Chromalox PB402-4 Electric Heater User Manual


 
Chromalox
®
DIVISION
4
SECTION
CBH
SALES
REFERENCE
DATE
SERVICE REFERENCE
Installation Instructions
PB402-4
161-049132-001
MARCH, 1999
(Supersedes PB402-3)
© 2010 Chromalox, Inc.
Type CBH Electric Stud Heater
GENERAL
WARNING: This heater is not intended for use in
hazardous atmospheres where flammable vapors,
gases, liquids or other combustible atmospheres are
present as defined in the National Electrical Code.
Failure to comply can result in explosion or fire.
The Chromalox electric stud heaters are ruggedly constructed
and if properly installed, operated and maintained, will provide
long life and dependable, trouble-free service.
Since excess temperatures may permanently damage the heaters,
temperature regulating and limiting controls are recommended.
WARNING: Users should install adequate back-up
controls and safety devices with their electric heat-
ing equipment. Where the consequences of failure
may be severe, back-up controls are essential.
Although the safety of the installation is the respon-
sibility of the user, Chromalox will be glad to make
equipment recommendations.
CBH Heater
Inserted into Standard Drill Hole
INSTALLATION
WARNING: Hazard of Electric Shock. Disconnect
all power before installing heater.
1. Select the heater with the proper diameter and insertion length
closest to the size hole in the stud or bolt being heated. The
heated section must be inserted in the stud when energized.
Insert the entire heated length of heater into stud hole.
WARNING: Stud hole must not be larger for heater
being used than that shown in Table A Specifications.
A stud hole five thousandths larger than specified will
cause premature burnout or permanent damage to
heater.
2. Graphite and other lubricants to help insert the cartridge
heater into the hole are not recommended. They are electrical-
ly conductive and can contaminate the heater and shorten
heater life. Chromalox HTRC (Heat Transfer and Release
Coating) is recommended.
A B C D E Max.
Insertion Heater Heater Cold Cold Stud Hole
Model Volts Watts Length Length Diameter End End Diameter*
CBH-1815 120 1150 18” 12” 0.553” 1-1/8” 6-7/8” 0.616
CBH-2415 120 1500 24” 18” 0.553” 1-1/8” 6-7/8” 0.616
CBH-3025 120 2250 30” 24” 0.553” 1-1/8” 6-7/8” 0.616
CBH-3025 240 2250 30” 24” 0.553” 1-1/8” 6-7/8” 0.616
CBH-3625 120 2600 36” 30” 0.553” 1-1/8” 6-7/8” 0.616
CBH-3625 240 2600 36” 30” 0.553” 1-1/8” 6-7/8” 0.616
CBH-1816 120 1200 18” 12” 0.660” 1-1/8” 6-7/8” 0.735
CBH-2416 120 1700 24” 18” 0.660” 1-1/8” 6-7/8” 0.735
CBH-3026 120 2300 30” 24” 0.660” 1-1/8” 6-7/8” 0.735
CBH-3626 120 2800 36” 30” 0.660” 1-1/8” 6-7/8” 0.735
CBH-1827 120 1700 18” 12” 0.730” 1-1/4” 6-3/4” 0.860
CBH-2427 120 2500 24” 18” 0.730” 1-1/4” 6-3/4” 0.860
CBH-3647 120 4200 36” 30” 0.730” 1-1/4” 6-3/4” 0.860
CBH-3647 240 4200 36” 30” 0.730” 1-1/4” 6-3/4” 0.860
CBH-4867 240 6000 48” 42” 0.730” 1-1/4” 6-3/4” 0.860
CBH-4867 480 6000 48” 42” 0.730” 1-1/4” 6-3/4” 0.860
CBH-6177 240 7500 60” 54” 0.730” 1-1/4” 6-3/4” 0.860
CBH-2438 240 2700 24” 18” 0.855” 1-1/4” 6-3/4” 0.985
CBH-3048 120 3600 30” 24” 0.855” 1-1/4” 6-3/4” 0.985
CBH-4258 240 5300 42” 36” 0.855” 1-1/4” 6-3/4” 0.985
CBH-4258 480 5300 42” 36” 0.855” 1-1/4” 6-3/4” 0.985
CBH-4868 240 6500 48” 42” 0.855” 1-1/4” 6-3/4” 0.985
CBH-4269 240 6000 42” 36” 0.980” 1-1/4” 6-3/4” 1.110
CBH-4269 480 6000 42” 36” 0.980” 1-1/4” 6-3/4” 1.110
CBH-6189 240 8000 54” 48” 0.980” 1-1/4” 6-3/4” 1.110
CBH-6619 480 9000 66” 60” 0.980” 1-1/4” 6-3/4” 1.110
CBH-6011 480 11500 60” 54” 1.106” 1-1/4” 6-3/4” 1.236
* Stud Hole Diameter should be held closer to the heater diameter, if possible. Consult factory for use of heaters in stud hole diameters
not listed in Specifications.
Specifications — Table A
2”
E
A
± 1/4”
D
C
4” Octagon Box,
3/4” Knockout
B
± 1/8”