Omega Products CAB-1002-208 User Manual

LOW

Single Row

Double Row

Triple Row

Based on 1-5/8" spacing

and 4.7 fins per linear inch

5 fps0

0.001

0.003

0.005

0.007

0.01

0.03

0.05

0.07

0.1

0.3

0.5

10 fps 15 fps 20 fps 25 fps 30 fps 35 fps

300fpm0 600 fpm 900 fpm 1200 fpm 1500 fpm 1800 fpm 2100 fpm

1.0

Pressure Drop — Inches of Water

Air Velocity (Standard Air)

TEMPERATURE

Terminal
Cover

AIR DUCT
HEATERS

CAB and CABB Styles

⻬

Side Terminals (Type CAB)

⻬ Bottom Terminals

(Type CABB)

⻬ 6 to 100 kW
⻬ 120, 208, 240 and 480V
⻬ 1 or 3 Phase
⻬ Rust-Resisting Iron or

Chrome Steel Sheath
Elements

⻬ 440°F Max Outlet Air Temp

Applications

⻬ Sole Heat Source
⻬ Booster Heater in Process and

Comfort Heating Ducts

⻬ Convert existing Forced Air

Dryers and Ovens

⻬ With Blower and Duct, can be

used to Fabricate simple
Forced Air Drying Unit

Features

Simple Duct Transition Sections may

be used to adapt standard heater sizes to
various duct sizes to increase air velocities
for better heat transfer, lower sheath
temperature and longer element life.

Field Wiring Terminals—Heavy duty
diameter bolts of either brass (iron sheath
units) or Stainless Steel (chrome steel
sheath units) with necessary hardware
are provided for field wiring connections.
Terminals are located on the side for CAB
units and on the bottom for CABB units,
and should be on the outside of ducting.

Fins of aluminized steel are provided
to improve heat transfer to the air.

Elements are individually replaceable.

Terminal Cover Option is available

to prevent accidental contact with live
electrical terminals (PCN 269720),
one (1) required per circuit

MONEL Sheath and MONEL Fins are
available for humid conditions. Model
TDH heaters, using Fintube elements
are also available.

Construction

Rugged Finstrip Elements are

mounted in a sturdy steel frame with
narrow side of elements and fins facing
the air flow.

Dimensions: in

A

11/16

1-5/32

21/32

4-1/8

CAB

2-1/4

(Typ.)

1-5/8

Stud

Length

CABB

Finstrip Elements, Exclusive
Construction—High-quality, coiled

resistor wire is uniformly spaced over the
width and length of the Finstrip element,
then em bed ded in high-grade refractory
material which insulates the wire and
transfers heat rapidly. Refractory is then
compressed to rock hardness and
maximum density under tremendous
hydraulic pressure to improve heat transfer
from coil to sheath. Elements are oven
baked at high temperatures to semi-vitrify
and mature the refractory. Sheath material

3

⁄8"

is either rust-resisting iron or chrome steel.

Sturdy Steel Frame—14 gauge cold
rolled steel painted with high heat
resisting black enamel paint.

Internal Electrical Connections are
made using a combination of buss bars
and jumper straps consisting of either
Manganese-Nickel or MONEL.

Mounting

Always install heaters in duct work with
terminal box on bottom of heater. Type
CAB units should have field wiring
terminals facing upstream to provide
maximum cooling affect. Secure to duct
work using mounting holes on both
vertical sides of heater.

Application and Selection
Guidelines

Selection Heater Size — Refer to

Technical section for examples on
determining kW requirements. For quick
estimating purposes, the following

J-7

(2) 5/16-18

Tapped Mtg.

Holes (each side)

D

4-1/2

3/4

B

4-3/16

10

4-1/8

Overtemperature Protection

AIR

AIR

AIR

3/4, 1, 1-1/4, 1-1/2,

2, 2-1/2 Combination

K.O. (each end)

High Limit

Controller
Type ARC

(shown) or

Model 2383

Thermal Cutout

Sensor Located on

Downstream Side

Mtg. Bolts (2 each side)

formula may be used for air at standard
conditions:

kW = SCFM x Temp. Rise (°F)
3000

Maximum Work Temperatures—Type
CAB and CABB heaters can generally be
used at the following maximum
temperatures, provided the minimum air
velocity is maintained uniformly through
the heater.

Air Velocity Iron Chrome Steel

(ft/sec) Sheath Sheath

4—200
9 90 330

16 220 440

Note—Maximum temperatures are

based on 26 W/In

Max Outlet Air Temp

2

. If elements have a
lower watt density, work temperatures
may be increased; if watt density is
higher, work temperatures should be
lower.

LOW TEMPERATURE
AIR DUCT HEATERS

CAB and CABB Styles

MOST POPULAR MODELS HIGHLIGHTED!

To Order (Specify Model Number)

Rust-Resisting Iron Sheath Chrome Steel Sheath
Amps/ No. No. inches Temperatures to 750°F Temperatures to 950°F Wt.
kW Volts Phase Circ. Circ. Elem.

CAB—Side Terminals (26 W/in2)

6 120 1 50 1 6 10
6 208 1 28.9 1 6 103⁄4 157⁄8 111⁄2 CAB-62/208 850 CAB-611/208 950 25
6 240 1 25 1 6 103⁄4 157⁄8 111⁄2 CAB-62/240 850 CAB-611/240 950 25
6 480 1 12.5 1 6 103⁄4 157⁄8 111⁄2 CAB-62/480 850 CAB-611/480 950 25
6 208 3 16.7 1 6 103⁄4 157⁄8 111⁄2 CAB-62/208/3P 850 CAB-611/208/3P 950 25
6 240 3 14.5 1 6 103⁄4 157⁄8 111⁄2 CAB-62/240/3P 850 CAB-611/240/3P 950 25
6 480 3 7.2 1 6 103⁄4 157⁄8 111⁄2 CAB-62/480/3P 850 CAB-611/480/3P 950 25

12 208 1 57.7 1 9 15
12 240 1 50 1 9 153⁄8 181⁄2 141⁄8 CAB-122/240 1300 CAB-1211/240 1425 35
12 480 1 25 1 9 153⁄8 181⁄2 141⁄8 CAB-122/480 1300 CAB-1211/480 1425 35
12 208 3 33.4 1 9 153⁄8 181⁄2 141⁄8 CAB-122/208/3P 1300 CAB-1211/208/3P 1425 35
12 240 3 28.9 1 9 153⁄8 181⁄2 141⁄8 CAB-122/240/3P 1300 CAB-1211/240/3P 1425 35
12 480 3 14.5 1 9 153⁄8 181⁄2 141⁄8 CAB-122/480/3P 1300 CAB-1211/480/3P 1425 35

15 208 1 72.1 1 9 15
15 240 1 62.5 1 9 153⁄8 215⁄8 171⁄4 CAB-152/240 1550 CAB-1511/240 1900 40
15 480 1 31.3 1 9 153⁄8 215⁄8 171⁄4 CAB-152/480 1550 CAB-1511/480 1900 40
15 208 3 41.7 1 9 153⁄8 215⁄8 171⁄4 CAB-152/208/3P 1550 CAB-1511/208/3P 1900 40
15 240 3 36.1 1 9 153⁄8 215⁄8 171⁄4 CAB-152/240/3P 1550 CAB-1511/240/3P 1900 40
15 480 3 18.1 1 9 153⁄8 215⁄8 171⁄4 CAB-152/480/3P 1550 CAB-1511/480/3P 1900 40

20 208 3 55.6 1 12 20
20 240 3 48.2 1 12 201⁄8 215⁄8 171⁄4 CAB-202/240 2000 CAB-2011/240 2350 55
20 480 3 24.1 1 12 201⁄8 215⁄8 171⁄4 CAB-202/480 2000 CAB-2011/480 2350 55

25 208 3 69.5 1 12 20
25 240 3 60.2 1 12 201⁄8 261⁄8 213⁄4 CAB-252/240 2350 CAB-2511/240 2850 65
25 480 3 30.1 1 12 201⁄8 261⁄8 213⁄4 CAB-252/480 2350 CAB-2511/480 2850 65

30 480 3 18.1 2 18 291⁄2 215⁄8 171⁄4 — — CAB-3011/480 $2900 75
40 208 3 55.6 2 18 29

40 240 3 48.2 2 18 291⁄2 273⁄8 23 CAB-402/240 3000 CAB-4011/240 3500 90
40 480 3 24.1 2 18 291⁄2 273⁄8 23 CAB-402/480 3000 CAB-4011/480 3500 90

50 208 3 69.5 2 18 29
50 240 3 60.2 2 18 291⁄2 331⁄8 283⁄4 CAB-502/240 3750 CAB-5011/240 4450 110
50 480 3 30.1 2 18 291⁄2 331⁄8 283⁄4 CAB-502/480 3750 CAB-5011/480 4450 110

75 208 3 69.5 3 27 44
75 240 3 60.2 3 27 447⁄16 421⁄8 373⁄4 CAB-752/240 5600 CAB-7511/240 6050 200
75 480 3 30.1 3 27 447⁄16 421⁄8 373⁄4 CAB-752/480 5600 CAB-7511/480 6050 200

100 208 3 92.6 3 27 44
100 240 3 80.3 3 27 447⁄16 471⁄2 431⁄8 CAB-1002/208 7150 CAB-10021/208 7500 220
100 480 3 40.1 3 27 447⁄16 471⁄2 431⁄8 CAB-1002/480 7150 CAB-10021/480 7500 220

CABB—Bottom Terminals (26 W/in2)

6 240 3 14.5 1 6 10
6 480 3 7.2 1 6 103⁄4 157⁄8 111⁄2 — — CABB-611/480 1050 25

12 208 3 33.4 1 9 15
12 240 3 28.9 1 9 153⁄8 181⁄2 141⁄8 — — CABB-1211/240 1550 35
12 480 3 14.5 1 9 153⁄8 181⁄2 141⁄8 — — CABB-1211/480 1550 35

20 480 3 24.1 1 12 201⁄8 215⁄8 171⁄4 — — CABB-2011/480 2550 55
25 480 3 30.1 1 12 291⁄2 261⁄8 213⁄4 CABB-252/480 $2500 CABB-2511/480 3000 65
40 480 3 24.1 2 18 291⁄2 273⁄8 23 CABB-402/480 3200 CABB-4011/480 3700 90
50 480 3 30.1 2 18 291⁄2 331⁄8 283⁄4 CABB-502/480 4100 CABB-5011/480 4650 110
75 480 3 30.1 3 27 447⁄16 421⁄8 373⁄4 CABB-752/480 6000 CABB-7511/480 6450 200

100 480 3 40.1 3 27 44

Ordering Examples: CAB-611/120, chrome steel sheath heater, 6 kW, 120V, $950.
CAB-252/480, rust-resisting iron sheath heater, 25 kW, 480V, $2350.

A B D Model No. Price Model No. Price (lb)

3

⁄4 157⁄8 111⁄2 CAB-62/120 $850 CAB-611/120 $950 25

3

⁄8 181⁄2 141⁄8 CAB-122/208 $1300 CAB-1211/208 $1425 35

3

⁄8 215⁄8 171⁄4 CAB-152/208 $1550 CAB-1511/208 $1900 40

1

⁄8 215⁄8 171⁄4 CAB-202/208 $2000 CAB-2011/208 $2350 55

1

⁄8 261⁄8 213⁄4 CAB-252/208 $2350 CAB-2511/208 $2850 65

1

⁄2 273⁄8 23 CAB-402/208 $3000 CAB-4011/208 $3500 90

1

⁄2 331⁄8 283⁄4 CAB-502/208 $3750 CAB-5011/208 $4450 110

7

⁄16 421⁄8 373⁄4 CAB-752/208 $5600 CAB-7511/208 $6050 200

7

⁄16 471⁄2 431⁄8 CAB-1002/208 $7150 CAB-10021/208 $7500 220

3

⁄4 157⁄8 111⁄2 — — CABB-611/240 $1050 25

3

⁄8 181⁄2 141⁄8 — — CABB-1211/208 1550 35

7

⁄16 471⁄2 431⁄8 — — CABB-10021/480 8000 220

J

Free Area for Air Flow

Model No. Square Feet Model No. Square Feet

CAB-62 & 611 0.500 CAB-402 & 4011 3.29 Note — The volume of air being
CAB-122 & 1211 0.927 CAB-502 & 5011 4.13
CAB-152 & 1511 1.19 CAB-752 & 7511 8.25
CAB-202 & 2011 1.63 CAB-1002 & 10021 9.38
CAB-252 & 2511 2.07

J-8

circulated along with the free
area for air flow (in table above)
will enable you to calculate the
air velocity over the heater.