EX Series Limit Switch

Brand: A-T Controls, Inc

The TRIAC® EX, EC/ES, EY, and EW Series hazardous location Limit Switches provide compact design and low cost for both visual and remote electrical indication of rotary valve/actuator position.

Their heavy duty design and wide variety of options make them ideal for multi-purpose limit switch applications.
Features
  • Twin Shaft Body Design
  • "Easy-Set" Cams
  • Multiple Switch Options
  • Valve Position Indicator
  • 1/2" or 3/4" NPT Conduit Entries
  • Standard NAMUR Mounting Brackets
  • Aluminum Housing
  • NEMA 4, 4X, 7 and 9 Applications
  • Up to Three Conduit Entries

1,130 models matching criteria
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'L' Port
  • Switch Type - 3-Position Control w/ Feedback DA Actuator
  • Coating - Black Polyester Powder Coating
  • Conduit - (2) 1/2” NPT, (1) 3/4” NPT Conduit Connection
  • Mounting Bracket Kit - THD Series Heavy Duty Actuators
100+ In Stock
$186.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way Block Center
  • Switch Type - Proximity Reed (Bifurcated) SPST
  • Switch Quantity - 2-Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - 2R20 Thru 2R300, 30-80 mm - 20 mm High-Pinion
100+ In Stock
$236.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'L' Port
  • Switch Type - Solid State Sensor (P&F NBB2-V3-E2)
  • Switch Quantity - 2-Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - 2R500 Thru 2R3500, 30-130 mm - 30 mm High-Pinion
100+ In Stock
$442.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way Block Center
  • Switch Type - 4-20 mA Transmitter
  • Switch Quantity - 2-Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - (2) 1/2” NPT, (1) 3/4” NPT Conduit Connection
  • Mounting Bracket Kit - 2R500 Thru 2R3500, 30-130 mm - 30 mm High-Pinion
100+ In Stock
$464.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'L' Port
  • Switch Type - Proximity Reed (Bifurcated) SPST
  • Switch Quantity - 4 Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - (2) 1/2” NPT, (1) 3/4” NPT Conduit Connection
  • Mounting Bracket Kit - THD Series Heavy Duty Actuators
100+ In Stock
$729.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'L' Port
  • Switch Type - 3-Position Control w/ Feedback DA Actuator
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - THD Series Heavy Duty Actuators
100+ In Stock
$786.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way Block Center
  • Switch Type - AS-I Protocol
  • Switch Quantity - 2-Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - (2) 1/2” NPT, (1) 3/4” NPT Conduit Connection
  • Mounting Bracket Kit - 2R20 Thru 2R300, 30-80 mm - 20 mm High-Pinion
100+ In Stock
$1,334.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with Standard Red/Green Indicator
  • Switch Type - DeviceNET Protocol
  • Coating - Black Polyester Powder Coating
  • Conduit - (2) 1/2” NPT, (1) 3/4” NPT Conduit Connection
  • Mounting Bracket Kit - 2R500 Thru 2R3500, 30-130 mm - 30 mm High-Pinion
100+ In Stock
$1,541.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'T' Port
  • Switch Type - Proximity Reed (Bifurcated) SPST
  • Switch Quantity - 2-Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - (2) 1/2” NPT, (1) 3/4” NPT Conduit Connection
  • Mounting Bracket Kit - THD Series Heavy Duty Actuators
100+ In Stock
$2,184.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way Block Center
  • Switch Type - Mechanical SPDT Silver Plated
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - THD Series Heavy Duty Actuators
100+ In Stock
$2,243.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'T' Port
  • Switch Type - Mechanical DPDT Silver Plated
  • Switch Quantity - 2-Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - THD Series Heavy Duty Actuators
100+ In Stock
$639.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'T' Port
  • Switch Type - 3-Position Control w/o Feedback SR Actuator
  • Switch Quantity - 2-Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - THD Series Heavy Duty Actuators
100+ In Stock
$702.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with Standard Red/Green Indicator
  • Switch Type - Solid State Sensor (P&F NBB2-V3-E2)
  • Switch Quantity - 2-Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - (2) 1/2” NPT, (1) 3/4” NPT Conduit Connection
  • Mounting Bracket Kit - THD Series Heavy Duty Actuators
100+ In Stock
$712.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'T' Port
  • Switch Type - DeviceNET Protocol
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - 2R500 Thru 2R3500, 30-130 mm - 30 mm High-Pinion
100+ In Stock
$1,141.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'L' Port
  • Switch Type - Solid State Sensor (P&F NBB2-V3-E2)
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - 2R500 Thru 2R3500, 30-130 mm - 30 mm High-Pinion
100+ In Stock
$1,303.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way Block Center
  • Switch Type - 3-Position Control w/ Feedback DA Actuator
  • Switch Quantity - 2-Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - THD Series Heavy Duty Actuators
100+ In Stock
$1,355.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'L' Port
  • Switch Type - Mechanical DPDT Silver Plated
  • Switch Quantity - 2-Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - 2R20 Thru 2R300, 30-80 mm - 20 mm High-Pinion
100+ In Stock
$1,679.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'T' Port
  • Switch Type - 3-Position Control w/o Feedback SR Actuator
  • Switch Quantity - 2-Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - (2) 1/2” NPT, (1) 3/4” NPT Conduit Connection
  • Mounting Bracket Kit - THD Series Heavy Duty Actuators
100+ In Stock
$2,046.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'T' Port
  • Switch Type - Solid State Sensor (P&F NBB2-V3-US)
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - 2R500 Thru 2R3500, 30-130 mm - 30 mm High-Pinion
100+ In Stock
$2,402.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'T' Port
  • Switch Type - Solid State Sensor (P&F NBB2-V3-US)
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - THD Series Heavy Duty Actuators
100+ In Stock
$821.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way Block Center
  • Switch Type - 3-Position Control w/ Feedback SR Actuator
  • Switch Quantity - 2-Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - (2) 1/2” NPT, (1) 3/4” NPT Conduit Connection
  • Mounting Bracket Kit - 2R20 Thru 2R300, 30-80 mm - 20 mm High-Pinion
100+ In Stock
$1,143.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with Standard Red/Green Indicator
  • Switch Type - AS-I Protocol
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - 2R20 Thru 2R300, 30-80 mm - 20 mm High-Pinion
100+ In Stock
$1,200.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way Block Center
  • Switch Type - 4-20 mA Transmitter with 2 SPDT Switches
  • Switch Quantity - 2-Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - 2R20 Thru 2R300, 30-80 mm - 20 mm High-Pinion
100+ In Stock
$1,658.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'T' Port
  • Switch Type - Solid State Sensor (P&F NBB2-V3-E2)
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - 2R500 Thru 2R3500, 30-130 mm - 30 mm High-Pinion
100+ In Stock
$1,682.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way Block Center
  • Switch Type - 3-Position Control w/ Feedback DA Actuator
  • Switch Quantity - 2-Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - (2) 1/2” NPT, (1) 3/4” NPT Conduit Connection
  • Mounting Bracket Kit - 2R20 Thru 2R300, 30-80 mm - 20 mm High-Pinion
100+ In Stock
$1,996.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'T' Port
  • Switch Type - Mechanical DPDT Silver Plated
  • Coating - Black Polyester Powder Coating
  • Conduit - (2) 1/2” NPT, (1) 3/4” NPT Conduit Connection
  • Mounting Bracket Kit - 2R20 Thru 2R300, 30-80 mm - 20 mm High-Pinion
100+ In Stock
$2,557.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with Standard Red/Green Indicator
  • Switch Type - 4-20 mA Transmitter
  • Switch Quantity - 2-Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - THD Series Heavy Duty Actuators
100+ In Stock
$76.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'L' Port
  • Switch Type - 3-Position Control w/o Feedback DA Actuator
  • Switch Quantity - 2-Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - 2R500 Thru 2R3500, 30-130 mm - 30 mm High-Pinion
100+ In Stock
$196.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'L' Port
  • Switch Type - Proximity Reed DPDT
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - 2R500 Thru 2R3500, 30-130 mm - 30 mm High-Pinion
100+ In Stock
$234.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'L' Port
  • Switch Type - Solid State Sensor (P&F NBB2-V3-US)
  • Coating - Black Polyester Powder Coating
  • Conduit - (2) 1/2” NPT, (1) 3/4” NPT Conduit Connection
  • Mounting Bracket Kit - THD Series Heavy Duty Actuators
100+ In Stock
$494.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'T' Port
  • Switch Type - Mechanical DPDT Silver Plated
  • Switch Quantity - 2-Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - 2R500 Thru 2R3500, 30-130 mm - 30 mm High-Pinion
100+ In Stock
$1,107.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'L' Port
  • Switch Type - 3-Position Control w/ Feedback SR Actuator
  • Switch Quantity - 5 SPDT Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - 2R500 Thru 2R3500, 30-130 mm - 30 mm High-Pinion
100+ In Stock
$1,213.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'L' Port
  • Switch Type - Solid State Sensor (P&F NBB2-V3-E2)
  • Coating - Black Polyester Powder Coating
  • Conduit - (2) 1/2” NPT, (1) 3/4” NPT Conduit Connection
  • Mounting Bracket Kit - 2R500 Thru 2R3500, 30-130 mm - 30 mm High-Pinion
100+ In Stock
$1,726.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'L' Port
  • Switch Type - Mechanical SPDT Silver Plated
  • Switch Quantity - 3 Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - (2) 1/2” NPT, (1) 3/4” NPT Conduit Connection
  • Mounting Bracket Kit - 2R20 Thru 2R300, 30-80 mm - 20 mm High-Pinion
100+ In Stock
$1,813.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with Standard Red/Green Indicator
  • Switch Type - 3-Position Control w/o Feedback SR Actuator
  • Coating - Black Polyester Powder Coating
  • Conduit - (2) 1/2” NPT, (1) 3/4” NPT Conduit Connection
  • Mounting Bracket Kit - 2R500 Thru 2R3500, 30-130 mm - 30 mm High-Pinion
100+ In Stock
$2,103.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'T' Port
  • Switch Type - Nova V3 Proximity SPDT Silver-Oxide Hermetic Sealed
  • Switch Quantity - 2-Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - (2) 1/2” NPT, (1) 3/4” NPT Conduit Connection
  • Mounting Bracket Kit - THD Series Heavy Duty Actuators
100+ In Stock
$2,287.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way Block Center
  • Switch Type - Mechanical SPDT Silver Plated
  • Switch Quantity - 4 Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - (2) 1/2” NPT, (1) 3/4” NPT Conduit Connection
  • Mounting Bracket Kit - 2R20 Thru 2R300, 30-80 mm - 20 mm High-Pinion
100+ In Stock
$2,473.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'T' Port
  • Switch Type - 3-Position Control w/o Feedback SR Actuator
  • Switch Quantity - 2-Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - 2R20 Thru 2R300, 30-80 mm - 20 mm High-Pinion
100+ In Stock
$162.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with 3-Way 'L' Port
  • Switch Type - Proximity Reed (Bifurcated) SPST
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - 2R500 Thru 2R3500, 30-130 mm - 30 mm High-Pinion
100+ In Stock
$222.00CAD
Does not ship to United States
  • Series - Aluminum Housing, UL Listed NEMA 4/4X, 7, 9
  • Indication - Aluminum Cover with Standard Red/Green Indicator
  • Switch Type - 3-Position Control w/ Feedback DA Actuator
  • Switch Quantity - 5 SPDT Switches
  • Coating - Black Polyester Powder Coating
  • Conduit - 1/2” NPT
  • Mounting Bracket Kit - 2R20 Thru 2R300, 30-80 mm - 20 mm High-Pinion
100+ In Stock
$404.00CAD
Does not ship to United States

Specifications

Actuator Type

  • Double-Acting Actuator (3-Position)
  • Spring Return Actuator (3-Position)

Approvals & Certifications

  • cUL, Class I, Div. 1, Groups C, D, Class II, Div. 1, Groups E, F, G
  • UL: Class I, Div. 1, Groups C, D, Class II, Div. 1, Groups E, F, G

Cable Entry

  • 1/2” NPT
  • 3/4” NPT

Communication

  • AS-i Interface Protocol
  • DeviceNET Protocol: Two Inputs, 100 mA Output

Conduit Connection

  • 1/2” NPT
  • 3/4” NPT

Cover Material

  • Aluminum

Electrical Connectors

  • 4-20 mA Transmitter
  • Terminal Strip

Electrical Contacts

  • Gold-Plated: SPDT
  • Silver-Plated: SPDT & DPDT

Electrical Rating

  • 0.1 A at 120 Vac Resistive: Mechanical SPDT Gold-Plated
  • 0.25 A at 120 Vac, Resistance: Proximity Reed SPST, SPDT, DPDT
  • 0.416 A at 48 Vdc, Resistive: Proximity Reed SPST, SPDT, DPDT
  • 0.5 A at 24 Vdc Resistive/Inductive: Mechanical SPDT Silver-Plated
  • 0.55 A at 24 Vdc, Resistive/Inductive: Proximity Reed (Bifurcated) SPST
  • 1 A at 125 Vac, Resistive: Proximity Reed (with LED) SPST, Nova V3 Proximity SPDT Gold-Bifurcated Hermetically Sealed
  • 1 A at 30 Vdc: Nova V3 Proximity SPDT Gold-Bifurcated Hermetically Sealed
  • 1.5 A at 120 Vac: Proximity Reed (Bifurcated) SPST
  • 1/4 hp at 125 Vac Resistive/Inductive: Mechanical DPDT Silver-Plated
  • 5 A at 250 Vac Resistive/Inductive: Mechanical SPDT & DPDT Silver-Plated, Nova V3 Proximity SPDT Silver-Oxide Hermetically Sealed
  • 5 A at 28 Vdc: Nova V3 Proximity SPDT Silver-Oxide Hermetically Sealed

Enclosure Finish

  • Black Polyester Powder-Coated

Enclosure, Body Material

  • Aluminum

Environmental Protection

  • Hazardous Area
  • IP65
  • IP67
  • NEMA 4
  • NEMA 4X
  • NEMA 7
  • NEMA 9

Indication

  • 3-Way Block Center
  • 3-Way Indicator [L or T Port]
  • Green Status Light
  • Red Status Light
  • Visual Indicator with Twin Shaft Design

Load

  • 0.5 A, Max.
  • 4 A, Max.

Mounting

  • ISO F05 Mounting Pattern
  • VDI/VDE 3845 Shaft

Operating Temperature

  • -25° to 80° C (-13° to 176° F) - for Div. 1
  • -40° to 80° C (-40° to 176° F) - for Div. 2

Output

  • 4-20 mA

Sensor, Probe Connection

  • 2-Wire, 5 to 200 mA, 20-140 V (AC or DC): Solid State Sensor
  • 3-Wire, PNP, 5 to 100 mA at 30 Vdc, Amplified: Solid State Sensor

Sensor, Probe Type

  • Solid State Sensor

Supply Voltage

  • 9-30 Vdc: Transmitter
  • NAMUR 2-Wire, 8 Vdc: Solid State Sensor

Switch Type

  • DPDT
  • Limit
  • Mechanical
  • Proximity Reed
  • Silver-Oxide & Gold-Bifurcated Hermetically Sealed
  • SPDT
  • SPST
show more