Limit Switches


APL Series: CSA Approved Limit Switches

The Triac® APL Series Limit Switches feature high quality, easy to use, multiple option switch boxes for rotary actuators. Their die-cast aluminum housings are powder coated for corrosion resistance and feature open/close visual indicators, quick-set cams and easy access terminal strips. These economical switch boxes offer numerous switch, sensor and transmitter options to handle most applications found in today’s process and industrial markets. 
Features: Die-cast aluminum powder coated enclosure | Captive cover bolts | NAMUR mount brackets | Quick-set spring loaded cam | Dome visual indicator (3-way available) | Up to four switches on APL 3, 4 and 5 and various mechanical, proximity and reed type sensors, feedback potentiometers and 4-20mA transmitter options.

  • APL 2 Series “Compact” Switch
    • CSA Approved, Type 4X
    • Solid, compact, low-profile design
    • Dual 1/2" NPT conduit entries, 8 pts. on terminal strip
    • Ambient temperature range -20°C to 80°C
    • (2) SPDT mechanical micro switches
    • APL-218 (2) SPDT gold plated micro switches make it useful as a simple device for intrinsically safe applications.
  • APL 3 Series Limit Switch
    • CSA Approved, Type 4X
    • Rugged and flexible design
    • Dual 1/2” NPT conduit entries, 8 pts. on terminal strip
    • Ambient temperature range -20°C to 80°C
  • APL 4 Series Limit Switch
    • CSA Approved, Class I, Division 1, Groups C & D T6 Class I, Zone 1, AEx d IIB, T6, Ex d IIB, T6, Type 4X/6, IP 66/67/68
    • ATEX/IECEX E Ex d IIB T6 and ATEX certified rating available (APL-410N-ATEX)
    • Dual 3/4” NPT conduit entries, 8 pts. on terminal strip
    • Only enclosure capable of housing (2) DPDT Switches
    • Ambient temperature range -20°C to 60°C
  • APL 5 Series Limit Switch
    • CSA Approved: Class I, Div 1, Grps B, C & D T6; Class II, Div 1, Grps E, F, G; Class III - Class I, Zone 1, AEx d IIC, T6; Class II, Zone 21, AEx tb IIIC T65°C Db; Ex d IIC, T6; Ex tb T65°C Db; Type 4X/6, IP66/67
    • ATEX/IECEX E Ex d IIB T6 and ATEX certified rating available (APL-510N-ATEX)
    • Available with Stainless Steel enclosure
    • Dual 3/4” NPT conduit entries, 8 pts. on terminal strip
    • Screw-on enclosure lid with spring loaded captive cover bolts - unique design to hold bolts inside cover
    • Ambient temperature range -50°C to 70°C
  • APL 9 Series Stainless Steel Limit Switch
    • Type 4X, IP 67 (CSA Pending)
    • 304 Stainless Steel Enclosure
    • Stainless Steel shaft & captive cover bolts
    • NAMUR stainless steel mounting bracket included
    • Ambient temperature range -20°C to 80°C

EX, EC, ES, EY, EW Series: UL Listed Limit Switches

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 | various models and options 

  • EX Series:
    • Aluminum Housing
    • NEMA 4, 4X, 7 and 9 applications
    • Up to three conduit entries
  • EC/ES Series
    • Available in Aluminum (EC) or 316SST (ES) Housing
    • UL Listed type 4, 4X, Weather-Proof
    • Dual threaded conduit entries with extra terminals
  • EY Series
    • Low Copper Aluminum Housing
    • UL Listed type 4, 4X, 7 & 9, Explosion-Proof & Weather-Proof
    • Up to four conduit entries with extra terminal options
  • EW Series
    • L316 Stainless Steel Housing
    • UL Listed type 4, 4X, 7 & 9, Explosion-Proof & Weather-Proof
    • Up to four conduit entries with extra terminal options

Special Application Limit Switches
  • HUBAS200EA13A Limit Switch
    AS-i Omega, AS-i protocol with integral solenoid valve, limit switch, AS-i interface
  • HUBDB500GA45A Limit Switch
    3-position dribble control system for spring return actuators
  • HUBDA500GA35A Limit Switch
    3-position control system for double acting actuators (90º or 180º rotation)
  • Low Pro Sandwich Style Limit Switch - L2F14230
    Low profile switch for use with other top mounted accessories
  • Puck Style Low Pro Switch
    Available with 2 solid state sensors or AS-i protocol