Chromalox Cartridge Heaters Modifications

Cartridge Heaters

Modifications & Options

Modifications & Options

Cartridge heaters can be easily specified to
meet the demands of special applications.
Simply select from a variety of standard op­tions and features to customize the heater to
your specific needs. For customized engineer­ing or alternative options, contact your Chro­malox sales representative for fast turnaround
on your specifications.

• LeadwireTypes

• EndSealOptions

• LeadOptions

• MountingOptions

• Built-InThermocouple

Leadwire Types

Operating

Temperature

Description Volts

Mica Fiberglas
Insulation

Fluoropolymer 300V

®

300V Standard
600V

600V

Seal Options

Type Description/Application

Epoxy Epoxy seal available on above

Fluoro­polymer

RTV For applications where a mois-

Hermetic Ceramic-to-metal seal is good

MR
SEOT2

leads by voiding end of sheath

and lling with epoxy to provide a

moisture barrier.
A swaged-in seal that provides

additional moisture resistance.

ture barrier is required.

for element temperatures up to
1000°F. Specify heater length
beyond the seal. Metal portion
of the seal overlaps the heater
sheath by 3/16".

Meets UL File
SEOT2.SA 12768

(°F) (°C)

842 450

392 200

Components

End Seal Temperature Limits

Operating

Temperature

Description

Air Set Cement Standard 1000 538
Epoxy Seal 194 90
Fluoropolymer Seal 392 200
RTV Seal 284

Hermetic Seal 1000 538
MR-SEOT2 374 190

End Seal Options

Hermetic Seal

Ceramic-to-metal seal is good for element
temperatures up to 1000°F. Specify heater

lengthbeyondtheseal.Metalportionofthe

seal overlaps the heater sheath by 3/16”. For
washdown conditions.

Hermetic Seal Code 8C

Lead Options

Right Angle Flexible Leads

Heat Shrink Insulation (100°C)

(°F) (°C)

140

392

200

Code 14C

Lead Options (cont’d.)

Flexible Stainless Steel Conduit

Flexible Stainless Steel Conduit provides
leadwire protection from abrasion and sharp
edges, and facilitates easier handling in harsh
environments. Available in both straight and
right angle configurations.

Right Angle
Code 15C - Standard
Code 16C - Moisture Resistant

Flexible Stainless Steel Conduit
for Abrasion Protection

Straight
Code 4C - Standard
Code 5C - Moisture Resistant

Protective Spring

Available in both straight and right angle con­figurations, the Protective Spring gives strong,
yet flexible leadwire protection from bending,
fatigue and flexing.

Right Angle
Code 18C

Protective Spring

Straight Code 3C

Heat Shrink Insulation

(100°C)

cartridge

Strain Relief

Strain Relief supports leads to reduce bending,
crimping and breakage.

Code 19C

Protective Spring Provides

a Flexible Strain Relief

to Leadwire

Heat Shrink

Insulation

(100°C)

A-95

Components

Cartridge Heaters

Modifications & Options (cont’d.)

Lead Options (cont’d.)

Metal Braid

Stainless Steel metal braid protects leadwire
from abrasion and sharp edges, yet maintains

exibilityandeaseofinstallation.Metalbraid

is available in both straight and right angle
configurations.

Code 17C Right Angle

Heat Shrink

Insulating

Beads

Insulation

(100°C)

Heat Shrink

Insulation

(100°F)

Leadwire
Crimped
to Retain
Insulation
Beads

Metal Braid Protects
Leads from Abrasive

and Sharp Surfaces

Code 13C Straight

Ceramic Beads

Ceramic Bead insulation can be specified to
protect leadwires from high ambient tempera­tures up to 1200°F (649°C). To order, specify
ceramic beads length and additional lead
length.

Code 12C

Mounting Options

Threaded Fittings

Threaded fittings allow the heater to be easily
installed into a threaded hole for immersion
applications. Available with single or double
threaded fittings. The fitting overlaps the car­tridge heater sheath by 1/4". Specify “brass”
or “stainless steel” threaded fitting.

Code 9CS Single End

Code 9CD Double End

Threaded Fitting Sizes

Nom. Heater

Diameter (In.)

1/4 1/8 - 27 7/16
3/8 1/4 - 18 9/16
1/2 3/8 - 18 11/16
5/8 1/2 - 14 7/8
3/4 3/4 - 14 1-1/16

Mounting Flange

The mounting flange option allows for easy
mounting and specific positioning of the
heater within an application.

NPT Size

(In.)

Hex Size

(In.)

Code 10C

A-96

Threaded Post Terminals

Post Terminals provide a strong, secure con­nection to buss bars or ring/fork connectors.
Available only on 5/8 and 3/4” diameter heaters.

Code 20C

1/8" Thick Stainless

Steel Mounting Flange

Wire Pull

The Wire Pull assists in heater removal.

Code 11C