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Watlow Style RB RTD Sensor with Lead Wires
Standard Industrial Insulated Leads
Watlow provides a complete line of RTDs for a wide variety of industrial and process applications. These sensors have been designed to ensure precise and repeatable measurements as well as meet the environmental requirements for the application. RTD sensors may be configured to meet your specific application need with options including, but not limited to the following: element type, lead wire configuration, termination style, sheath materials, lengths and diameters, process connection heads, transmitters, thermowells, spring loading, flanges and surface mount packages. Please call us to configure an RTD you need that is not available on this website.

Watlow's RTD platinum resistance element temperature sensors are specially designed to ensure precise and repeatable temperature versus resistance characteristics. The sensors are made with controlled purity platinum, have high purity ceramic components and are constructed in a unique strain-free maner.

Style RB RTDs have standard, insulated leads with an internal heat transfer plate for a quick time response and high accuracy. These RTDs are also epoxy sealed to resist moisture and pull out. There is a standard 260°C (500°F) potting. Style RB RTDs are constructed of 316 stainless steel for a durable, rigid sheath with temperature from -50 to 260°C (-58 to 500°F). They are manufactured in diameters from 0.125 to 0.250 inches.

To order a Watlow Style RB RTD build the desired 15-digit model part number using the ordering information form below.

Download Watlow Style RB RTD Catalog Page (pdf)

Custom Ordering Information - Watlow Style RB RTD Sensor
R B ___ ___ ___ ___ A ___ ___ ___ ___ ___ ___ ___ 0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
To order, make a selection in each category below, enter the quantity needed,
then click the "submit" button at the bottom of the page.
The part number and price will be displayed on the next page.
NOTE: Prices shown are for orders of 5 pieces or more.
There is a higher price for low quantity orders which is shown on next page.
1-2 Construction Style
RB = Standard Industrial RTD with Insulated Leads

3. Sheath Diameter (choose G, H or J)
G = 0.125 inch diameter
H = 0.188 inch diameter
J = 0.250 inch diameter

4. Lead Wire Construction Type (choose A, B , J, L, R or T)
A = Stranded glass
B = PFA or TFE stranded
J = Stranded glass with SS overbraid*
L = PFA or TFE stranded with SS overbraid*
R = Stranded glass with flex armor**
T = PFA or TFE stranded with flex armor**
* May require transition
** Requires transition

5. Fittings (choose one)- please note sheath size availability
0 = None
A = Fixed single thread 1/8 NPT 303SS - sheath sizes 0.063 to 0.250
B = Fixed single thread 1/4 NPT 303SS - sheath sizes 0.125 to 0.250
D = Fixed single thread 1/2 NPT 303SS - sheath sizes 0.125 to 0.250
F = Fixed double thread 1/2 NPT 303SS - sheath sizes 0.125 to 0.250
G = Adjustable compression TFE Gland 1/8 NPT 303SS - sheath sizes 0.063 to 0.188
H = Adjustable spring loaded double threaded 1/2NPT 316SS - sheath size 0.250
J = Non-adjustable compression 1/8 NPT brass - sheath sizes 0.125 to 0.250
L = Non-adjustable compression 1/8 NPT 303SS - sheath sizes 0.063 to 0.250
Q = Adjustable compression Lava Gland 1/8 NPT 303SS - sheath sizes 0.063 to 0.188
V = Adjustable compression Lava Gland 1/4 NPT 303SS - sheath size 0.250
W = Bayonet lockcap and spring - plated steel - sheath sizes 0.125 to 0.188
X = Adjustable compression TFE Gland 1/4 NPT 303SS - sheath size 0.250
2 = Flat weld pad - 304SS - all sheath sizes
5 = Milled slot weld pad - 304SS - all sheath sizes

6. Lead Wire Termination 200°C (choose A, B , C, J, K, L, T or U)
A = Standard male plug
B = Standard female jack
C = Standard plug with mating connector
J = Miniature male plug
K = Miniature female jack
L = Miniature plug with mating connector
T = Standard 1-1/2 inch split leads
U = 1-1/2 inch split leads with spade lugs

7. Sheath Material
A = 316SS (-58 to 500°F / -50 to 260°C)
0.125 diam = $0.16/in, 0.188 diam= $0.32/in, & 0.250 diam = $0.37/in.

8-9. Sheath Length "L" (in whole inches) - (enter two digits 02 to 36)
Tens - Ones

10. Sheath Length "L" (fractional inches) - (choose 0 or 4)
0 = 0
4 = 1/2 inch

11. Element (choose A, B, C, J, K or L)
A = 100 ohm, 2-wire single
B = 100 ohm, 3-wire single
C = 100 ohm, 4-wire single
J = 1000 ohm, 2-wire single
K = 1000 ohm, 3-wire single
L = 1000 ohm, 4-wire single

12. Temperature Coefficient (choose A or B)
A = Class A, DIN 0.00385
B = Class B, DIN 0.00385

13-14. Lead Length "E" (feet) - (enter two digits 01 to 99)
Tens - Ones

15. Special Requirements
0 = None

ENTER QUANTITY NEEDED
(Higher price applies for quantities less than 5 pieces)

This page last modified on 1/17/2023
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