MICRO SWITCH Specialty Large Basic Switches 004956
BS | DT | MN | MT | TB Series 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
DESCRIPTION
switch terminals
MICRO SWITCH premium specialty large snap-action
Select switch series with a temperature range of
switches are designed for repeatability and enhanced life.
-55 C to 85 C [-67 F to 185 F]
These series of precision switches feature application-specific
Agency certifications with CSA and UL for select catalog
characteristics. From double-break circuitry to handling power
listings
duty electrical loads, MICRO SWITCH premium large snap-
MIL-PRF-8805 for select DT Series catalog listings
action switches are suitable for a variety of applications.
BS Series switches offer alternatives to solve challenging switch
POTENTIAL APPLICATIONS
applications. These unique solutions can provide adjustable
Temperature and pressure switch assemblies
operating characteristics, sequential outputs, or impact
Motor and solenoid dc control circuits
actuation (no external plunger).
Welder control circuits
DT Series switches consist of two independent single-pole
Switch element in machine tools
double throw (SPDT) contacts in one housing controlled by an
Switch element in manually operated devices
integral common actuator. The DPDT contact configuration
provides a contact for the control circuit and a different contact
VALUE TO CUSTOMERS
for the signal or auxiliary circuit.
Can control two independent circuits in a small package (DT
MT Series magnetic blow-out switches are designed to switch
Series and TB Series)
high-capacity (125 Vdc/250 Vdc) electrical loads. An integral
Unique switch design with adjustable operating characteristics
magnet around the contact gap deflects the arc away from the
(BS Series)
contacts, extending switch life. Vents between the cover and
Magnetic blow-out contact design permits control of dc
housing allow the hot gas to escape.
circuits in a small package size (MT Series)
Easy to gang mount, MN Series single pole double throw
Double break switch design adds element of redundancy
double-break switches are for use with limit or control
within small switch package (MN series and TB Series)
mechanisms on machine tools, presses, or other equipment.
MICRO SWITCH TB Series miniature single pole double throw
PORTFOLIO
double break switches offer a means of controlling circuits
The five different series of premium specialty large basic
similar to the MN Series switches except in a smaller package.
switches (BS Series, DT Series, MN Series, MT Series, and TB
Series) complements the four different families of premium large
DIFFERENTIATION
basic switch series (BA Series, BE Series, BM Series, and BZ
Double pole switch options in small package for increased
Series).
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 SolutionsMICRO 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
adjustable switch MICRO SWITCH
designed for power smaller double-break
Differentiator characteristics or BZ Series, but double double-break contacts
duty dc loads package
special circuitry pole double throw
(DPDT)
control circuits to
pressure or design permits
switch high capacity limit or control limit or control
Use temperature switch several different wiring
(125 Vdc and 250 Vdc) mechanisms mechanisms
assemblies configurations
systems
Ampere
Up to 20 A 10 A 10 A 15 A 10 A
rating
Circuitry SPDT, SPNC DPDT SPDT SPDT DB SPDT-DB, DPDT-DB
3,34 N to 5,56 N
Operating 3,34 N to 5,00 N 1,95 N to 3,1 N 1,95 N to 3,89 N
Up to 9,73 N [35 oz] [12.0 oz to 20.0 oz]
force [12 oz to 18 oz] max. [7 oz to 11 oz] [7 oz to 14 oz] max.
max.
Termination solder, screw screw solder, screw screw solder, screw
impact actuation (no pin plunger, straight pin plunger, straight
plunger), pin plunger plunger, straight lever, lever, roller lever,
Actuator pin plunger pin plunger
(SST), overtravel reversed lever, roller flexible leaf, flexible
plunger (SST) lever leaf with roller
125 Vac, 250 Vac,
Voltage up to 480 Vac 125 Vdc, 250 Vdc 480 Vac 250 Vac
28 Vdc
UL recognized;
Agency UL, CSA (most UL recognized; UL recognized,
CSA certified, UL recognized
approvals models) CSA certified CSA certified
MIL-PRF-8805
Operating -55 C to 85 C -55 C to 85 C -55 C to 82 C -55 C to 85 C -55 C to 125 C
temperature [-67 F to 185 F] [-67 F to 185 F] [-67 F to 180 F] [-67 F to 185 F] [-67 F to 257 F]
Contact
silver silver silver silver silver
material
general purpose general purpose general purpose
Housing phenolic arc resistant melamine
phenolic phenolic phenolic
Expected Up to 20,000,000
mechanical operations at 95 % 3,000,000 operations 100,000 operations 10,000,000 cycles 7,000,000 operations
life survival
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