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Bulletin AT-95026B page 4 of 4

How to Order

To order, use the diagram below. List options in ascending alphabetical order (A-Z). Example: 

A20T-B1-250-4. 

Range

††

Base Model

A20T
A20TL
A20TO
A20TE
A20TABS
A20TB
A20TH

____ – ____ – ____ – ____ – ____

Single scale (°C)

70C   

= 0-70°C

100C   

= 45-100°C

120C   

= 50-120°C

140C   

= 60-140°C

160C   

= 70-160°C

Dual scale (°F/°C)

°F

°C

120   

= 32-120

0-49

160   

= 32-160

0-71

220   

= 130-220

54-104

250   

= 130-250

60-121

300   

= 140-300

60-149

320   

= 160-320

71-160

350   

= 180-350

82-177

440   

= 300-440

149-227

Temperature Capillary Armor Type 

and Length

Capillary Armor Type
Blank 

= PVC armor, copper capillary

= Stainless steel armor, copper capillary

Capillary Length (specify after capillary type;
example: “S4”)

= 4 ft. (1.2 m)

Specify other length =

Available in 2 ft. increments

thru 20 ft.; 5 ft. increments above 20 ft. (0.5 m.
increments from 1.5–10 m.; 2 m. increments thru
34 m. 

Specify “M” following length, i.e. 1.5M.

)

A20TG
A25T
A25TL
A25TE
A25TABS
A25TH
A25TG

††

Consult factory for availability of dials other than °F/°C. Select scale 

so your normal operating temperature is in the upper half of the scale.

Options

B1 

= Black bezel

EX 

= Explosion-proof (CSA Listed for 

Class I, Div. 1, Groups C & D)

*

EL 

= Explosion-proof less case

HL 

= High and low contacts

= Knob adjusting face contact

OS 

= Oil sealed (Silicone Oil)

UA 

= Temperature bulb style “A” (10-05-0166)

UB 

= Temperature bulb style “B” (10-01-0061)

UC 

= Temperature bulb style “C” (10-01-0060)

UD 

= Temperature bulb style “D” (10-00-0286)

UE 

= Temperature bulb style “E” (10-01-0084)

UF 

= Temperature bulb style “F” (10-00-0577)

UG 

= Temperature bulb style “G” (10-00-0578)

UH 

= Temperature bulb style “H” (10-00-2466)

UJ 

= Temperature bulb style J (10051153)

UK 

= Temperature bulb style K (10054886)

Options not available on all models or configurations.

*

A25TE-EX only is CSA listed for hazardous locations.

**

This option is not covered by the CE mark.

Illumination – Order Separately

A20 Series:

Clamp Lite Assembly; 12 V= 05702176; 24 V= 05702177

A25 Series:  

N/A.

Adapter Nuts

†††

Metric

M10   

=  10 mm x 1.5

M12   

=  12 mm x 1.5

M14   

=  14 mm x 1.5

M16   

=  16 mm x 1.5

M18   

= 18 mm x 1.5

M20   

= 20 mm x 1.5

M22   

= 22 mm x 1.5

M24   

= 24 mm x 1.5

1/8   

= 1/8-27 NPT

1/4   

= 1/4-18 NPT

3/8   

= 3/8-18 NPT

3/8B   

= 3/8-19 BSPT

3/8K   

= 3/8 NPSF

= 1/2-14 NPT

††††

1/2B   

= 1/2-BSPT

1/2K   

= 1/2 NPSF

5/8   

= 5/8-18 UNF

3/4   

= 3/4-14 NPT

3/4U   

= 3/4-16 UNF

7/8   

= 7/8-9 UNC

†††

Specific adapter nut must 

match the sensing bulb. 

††††

Standard.

Warranty

A limited warranty on materials and workmanship is given with
this FW Murphy product. A copy of the warranty may be viewed
or printed by going to www.fwmurphy.com/support/warranty.htm

CONTROL SYSTEMS & SERVICES DIVISION

P.O. Box 1819; Rosenberg, Texas 77471; USA
+1 281 633 4500  fax +1 281 633 4588 

e-mail

[email protected]

INDUSTRIAL PANEL DIVISION

P.O. Box 470248
Tulsa, Oklahoma 74147 USA 
+1 918 317 4100  

fax

+1 918 317 4266  

e-mail

[email protected]

FRANK W. MURPHY, LTD.

Church Rd.; Laverstock, Salisbury SP1 1QZ; U.K.
+44 1722 410055  fax +44 1722 410088  

e-mail

[email protected]

www.fwmurphy.co.uk

MURPHY DE MEXICO, S.A. DE C.V.

Blvd. Antonio Rocha Cordero 300, Fracción del Aguaje 
San Luis Potosí, S.L.P.; México 78384 
+52 444 8206264  fax +52 444 8206336
Villahermosa 52 993 3162117

e-mail

[email protected]

www.murphymex.com.mx

In order to consistently bring you the highest quality, full featured products, we reserve the right to change our specifications and designs at any time.

FW Murphy

P.O. Box 470248
Tulsa, Oklahoma 74147 USA 
+1 918 317 4100  

fax

+1 918 317 4266  

e-mail

[email protected]

www.

fwmurphy

.com

Printed in U.S.A.

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