Basic Switches SM Series
Subminiature
26 Honeywell 1 MICRO SWITCH Sensing and Control For application help: call 1-800-537-6945.
CUT-A-WAY SM SUBMINIATURE BASIC SWITCH
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-
angularwirewrapterminals arealso avail-
able. Other quick-connect terminals of
the Series H types are available. Contact
the 800 number for ordering information.
GENERAL INFORMATION
SM subminiature switches are slightly
larger than the SX switches. These
switches combine small size and light
weightwith ampleelectricalcapacity,pre-
cision operation and long life. Unless oth-
erwise noted, all listings have silver con-
tacts.
T SOLDER T2
H4 H58 H2
Mates with Amp Inc. Part
No. 640024-1 Std.
Dimensions shown are for reference only
FEATURES
1
Low operating force to 2 ounces
maximum
1
Sensitive differential travel as low as
.001 inch (0,025 mm) maximum
1
Power load switching capability
available to 11 amps (VAC) – silver
contacts
1
Motor load handling capacity to 1/4
hp (VAC)
1
Optional gold contacts for low energy
applications
1
Optional bifurcated gold contacts for
maximum reliability
1
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
1
Standard temperature range −65° to
+185°F(−54 to 85°C)
1
High temperature construction
available for use to +400
°F (204°C)
for 100 hours
1
Variety of integral and auxiliary
actuators
1
Choice of several terminal styles
1
Military Standard construction
available with three listings on the
MIL-S-8805 qualified products list
1
UL recognized File #E12252, CSA
certified File #LR41372
Mounting Torque:
2.3 inch pounds max.
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.
Basic Switches SM Series
Subminiature
For application help: call 1-800-537-6945. Honeywell 1 MICRO SWITCH Sensing and Control 27
Characteristics: O.F. — Operating Force; R.F. — Release
Force; P.T. — Pretravel; O.T. — Overtravel; D.T. —
Differential Travel; O.P. — Operating Position.
ORDER GUIDE by ascending electrical capability
PIN PLUNGERS
Electrical
Data And O.F. R.F. min. P.T. max. O.T. min. D.T. max. O.P.*
Catalog UL Code newtons newtons mm mm mm mm
Listing Recommended For Page 20 ounces ounces inches inches inches inches
11SM1077-T Gold alloy contacts .1 Amp 0,83-1,39 0,28 0,51 0,13 0,1 8,38
P 3-5 1 .020 .005 .004 .330
12SM604-T Bifurcated gold contacts, .1 Amp 0,83-1,39 0,28 0,51 0,076 0,1 8,38
reduced rating P 3-5 1 .020 .003 .004 .330
11SM23-T Application requiring gold 1 Amp 0,83-1,39 0,28 0,51 0,13 0,1 8,38
contacts N 3-5 1 .020 .005 .004 .330
12SM4-T Best reliability 1 Amp 0,83-1,39 0,28 0,51 0,076 0,1 8,38
(Bifurcated gold contacts) N 3-5 1 .020 .003 .004 .330
11SM701-T Lower force 4 Amps 0,56 0,14 0,51 0,13 0,051 8,38
S 2 .5 .020 .005 .002 .330
11SM1-T Most applications 5 Amps 0,83-1,39 0,28 0,51 0,13 0,1 8,38
J 3-5 1 .020 .005 .004 .330
11SM3-T Operating in temperatures 5 Amps 0,83-1,39 0,28 0,51 0,13 0,1 8,38
to +250
°F (121°C) J 3-5 1 .020 .005 .004 .330
11SM244-T Operating in temperatures 5 Amps 0,83-1,39 0,28 0,51 0,13 0,1 8,38
to +400°F (204°C) 100 hrs. * 3-5 1 .020 .005 .004 .330
11SM401-T Less differential travel 5 Amps 0,97 0,28 0,51 0,13 0,025 8,38
K 3.5 1 .020 .005 .001 .330
max.
21SM284-T2 MIL-S-8805 application 5 Amps 0,83-1,39 0,28 0,76 0,13 0,1 8,38
(MS25085-2)
requirements R 3-5 1 .030 .005 .004 .330
21SM284 MIL-S-8805 application 5 Amps 0,83-1,39 0,28 0,76 0,13 0,1 8,38
(MS25085-1)
requirements, R 3-5 1 .030 .005 .004 .330
solder terminals
22SM1-T Best stability under 5 Amps 0,83-1,39 0,28 0,51 0,13 0,1 8,38
varying humidity J 3-5 1 .020 .005 .004 .330
41SM1-T Up to 11 ampere 1/4 hp 11 Amps 0,83-1,39 0,28 0,76 0,13 0,1 8,38
(AC) load handling M 3-5 1 .030 .005 .004 .330
Dim. Dwg. Fig. 1
*For electrical data call 1-800-537-6945
411SM1 Sealed plunger
construction
5 Amps 0,83-2,09 0,28 0,51 0,13 0,1 8,38
K 3-7.5 1 .020 .005 .004 .330
411SM23 As above with gold
contacts
1 Amp 0,83-2,09 0,28 0,51 0,13 0,1 8,38
N 3-7.5 1 .020 .005 .004 .330
Except where stated * ±0,38mm
±.015 in.
Miniature/
Subminiature
