Omega CSH4 Specification

Strip Heaters

Channel Strip Heaters

Ceramic Insulated

l A Reliable Heat Source

with Seamless Stainless Steel Sheath

l

Flat Surface Mounting Installations

l Used in Hundreds of Industrial and Commercial

Heating Applications

Typical Applications

l Ovens
l Hot Plates
l Dies
l Molds
l Drying
l Melting
l Baking
l Incubators
l Platens
l Food Warmers
l Welding Preheating
l Air Heating
l Sealing Bars
l Thermoforming
l Tank Heating

F

E

D

A

Type 304 Stainless Steel sheath provides the best

A

combination of physical strength and resistance to high
temperatures and chemical corrosion. Dependable at sheath
temperatures of up to 650°C (1200°F).

Stainless Steel 10-32 threaded screws are standard and

B

are securely fastened. Various termination configurations

and options are available.

Specially selected and designed ceramic insulator

C

houses the resistance wire coil, insulating it from the
outer sheath.

Helically wound resistance wire coil made from nickel-

D

chrome wire is evenly stretched and precisely strung
through the ceramic insulator, providing uniform heat.
Resistance wire is then mechanically connected to screw
terminals or lead wires for a strong positive joint.

B

C

A custom mixture of several high purity magnesium oxide

E

grain sizes, chosen to increase thermal conductivity and
dielectric strength, are used to fill all remaining space inside
and around the ceramic insulator. Voids are densely packed.

Channel strip heaters are available with or without

F

mounting tabs. If without, the ends are silver soldered
shut to prevent moisture and contaminants from entering the
heater. Tabs are not available on 6.35 thick x 16 mm wide

5

⁄

(¼ x

8") heaters.

To order, call 1-800-826-6342 or shop online at omega.com

SM

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Strip Heaters

Channel Strip Heaters

Ceramic Insulated

Channel Strip Heaters have proven to be extremely efficient
and dependable as a heat source for surface heating in
hundreds of industrial and commercial applications. The
rectangular tube gives full surface contact when used in a
milled slot to provide maximum heat transfer area.

For surface mounting installations, channel strip heaters
must be securely clamped along their entire length to a
smooth metal surface. When supported by mounting tabs,
the terminal end should be secured firmly. Opposite end
should be loose to allow for thermal expansion.

PERFORMANCE RATINGS

Maximum Sheath Temperature: 650°C (1200°F)
Nominal Watt Density: 20 Watts/in
Maximum Watt Density: 45 Watts/in

parameters)

ELECTRICAL SPECIFICATIONS

Maximum Voltage: 480 Vac (dependent on design

parameters)

Maximum Recommended Voltage with Leads: 480V
Maximum Amperage:

Lead Wire Termination: 10 amp
Screw Terminations: 10-32UNF—25 amp

Resistance Tolerance: 10%, -5%
Wattage Tolerance: 5%, -10%

PHYSICAL SIZE CONSTRUCTION LIMITATIONS

Width:

16 mm (
25 mm and 38 mm (1 and 1
+0.000, -0.010"

Thickness:
6 mm (

8 and 10 mm (
[10 mm (

Length:
Up to 24": ±
Over 24": ±

Mounting Slot Size: Standard 8 x 13 mm (
Special Bushings: 13 x 16 mm (

5

⁄

8") Wide Heaters: +0.000, -0.005"

1

⁄

4") Thick Heaters: +0.000, –0.005"

5

3

⁄

⁄

16 and

3

⁄

8") thick heaters have radius corners]

1

⁄

16"

1

⁄

8 "

8") Thick Heaters: +0.000, –0.008"

2

(3.1 Watts/cm2)

2

(dependent on design

1

⁄

2") Wide Heaters:

5

1

⁄

⁄

16 ×

1

⁄

2 ×

5

⁄

8")

2")

OMEGA Offers Channel Strip Heaters in Four
Rectangular Sizes

5

1

⁄

16 W x 6 mm thick (
Available without mounting tabs only.

25 W x 8 mm thick (1" x
Available with or without mounting tabs. When
supplied with Type L lead wire termination, mounting
tabs are not available.

38 W x 8 mm thick (1
Available with or without mounting tabs. When
supplied with Type L lead wire termination,
mounting tabs are not available.

38 W x 10 mm thick (1
Available with or without mounting tabs. When supplied
with Type L lead wire termination, mounting tabs are not
available. [10 mm (

⁄

8" x

4").

5

⁄

16").

1

5

⁄

⁄

2" x

16").

1

3

⁄

⁄

2" x

8").

3

⁄

8") thick heaters have radius corners]

2

Standard Specifications and Tolerances of Channel
Strip Heaters If tighter tolerances are required,
consult OMEGA.

To order, call 1-800-826-6342 or shop online at omega.com

SM

Strip Heaters

Channel Strip Heaters

Screw Terminal Terminations

1

Type T1 10-32 Screw Terminals at each end Available on 25 and 38 mm (1 and 1

With Mounting TabsNo Mounting Tabs

Type T2 10-32 Screw Terminals (Tandem) at one end Available on 25 and 38 mm (1 and 1

⁄

2") wide heaters

1

⁄

2

") wide heaters

With Mounting TabsNo Mounting Tabs

Type T3 10-32 Screw Terminals (Parallel) at one end Available on 38 mm (1

With Mounting TabsNo Mounting Tabs

Type T4 10-32 Terminals offset at one end Available on 38 mm (1

1

⁄

2 ") wide heaters only

1

⁄

2") wide heaters only

With Mounting TabsNo Mounting Tabs

Height

To order, call 1-800-826-6342 or shop online at omega.com

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Channel Strip Heaters

Lead Wire Terminations

Type L

Type L

Flexible lead wires exit from end of heater. 254 mm (10")
long leads standard; if longer leads are required, specify.
Recommended only for tight quarters or where flexibility of
the lead wire is required. Not available on heaters with tabs.

Maximum Amps: 10 at 240 Vac Maximum Volts: 480

Type L1

Flexible lead wires exit from top of heater. 254 mm (10")
long leads standard; if longer leads are required, specify.

Maximum Amps: 10 at 240 Vac Maximum Volts: 480

Type W1

Strip Heaters

With Mounting TabsNo Mounting Tabs

13/16"

3/4"

Type W1

Wire braid provides strength and protection to the lead wire
insulation, offering sharp bending not possible with armor
cable. 254 mm (10") of wire braid over 12" long leads is
standard; if longer leads or braid are required, specify.

Maximum Amps: 10 at 240 Vac Maximum Volts: 480

13/16"

1/2"

1-3/4"

Type L1

Type W2

Stainless steel braid over each lead wire offers sharp
bending not possible with armor cable, as well as abrasion
protection. 254 mm (10") long leads standard; if longer leads
are required, specify. Not available on heaters with tabs.

Maximum Amps: 10 at 240 Vac Maximum Volts: 480

Type R1

Armor cable provides strength and prevents contamination
from getting into the heater. 254 mm (10") of armor over
305 mm (12") long leads are standard; if longer leads or armor
are required, please specify.

Maximum Amps: 10 at 240 Vac Maximum Volts: 480

Type R1A: Galvanized cable Type R2A: Stainless steel cable

With Mounting TabsNo Mounting Tabs

Type W2

4

With Mounting TabsNo Mounting Tabs

Type R1

To order, call 1-800-826-6342 or shop online at omega.com

SM

Strip Heaters

Channel Strip Heaters

Lead Wire Terminations

Type R2

Type R2

Right-angle armor cable prevents contamination from
getting into the heater. 254 mm (10") of armor over 305 mm
(12") long leads is standard; if longer leads or armor are
required, please specify.

Maximum Amps: 10 at 240 Vac Maximum Volts: 480

Type R2A Galvanized cable
Type R2B Stainless steel cable
Type R2C Elbow and leads only (no cable)

No Mounting Tabs

Terminal Protection

Type P

High-Temperature Quick Disconnect Plug. If armor
protected lead wires are required, specify armor
and lead length. Available on 38 mm (1

Maximum Amps: 10 at 240 Vac Maximum Volts: 250

Type P1A Cup only (UT900)
Type P1B Cup and straight plug (H900)
Type P1C Cup and 90° plug (HW900)
Type P1D Cup, straight plug and galvanized cable
Type P1G Cup, 90° plug and galvanized cable

1

⁄

2") wide heaters only.

With Mounting Tabs

Type P

No Mounting Tabs (type P1D)

2-7/8"

1-7/16"

No Mounting Tabs (type P1G)

Caution: Exposed electrical wiring on Strip Heaters is a violation of electrical safety codes, including O.S.H.A.

3"

3/4"

With Mounting Tabs (type P1D)

2-7/8"

1-7/16"

With Mounting Tabs (type P1G)

3"

1/2"

1-3/4"

To order, call 1-800-826-6342 or shop online at omega.com

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2-1/2" 1-1/8"

Channel Strip Heaters

Terminal Protection

Strip Heaters

Type C

Type C

1

Terminal box has a 13 mm (
(actual diameter 22 mm (

⁄

2") trade size knockout

7

⁄

8"). Box provides excellent

protection to exposed terminals. If armor-protected
lead wires are required, specify armor and lead length.
Available on 25 and 38 mm (1 and 1

1

⁄

2") wide heaters.

Type CA No cable or braid
Type CB Galvanized cable
Type CC Stainless steel cable
Type CD Wire braid

2-1/2"

No Mounting Tabs

Type MP

2-1/2" 1/8"

1/8"

1-7/8"

1-7/8"

With Mounting Tabs

1/2"

1-7/8"

Type MP

Specially designed box is welded to the Channel Strip
Heater and potted with epoxy. The ends of the heater are
also welded. Leads exit through a 1/2 NPT nut that can be
located at the top or in the front of the box. Armor cable
can be supplied with the male fitting, providing a completely
sealed channel strip. Available on 38 mm (1

1

⁄2") wide

heaters only.

254 mm (10") long leads standard; if longer leads are
required, specify.

Maximum Amps: 25 Maximum Volts: 480

Ceramic Covers for Insulating Terminals

Igloo™ Ceramic terminal covers consist of two individual ceramic parts. With a tight-fitting cap and a solid
base, an Igloo cover will fully insulate any standard 10-32 terminal lug used for electrical wiring hookups.
Igloo covers can be assembled on all Channel Strip heaters with Type 1 and Type 4 screw terminals.

Type C6
Double Port In-Line
Part Number: CER-101-104

Three different types of Igloo
bases are available for your
wiring convenience. Double
Port In-Line, Double Port 90°
and Single Port.

When ordering, specify the
type of Igloo.

6

Ceramic Cap

Thread 10-32
Part Number
CER-102-101

To order, call 1-800-826-6342 or shop online at omega.com

Type C7
Double Port 90°
Part Number: CER-101-106

Type C8
Single Port
Part Number:
CER-101-107

SM

Strip Heaters

Channel Strip

38.1 × 7.94 mm (1½ ×

5

⁄

16")

Part numbers shown are for heaters with T2 Terminals and
Mounting Tabs.

To Order Visit omega.com/csh4_series for Pricing and Details

Model No.

120V 240V inch mm
CSH00317 CSH00320
CSH00189 CSH00190
CSH00342 CSH00343
CSH00322 CSH00325
CSH00191 CSH00192
CSH00193 CSH00194
CSH00195 CSH00196
CSH00197 CSH00198
CSH00327 CSH00331
CSH00199 CSH00200

— CSH00201
CSH00202 CSH00203
CSH00204 —
CSH00205 CSH00206
CSH00207 CSH00208
CSH00209 CSH00210
CSH00211 —

— CSH00212
— CSH00213
— CSH00214
— CSH00215
— CSH00216
— CSH00217

Length Watt Density

Watt/in

2

Watt/cm

6
8
8
8

1

⁄2266.7

10

12
14

7

⁄8454.2

17

1

⁄2495.3

19

3

⁄4603.3

23

1

⁄2647.7

25

1

⁄4743.0

29

1

⁄2850.9

33

5

⁄8879.5

34

7

⁄8911.2

35

1

⁄4946.2

37

1

⁄2977.9

38

7

⁄81368.6

53

7

⁄81368.6

53

7

⁄81622.6

63

7

⁄81622.6

63

7

⁄81825.8

71

7

⁄81825.8

71

Wattage

152.4

203.2

203.2

203.2

150 21 3
150 13 2
250 21 3
500 42 7
250 12 2

304.8

355.6

350 13 2
500 15 2
750 16 2

1200 23 4

750 11 2
500 7 1
750 8 1

750 7 1
1000 9 1
1000 9 1
1500 13 2

800 7 1
1500 8 1
2500 14 2
1800 8 1
3000 14 2
2000 8 1
3000 12 2

2

Part numbers shown are for heaters with T1 Terminals
and Mounting Tabs.

Model No. Length Watt Density

120V 240V inch mm

CSH00316 CSH00583
CSH00218 CSH00219
CSH00220 CSH00221
CSH00222 CSH00223
CSH00224 CSH00225
CSH00226 CSH00227
CSH00228 CSH00229
CSH00230 CSH00231
CSH00345 CSH00528
CSH00232 CSH00233
CSH00234 CSH00235
CSH00236 CSH00237
CSH00238 CSH00239
CSH00240 CSH00241
CSH00242 CSH00243
CSH00244 CSH00245
CSH00246 CSH00247
CSH00248 CSH00249
CSH00250 CSH00251
CSH00252 CSH00253
CSH00326 CSH00330
CSH00254 CSH00255

6 152.4 150 21 3
8 203.2 150 14 2

8 203.2 250 23 4
91⁄2241.3 200 12 2
91⁄2241.3 300 18 3

101⁄2266.7 250 13 2

12 304.8 250 10 2
12 304.8 500 20 3
12 304.8 350 12 2
14 355.6 300 9 1
14 355.6 500 15 2

151⁄4387.4 325 9 1
151⁄4387.4 500 13 2
177⁄8454.2 375 8 1
177⁄8454.2 500 11 2
177⁄8454.2 750 16 2
177⁄8454.2 1000 21 3
191⁄2495.3 500 10 1
191⁄2495.3 750 14 2
191⁄2495.3 1000 19 3
191⁄2495.3 1200 23 4

21 533.4 500 9 1

Wattage Watt/in2Watt/cm

Part numbers shown are for heaters with T1 Terminals
and Mounting Tabs.

Model No. Length Watt Density

2

120V 240V inch mm

CSH00256 CSH00257
CSH00258 CSH00259
CSH00260 CSH00261
CSH00262 CSH00263
CSH00264 CSH00265
CSH00266 CSH00267
CSH00268 CSH00269
CSH00270 CSH00271
CSH00272 CSH00273
CSH00347 CSH00348
CSH00274 CSH00275
CSH00276 CSH00277
CSH00278 CSH00279
CSH00280 CSH00281
CSH00282 CSH00283
CSH00284 CSH00285
CSH00286 CSH00287
CSH00288 CSH00289
CSH00290 CSH00291
CSH00292 CSH00293

3

⁄4603.3 250 4 1

23

3

⁄4603.3 500 7 1

23

3

⁄4603.3 750 11 2

23

3

⁄4603.3 1000 15 2

23

3

⁄4603.3 1500 22 3

23

1

⁄2647.7 750 10 2

25

1

⁄2647.7 1000 13 2

25

3

⁄4679.5 700 9 1

26

3

⁄4679.5 750 10 1

26

1

⁄4742.0 750 8 1

29

7

⁄8758.8 750 8 1

29

1

⁄2774.7 750 8 1

30

1

⁄2850.9 750 7 1

33

1

⁄2850.9 1000 10 2

33

5

⁄8879.5 1000 9 1

34

7

⁄8911.4 1000 9 1

35

1

⁄4946.2 1500 13 2

37

1

⁄2977.9 1000 8 1

38

1

⁄21079.5 1250 9 1

42

1

⁄21079.5 1500 11 2

42

Wattage Watt/in2Watt/cm

2

To order, call 1-800-826-6342 or shop online at omega.com

SM

7