MICRO SWITCH™
Hazardous Location Switches
EX Series
Datasheet
MICRO SWITCH™ EX Series
Hazardous Location Limit Switches
MICRO SWITCH™ EX Series switches feature the smallest UL-listed housings available for use in hazardous locations. The EX
Series switch cavity is designed to cool expanding gases below the ignition temperature of the surrounding explosive atmosphere.
The EX Series is capable of switching up to 20 amps while providing ample wiring space for ease of installation. Single and double
conduit openings are available. Dual conduit openings may allow for through wiring of multiple switches. The EX Series can be
mounted from any of the switch’s four sides.
What makes our switches better?
Honeywell has over 80 years of switch manufacturing experience
covering most environment types
Proven technology plus superior quality and service are offered
world-wide. The EX Series holds multiple agency approvals,
including CE, IEC Ex, UL, CSA, and ATEX directives
Multiple actuator options make the EX Series a good choice for
indoor explosion-proof applications
Smallest UL-listed, power-load carrying switch available for use in
hazardous locations
Manufactured for harsh
and explosive environments
FLEXIBILITY IN MOUNTING
RELIABILITY • ACTUATION VARIETY
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Features
and Benefits
COMPACT AND RUGGED HOUSING
Often used in applications where space is at a premium, MICRO SWITCH™ EX
Series switches feature
ample wiring space that eases installation time.
The
four-sided mounting with optional mounting bracket simplifies installation in most
applications. The EX Series offers dual conduit openings on select models that
allow for through wiring making it easier to wire multiple switches in a single circuit.
International approvals for use around the world
WIDE VARIETY OF PRODUCT OFFERINGS AND VARIATIONS
Broad range of actuator styles available in pin plunger and rotary configurations.
Switching capacity from
1 A for low energy loads,
up to 20 A for most industrial
electrical loads.
DESIGN FLEXIBILITY
Rotary actuators are field adjustable for quick set up and application adaptability.
Roller lever actuators are adjustable through 360° of rotation. 1EX and 2EX listings
have
dual conduit openings enabling “wire through”
or allowing the user to
split the wiring of a double pole switch with one pole exiting each side.
Potential Applications
INDUSTRIAL PAINT BOOTHS
Position detecting in automated paint booths used by indoor industrial painting
companies
Automotive paint booth door position detection assures the door is closed before
paint can be applied
PETROLEUM AND CHEMICAL PLANTS
Valve position in indoor potentially explosive environments in petroleum refineries
and chemical plants
PROCESSING FACILITIES
Position sensing
indoors
at grain handling and processing plants, pulp and paper
processing, lumber and other types of facilities where dust and other fine particles
in the atmosphere may create the potential for explosions
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EX Series
Table 1. Specifications
Characteristic
Product type
Actuators
Circuitry
Electrical
Housing material
Termination types
Parameter
MICRO SWITCH™ hazardous location limit switches
overtravel top plunger
side roller lever
adjustable roller lever
rod lever
adjustable rod lever with one-inch nylon roller
SPDT, DPDT
1 A, 3 A, 5 A, 10 A, 15 A, and 20 A
Aluminum die-cast
1/2-14 NPT conduit, preleaded
NEMA 1, 7, and 9, UL listed, and CSA certified:
Class I, Div.1 & 2,
Groups B*,
C, and D
[*Group B - only as noted in order guide]
Class II, Div.1 & 2, Groups E, F, and G
-40 °C to 71 °C [-40 °F to 160 °F]
*High temp models available up to 204 °C [400 °F] (refer to order guide on pages 6 and 7)
IEC Ex, ATEX (CE), UL, CSA
#E14274
#LR57324
KEMA 04ATEX2312X
KEM 08.0012X
302119
302119 Switches and controls and relays
one-way roller lever
manually activated paddle
Sealing
Operating temperature
1
Agency approvals and standards
UL listed
CSA certified
ATEX directive
2
IEC Ex certified
UNSPSC code
UNSPSC commodity
1
2
Refer to order guide
Most models, refer to individual specifications for selected catalog listings
Table 2. Agency Approvals and Standards
UL, CE/ATEX, CSA, IEC Ex, INMETRO
UL listed
CSA certified
ATEX directive *
#E14274
#LR57324
KEMA 04ATEX2312X
Standards & Designations
UL 1203
C22.2 No. 25 and No. 30
II 2 G Ex d IIB + H2 T6 Gb (EX)
II 2 G Ex d IIB + H2 T2 Gb (EXHT)
EN60079-0 and EN60079-1
II 2 G Ex d IIB + H2 T6 Gb (EX)
II 2 G Ex d IIB + H2 T2 Gb (EXHT)
IEC60079-0 and IEC60079-1
IEC60079-0 and IEC60079-1
IEC Ex certified *
INMETRO certified *
KEM 08.0027X
In process
*Most models, refer to individual specifications for selected catalog listings
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MICRO SWITCH™ Hazardous Location Limit Switches
Table 3. Circuitry and Electrical Ratings
Rating
code
Circuitry
Electrical rating
UL/CSA Rating:
15 A, 125, 250, or 480 Vac
1/8 HP, 125 Vac; 1/4 HP, 250 Vac
0.5 A, 125 Vdc; 0.25 A 250 Vdc
UL/CSA Rating:
20 A, 125, 250, or 480 Vac
10 A, 125 Vac “L”
1 HP, 125 Vac; 2 HP, 250 Vac
0.5 A, 125 Vdc; 0.25 A, 250 Vdc
UL/CSA Rating:
10 A, 125 or 250 Vac
0.3 A, 125 Vac; 0.15 A 250 Vdc
UL/CSA Rating:
10 A, 125, 250, or 480 Vac
0.5 A, 125 Vdc; 0.25 A 250 Vdc
UL Rating: 1 A, 125 Vac
UL/CSA Rating:
3 A, 125 or 250 Vac
1/10 HP, 125 Vac; 1/6 HP, 250 Vac
UL/CSA Rating:
5 A, 125, 250, or 480 Vac;
0.50 A, 125 Vdc; 0.25 A, 250 Vac
Table 4. Hazardous Location Classifications
Rating
code
1
Classification
Explosion Proof-UL listed for Hazardous Locations
NEMA 7, Class I, Groups B, C, and D
NEMA 9, Class II, Groups E, F, and G
Explosion Proof-UL listed for Hazardous Locations
NEMA 7, Class I, Groups C and D
NEMA 9, Class II, Groups E, F, and G
European Hazardous Locations Designation:
Ex dIIB + H2 T6 Category II 2 G
European Hazardous Locations Designation:
Ex dIIB + H2 T2 Category II 2 G
A
SPDT
2
B
SPDT
3
4
C
DPDT
Series
EX
EXHT
Code
T6
T2
ATEX Temperature Rating
-40 °C to 70 °C [-40 °F to 158 °F]
-40 °C to 204 °C [-40 °F to 400 °F]
D
E
F
SPDT
SPDT
SPDT
G
SPDT
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