BriskHeat Product Catalog - English 14th Edition RevD | Page 110

TB250N
TB250N
Product Highlights
Suitable for outdoor use
Your Heating Specialist since 1949
TB250N All-Purpose Bulb and Capillary Temperature Controller
Temperature control on heat tracing , freeze protection , and process maintenance applications
Manually set your desired temperature
Set-point dial protected within a NEMA 3R enclosure
Bulb and capillary
Three temperature range choices to fit your application
CONTROLLERS
Specifications :
• Rated 22 amps up to 277VAC
• Differential 6 ° F ( 3 ° C )
• Αverage accuracy of ± 5 ° F ( 3 ° C )
• Enclosure NEMA 3R rated , for outdoor use
• Maximum controller exposure temperatures : -40 to 160 ° F ( -40 to 71 ° C )
• Tinned copper bulb and capillary , 10 feet ( 3m ) long
• Single pole double throw ( SPDT ) contacts
Bulb Dimensions
Part
Diameter
Length
Number
Inches
mm
Inches
mm
TB250N-150
19 / 64
7.5
2 1 / 2
63.5
TB250N-250
19 / 64
7.5
2 1 / 2
63.5
TB250N-350
3 / 8
9.5
2 1 / 4
57.2
Ordering Information :
Part number Volts Amps Range TB250N-150 Up to 277 22 0 to 150 ° F TB250N-250 Up to 277 22 100 to 250 ° F TB250N-350 Up to 277 22 200 to 350 ° F
Accessories :
Part number
Description TB250N-2BW ½ ” NPT x 2.8 ” copper bulb well , for 150 & 250 TB250N-1BW ½ ” NPT x 2.3 ” copper bulb well , for 350
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