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Overview

MICRO SWITCH BX2 Series Hazardous Location Limit Switches (Non Plug-in), side rotary (momentary, low PT and DT), 2NC 2NO SPDT snap action, 20 mm conduit, and 316L stainless steel housing.
The MICRO SWITCH BX2 Series features a 316L stainless steel enclosure that provides enhanced corrosion resistance in applications exposted to aggressive, caustic agents. The stainless steel housing helps protect the switch mechanism from corrosion often present in chemical processing plants, off-shore/near-shore sites, and other hazardous areas. These enclosures also meet the European Hazardous Locations Designation: II 2 GD, Ex d IIC T6 Gb; 1 Ex d IIC T6 Gb; II 2 D Ex tb IIIC t85C Db. The BX2 Series complies with the European Directive on Equipment and Protective Systems Intended for Use in Potentially Explosive Atmospheres (94/9/EC) commonly referred to as the ATEX Directive. Compliance with the Essential Health and Safety Requirements has been assured by compliance with EN50014 1997 and EN50018 1994. MICRO SWITCH BX2 Series meets the North American Hazardous Locations Designation: Division I, Class I, Groups B, C and D; Division I, 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 certifications. The MICRO SWITCH BX2 is ideal 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 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 on the BX2 are (1) an extended plunger between the switch cavity and head and (2) the cover-housing threads on the front of the switch.
BX24P4L Hazardous Area Limit Switches - Honeywell


Technical Specifications

Approvals Div 1 & 2, Class I Groups B, C, & D; Div 1 & 2, Class II Groups E, F, & G; II 2 G Ex d IIC T6 Gb; 1 Ex d IIC T6 Gb; II 2 D Ex tb IIIC T85C Db
Agency Approvals and Standards cULus, ATEX (CE), IEC Ex, INMETRO, KOSHA, NEPSI, EAC (Gost-R)
Series Name BX2 Switches
Availability Global
Pretravel (PT) 9° max.
Differential Travel (DT) 4° max.
Overtravel (OT) 68° min.
Product Type MICRO SWITCH Weather-Sealed, Explosion-Proof Limit Switches/European and Global Approvals
Actuator Side Rotary
Supply Voltage 600 Vac and 250 Vdc max.
Lever Type
Circuitry 2NC 2NO DPDT Snap Action, Double-Break
Ampere Rating 10 A (Thermal)
Housing Material 316L Stainless Steel
Termination Type 20 mm Conduit
Housing Type BX Non Plug-in
Sealing IP67; NEMA 1, 3, 4, 4X, 6 and 13
Operating Temperature -40°C to 70°C [-40°F to 158°F]
UNSPSC Code 39122213
UNSPSC Commodity 39122213 Limit Switch
Sealed Explosion-proof

Technical Specifications

Approvals Div 1 & 2, Class I Groups B, C, & D; Div 1 & 2, Class II Groups E, F, & G; II 2 G Ex d IIC T6 Gb; 1 Ex d IIC T6 Gb; II 2 D Ex tb IIIC T85C Db
Agency Approvals and Standards cULus, ATEX (CE), IEC Ex, INMETRO, KOSHA, NEPSI, EAC (Gost-R)
Series Name BX2 Switches
Availability Global
Pretravel (PT) 9° max.
Differential Travel (DT) 4° max.
Overtravel (OT) 68° min.
Product Type MICRO SWITCH Weather-Sealed, Explosion-Proof Limit Switches/European and Global Approvals
Actuator Side Rotary
Supply Voltage 600 Vac and 250 Vdc max.
Lever Type Lever Not Included - Reference Lever Required Accessory
Circuitry 2NC 2NO DPDT Snap Action, Double-Break
Ampere Rating 10 A (Thermal)
Housing Material 316L Stainless Steel
Termination Type 20 mm Conduit
Housing Type BX Non Plug-in
Sealing IP67; NEMA 1, 3, 4, 4X, 6 and 13
Operating Temperature -40°C to 70°C [-40°F to 158°F]
UNSPSC Code 39122213
UNSPSC Commodity 39122213 Limit Switch
Sealed Explosion-proof

Documents

TITLE DOCUMENT TYPE LANGUAGE SIZE
MICRO SWITCH BX/BX2 Series Explosion-Proof Limit Switches Datasheet English 6MB
50047766: MICRO SWITCH BX2 Series Explosion-Proof Limit Switch (Stainless Steel) Installation Instructions English 4MB
MICRO SWITCH Hazardous Location Approvals Matrix Hazardous Location Approvals Documentation English 517KB
BX2 Series: Gas Recovery Unit and Other O&G Drilling Applications Application Note English 667KB
Guide to Hazardous Location Approvals: MICRO SWITCH Hazardous Area Limit Switches Hazardous Location Approvals Documentation English 3MB
BX2 Series: Pipeline Pig Passage Detection/Indicator Applications Application Note English 635KB
Oil and Gas Brochure Brochure English 4MB
Sensor and Switch Solutions for Industrial Applications Brochure English 3MB
Sensors and Switches in Valves and Flowmeters Application Note English 2MB
Industrial Product Line Card Line Card/Selection Chart English 2MB
MICRO SWITCH Hazardous Area Switches Brochure Brochure English 27MB
White Paper: How Switches Can Stop Machines from Going Boom White Paper English 7MB

Product Features

  • cULus, ATEX (CE), IEC Ex, INMETRO, NEPSI, EAC (Gost-R) approvals
  • Sealing - applicable portions of IP67 and NEMA 1, 3, 4, 4X, 6 and 13
  • 316L Stainless steel housing for protection in highly corrosive and/or caustic environments
  • Diverse conduit selection for wide range of applications
  • Compatible with LSX
  • Variety of heads and non-sparking actuators
  • 10 A continuous carry electrical rating
  • Choice of silver or gold contacts
  • Internal grounding screw

Applications

  • Control valves and actuators
  • Offshore drilling
  • Grain elevators
  • Petrochemical plants
  • Chemical plants
  • Waste treatment
  • Paint booths
  • Mining conveyors
  • Pulp and paper coating
  • Hazardous waste handling

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