Thermocouple and RTD Protection Heads |
| NB, HEPTX and NXT Series |
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Thermocouple Heads | Protection Heads |RTD Heads
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OMEGA offers a wide range of thermocouple heads from cast iron to Feraloy
Iron Alloy.
| Material
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Type
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Model No.
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Terminals
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Wt.
(oz)
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Threaded Openings
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Features
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Protection
Tube Entry
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Extension
Wire Entry
|
| Cast Iron
|
NB1
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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
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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
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1/2" NPT
Standard
|
1/2" NPT
w/compression
fitting for 1/8" to
1/4"O.D. wire
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* Small and Lightweight
* Good corrosion resistance
* Gasketed, weather resistant
* Burnished finish
* Safety chain on cover
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Cast
Aluminum
Body and
Cap
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NEPA
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NEPA-0
NEPA-2
NEPA-4
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0 = no terminal block
2 = single element
4 = duplex element
max. 14 gage wire
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16-1/2
17-3/4
18-1/4
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3/4" NPT
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3/4" NPT
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* 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)
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| NEPB
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NEPB-0
NEPB-2
NEPB-4
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0 = no terminal block
2 = single element
4 = duplex element
max. 14 gage wire
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21-1/2
22-3/4
23-1/4
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1/2" NPT
|
1/2" NPT
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Cast
Iron
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NSA
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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)
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| NSB
|
NSB-0
NSB-2
NSB-4
|
0 = no terminal block
2 = single element
4 = duplex element
max. 8 gage wire
|
40
44
46
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3/4" NPT
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3/4" NPT
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| NSC
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NSC-0
NSC-2
NSC-4
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0 = no terminal block
2 = single element
4 = duplex element
max. 8 gage wire
|
36
40
42
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1" NPT
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3/4" NPT
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Cast Iron
with
Aluminum
Cap
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NEP-T
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NEP-T0
NEP-T2
NEP-T4
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0 = no terminal block
2 = single element
4 = duplex element
max. 14 gage wire
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75
76
76
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1/2" NPT
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1/2" NPT
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* 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)
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Feraloy
with
Iron
Alloy
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HEP-TX
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HEP-TX-0
HEP-TX-2
HEP-TX-4
HEP-TX-70
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0 = no terminal block
2 = single element
4 = duplex element
70 = for mounting
TX70 Transmitter
max. 14 gage wire
|
62
64
64
66
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1" NPT
3/4" NPT
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1" NPT
3/4" NPT
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* 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)
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Note: NEMA 4X rated Heads Available. Please consult our Technical Quotations Department.
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† Price are shown in RMB.
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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