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L404A
D
F
L604A
L
M
SPECIFICATIONS
I
I
I
Switching
Midscale
Subtractive
Differential
a
Maximum
Surge
Action
on
Pressure
Rise
Operating
Ranges
a
Adjustable
Pressure
Model
to
Setpoint
psi
kglem2
kPa
psi
kgfcm2
kPa
psi
kglem2
kPa
L404A
spst
breaks
2to
15b
c
14to1
0
14
to
103
2to6
14
to
41
14to4
35
345
circuit
5
to
50
35
to
3 5
34
to
345
4
to
12
28
to
82
127
to
83
85
6
0
586
10
to
150b
66
to
10
6 69
to
1034
8
to
16
56
to
1
10
55
to
110 225
15 8
1550
20
to
300d
14
to
21
0
138
to
2068
15
to
40
1
04
to
2
76
103
to
276
500
35
2
3445
I
A04
8
i
spst
makes
2
to
15d
c
e
f
14
to
11
14
to
103
2to6
14
to
41
14
to
41
35
345
circuit
5
to
50
35
to
35
24
to
345
4
to
12
28
to
82
27
to
83
85
6
0
586
10
to
150e
b
66
to
10
6
69
to
1034
8
to
16
56
to
1
10
55
to
110 225
15
8
1550
20
to
300d
14
to
21
0
138
to
2068
15
to
40
1
04
to
2
76
103
to
276 500
35
2
3445
I
A04C
spst
breaks
2
to
15
14 to
1
0
14
to
103
manual
reset
35
345
circuit
5
to
50
35
to
35
34
to
345
fixed
subtractive
differential
85 6
0
586
10
to
150
66
to
10
6
69
to
1034
225
15
8
1550
20
to
300d
1
4
to
21
0
138
to
2068
500
35
2
3445
lA04D
spst
makes
2
to
15
14 to
1
0
14
to
103
manual
reset
g
35
345
circuit
10
to
150
66
to
10 69
to
1068
fixed
subtractive
differential
225
15 8 1550
lA04F
spdt
snaR
acting
2
to
15
14 to
1
0
14
to
103
2to6
14 to
41
14
to
41
35
345
switch
makes
5
to
50i
35to
3 5
34
to
345
6
to
14
41
to
97 41
to
97
85
60
586
R
W
breaks
R B
10
to
150
66
to
10
69
to
1034
10
to
22 69
to
15
2
60
to
152
225
15 8
1550
20
to
300d
14
to21
0
138
to
2068
20
to
50
1
4
to
3
5 138
to
345 500
35
2
3445
L604A
2
isolated
spst
2
to15C
14 to
1
0
14
to
103
2to6
14
to
41 14
to
41
25
1
8
172
circuits
or
1 5
to
50
35
to
3 5
34
to
345
to
12
28
to
82 27
to
83
85
6
0
586
spdt
makes
R1
10
to
150
66
to
10
69
to
1034
8
to
16
56
to
1
10
55
to
110 225
15 8 1550
W
breaks
R2
B
20
to
300d
1
4
to21
0
138
to
2068
15
to
40 1
04
to
2
76
103
to
276 500
35
2
3445
L604L
spdt
circuit
2
to
15
14
to
1
0
14
to
103
manual
reset
g 25
1
8
172
makes
R
W
fixed
subtractive
differential
breaks
R B
L604M
spdt
circuit
10
to
150
66
to
10
1
69
to
1034
fixed
3 5
psi
24
1
kPa
225
15 8
1550
makesR
W
breaks
R
B
TABLE
1
MODELS
A
V
All
ABLE
a
Scaleplates
are
marked
in
both
psi
and
kglcm2
b
Model
available
with
special
fixed
low
differential
Switch
rated
for
O
5A
at
120
Vac
C
L404A
B
and L604A
models
are
available
with
1
to
6
psi
midscale
subtractive
differential
in
2
to
15
psi
models
d
Brass
bellows
replaces
stainless
steel
diaphragm
Not
suitable
for
use
with
ammonia
oxygen
or
other
corrosive materials
e
Model
available
with
minimum
operating
pressure
of
1
25
psi
0 09
kglcm2
or
8
62
kPa
and
minimum
subtractive
differential
of
0
5
psi
0
035
kglcm2
or
3
45
kPa
f
Model
available
with
special
fixed
low
differential
Switch
rated
for
0
5A
at
120
Vac
g
L404C
D
and
L604L
models
are
designated
as
Manual
Reset
2
controllers
the
trip
free
reset
mechanism
does
not
permit
the
controller
to
function
as
an
automatic
reset
device
when
the
manual
reset
lever
is
held
in
the
reset
position
The
subtractive
differential
is
fixed
at
the
minimum
value
of
the
adjustable
differential
of
the
L404A
for
each
corresponding
operating
range
h
L404F
only
all
other
models
have
mercury
switches
Model
available
with
sealed
bell
crank
adjustment
J
Spst
switches
operate
in
unison
spdt
action
when
jumper
is
installed
between
Rl
and
R2
k
Also
recommended
for
supervision
of
atomizing
medium
pressure
air
or
steam
in
an
oil
burner
system
I
I
Model
Load
120
Vae
240
Vac
120
V
de
240
V
de
L404A
Full
Load
8
0
51
4
1
2
Locked
Rotor
48
0
30
6
24
0
12
0
Norimductiv
10
0
50
5
0
20
L604A
Lb
Full
Load
8
0 5
1
2 0
10
Locked
Rotor
48
0
30
6
20
0
10
0
Noninductive
10
0
5 0 8 0
4
0
L604M
Full
Load
1
0
05 1
0
05
SWITCH
CONTACT
RATING
in
amperes
at
50 60
Hz
a
L404F
snap
acting
does
not
have
non
inductive
or
dc
ratings
b
L6
4A
and
L
have
also
been
tested
and
listed
by
Underwriters
Laboratories
Inc
and
breaking
not
making
a
load
with
a
total
ratmg
of
9
8
A full
load
plus
360
VA
ignition
plus
250
VA
pilot
duty
at
120
Vac
1
flO
21
50
1
0