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Industrial Thermocouples - Protection Head Design
NB - ICIN / ICSS / CAIN / CASS / CXIN / CXSS / CPIN / CPSS

NB1, Cast Iron

NB2, Aluminium

NB3, Aluminum with Snap-Lock

NB4, Sub-Miniature Aluminum


NB1 Cast Iron Protection Head with Internal Terminal Block
NB2 Miniature Aluminum Head with Internal Terminal Block
NB3 Aluminum Head with Convenient Snap-Lock Design with Internal Terminal Block
NB4 Sub-Miniature Aluminum Head with Internal Terminal Block
1/2" NPT Mounting Thread
12" Length Standard 
Made with Special Limits of Error Material
The industrial style assemblies offer a variety of protection heads to meet the environmental and size requirements of most applications. Available in J, K T or E calibrations, with either 304SS, 321SS or Inconel sheathing. Standard lengths are 12" including 1/2" for the pipe thread, with other lengths available. Both the thread on the probe and the extension wire opening are 1/2" NPT. The NB2 and NB4 include a compression fitting nut and rubber ferrule for 1/8" to 1/4" O.D. wires or tubing. The internal terminal block is standard on all models. Consult Technical Quotation Dept. for price and delivery on a wide variety of non-metallic and other specialized heads.

Thermocouple Alloy
Sheath
Dia.
Model No.
12" Length
Model No.
18" length
Model No.
24" length
Iron-Constantan
Inconel
Sheath
J
1/16"
NB(*)-ICIN-116(**)-12
NB(*)-ICIN-116(**)-18
NB(*)-ICIN-116(**)-24
1/8"
NB(*)-ICIN-18(**)-12
NB(*)-ICIN-18(**)-18
NB(*)-ICIN-18(**)-24
3/16"
NB(*)-ICIN-316(**)-12
NB(*)-ICIN-316(**)-18
NB(*)-ICIN-316(**)-24
1/4"
NB(*)-ICIN-14(**)-12
NB(*)-ICIN-14(**)-18
NB(*)-ICIN-14(**)-24
Iron-Constantan
304 SS
Sheath
J
1/16"
NB(*)-ICSS-116(**)-12
NB(*)-ICSS-116(**)-18
NB(*)-ICSS-116(**)-24
1/8"
NB(*)-ICSS-18(**)-12
NB(*)-ICSS-18(**)-18
NB(*)-ICSS-18(**)-24
3/16"
NB(*)-ICSS-316(**)-12
NB(*)-ICSS-316(**)-18
NB(*)-ICSS-316(**)-24
1/4"
NB(*)-ICSS-14(**)-12
NB(*)-ICSS-14(**)-18
NB(*)-ICSS-14(**)-24
CHROMEGA®
ALOMEGA®
Inconel
Sheath
K
1/16"
NB(*)-CAIN-116(**)-12
NB(*)-CAIN-116(**)-18
NB(*)-CAIN-116(**)-24
1/8"
NB(*)-CAIN-18(**)-12
NB(*)-CAIN-18(**)-18
NB(*)-CAIN-18(**)-24
3/16"
NB(*)-CAIN-316(**)-12
NB(*)-CAIN-316(**)-18
NB(*)-CAIN-316(**)-24
1/4"
NB(*)-CAIN-14(**)-12
NB(*)-CAIN-14(**)-18
NB(*)-CAIN-14(**)-24
CHROMEGA®-
ALOMEGA
®
304 SS
Sheath
K
1/16"
NB(*)-CASS-116(**)-12
NB(*)-CASS-116(**)-18
NB(*)-CASS-116(**)-24
1/8"
NB(*)-CASS-18(**)-12
NB(*)-CASS-18(**)-18
NB(*)-CASS-18(**)-24
3/16"
NB(*)-CASS-316(**)-12
NB(*)-CASS-316(**)-18
NB(*)-CASS-316(**)-24
1/4"
NB(*)-CASS-14(**)-12
NB(*)-CASS-14(**)-18
NB(*)-CASS-14(**)-24
CHROMEGA®-
Constantan

Inconel
Sheath
E
1/16"
NB(*)-CXIN-116(**)-12
NB(*)-CXIN-116(**)-18
NB(*)-CXIN-116(**)-24
1/8"
NB(*)-CXIN-18(**)-12
NB(*)-CXIN-18(**)-18
NB(*)-CXIN-18(**)-24
3/16"
NB(*)-CXIN-316(**)-12
NB(*)-CXIN-316(**)-18
NB(*)-CXIN-316(**)-24
1/4"
NB(*)-CXIN-14(**)-12
NB(*)-CXIN-14(**)-18
NB(*)-CXIN-14(**)-24
CHROMEGA®-
Constantan

304 SS
Sheath
E
1/16"
NB(*)-CXSS-116(**)-12
NB(*)-CXSS-116(**)-18
NB(*)-CXSS-116(**)-24
1/8"
NB(*)-CXSS-18(**)-12
NB(*)-CXSS-18(**)-18
NB(*)-CXSS-18(**)-24
3/16"
NB(*)-CXSS-316(**)-12
NB(*)-CXSS-316(**)-18
NB(*)-CXSS-316(**)-24
1/4"
NB(*)-CXSS-14(**)-12
NB(*)-CXSS-14(**)-18
NB(*)-CXSS-14(**)-24
Copper-
Constantan
Inconel
Sheath
T
1/16"
NB(*)-CPIN-116(**)-12
NB(*)-CPIN-116(**)-18
NB(*)-CPIN-116(**)-24
1/8"
NB(*)-CPIN-18(**)-12
NB(*)-CPIN-18(**)-18
NB(*)-CPIN-18(**)-24
3/16"
NB(*)-CPIN-316(**)-12
NB(*)-CPIN-316(**)-18
NB(*)-CPIN-316(**)-24
1/4"
NB(*)-CPIN-14(**)-12
NB(*)-CPIN-14(**)-18
NB(*)-CPIN-14(**)-24
Copper-
Constantan
304 SS
Sheath
T
1/16"
NB(*)-CPSS-116(**)-12
NB(*)-CPSS-116(**)-18
NB(*)-CPSS-116(**)-24
1/8"
NB(*)-CPSS-18(**)-12
NB(*)-CPSS-18(**)-18
NB(*)-CPSS-18(**)-24
3/16"
NB(*)-CPSS-316(**)-12
NB(*)-CPSS-316(**)-18
NB(*)-CPSS-316(**)-24
1/4"
NB(*)-CPSS-14(**)-12
NB(*)-CPSS-14(**)-18
NB(*)-CPSS-14(**)-24
*Specify protection head: 1 (NB1 cast iron), 2 (aluminum), 3 (aluminum with snap-lock) or 4 (subminiature aluminum)
**Specify junction type: E (Exposed), G (Grounded) or U (Ungrounded)




To Order (Specify Model Number, see variations below in partnumber builder table)    
 Part Number   Availability   Price    Description    Qty.
 NB1-ICSS-14U-12 in-stock    $49.00     12" ungrounded probe, type J, 304 SS sheath 1/4 " sheath diameter  
 NB1-CPSS-316E-12 1 Week    $43.00     12" exposed probe, type T, 304 SS sheath, 3/16 " sheath diameter  
 NB2-ICSS-18G-12 in-stock    $42.00     12" grounded probe, type J, 304 SS sheath, 1/8 " sheath diameter  
 NB2-ICIN-316G-12 in-stock    $43.00     12" grounded probe, type J, inconel sheath, 3/16 " sheath diameter  
 NB3-ICSS-116G-12 in-stock    $42.00     12" grounded probe, type J, 304 SS sheath, 1/16 " sheath diameter  
 NB3-CAIN-18E-12 in-stock    $42.00     12" exposed probe, type K, inconel sheath, 1/8 " sheath diameter  
 NB4-CXSS-14U-12 1 Week    $49.00     12" ungrounded probe, type E, 304 SS sheath, 1/4 " sheath diameter  
 NB4-CPIN-116G-12 1 Week    $42.00     12" grounded probe, type T, inconel sheath, 1/16 " sheath diameter  
 
All dollar amounts on this site are shown in US currency.

 Note: Other lengths available, consult Sales Department.
To order 321 stainless steel sheath, change “SS” in model number to “321SS” and call Sales Dept. No additional charge.PFA Coating is available, 400°F (204°C) Max.
 Ordering Example: (1) NB3-ICSS-116G-12 12" grounded probe, type J, 1/16 " sheath diameter, $42 + 1.55 = $42
 Part Number Builder
(1) (2) (3) (4)
NB - - -12
Option Descriptions
(1) Thermocouple Head Type
  Select
1 for Type NB1
2 for Type NB2
3 for Type NB3
4 for Type NB4
(2) Thermocouple Type
  Select
ICIN for Type J inconel
ICSS for Type J 304 stainless steel
CAIN for Type K inconel sheath
CASS for Type K 304 stainless steel
CXIN for Type E inconel sheath
CXSS for Type E 304 stainless steel
CPIN for Type T inconel sheath
CPSS for Type T 304 stainless steel
(3) Sheath Diameter
  Select
116 for 1/16 inch
18 for 1/8 inch
316 for 3/16 inch
14 for 1/4 inch
(4) Thermocouple Junction
  Select
G for Grounded
U for Ungrounded
E for Exposed
 NOTE: All combinations may not be valid, check spec sheet for valid part numbers.


   

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