©Copyright 2006 Dwyer Instruments, Inc.
Printed in U.S.A. 10/06
FR# 76-441852-00 Rev. 3
MOUNTING
HOLE
S
(OPTIONAL)
1/2
NPT
9-7
/8
BREATHER
(OPTIONAL)
5
3/4
CONDUIT
CONNECTION
13/32
DIA.
1/4
NPT
7-3/4
3-1/2
REAR FLANGE MOUNTING HOLE
S
(3)
2-13/16
1/4
NPT
[\««1
7
DIA.
ADJU
S
TMENT
S
1/2
CONDUIT
HUB
GA
S
KETED COVER
6-9/16
7-5/8
1/4
NPT
7/8
MOUNTING
HOLE
S
(4)
10
-11
/1
6
CONDUIT
CONNECTION
S
10-13/16
DIA.
Watertight NEMA 2, 3, 4 -
Prefixed by DAW, DRW,
DSW, DLW
Explosion-Proof
Prefixed by DAE, DLE, DRE,
DSE
Explosion-Proof
Prefixed by DAH, DAHF
DRH, DSH, DSHF
Suffix
No.
-2
-3
-4
-26
-36
-54
-103
-113
-127
-152
-153
-154
-155
-156
-705
-729
-804
-815
-816
SP-ST
SP-ST
DP-ST
SP-ST
SP-ST
DP-ST
DP-ST
DP-ST
DP-ST
SP-DT
SP-DT
2 Circuits
1 Circuit
1 Circuit
2 Circuit
SP-DT
SP-DT
SP-ST
SP-DT
ST-ST
DP-DT
Code
A
A
B
A*
A*
B
A
A*
A
B
B
B
B
A
B
A
B
A
B
B
B
Circuit Response to
Pressure Increase
Opens
Closes
Closes
Closes
Opens
Opens
Closes
Closes
Opens
One Closes as Other Opens
One Closes as Other Opens
Close
Opens
Closes
Open
One Closes as Other Opens
One Opens as Other Closes
Closes
One Closes as Other Opens
Opens
Two Close
Two Open
4P-ST Close (2) 9-67
4P-ST Open (2) 9-67
MERCOID DIVISION
DWYER INSTRUMENTS, INC.
P.O. BOX 258 • MICHIGAN CITY, INDIANA 46361 U.S.A.
Phone: 219/879-8000
www.dwyer-inst.com
Fax: 219/872-9057
e-mail: [email protected]
Circuit
Bulletin IN-0118
Page 4
Code
A
B
C
Circuit
Suffix
-2, -3
-153
-2, -3
-2, -3
120V.
10A.
4A.
5A.
0.3A.
AC Capacity
240V.
5A.
2A.
2A.
0.15A.
440V.
3A.
1
*
NA.
NA
120V.
10A.
4A.
2-1/2A.
0.15A.
240V.
5A.
2A.
1A.
0.07A.
AC
3/4
1/8
1/8
NA
DC
1/3
NA
1/10
NA
DC Capacity
Horsepower
Circuit Chart
Electrical Rating Chart
*Consult Factory
IN-0118 10/24/06 1:35 PM Page 4
