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Home >> Temperature Products >> Thermowells and Head... >> Metal and Plastic Pr... >> NB, HEPTX and NXT Series

Thermocouple and RTD Protection Heads

NB, HEPTX and NXT Series   
RoHS
 
Thermocouple Heads | Protection Heads |RTD Heads
NB, HEPTX and NXT Series:Thermocouple and RTD Protection Heads
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NB1 - Cast Iron
NB2 - Burnished Die Cast Aluminum
NB4 - Miniature Aluminum
NEPA & NEPB - Explosion Resistant
NSA, NSB & NSC - Cast Iron
NEP-T - Cast Iron with Aluminum Cap Exposion Resistant
HEP-TX - Feraloy Iron Alloy

View related products - Thermowells and Head and Well Assemblies

Click to scroll below to order See Specs PDF View a printer friendly page

OMEGA offers a wide range of thermocouple heads from cast iron to Feraloy Iron Alloy.
Material Type Model No. Terminals Wt.
(oz)
Threaded Openings Features
Protection
Tube Entry
Extension
Wire Entry
Cast Iron NB1 NB1-0
NB1-2
NB1-4
0 = no terminal block
2 = single element
4 = duplex element

max. 14 gage wire
22
23
24
1/2" NPT 1/2" NPT * Rugged construction
* Screw cover with inside thread
* Moisture and dust resistant
* Ideal for outdoor use
Burnished
Die Cast
Aluminum
NB2 NB2-0
NB2-2
NB2-4
0 = no terminal block
2 = single element
4 = duplex element

max. 14 gage wire
5
6
6-1/2
1/2" NPT
Standard
1/2" NPT
w/compression
fitting for 1/8" to
1/4"O.D. wire
* Small and Lightweight
* Good corrosion resistance
* Gasketed, weather resistant
* Burnished finish
* Safety chain on cover
Cast
Aluminum
Body and
Cap
NEPA NEPA-0
NEPA-2
NEPA-4
0 = no terminal block
2 = single element
4 = duplex element

max. 14 gage wire
16-1/2
17-3/4
18-1/4
3/4" NPT 3/4" NPT * Explosion resistant head
* Rated for: Class III
 Class I, Group C, D
 Class II, Groups E, F, G
* Screw cover
* Moisture and dust resistant
* Safety Ideal for outdoor use
* Safety Utilizes barrier strip connector (optional)
NEPB NEPB-0
NEPB-2
NEPB-4
0 = no terminal block
2 = single element
4 = duplex element

max. 14 gage wire
21-1/2
22-3/4
23-1/4
1/2" NPT 1/2" NPT
Cast
Iron
NSA NSA-0
NSA-2
NSA-4
0 = no terminal block
2 = single element
4 = duplex element

max. 8 gage wire
42
46
48
1/2" NPT 3/4" NPT * Rugged construction
* Screw cover with inside thread
* Moisture and dust resistant
* Ideal for outdoor use
* Standard
 heavy duty head
* Cover equipped with safety
 chain (readily removed
 without tools)
NSB NSB-0
NSB-2
NSB-4
0 = no terminal block
2 = single element
4 = duplex element

max. 8 gage wire
40
44
46
3/4" NPT 3/4" NPT
NSC NSC-0
NSC-2
NSC-4
0 = no terminal block
2 = single element
4 = duplex element

max. 8 gage wire
36
40
42
1" NPT 3/4" NPT
Cast Iron
with
Aluminum
Cap
NEP-T NEP-T0
NEP-T2
NEP-T4
0 = no terminal block
2 = single element
4 = duplex element

max. 14 gage wire
75
76
76
1/2" NPT 1/2" NPT * Explosion resistant head
* Rated for
 Class I, Group C, D
 Class II, Groups E, F, G
 Class III
* Screw cover with inside thread
* Moisture and dust resistant
* Ideal for outdoor use
* Utilizes barrier strip
 connector (optional)
Feraloy
with
Iron
Alloy
HEP-TX HEP-TX-0
HEP-TX-2
HEP-TX-4
HEP-TX-70
0 = no terminal block
2 = single element
4 = duplex element
70 = for mounting
TX70 Transmitter
max. 14 gage wire
62
64
64
66
1" NPT
3/4" NPT
1" NPT
3/4" NPT
* Explosion resistant head
for 2-wire transmitter
* Rated for
 Class I,
 Div 1&2, Groups C, D
 Class III
Class II, Div 1
Groups E, F, G, Class III
* Moisture and dust resistant
* Ideal for outdoor use
* Utilizes barrier strip
 connector (optional)

Note: NEMA 4X rated Heads Available. Please consult our Technical Quotations Department.


To Order (Specify Model Number)    
expand list What Other People Bought: When you see this icon, click on it to expand a list of products that other people have bought when they purchased this model.
 Part Number   Availability   Price   Description RoHS   Qty.
 Cast Iron
    NB1-0 4 Weeks   1,260.00    No terminal block, protection tube entry 1/2" NPT, extension wire entry 1/2" NPT RoHS compliancy undetermined
Click to expand/minimize a list of what others bought with the NB1-2  NB1-2 In Stock   1,425.00    Single element, protection tube entry 1/2" NPT, extension wire entry 1/2" NPT RoHS compliancy undetermined
Click to expand/minimize a list of what others bought with the NB1-4  NB1-4 4 Weeks   1,505.00    Duplex element, protection tube entry 1/2" NPT, extension wire entry 1/2" NPT RoHS compliancy undetermined
 Brunished Die-Cast Aluminum
    NB2-0 4 Weeks   1,260.00    No terminal block, protection tube entry 1/2" NPT standard, extension wire entry 1/2" NPT RoHS compliant
Click to expand/minimize a list of what others bought with the NB2-2  NB2-2 In Stock   1,345.00    Single element, protection tube entry 1/2" NPT standard, extension wire entry 1/2" NPT RoHS compliant
Click to expand/minimize a list of what others bought with the NB2-4  NB2-4 In Stock   1,535.00    Duplex element, protection tube entry 1/2" NPT standard, extension wire entry 1/2" NPT RoHS compliant
 Aluminum
    NB3-0 4 Weeks   1,375.00    No terminal block, protection tube entry 1/2" NPT standard, extension wire entry 1/2" NPT RoHS compliancy undetermined
Click to expand/minimize a list of what others bought with the NB3-2  NB3-2 4 Weeks   1,505.00    Single element, protection tube entry 1/2" NPT standard, extension wire entry 1/2" NPT RoHS compliancy undetermined
    NB3-4 4 Weeks   1,635.00    Duplex element, protection tube entry 1/2" NPT standard, extension wire entry 1/2" NPT RoHS compliancy undetermined
 Aluminum - miniature head
Click to expand/minimize a list of what others bought with the NB4  NB4 In Stock   1,450.00    Duplex element, protection tube entry M10x1 (works with 1/8" NPT), extension wire entry M15x0.75 with compression fitting RoHS compliant
 Cast Aluminum Body and Cap
    NEPA-0 4 Weeks   4,570.00    No terminal block, protection tube entry 3/4" NPT, extension wire entry 3/4" NPT RoHS compliancy undetermined
    NEPA-2 4 Weeks   4,715.00    Single element, protection tube entry 3/4" NPT , extension wire entry 3/4" NPT RoHS compliancy undetermined
    NEPA-4 4 Weeks   4,860.00    Duplex element, protection tube entry 3/4" NPT, extension wire entry 3/4" NPT RoHS compliancy undetermined
 Rugged Cast Iron with Chain
    NSB-0 4 Weeks   2,740.00    No terminal block, protection tube entry 3/4" NPT, extension wire entry 3/4" NPT RoHS compliancy undetermined
Click to expand/minimize a list of what others bought with the NSB-2  NSB-2 4 Weeks   2,890.00    Single element, protection tube entry 3/4" NPT, extension wire entry 3/4" NPT RoHS compliancy undetermined
    NSB-4 4 Weeks   3,155.00    Duplex element, protection tube entry 3/4" NPT, extension wire entry 3/4" NPT RoHS compliancy undetermined
 Glass Reinforced Nylon
    NB9-2 4 Weeks   1,395.00    Single element, protection tube entry 1/2" NPT, extension wire entry 1/2" NPT RoHS compliancy undetermined
All dollar amounts on this site are shown in US currency.

 Note: Barrier strips are utilized when more than four connections are required. e.g.: dual element 3-wire RTD. Transmitter may be mounted in most heads. Transmitter may not be mounted in NB4 and only the smallest transmitters can fit the NB2 head by special order. Check transmitter dimensions identified by individual product specifications as well as the internal dimensions for the head.

   

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