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The KLS series detects fully open/closed valve position and transmits it to the control system — a critical component in process safety loops. IECEx and KCs explosion-proof certified, IP67/IP68 rated, with mechanical SPDT and proximity switch options in aluminium or stainless steel housings.
IP67 / IP68
IECEx / KCs
Mech. or Proximity
-40°C to +60°C
IP67 / IP68
Ex db IIC T6 Gb / Ex tb IIIC T80°C Db, IP67
IECEx, KCs (Korean Explosion Proof)
2 × SPDT Mechanical or Proximity (PNP / NPN / 2-wire / P&F / SOLDO)
3-Way Indicator (standard) / 4-piece plastic indicator
Quick-set & both-side contact cam
Top two-fold weatherproof structure
ALDC 12 (non-bushed or bushed housing)
SUS304 (S4), SUS316 (S6), SUS316L (L6)
-20°C to +60°C
-40°C to +60°C
Short (S) or Long +5mm (L)
PF1/2
PF3/4 (KCs) / NPT3/4
BS1, BS2, BS3, BS4, MB1
KLS10, KLS1P, KLS1N, KLS12, KLS13, KLS14 / KLS20, KLS2P, KLS2N, KLS22, KLS23, KLS24
Explosion-Proof Certified
IECEx and KCs (Korean explosion-proof) certified — suitable for hazardous areas including Zone 1 & 2 gas and dust environments.
IP67 / IP68 Protection
Top two-fold weatherproof structure with IP67 standard and IP68 optional for submersion-rated installations.
Multiple Switch Types
Available in mechanical 2×SPDT, PNP proximity, NPN proximity, 2-wire proximity, P&F, and SOLDO proximity configurations.
3-Way Visual Indicator
Clear 3-way position indicator with 4-piece plastic indicator for instant visual confirmation of valve open/closed status.
Quick-Set Cam Mechanism
Both-side contact cam with quick-set adjustment for fast, accurate alignment to valve travel without special tools.
Multiple Body Materials
ALDC12 aluminium die-cast as standard, with SUS304, SUS316, and SUS316L stainless steel options for corrosive environments.
Wide Temperature Range
Standard -20°C to +60°C with low-temperature option down to -40°C for cold climate and cryogenic adjacent service.
Flexible Bracket Mounting
Five bracket options (BS1–BS4, MB1) for direct mounting to all major pneumatic and electric actuator platforms.
Flexible Cable Entry
PF1/2 for weatherproof KLS1x models; PF3/4 or NPT3/4 for explosion-proof KLS2x models.
Short & Long Shaft Options
Short shaft standard; long shaft (+5mm) option available to accommodate different actuator shaft protrusion depths.
IP67 / IP68
Ingress Protection
IECEx / KCs
Explosion Proof
Mech & Prox
Switch Options
-40°C to +60°C
Temperature Range
Fast Dispatch
Availability