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AT-04052B page 2 of 2

Operation

A Murphy SWICHGAGE

®

* constantly monitors 

pressure, level, temperature or load. Adjustable high
and low contacts on SWICHGAGE

®

are set slightly

above and below desired operating point. When
demand changes, pointer touches appropriate high
or low contact and signals speed change. 
AT03069 controller responds only so long as con-
tact is made. The controller stops immediately when
contacts separate. Slow, smooth action prevents
“hunting” or “surging” on normal applications. 

*

Mercury tube or snap-action switches are not suitable for this
type control. For more information, recommendations and 
quotations contact our engineering dept.

How to Order

AT03069

3-3/4 in.

(95 mm)

12-1/4 in.

(311 mm)

5-1/8 in.

(130 mm)

5-7/8 in.

(149 mm)

3-5/8 in.

(92 mm)

4-3/4 in.

(121 mm)

7/8 in.

(22 mm)

5-1/2 in.

(140 mm)

15 in.

(381 mm)

6-3/4 in.

(171 mm)

Dimensions

Typical Wiring

1

Battery

AT03069

SWICHGAGE

®

2

3

4

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]

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

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 SWITCH OF CALIFORNIA

41343 12th Street West
Palmdale, California 93551-1442; USA
+1 661 272 4700  

fax

+1 661 947 7570

e-mail

[email protected]

www.murphyswitch.com

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.

MACQUARRIE CORPORATION

1620 Hume Highway
Campbellfield, Vic 3061; Australia 
+61 3 9358 5555  

fax

+61 3 9358 5558

e-mail

[email protected] 

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

R

E

G ISTERE

D

USA–ISO 9001:2000 FM 28221

UK–ISO 9001:2000 FM 29422

Printed in U.S.A.

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