Data Sheet for Product

Technical Instructions GA 142 AP Analog Pressure Gauges
Document Number 155-025
April 26, 2019
Page 2 Siemens Building Technologies, Inc.
Table 2. Hole Sizes for Panel-mounted Gauges.
Gauge Size
Inches (mm)
Hole Size
Inches (mm)
Cutout used in Standard
Panel Template*
1-1/2 (38)
1-11/16 (42)
G-1
2-1/2 (64)
2-21/32 (68)
G-3
* See 155-223P25 (TB 196) for further information.
Figure 1. Dimensions for 142-0426.
Figure 2. Dimensions for Table 3.
Table 3. Dimensions in Inches (mm). See Figure 2.
Product
Number
Nominal
Size
Dimensions
Graduations
A
B
C
D
E
F
G
Major
Minor
142-0274
1-1/2"
(38)
1-13/16
(46)
1-19/32
(40)
—
3/4
(19)
1-1/8
(29)
21/32
(17)
1-1/8
(29)
5
1
142-0277
2-1/2"
(64)
2-7/8
(73)
2-5/8
(67)
7/32
(5)
1
(25)
—
7/8
(29)
2
(51)
5
1
142-0311
2-1/2"
(64)
2-23/32
(69)
2-11/16
(68)
—
1
(25)
—
7/8
(22)
—
5
1
142-0312
2-1/2"
(64)
2-23/32
(69)
2-11/16
(68)
—
1
(25)
—
7/8
(22)
—
10
2
142-0313
2-1/2"
(64)
2-23/32
(69)
2-11/16
(68)
—
1
(25)
—
7/8
(22)
—
20
5
142-0373
1-1/2"
(38)
1-5/8
(41)
1-9/16
(40)
—
7/8
(22)
—
5/8
(16)
—
5
(20)
1
(5)
142-0426
See Figure 1.