Honeywell Sensing Micro Switch Hazardous Area Switches Line Guide0 pages

MICRO SWITCH™
Hazardous Area
Switches Line Guide
Hazardous environments demand Honeywell. When conditions
are hazardous and performance is critical, Honeywell Sensing
and Control (S&C) delivers exceptional performance. Our
hazardous location switches are limit switches designed
specifically for dangerous indoor or outdoor locations —
where reliability and repeatability are essential. To comply with
explosion-proof requirements, the flame path within the switch
housing is designed to contain and cool escaping hot gases

— fumes that otherwise could cause an explosion outside the
switch.
Honeywell S&C hazardous location switches are found in
applications as diverse as grain elevators, offshore drilling,
petrochemical and waste treatment plants, paint booths,
hazardous waste-handling facilities, pipeline valves, and
maintenance equipment.

FEATURES
HAZARDOUS AREA LIMIT
SWITCHES
EX Series.
Features: Smallest UL-listed housings
available for use in hazardous locations
• ATEX and IEC Ex certified • Up to 20
amp capacity • Ample wiring space
• Mounts from four sides • Roller arms
adjustable through 360 degrees • Nonsparking actuators • Captive cover screws
• Grounding screw
Benefits: Flame paths within the housing
cool exploding gases below the kindling
temperature before they reach the
explosive gases surrounding the housing.
Potential applications include control
valves and actuators, petrochemical
plants, conveyors and material handling.

BX/BX2 Series.
Features: UL, CSA, ATEX, and IEC Ex
certified • Sealing - NEMA 1, 3, 4, 6, 7, 9,
13 • BX Series: aluminum housing
• BX2 Series: stainless steel housing
• Diverse conduit selection for wide
range of potential applications • Tracking
interchangeability with MICRO SWITCH™
LSX • Variety of heads and non-sparking
actuators • 10 A continuous carry

electrical rating • Choice of silver or gold
contacts • Internal grounding screw
Benefits: BX/BX2 enclosure sealed for
protection against corrosion, water, dust
and oil as defined in NEMA 1, 3, 4, 6, 13
and IP67 as defined in IEC 60529. These
enclosures are certified for II 2 GD; Ex
d IIC T6; Ex d tD A21 T85°C. The entire
series BX/BX2 complies with the ATEX
Directive and is IECEx certified.
BX with conduit types 1/2 in - 14NPT, 3/4
in - 14NPT and all BX2 Series products
also meet the North American Hazardous
Locations Designation: Class I, Groups B,
C and D; Class II, Groups E, F and G and
comply with UL Standard: UL 894, CSA
Standard: C22.2 No. 25-1966, C22.2 No.
30-M1986.
For outdoor use or in adverse
environments where a combination of
explosion proof plus sealing requirements
are needed. To comply with explosion
proof requirements, the BX/BX2 has
flame paths within the housing, which
cool exploding gases below the ignition
temperature before they reach explosive
gases surrounding the housing. Flame

paths are (1) an extended plunger
between the switch cavity and head and
(2) the cover-housing threads on the front
of the switch.
BX2 Series provides enhanced corrosion
resistance in applications exposed to
aggressive, caustic agents, as well as
those found in chemical processing
plants, off-shore/near-shore sites,
and other hazardous areas. Potential
applications include control valves and
actuators, petrochemical plants, waste
treatment, hazardous waste handling,
paint booths, mining equipment, pulp and
paper coating, grain elevators, and more.

CLSX Series.
Features: Positive-opening operation
of normally closed contacts • Available
with up to 2NC positive-opening contacts
• Cable length may be up to 200 ft in a
straight line • Maintained version has
broken/slacked cable detection • Tension
indicator mark for easy adjustment
• For use either indoors or outdoors
• Sealing meets NEMA 1, 3, 4, 6, 7, 9, 13
• Internal grounding screw • UL/CSA
approvals
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