MT-4R-P1 [HONEYWELL]
Snap Acting/Limit Switch, SPDT, Momentary, 10A, 125VDC, 1.15mm, Screw Terminal, Panel Mount;
| 型号： | MT-4R-P1 |
| 厂家： | 
Honeywell |
| 描述： | Snap Acting/Limit Switch, SPDT, Momentary, 10A, 125VDC, 1.15mm, Screw Terminal, Panel Mount 开关 光电二极管 |
| 文件： | 总14页 (文件大小：1538K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MICRO SWITCH™ Specialty Large Basic Switches
BS | DT | MN | MT | TB Series
004956
Issue 3
Datasheet
FEATURES
• Double pole design in small package allows for control of two
independent circuits (DT Series and MN Series)
• Switch design with adjustable operating characteristics (BS
Series)
• Higher dc current capacity at 125 Vdc and 250 Vdc with
magnetic blow-out contact design (MT Series)
• Compact switch package with double-break contacts (MN
Series and TB Series)
• Variety of integral plunger and lever options or auxiliary
plunger and lever options
• Most switches mount on the common 25,4 mm [1.00 in]
centers
• Metal or plastic enclosures available to prevent contact with
switch terminals
DESCRIPTION
MICRO SWITCH™ premium specialty large snap-action
switches are designed for repeatability and enhanced life.
These series of precision switches feature application-specific
characteristics. From double-break circuitry to handling power
duty electrical loads, MICRO SWITCH™ premium large snap-
action switches are suitable for a variety of applications.
• Select switch series with a temperature range of
-55 °C to 85 °C [-67 °F to 185 °F]
• Agency certifications with CSA and UL for select catalog
listings
• MIL-PRF-8805 for select DT Series catalog listings
BS Series switches offer alternatives to solve challenging switch
applications. These unique solutions can provide adjustable
operating characteristics, sequential outputs, or impact
actuation (no external plunger).
POTENTIAL APPLICATIONS
• Temperature and pressure switch assemblies
• Motor and solenoid dc control circuits
• Welder control circuits
DT Series switches consist of two independent single-pole
double throw (SPDT) contacts in one housing controlled by an
integral common actuator. The DPDT contact configuration
provides a contact for the control circuit and a different contact
for the signal or auxiliary circuit.
• Switch element in machine tools
• Switch element in manually operated devices
VALUE TO CUSTOMERS
• Can control two independent circuits in a small package (DT
MT Series magnetic blow-out switches are designed to switch
high-capacity (125 Vdc/250 Vdc) electrical loads. An integral
magnet around the contact gap deflects the arc away from the
contacts, extending switch life. Vents between the cover and
housing allow the hot gas to escape.
Series and TB Series)
• Unique switch design with adjustable operating characteristics
(BS Series)
• Magnetic blow-out contact design permits control of dc
circuits in a small package size (MT Series)
• Double break switch design adds element of redundancy
within small switch package (MN series and TB Series)
Easy to gang mount, MN Series single pole double throw
double-break switches are for use with limit or control
mechanisms on machine tools, presses, or other equipment.
MICRO SWITCH™ TB Series miniature single pole double throw
double break switches offer a means of controlling circuits
similar to the MN Series switches except in a smaller package.
PORTFOLIO
The five different series of premium specialty large basic
switches (BS Series, DT Series, MN Series, MT Series, and TB
Series) complements the four different families of premium large
basic switch series (BA Series, BE Series, BM Series, and BZ
Series).
DIFFERENTIATION
• Double pole switch options in small package for increased
application flexibility
• Double break switch options in compact design requires less
space on equipment
• -55 °C [-67 °F] low temperature capability for harsh outdoor or
cold room applications
Sensing and Productivity Solutions
MICRO SWITCH™ Specialty Large Basic Switches BS | DT | MN | MT | TB Series
Table 1. Specifications
Series
BS Series
DT Series
MT Series
MN Series
TB Series
same size as the
MICRO SWITCH™
BZ Series, but double
pole double throw
(DPDT)
adjustable switch
Differentiator characteristics or
special circuitry
designed for power
duty dc loads
smaller double-break
package
double-break contacts
limit or control
control circuits to
switch high capacity
(125 Vdc and 250 Vdc) mechanisms
systems
pressure or
temperature switch
assemblies
design permits
several different wiring
configurations
limit or control
mechanisms
Use
Ampere
rating
Up to 20 A
10 A
10 A
15 A
10 A
Circuitry
SPDT, SPNC
DPDT
SPDT
SPDT DB
SPDT-DB, DPDT-DB
3,34 N to 5,56 N
[12.0 oz to 20.0 oz]
max.
Operating
force
3,34 N to 5,00 N
[12 oz to 18 oz] max.
1,95 N to 3,1 N
[7 oz to 11 oz]
1,95 N to 3,89 N
[7 oz to 14 oz] max.
Up to 9,73 N [35 oz]
solder, screw
Termination
Actuator
screw
solder, screw
screw
solder, screw
pin plunger
impact actuation (no
plunger), pin plunger
(SST), overtravel
plunger (SST)
pin plunger, straight
plunger, straight lever, lever, roller lever,
reversed lever, roller
lever
pin plunger, straight
pin plunger
flexible leaf, flexible
leaf with roller
125 Vac, 250 Vac,
28 Vdc
Voltage
up to 480 Vac
125 Vdc, 250 Vdc
480 Vac
250 Vac
UL recognized;
CSA certified,
MIL-PRF-8805
Agency
approvals
UL, CSA (most
models)
UL recognized;
CSA certified
UL recognized,
CSA certified
UL recognized
Operating
temperature
-55 °C to 85 °C
[-67 °F to 185 °F]
-55 °C to 85 °C
[-67 °F to 185 °F]
-55 °C to 82 °C
[-67 °F to 180 °F]
-55 °C to 85 °C
[-67 °F to 185 °F]
-55 °C to 125 °C
[-67 °F to 257 °F]
Contact
material
silver
silver
silver
silver
silver
general purpose
phenolic
general purpose
phenolic
general purpose
phenolic
Housing
phenolic
arc resistant melamine
Expected
mechanical
life
Up to 20,000,000
operations at 95 %
survival
3,000,000 operations
100,000 operations
10,000,000 cycles
7,000,000 operations
2
sensing.honeywell.com
MICRO SWITCH™ Specialty Large Basic Switches BS | DT | MN | MT | TB Series
O.F. • Operating force
R.F. • Release force
P.T. • Pretravel
O.T. • Overtravel
D.T. • Differential travel
O.P. • Operating position
Table 2. BS Series Order Guide
P.T.
max.
mm
[in]
O.T.
min.
mm
[in]
R.F.
min.
N [oz]
Catalog
Listing
O.F.
N [oz]
D.T.
mm [in]
O.P. max.
mm [in]
Description
0,39 [1.41],
5 to 8 G
force
Impact actuated (no
plunger)
0,20
[0.71]
4BS3
–
–
–
–
–
–
–
–
–
10 A
E
2,78
[10]
6BS1-B
10BS210
SPST-NO sequential
12,5 [45]
Max.
set-
ting,
Adjustable
20 A
F
3,06 to 5,56
[11 to 20]
2,78
[10]
0,25
[0.010]
16,3 [0.64]
16,3 [0.64]
characteristics
0,18
[0.007]
Table 3. 6BS1-B Electrical Ratings and UL Code
Code
Circuitry Electrical Data and UL Code
10 A, 125 Vac to 250 Vac
1/3 HP, 125 Vac; 3/4 HP, 250 Vac
1/2 A, 125 Vdc; 1/4 A, 250 Vdc
UL Code L115
SPST-NO
sequential
E
Figure 1. 6BS1-B Sequence of Operation
Table 4. 10BS210 Electrical Ratings and UL Code
Code
Circuitry Electrical Data and UL Code
20 A, 125 Vac, 250 Vac, 480 Vac
F
SPDT
3/4 HP, 125 Vac; 1½ HP, 250 Vac
UL Code L17
Sensing and Productivity Solutions
3
MICRO SWITCH™ Specialty Large Basic Switches BS | DT | MN | MT | TB Series
O.F. • Operating force
R.F. • Release force
P.T. • Pretravel
O.T. • Overtravel
D.T. • Differential travel
O.P. • Operating position
Table 5. DT Series Order Guide
P.T.
max.
mm
[in]
O.T.
min.
mm
[in]
R.F.
min.
N [ oz]
Catalog
Listing
O.F.
N [oz]
D.T.
mm [in]
O.P.*
mm [in]
Description
Pin plunger,
15,6 0,38
[0.615
0.015]
DT-2R-A7
MS25008-1
10 A
A
3,35 to 5,56
[12 to 20]
0,56
[2]
1,91
[0.075] [0.005]
0,13
1,02 to 1,52
[0.040 to 0.060]
MIL-PRF-8805
applications
28,2 0,38
[1.11
10 A
A
3,35 to 5,56
[12 to 20]
0,28
[1]
1,91
[0.075] [0.020]
0,51
1,02 to 1,52
[0.040 to 0.060]
DT-2RS1-A7
Straight plunger
0.015]
Straight lever, reversed
lever position
10 A
A
1,11 to 1,95
[4 to 7]
0,14
[0.5]
6,86
[0.270] [0.010]
0,25
2,92 to 4,83
[0.115 to 0.190]
18,3
[0.719]
DT-2RV3-A7
DT-2RV-A7
10 A
A
0,97 to 1,67
[3.5 to 6]
0,28
[1]
25,4
[1]
1,57
[0.062]
12,4 to 19,2
[0.490 to 0.755]
21,8
[0.859]
Straight lever
Roller lever
10 A
A
11,1
[2.5]
1,11
[4]
1,02
[0.040] [0.005]
0,13
0,51 to 0,76
[0.020 to 0.030]
31
[1.219]
DT-2RV216-A7
(centered SST roller)
30,2 0,38
[1.188
26,2 mm [1.03 in]
10 A
A
2,5 to 3,89
[9 to 14]
0,83
[3]
9,9
0,79
4,95 to 7,75
[0.195 to 0.305]
DT-2RV22-A7
DT-2RV212-A7
[0.39] [0.031]
roller lever (SST roller)
0.015]
30,2 mm [1.19 in]
reversed roller lever
(SST roller)
10 A
A
2,5 to 4,17
[9 to 15]
0,42
[1.5]
3,3
0,13
1,27 to 2,16
[0.050 to 0.085]
29,4
[1.156]
[0.130] [0.005]
48,22 [1.9 in] reversed
roller lever (SST roller)
10 A
A
1,53 to 2,64
[5.5 to 9.5]
0,21
4,45
0,25
2,16 to 3,43
[0.085 to 0.135]
29,4
[1.156]
DT-2RV23-A7
DT-2RV2-A7
[0.75] [0.175] [0.010]
48,3 mm [1.90 in]
10 A
A
1,25 to 2,09
[4.5 to 7.5]
0,42
[1.5]
18,27
[0.72] [0.047]
1,19
9,27 to 14,4
[0.365 to 0.565]
31,8
[1.250]
roller lever (SST roller)
* Except where stated 0,76 mm [ 0.030 in]
Table 6. DT Series Electrical Ratings and UL Code
Code
Circuitry Electrical Data and UL Code
10 A, 125 Vac or 250 Vac
0.3 A, 125 Vdc
DPDT
A
0.15 A, 250 Vdc
UL Code L59
4
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MICRO SWITCH™ Specialty Large Basic Switches BS | DT | MN | MT | TB Series
O.F. • Operating force
R.F. • Release force
P.T. • Pretravel
O.T. • Overtravel
D.T. • Differential travel
O.P. • Operating position
Table 7. MT Series Order Guide
P.T.
max.
mm
[in]
O.T.
min.
mm
[in]
R.F.
min.
N [oz]
Catalog
Listing
O.F.
N [oz]
D.T.
mm [in]
O.P. max.*
mm [in]
Description
15,9 0,38
[0.625
0.015]
10 A
B
3,34 to 5,0
[12 to 18]
1,39
[5]
1,02
[0.04] [0.005]
0,13
0,1 to 0,18
[0.004 to 0.007]
MT-4R-A28
Pin plunger
10 A
B
0,56
[2]
0,14
[0.5]
12,7
[0.5]
1,19
[0.047]
2,16
[0.085]
19,1
[0.75]
MT-4RV-A28
MT-4RV2-A28
MT-4RV22-A28
Straight lever
48,3 mm [1.90 in]
lever with SST roller
10 A
B
0,76
[2.75]
0,07
[0.25]
8,89
[0.35] [0.031]
0,79
1,65
[0.065]
30,2
[1.188]
26,2 mm [1.03 in]
lever with SST roller
10 A
B
1,25
[4.5]
0,28
[1]
5,08 0,38
[0.20] [0.015]
0,89
[0.035]
31,3
[1.234]
1,52
6,35
49,5 mm [1.95 in]
flexible leaf
10 A
B
3,34
[12]
0,28
[1]
19,1
[0.75]
MT-4RL-A28
MT-4RL2-A28
[0.060]
[0.25]
–
–
max.
46,2 mm [1.82 in]
flexible leaf with SST
roller
1,52
6,35
10 A
B
3,34
[12]
0,28
[1]
30,2
[1.188]
[0.060]
[0.25]
max.
*
0,76 mm [ 0.030 in]
Table 8. MT Series Electrical Ratings and UL Code
Code
Circuitry Electrical Data and UL Code
Rating established with switch non-polarized
10 A, 125 Vac or Vdc;
1/4 HP, 125 Vac or Vdc
UL Code L168
SPDT
Non-polarized:
B
10 A res. or 1/4 HP, 125 Vdc;
3 A max. res. 250 Vdc
Polarized*:
10 A res. or 1/2 HP, 125 Vdc;
3 A max. res., 250 Vdc
*To polarize, connect negative side of line to common terminal.
To achieve the same effect, mount switch with brass screws, using
a non-magnetic barrier (at least 1⁄4 N thick) between the switch and
mounting surface
Sensing and Productivity Solutions
5
MICRO SWITCH™ Specialty Large Basic Switches BS | DT | MN | MT | TB Series
Table 9. MN Series Order Guide
P.T.
max.
mm
[in]
O.T.
min.
mm
[in]
R.F.
min.
N [oz]
Catalog
Listing
O.F.
N [oz]
D.T.
mm [in]
O.P.* max.
mm [in]
Description
15 A
C
3,34 to 5,56
[12 to 20]
1,67
[6]
1,52
2,03
0,38 to 0,63
[0.015 to 0.025]
2,16
[0.085]
3MN1
General purpose
Lower force
[0.060] [0.080]
1,52 2,03
[0.060] [0.080]
15 A
C
1,95 to 3,1
[7 to 11]
1,11
[4]
0,38 to 0,63
[0.015 to 0.025]
2,16
[0.085]
3MN6
* ±±0,3 mm ꢀ±±.±ꢁꢂ inꢃ
Table 10. MN Series Electrical Ratings and UL Code
Code
Circuitry Electrical Data and UL File 22779
Two-
circuit,
double
break
15 A, 120 Vac, 240 Vac, 480 Vac, or 600 Vac
1/2 HP, 120 Vac; 1 HP, 240 Vac
0.8 A, 115 Vdc
C
0.4 A, 230 Vdc
Table 11. TB Series Order Guide
P.T.
max.
mm
[in]
O.T.
min.
mm
[in]
R.F.
min.
N [oz]
Catalog
Listing
O.F.
N [oz]
D.T.
mm [in]
O.P.* max.
mm [in]
Description
Two-circuit,
doublebreak, end
screw terminals
10 A
D
1,95 to 3,61
[7 to 13]
1,11
[4]
1,52
[0.060] [0.010]
0,25
0,25 to 0,64
[0.010 to 0.025]
11,7
[0.460]
1TB1-1
1TB1-2
1TB1-3
Two-circuit,
doublebreak, end
solder terminals
10 A
D
1,95 to 3,61
[7 to 13]
1,11
[4]
1,52
[0.060] [0.010]
0,25
0,25 to 0,64
[0.010 to 0.025]
11,7
[0.460]
Two-circuit,
doublebreak, front
solder terminals
10 A
D
1,95 to 3,61
[7 to 13]
1,11
[4]
1,52
[0.060] [0.010]
0,25
0,25 to 0,64
[0.010 to 0.025]
11,7
[0.460]
Four-circuit,
doublebreak, front
solder terminals
10 A
D
5,56 to 10
[20 to 36]
2,22
[8]
1,78
[0.070] [0.010]
0,25
0,64 to 1,14
[0.025 to 0.045]
4,70
[0.185]
41TB5-3
* ±±0,3 mm ꢀ±±.±ꢁꢂ inꢃ
Table 12. TB Series Electrical Ratings and UL Code
Code
Circuitry
Electrical Data
Two-circuit, double
break
10 A, 125 Vac or 250 Vac;
1/2 HP, 125 Vac
UL Code L25
Four-circuit, double
break
D
6
sensing.honeywell.com
MICRO SWITCH™ Specialty Large Basic Switches BS | DT | MN | MT | TB Series
Table 13. BS Series • Standard Actuator Options, Terminals, and Dimensions mm [in]
4BS3
6BS1-B (sequential)
12,7 mm
[0.50 in]
Ø 7,11 mm
[Ø 0.28 in]
Ø 11,18 mm
[Ø 0.44 in]
Ø 14,9 mm
3,6 mm
[0.14 in]
15,0 mm
[0.59 in]
[Ø 0.59 in]
Ø 1,52 mm
[Ø 0.06 in]
19,05 mm [0.75 in]
Stainless
steel
plunger
6,35 mm
[0.25 in]
4,3 mm
[0.17 in]
dia.
4,29 mm
[0.169 in]
3,6 mm
[0.14 in]
dia.
14,9 mm
[0.59 in]
25,4 mm
[1.00 in]
49,3 mm
[1.94 in]
12,7 mm
[0.25 in]
10BS210 (adjustable characteristics)
19,05 mm
[0.75 in]
Ø 4,29 mm
[Ø 0.169 in]
Ø 4,57 mm
[Ø 0.18 in]
11,9
[0.47]
25,4 mm [1.0 in]
43,9 mm [1.94 in]
Serrated edge
Flexible
insulator
Ø 2,39 mm
[Ø 0.094 in]
25,14 mm
[0.99 in]
16,26 mm
[0.64 in] O.P.
9,1 mm
0.36 in
3,6 mm
[0.14 in]
Ø 4,3 mm
[Ø 0.17 in]
Ø 3,6 mm
[Ø 0.14 in]
11,9
0.47
25,4 mm [1.00 in]
49,3 mm [1.94 in]
Sensing and Productivity Solutions
7
MICRO SWITCH™ Specialty Large Basic Switches BS | DT | MN | MT | TB Series
Table 14. DT Series • Standard Actuator Options, Screw Terminals, and Dimensions mm [in]
DT Series: Pin plunger
DT Series: Straight lever
DT Series: Straight lever (reversed)
DT Series: Roller lever
DT Series: Roller lever
DT Series: Roller lever (reversed)
DT Series: Roller lever (reversed)
DT Series: Roller lever (reversed)
DT Series: Straight plunger
8
sensing.honeywell.com
MICRO SWITCH™ Specialty Large Basic Switches BS | DT | MN | MT | TB Series
Table 15. MT Series • Standard Actuator Options, Terminals, and Dimensions mm [in]
MT Series: Pin plunger
MT Series: Straight lever
MT Series: Roller lever
MT Series: Flexible leaf lever
MT Series: Flexible leaf roller lever
Table 16. MN Series • Standard Actuator Options, Terminals, and Dimensions mm [in]
MN Series: Pin plunger
Sensing and Productivity Solutions
9
MICRO SWITCH™ Specialty Large Basic Switches BS | DT | MN | MT | TB Series
Table 17. TB Series • Standard Actuator Options, Terminals, and Dimensions mm [in]
TB Series: Pin plunger, screw terminals
TB Series: Pin plunger, solder terminals
TB Series: Pin plunger, solder terminals (front)
TB Series: Pin plunger, solder terminals (front), four circuit
10 sensing.honeywell.com
MICRO SWITCH™ Specialty Large Basic Switches BS | DT | MN | MT | TB Series
Table 18. Large Snap-Action Switch Accessories • Brackets
Description
8MA1
8MA2
17MA1-B
Adjustable mounting bracket with
adjustment slot on left
Adjustable mounting bracket with
adjustment slot on right
Description
Conversion mounting bracket
Corrosion-resistant metal
Housing material Steel
Steel
66,8 mm W x 19,0 mm D
[2.63 in W x 0.75 in D]
Measurements
60,2 mm W x 21,3 mm H x 7,4 mm D [2.37 in W x 0.84 in H x 0.29 in D]
converts standard basic switches
from side to top mount; corrosion
resistant; snaps into switch mounting
holes without tools
sturdy plated steel construction; fast, easy screwdriver adjustment; can be
used with all standard basic switches
Features
Table 19. Large Snap-Action Switch Accessories • Zinc Die-Cast Enclosures
Description
3PA1
3PA28
3PA2
switch secured in enclosure; two 4,37
mm [0.172 in] dia. holes in flange ac-
cept #8 screws for mounting on 41,3
mm [1.625 in] centers; conduit/hub
0.5 – 14 NPT internal thread
mounted from either side through
3,55 mm [0.140 in] dia. holes on 25,4 3,55 mm [0.140 in] dia. holes on 25,4
mm [1.0 in] centers; conduit/hub 0.5
– 14 NPT internal thread
mounted from either side through
Description
mm [1.0 in] centers. 1/2-14 NPSM
internal thread conduit hub
Housing material die-cast zinc enclosure (side mount)
die-cast zinc enclosure (side mount)
die-cast zinc enclosure (flange mount)
74,8 mm W x 42,9 mm H x 25,4 mm
Measurements
74,8 mm W x 42,9 mm H x 25,4 mm
D [2.95 in W x 1.69 in H x 1.00 in D]
74,8 mm W x 42,9 mm H x 25,4 mm D
[2.95 in W x 1.69 in H x 1.00 in D]
D [2.95 in W x 1.69 in H x 1.00 in D]
Sealing/Features NEMA 1; IP40; protects the switch from physical abuse and personnel from contact with exposed terminals
Table 20. Large Snap-Action Switch Accessories • Plastic Terminal Enclosures
Description
5PA1
5PA2
5PA3
Plastic terminal enclosure used
with either solder or screw terminal
switches with auxiliary actuators
assembled
Plastic terminal enclosure used with
solder terminal switches
Plastic terminal enclosure used with
screw terminal switches
Description
Housing material plastic
52,8 mm W x 16,1 mm H
plastic
plastic
52,8 mm W x 20,2 mm H x 21,0 mm
D [2.08 in W x 0.80 in H x 0.83 in D]
52,8 mm W x 20,2 mm H x 21,0 mm D
[2.08 in W x 0.80 in H x 0.83 in D]
Measurements
[2.08 in W x 0.64 in H]
Sealing/Features NEMA 1, IP40; easy to use; screw & solder terminal versions; protect personnel from contact with exposed terminals
Sensing and Productivity Solutions 11
MICRO SWITCH™ Specialty Large Basic Switches BS | DT | MN | MT | TB Series
Table 21. Auxiliary Actuator Order Guide
For
Catalog
Listing
Overtravel min.
mm [in]
Operating Position*
mm [in]
Free Position
mm [in]
Description
Use
With
Roller lever for “S”
plunger type DT switch-
es only. Permits cam
operation
44,45 mm 3,18 mm
[1.75 in 0.125 in]
JR
DT
11,1 mm [0.437 in]
–
Adjustable roller lever.
Tang on top of actuator
can be bent to adjust
O.P. and F.P.
9,53 mm [0.375 in] 39,6 mm
approx. [1.562 in] approx.
46,03 mm
[1.812 in]
ADD3721R
MCD2711
DT, MT
Straight plunger. Panel
mount
30,18 mm
[1.188 in]
DT, MT 3,58 mm [0.141 in] 27,79 mm [1.094 in]
DT, MT 3,58 mm [0.141 in] 27,79 mm [1.094 in]
Sealed straight plunger.
Panel mount. Elastomer
boot seal keeps out
liquid splash and dirt.
Furnished unassem-
bled.
30,18 mm
[1.188 in]
MCD2711H
MD3211Q
MD3211Q1
Roller plunger. Panel
mount. Roller parallel to DT, MT 3,18 mm [0.125 in] 35,7 mm [1.406 in]
long axis of the switch
37,69 mm
[1.484 in]
Cross roller plunger.
Panel mount. Roller
37,69 mm
[1.484 in]
DT, MT 3,18 mm [0.125 in] 35,7 mm [1.406 in]
perpendicular to long
axis of the switch
High overtravel plunger.
Panel mount
18,26 mm
[0.719 in]
71,42 mm
[2.812 in]
MCD7711
DT, MT
69,1 mm [2.719 in]
* Except where stated 1,14 mm [ 0.045 in]
NOTE: All actuators are for use with pin plunger types only, except catalog listing JR.
12 sensing.honeywell.com
MICRO SWITCH™ Specialty Large Basic Switches BS | DT | MN | MT | TB Series
OPERATING CHARACTERISTICS
Table 22. Operating Characteristics Definitions
Characteristic
Description
Differential Travel-DT
Free Position-FP
Plunger or actuator travel from point where contacts “snap-over” to point where they “snap-back.”
Position of switch plunger or actuator when no external force is applied.
Force required to attain full overtravel of actuator.
Full Overtravel Force
Position of switch plunger or actuator at which point contacts snap from normal to operated position. With
flexible or adjustable actuators, the operating position is measured from the end of the lever or its maximum
length. Location of operating position measurement shown on mounting dimension drawings.
Operating Position-OP
Amount of force applied to switch plunger or actuator to cause the contact “snap-over.” Note in the case of
adjustable actuators, the force is measured from the maximum length position of the lever.
Operating Force-OF
Overtravel-OT
Pretravel-PT
Plunger or actuator travel safely available beyond operating position.
Distance or angle traveled in moving plunger or actuator from free position to operating position.
Amount of force still applied to switch plunger or actuator at the moment contacts snap from operated
position to non-operated position.
Release Force-RF
Total Travel
Distance from actuator free position to overtravel limit position.
Sensing and Productivity Solutions 13
m WARNING
ADDITIONAL MATERIALS
PERSONAL INJURY
The following associated literature is available on the Honeywell
web site at sensing.honeywell.com:
DO NOT USE these products as safety or emergency stop
devices or in any other application where failure of the product
could result in personal injury.
• Product installation instructions
Failure to comply with these instructions could result in
death or serious injury.
• Product application-specific information
– Sensors and switches for potential HVAC/R applications
– Sensors and switches for valve monitors and valve indicators
– Sensors and switches in oil rig applications
– Sensors and switches in sanitary valves
• Applying basic switches
m WARNING
MISUSE OF DOCUMENTATION
•
The information presented in this product sheet is for
reference only. Do not use this document as a product
installation guide.
• Low energy switching guide
•
Complete installation, operation, and maintenance
information is provided in the instructions supplied with
each product.
• Product range guide
Failure to comply with these instructions could result in
death or serious injury.
Warranty/Remedy
Honeywell warrants goods of its manufacture as being free
of defective materials and faulty workmanship. Honeywell’s
standard product warranty applies unless agreed to otherwise by
Honeywell in writing; please refer to your order acknowledgement
or consult your local sales office for specific warranty details. If
warranted goods are returned to Honeywell during the period of
coverage, Honeywell will repair or replace, at its option, without
charge those items it finds defective. The foregoing is buyer’s
sole remedy and is in lieu of all other warranties, expressed
or implied, including those of merchantability and fitness for
a particular purpose. In no event shall Honeywell be liable for
consequential, special, or indirect damages.
Find out more
Honeywell serves its customers
through a worldwide network
of sales offices, representatives
and distributors. For application
assistance, current specifica-
tions, pricing or name of the
nearest Authorized Distributor,
contact your local sales office.
To learn more about Honeywell’s
sensing and switching products,
call +1-815-235-6847 or
While we provide application assistance personally, through our
literature and the Honeywell web site, it is up to the customer to
determine the suitability of the product in the application.
Specifications may change without notice. The information we
supply is believed to be accurate and reliable as of this printing.
However, we assume no responsibility for its use.
1-800-537-6945,
visit sensing.honeywell.com,
or e-mail inquiries to
info.sc@honeywell.com
Sensing and Productivity Solutions
Honeywell
1985 Douglas Drive North
±±49ꢂ6-,-EN ILꢂ± GLO
December 2±ꢁꢂ
Golden Valley, MN 55422
© 2±ꢁꢂ Honeywell International Inc. All rights reserved.
honeywell.com
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