Product Description
NELES contributes three models. The EN33A05DM is a limit switch for reliable end position detection. The QN45CK02HDM and QN45CR02HRA are position switches; the latter features a roller lever actuator for smooth operation with rotary valves. All NELES units provide positive contact operation and silverâ??alloy contacts for long electrical life.
STONEL dominates the list with the majority of models, covering both limit switch and position switch variants.
Key series include:
EN44A05DM - compact position switch for general feedback.
QG2VP05HDM - heavy-duty actuator with wide temperature range.
QN2NK02SDM, QN33A05HDM, QN35A05HDM robust die cast switches for high cycle and contaminant prone areas.
QN45K03HDM and QN45K03SDM - quick connect terminal block, the latter with enhanced sealing.
QNTRK03SDM track type actuator for linear valve movements.
QX2VB02HDM / SDM, QX2VCK02/03/05HDM, QX2VK02/05HDM - these feature V-style or crankarm cams, offering fine adjustment, high switching capacity, and IP67 equivalent protection for washdown areas.
QX33K02/05HDM - standard- duty switches with easy adjustability.
QX35CK02/05HDM, QX35CR05SRA, QX35K02/05HDM/SDM - designed for large stroke valves, high pressure cleaning, and direct PLC interfacing; some include roller levers and extra sealing for aggressive media.
QX44K02/03HDM - low-profile units for tight spaces, with self-cleaning contacts for high-frequency cycling.
QX45CK02HDM - versatile cam and lever system for field proven reliability.
VALMET supplies two models: QN4XD05HRA (limit switch with visual indicator) and QX2VCR02HRA (limit switch with roller cam, ideal for pulp & paper mills). Both excel in continuous operation and heavyâ??duty conditions.
METSO offers QX2GCR03HRA and QX2GK03HDM premium limit switches with gold plated contacts (for low voltage/hazardous areas) and key type actuators for secure shaft engagement, respectively.
Despite the variety, all models are available with standard conduit entries, adjustable cams, and multiple contact configurations (SPDT, DPDT, etc.). They comply with international standards (e.g., IEC, NEMA) and are rated for wide ambient temperatures. The choice depends on actuator type, required switching current, ingress protection level, and environmental factors whether it's dusty mines, humid coastal plants, or food grade washdown zones.
In summary, this portfolio provides a complete solution for valve position feedback, from basic open/closed indication to precise modulating control. Each model is built to deliver repeatable accuracy, long service life, and easy maintenance. For exact electrical and mechanical specifications, please refer to the individual datasheets. This overview serves as a quick reference to match your application needs with the right model number.
