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Thermocouple and RTD Protection Heads

NB, HEPTX and NXT Series

Thermocouple Heads | Protection Heads |RTD Heads | NB, HEPTX and NXT Series

Thermocouple Heads | Protection Heads |RTD Heads

See All Models Below

RoHS
  • 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
Thermowells and Head and Well Assemblies - View related products

Description

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 OMEGA®
 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.
Place Order(Specify Model Number)

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.

Star

Most Popular Models!

Part Number/Desc.
Availability
Price
Description
Qty
RoHS
Cast Iron
  
NB1-0
Star
Availability: 1 week  
CAD29.00   
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 theNB1-2
NB1-2
Star
Availability: 1 week  
CAD32.50   
Single element, protection tube entry 1/2" NPT, extension wire entry 1/2" NPT
RoHS compliancy undetermined
  
NB1-4
Star
Availability: In Stock  
CAD35.00   
Duplex element, protection tube entry 1/2" NPT, extension wire entry 1/2" NPT
RoHS compliancy undetermined
Brunished Die-Cast Aluminum
Click to expand/minimize a list of what others bought with theNB2-0
NB2-0
Star
Availability: In Stock  
CAD29.00   
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 theNB2-2
NB2-2
Star
Availability: In Stock  
CAD32.50   
Single element, protection tube entry 1/2" NPT standard, extension wire entry 1/2" NPT
RoHS compliant
  
NB2-4
Star
Availability: 2 weeks  
CAD35.00   
Duplex element, protection tube entry 1/2" NPT standard, extension wire entry 1/2" NPT
RoHS compliant
Aluminum
  
NB3-0
Star
Availability: 1 week  
CAD31.50   
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 theNB3-2
NB3-2
Star
Availability: In Stock  
CAD35.00   
Single element, protection tube entry 1/2" NPT standard, extension wire entry 1/2" NPT
RoHS compliancy undetermined
  
NB3-4
Star
Availability: 1 week  
CAD37.50   
Duplex element, protection tube entry 1/2" NPT standard, extension wire entry 1/2" NPT
RoHS compliancy undetermined
Aluminum - miniature head
  
NB4
Star
Availability: 2 weeks  
CAD35.00   
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
Star
Availability: 2 weeks  
CAD106.00   
No terminal block, protection tube entry 3/4" NPT, extension wire entry 3/4" NPT
RoHS compliancy undetermined
  
NEPA-2
Star
Availability: 2 weeks  
CAD110.00   
Single element, protection tube entry 3/4" NPT , extension wire entry 3/4" NPT
RoHS compliancy undetermined
  
NEPA-4
Star
Availability: 2 weeks  
CAD114.00   
Duplex element, protection tube entry 3/4" NPT, extension wire entry 3/4" NPT
RoHS compliancy undetermined
Rugged Cast Iron with Chain
  
NSB-0
Star
Availability: 2 weeks  
CAD63.00   
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 theNSB-2
NSB-2
Star
Availability: 2 weeks  
CAD66.00   
Single element, protection tube entry 3/4" NPT, extension wire entry 3/4" NPT
RoHS compliancy undetermined
  
NSB-4
Star
Availability: 2 weeks  
CAD69.00   
Duplex element, protection tube entry 3/4" NPT, extension wire entry 3/4" NPT
RoHS compliancy undetermined
Glass Reinforced Nylon
  
NB9-2
Star
Availability: 1 week  
CAD32.50   
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 Canadian 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.