Chromalox PB402-4 installation instructions General, Installation, Chromalox, Service Reference

Chromalox®

Installation Instructions

SERVICE REFERENCE

DIVISION 4		SECTION CBH
SALES	(Supersedes PB402-3)		PB402-4
REFERENCE

161-049132-001

DATE MARCH, 1999

Type CBH Electric Stud Heater

4” Octagon Box,

3/4” Knockout

2”E

B

± 1/8”

A

± 1/4”

D

C

CBH Heater

Inserted into Standard Drill Hole

Specifications — Table A

			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.

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.

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.

© 2010 Chromalox, Inc.