Condition Sensing Switches and Controls

Catalogs > Industrial Controls Catalog > Condition Sensing Switches and Controls > Temperature, Mechanical

Temperature, Mechanical

Introduction Standards Compliance and Certifications Introduction Technical Data Ordering Information Catalog Number Explanation
Product Selection Modifications Accessories Renewal Parts Factory Options Approximate Dimensions
Catalog Number Explanation

Note:Catalog numbers must not include blank spaces.

837 A    4    A X 5    08    X171
     a    b    c    d    e    f

a
Style of Device
Code Description
A Remote bulb and capillary
H Direct horizontal immersion
V Direct vertical immersion

b
Temperature Specifications
See Product Selection for temperature specifications.

c
Enclosure Type
Code Description
A Type 1
E Type 7 & 9 and 4 & 13
J Type 4 & 13 metallic
S Type 4X
None Without enclosure

d
Type of Bulb and Capillary
Code Description
5 Copper bulb and capillary
6 Stainless steel bulb and capillary (required for
Type 4X)
7 Copper capillary and bulb bronze armor
8 Stainless steel bulb and capillary bronze armor
9 Stainless steel bulb and capillary and armor (required for Type 4X)

e
Capillary Length
Measured in feet, from end of bellows stem to end of bulb tip

f
Modification to basic device selected from Modifications table.
Add suffix codes in descending order whenever possible.
(Optional. See Modifications.)