-26.7
CS-28.2
CS-30
CS-30.5
CS-33.5
CS-35.7
CS-38.5
CS-42.5
CS-47.7
CS-50.5
CS-53.7
CS-63.7
51⁄2"
71⁄2"
8"
91⁄2"
101⁄2"
12"
14"
151⁄4"
161⁄4"
18"
191⁄2"
21"
233⁄4"
251⁄2"
263⁄4"
281⁄4"
30"
301⁄2"
331⁄2"
353⁄4"
381⁄2"
421⁄2"
473⁄4"
501⁄2"
533⁄4"
633⁄4"
41⁄2"
61⁄2"
7"
81⁄2"
91⁄2"
11"
13"
141⁄4"
151⁄4"
17"
181⁄2"
20"
223⁄4"
241⁄2"
253⁄4"
271⁄4"
29"
291⁄2"
321⁄2"
343⁄4"
371⁄2"
411⁄2"
463⁄4"
491⁄4"
523⁄4"
623⁄4"
1"
3"
23⁄4"
41⁄4"
51⁄4"
71⁄4"
91⁄4"
10"
11"
123⁄4"
141⁄4"
153⁄4"
181⁄2"
201⁄4"
211⁄2"
23"
243⁄4"
251⁄4"
281⁄4"
301⁄2"
331⁄4"
371⁄4"
421⁄2"
451⁄4"
481⁄2"
501⁄2"
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
75
75
75
75
75
100
100
100
100
100
100
180
360
430
510
630
810
1050
1200
1320
1530
1710
1890
2220
2430
2580
2760
2970
3030
3390
3660
3990
4320
4320
4320
4320
4320
10 - 12.5
Heavy oil heating
6.25 - 10
Semi solid heating
5 - 6.25
Platen heating
Up to 300ºF (149ºC)
300º - 600ºF (149ºC-316ºC)
600º - 800ºF (316ºC-427ºC)
40
20
15
STRIP
Cat.No.
16
Light oil heating
Formulas for Determination
of Watt Density
Watts/sq in =
Total unit wattage
C (heated length) x 3
Optional Terminations
See page 61.
• Maximum wattage limited by 18 amp maximum at 240 volts for
catalog numbers CS-42.5 and longer. Any wattage is available
between minimum and maximum without effecting price.
• Unit lengths between and longer than those listed may be
ordered.
• Standard termination is Type OF. Units under 8" long, standard
termination is SSA.
Web: www.hotwatt.com
Email: [email protected]
59
Strip Heaters
Ceramic Insulated
▼ IN STOCK ITEMS ▼
Strip Heaters – Stainless steel sheath
Supplied with: Type OF terminals, except CS-5.5, which is SSA
U.L. Recognized — E56973
STRIP
C.S.A. Certified – 016386-0-000
60
Length
51⁄2"
51⁄2"
51⁄2"
8"
8"
8"
8"
8"
8"
101⁄2"
101⁄2"
101⁄2"
12"
12"
12"
12"
12"
12"
151⁄4"
151⁄4"
151⁄4"
18"
18"
18"
18"
18"
18"
233⁄4"
233⁄4"
233⁄4"
233⁄4"
233⁄4"
30"
30"
353⁄4"
353⁄4"
Cat. No.
CS5.5
CS5.5
CS5.5
CS8
CS8
CS8
CS8
CS8
CS8
CS10.5
CS10.5
CS10.5
CS12
CS12
CS12
CS12
CS12
CS12
CS15.2
CS15.2
CS15.2
CS18
CS18
CS18
CS18
CS18
CS18
CS23.7
CS23.7
CS23.7
CS23.7
CS23.7
CS30
CS30
CS35.7
CS35.7
Wattage
40
150
150
60
80
250
250
330
330
75
300
300
125
190
500
500
750
750
125
500
500
190
310
750
750
1250
1250
250
450
1000
1000
1800
500
2000
625
2500
Voltage
120
120
240
120
120
120
240
120
240
120
120
240
120
120
120
240
120
240
120
120
240
120
120
120
240
120
240
120
120
120
240
240
120
240
120
240
Phone: 978-777-0070
Watts/in2
12
50
50
7
10
30
30
40
40
5
19
19
6
9
25
25
37
37
4
16
16
5
8
20
20
32
32
4
8
18
18
32
7
27
7
27
Weight
.37
.37
.37
.56
.56
.56
.56
.56
.56
.69
.69
.69
.81
.81
.81
.81
.81
.81
1.12
1.12
1.12
1.37
1.37
1.37
1.37
1.37
1.37
1.69
1.69
1.69
1.69
1.69
2.35
2.35
2.43
2.43
Fax: 978-774-2409
Mounting
Hole Center
41⁄2"
41⁄2"
41⁄2"
7"
7"
7"
7"
7"
7"
91⁄2"
91⁄2"
91⁄2"
11"
11"
11"
11"
11"
11"
141⁄4"
141⁄4"
141⁄4"
17"
17"
17"
17"
17"
17"
223⁄4"
223⁄4"
223⁄4"
223⁄4"
223⁄4"
29"
29"
343⁄4"
343⁄4"
Strip Heaters
Ceramic Insulated
Optional Terminations
Type SSA: Parallel at one end.
Heated length (“C”) is 3⁄4" longer
XS-84: Secondary insulating bushings. Required when units are connected in series on voltages above 300V. Sheath must be isolated.
Requires enlarged (1⁄2" or 3⁄4") mounting hole each end. May be used
with Type OF, SSA, or SO terminals.
Type SO: One each end. Heated length (“C”) is 1" shorter.
Tolerances
Width: 1.500, +.010
Length: Up to 24", ±1⁄16"
24" and over, ±1⁄8"
Type SF1: Flexible high temperature insulated leads. Specify length.
Opposite end of unit may be standard closure with mounting hole or
any of the optional closures. (Blunt end, XS54, shown.) Suitable for
use to 480V. Lead end may be sealed for moisture resistance.
Thickness: .375, ±.005
Wattage tolerances are held to +5%, -10% at rated voltage.
Voltage
How To Order
After determining the wattage required and the line voltage
available, determine the physical space available for heaters and the
number of heaters required.
Optional End Closures
XS-54: Blunt end. Welded each end with no mounting holes. May be
used with Type OF, SSA, or SO terminals. Heated length (“C”) is 3"
longer.
STRIP
Standard voltages are either 120V or 240V. Other voltages are
available.
Specify: catalog number, wattage, voltage, termination and special
features if required.
Example: CS12/250W120V/OF/XS54.
XS-83: Short crimp. At each end with no mounting holes. May be
used with Type OF, SSA, or SO terminals. Heated length (“C”) is 1"
longer.
Web: www.hotwatt.com
Email: [email protected]
61
Strip Heaters
Ceramic Insulated Finned
U.L. Recognized-E56973
C.S.A. Certified – 016386-0-000
Applications
STRIP
Air Heating, Air Ovens, Load Banks.
Construction
5
1 Seamless stainless steel sheath.
6
2 Post terminals.
3 Ceramic element support.
4 Element wire situated in close proximity to outside surface for
Magnesium oxide packing.
Aluminum fins offering maximum radiating surface and
providing for rapid heat transfer to the surrounding medium.
Stainless steel fins are available for corrosive environments.
Aluminum fins are standard.
maximum heat transfer and minimum internal temperature
while preserving good dielectric qualities.
62
Phone: 978-777-0070
Fax: 978-774-2409
Strip Heaters
Ceramic Insulated Finned
Type
of Air
ft./min.
Still
Still
Still
Max. Watts/
sq. in.
ºF
ºC
Up to 300ºF
300ºF-600ºF
600ºF-800ºF
Up to 149ºC
149ºC-316ºC
316ºC-427ºC
20
16
10
Moving
Moving
Moving
600
600
600
Up to 200ºF
200ºF-400ºF
400º-600ºF
Up to 93ºC
93ºC-204ºC
204ºC-316ºC
40
30
20
Moving
Moving
Moving
1200
1200
1200
Up to 200ºF
200º-400ºF
400º-600ºF
Up to 93ºC
93ºC-204ºC
204ºC-316ºC
50
35
25
Formulas for Determination
of Watt Density
Type OF:
▼ Manfactured Items ▼
“A”
“B”
“F”
FS-8
FS-10.5
FS-12
FS-14
FS-15.2
FS-18
FS-19.5
FS-21
FS-23.7
FS-25.5
FS-26.7
FS-30.5
FS-33.5
FS-35.7
FS-38.5
FS-42.5
8"
101⁄2"
12"
14"
151⁄4"
18"
191⁄2"
21"
233⁄4"
251⁄2"
263⁄4"
301⁄2"
331⁄2"
353⁄4"
381⁄2"
421⁄2"
7"
91⁄2"
11"
13"
141⁄4"
17"
181⁄2"
20"
223⁄4"
241⁄2"
253⁄4"
291⁄2"
321⁄2"
343⁄4"
371⁄2"
411⁄2"
31⁄4"
53⁄4"
73⁄4"
93⁄4"
101⁄2"
131⁄4"
143⁄4"
161⁄4"
19"
203⁄4"
22"
253⁄4"
283⁄4"
31"
333⁄4"
373⁄4"
50
50
50
50
50
50
50
50
50
50
50
75
75
75
100
100
Max.
Watts
475
785
1000
1300
1500
1890
2135
2360
2775
3000
3225
3780
4230
4320
4320
4320
Watts/sq.in.=
Total unit wattage
F (finned length) x 3
Optional Terminations
Type SSA: Parallel at one end. Finned length (“F”) is 3⁄4" longer.
STRIP
Cat.No.
Min.
Watts
Type SF-1: Flexible high temperature insulated leads. Specify length.
Opposite end of unit may be standard closure with mounting hole or
any of the optional closures. Suitable for use to 480V. Lead end may
be sealed for moisture resistance.
• Maximum wattage limited by 18 amp maximum at 240 volts for
catalog numbers FS-35.7 and longer. Any wattage is available
between minimum and maximum without effecting price.
• Lengths between and longer than those listed may be ordered.
Standard Termination
Type OF: Offset at one end.
Web: www.hotwatt.com
Email: [email protected]
63
Strip Heaters
Ceramic Insulated Finned
LENGTH
▼ IN STOCK ITEMS ▼
Strip Heaters – Seamless stainless steel sheath
Supplied with: Type OF terminals, aluminum fins
STRIP
U.L. Recognized-E56973
64
Length
8"
8"
8"
101⁄2"
101⁄2"
101⁄2"
12"
12"
12"
12"
12"
12"
151⁄4"
151⁄4"
151⁄4"
18"
18"
18"
18"
18"
18"
233⁄4"
233⁄4"
233⁄4"
353⁄4"
353⁄4"
Cat. No.
FS8
FS8
FS8
FS10.5
FS10.5
FS10.5
FS12
FS12
FS12
FS12
FS12
FS12
FS15.2
FS15.2
FS15.2
FS18
FS18
FS18
FS18
FS18
FS18
FS23.7
FS23.7
FS23.7
FS35.7
FS35.7
C.S.A. Certified – 016386-0-000
Wattage
100
400
400
75
300
300
125
190
500
500
750
750
125
500
500
190
310
750
750
1250
1250
250
1000
1000
625
2500
Voltage
120
120
240
120
120
240
120
120
120
240
120
240
120
120
240
120
120
120
240
120
240
120
120
240
120
240
Phone: 978-777-0070
Watts/in2
12
48
48
7
19
19
6
9
24
24
37
37
4
16
16
5
8
20
20
32
32
4
18
18
7
27
Weight
.62
.62
.62
.85
.85
.85
1.06
1.06
1.06
1.06
1.06
1.06
1.37
1.37
1.37
1.56
1.56
1.56
1.56
1.56
1.56
2.18
2.18
2.18
3.31
3.31
Fax: 978-774-2409
Mounting
Hole Center
7"
7"
7"
91⁄2"
91⁄2"
91⁄2"
11"
11"
11"
11"
11"
11"
141⁄4"
141⁄4"
141⁄4"
17"
17"
17"
17"
17"
17"
223⁄4"
223⁄4"
223⁄4"
343⁄4"
343⁄4"
Strip Heaters
Ceramic Insulated Finned
Optional End Closures
XS-54: Blunt end. Welded each end with no mounting holes. May be
used with Type OF or SSA terminals. Finned length (“F”) is 3"
longer.
XS-83: Short crimp. At each end with no mounting holes. May
be used with Type OF or SSA terminals. Finned length (“F”) is
1" longer.
XS-85: Stainless steel fins. For use in corrosive environments.
XS-84: Secondary insulating bushings. Required when units are
connected in series on voltages above 300V. Sheath must be
isolated. Requires enlarged (1⁄2" x 3⁄4") mounting hole each end. May
be used with Type OF or SSA terminals.
Tolerances
Length: Up to 24", ±1⁄16"
24" and over, ±1⁄8"
Wattage tolerances are held to +5%, -10% at rated voltage.
How To Order
After determining the wattage required and the line voltage
available, determine the physical space available for heaters and the
number of heaters required. Review stock list for in-stock items.
Review Special Features.
Strip Heaters: Special Features
SF-11: Lugs, rings, quick connect terminals attached to the end of
lead wires. Specify terminal type and size when ordering. Special
terminals are available.
• Available on:
Mica insulated strip and ceramic insulated strip and finned strip
heaters with lead wires.
STRIP
Specify: catalog number, wattage, voltage, terminal type, and
special features if applicable.
SF-12: Male dead front armored plug.
• Available on:
Mica insulated and ceramic insulated strip and finned strip heaters
with leads.
Ground wire (SF6) should be specified when using any 3 prong
plug.
SF-11A: Ring terminals. Specify size: #6, #8, #10.
SF12-P1: 2 prong/straight blade/2 pole/2wire/
UL&CSA Listed/NEMA 1-15P/125 volts/15 amps.
SF-11B: Straight quick connect terminals. Specify male or female
and size: 3⁄16" or 1⁄4".
SF12-P2: 2 prong/twist lock/2 pole/2 wire/UL Listed/
NEMA L1-15P/125 volts/15 amps.
SF12-P3: 3 prong/twist lock/2 pole/3 wire/
UL&CSA Listed/NEMA L6-15P/250 volts/15 amps.
SF-11C: Flag quick connect terminals. Specify mail or female and
size: 3⁄16" or 1⁄4".
SF12-P4: 3 prong/twist lock/2 pole/3 wire/
UL &CSA Listed/NEMA L6-20/250 volts/20 amps.
SF12-P5: 3 prong/straight blade/2 pole/3 wire/
UL&CSA Listed/NEMA 5-15P/125 volts/15 amps.
SF-11D: Spade terminals. Specify size: #6, #8, #10.
Web: www.hotwatt.com
Email: [email protected]
65