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Sensing and Control
Honeywell Inc.
11 West Spring Street
Freeport, Illinois 61032
Basic Switches
Subminiature
CUT-A-WAY SM SUBMINIATURE BASIC SWITCH
SM Series
FEATURES
Low operating force to 2 ounces
maximum
Sensitive differential travel as low as
.001 inch (0,025 mm) maximum
Power load switching capability
available to 11 amps (VAC) – silver
contacts
Motor load handling capacity to 1/4
hp (VAC)
Optional gold contacts for low energy
applications
Optional bifurcated gold contacts for
maximum reliability
Long mechanical life
– 11SM Series 10,000,000
operations
– 1SM/41SM Series 80,000
operations
– Bifurcated contacts 1,000,000
operations
All at 95% survival
Standard temperature range
−65°
to
+185°F
(−54 to 85°C)
High temperature construction
available for use to
+400°F
(204°C)
for 100 hours
Variety of integral and auxiliary
actuators
Choice of several terminal styles
Military Standard construction
available with three listings on the
MIL-S-8805 qualified products list
UL recognized File #E12252, CSA
certified File #LR41372
AVAILABLE TERMINALS
Various terminals are available for most
listings. These include: the T and T2 for
wrap-around soldering of leadwires; sol-
der terminals for solder connections; H58
terminals and H4 series terminals provide
easy quick-connect installation; H2 type,
round wire wrap or PC terminals; H6 rect-
angular wire wrap terminals are also avail-
able. Other quick-connect terminals of
the Series H types are available. Contact
the 800 number for ordering information.
T
GENERAL INFORMATION
SM subminiature switches are slightly
larger than the SX switches. These
switches combine small size and light
weight with ample electrical capacity, pre-
cision operation and long life. Unless oth-
erwise noted, all listings have silver con-
tacts.
SOLDER
T2
Mounting Torque:
2.3 inch pounds max.
H4
H58
H2
Mates with Amp Inc. Part
No. 640024-1 Std.
Dimensions shown are for reference only
This section covers only
38
of our most popular SM Series catalog listings. If you don’t find what you’re looking for, it’s
likely one of the approximately
500
other active SM listings will meet your needs. Contact the 800 number.
26
Honeywell Sensing and Control
For application help: call 1-800-537-6945.
Basic Switches
Subminiature
SM Series
Characteristics:
O.F. — Operating Force; R.F. — Release
Force; P — Pretravel; O.T. — Overtravel; D.T. —
.T.
Differential Travel; O.P — Operating Position.
.
ORDER GUIDE by ascending electrical capability
PIN PLUNGERS
Catalog
Listing
11SM1077-T
12SM604-T
11SM23-T
12SM4-T
11SM701-T
11SM1-T
11SM3-T
Dim. Dwg. Fig. 1
Recommended For
Gold alloy contacts
Bifurcated gold contacts,
reduced rating
Application requiring gold
contacts
Best reliability
(Bifurcated gold contacts)
Lower force
Most applications
Operating in temperatures
to
+250°F
(121°C)
Electrical
Data And
O.F.
R.F. min. P max. O.T. min. D.T. max.
.T.
UL Code
newtons newtons
mm
mm
mm
Page 20 ounces ounces inches
inches
inches
.1 Amp
P
.1 Amp
P
1 Amp
N
1 Amp
N
4 Amps
S
0,83-1,39
3-5
0,83-1,39
3-5
0,83-1,39
3-5
0,83-1,39
3-5
0,56
2
0,28
1
0,28
1
0,28
1
0,28
1
0,14
.5
0,28
1
0,28
1
0,28
1
0,28
1
0,28
1
0,28
1
0,28
1
0,28
1
0,51
.020
0,51
.020
0,51
.020
0,51
.020
0,51
.020
0,51
.020
0,51
.020
0,51
.020
0,51
.020
0,76
.030
0,76
.030
0,51
.020
0,76
.030
0,13
.005
0,076
.003
0,13
.005
0,076
.003
0,13
.005
0,13
.005
0,13
.005
0,13
.005
0,13
.005
0,13
.005
0,13
.005
0,13
.005
0,13
.005
0,1
.004
0,1
.004
0,1
.004
0,1
.004
0,051
.002
0,1
.004
0,1
.004
0,1
.004
0,025
.001
0,1
.004
0,1
.004
0,1
.004
0,1
.004
O.P
.*
mm
inches
8,38
.330
8,38
.330
8,38
.330
8,38
.330
8,38
.330
8,38
.330
8,38
.330
8,38
.330
8,38
.330
8,38
.330
8,38
.330
8,38
.330
8,38
.330
5 Amps 0,83-1,39
J
3-5
5 Amps 0,83-1,39
J
3-5
Miniature/
Subminiature
11SM244-T
11SM401-T
Operating in temperatures 5 Amps 0,83-1,39
to
+400°F
(204°C) 100 hrs.
*
3-5
Less differential travel
5 Amps
K
0,97
3.5
max.
21SM284-T2
(MS25085-2)
21SM284
(MS25085-1)
22SM1-T
41SM1-T
MIL-S-8805 application
requirements
MIL-S-8805 application
requirements,
solder terminals
Best stability under
varying humidity
Up to 11 ampere 1/4 hp
(AC) load handling
5 Amps 0,83-1,39
R
3-5
5 Amps 0,83-1,39
R
3-5
5 Amps 0,83-1,39
J
3-5
11 Amps 0,83-1,39
M
3-5
*For electrical data call 1-800-537-6945
411SM1
411SM23
Sealed plunger
construction
As above with gold
contacts
5 Amps 0,83-2,09
K
3-7.5
1 Amp
N
0,83-2,09
3-7.5
0,28
1
0,28
1
0,51
.020
0,51
.020
0,13
.005
0,13
.005
0,1
.004
0,1
.004
8,38
.330
8,38
.330
Except where stated *
±0,38mm
±.015
in.
For application help: call 1-800-537-6945.
Honeywell Sensing and Control
27
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