PL SERIES

4A Control-Duty Limit Switches

Engineered for dependable 4A control-duty operation, these limit switches combine reinforced PA6 housing, precise SNAP/SLOW contacts, and strong insulation performance to deliver reliable, long-life position sensing in demanding industrial environments.

Suitable for Industries:

Forming Plants

Parcel-Sorting Facilities

Fixture-Position Verification Cells

Key Feature

PL Series

4A Control-Duty Limit Switches

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Model No:

40LS022R

Actuator:

Crank Lever

Action: 

Slow

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Model No:

40LS050RA

Actuator:

Crank Lever Adjustable

Action: 

Slow

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Model No:

40LS150R
Actuator:
Crank Lever

Action: 

Snap

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Model No:

40LS150RA

Actuator:
Crank Lever Adjustable

Action: 

Snap

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Model No:

50LS010

Actuator:
Plunger

Action: 

Snap

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Model No:

50LS01022AR

Actuator:

One Sided Roller – Adjustable

Action: 

Snap

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Model No:

50LS01PR

Actuator:
Roller Plunger

Action: 

Snap

Electrical Specifications

Current Rating

4A

Voltage Rating

415V

Contact Resistance:

< 10 milliohms

Insulation Resistance:

> 200 megaohms at 1000 V DC

General Information

Contact Configuration:
1 Normally Open (NO) + 1 Normally Closed (NC)
Operation:

Slow & Snap 

Certifications:

CE Approved
Operating Temperature
–5°C to +85°C

Material & Build

Material:

Reinforced PA6

Color:

Black

Fields

Applications & Industries

conveyor---bulk-handling-plants

Forming Plants

heavy-duty-safety-shutdown-systems

Parcel-Sorting Facilities

industrial-packaging---automation-

Fixture-Position Verification Cells

Case Study

Real-World Profit Impact

Precision-Controlled Feedback for Industrial Motion

Robotic Tool Calibration

Improved tool-alignment reliability and reduced misposition events by 24% across multi-axis robotic operations. 

A robotics integrator adopted 4A control-duty limit switches for end-effector calibration points. The high insulation integrity and consistent SNAP/SLOW response enabled precise referencing, reducing setup errors and maintaining stable tool engagement throughout long production cycles.

Features

Robust Industrial Control

Advantages that matter for your industrial operations

Structural Rigidity Enhancement

Reinforced PA6 enclosure maintains mechanical strength in repetitive motion zones, supporting stable sensing during prolonged machine duty cycles.

Contact Precision Assurance

Low-resistance terminals deliver dependable electrical continuity essential for accurate position signalling within control-dedicated circuits.

Thermal Performance Stability

Reliable operation across -5°C to +85°C ensures consistent behaviour despite fluctuating ambient industrial temperatures.

Insulation Reliability Strength

200MΩ insulation at 1000V DC guarantees electrical isolation and suppresses leakage risks in sensitive control pathways.

Actuator Flexibility Advantage

Multiple actuator variants enable broad compatibility with diverse machine movements and mounting constraints across automated systems. 

Standards

Certifications & Compliance

ISO Certified

International quality management standards

CE Marking

European conformity certification

RoHS Compliant

Environmentally responsible manufacturing

FAQ

Frequently Asked Questions
What makes the 4A Control-Duty Limit Switches PL Series suitable for precision control circuits?
Their low contact resistance and stable SNAP/SLOW mechanisms ensure accurate signalling for control-level loads.

Yes, the range includes multiple actuator types designed for robotic, mechanical, and manual triggering points.

It provides strong structural rigidity, preventing deformation and ensuring long-term reliability in heavy-motion environments.

Yes, their durable build and stable contact design maintain consistent function even under vibration and mechanical shock

They deliver >200MΩ insulation at 1000V DC, supporting safe control-circuit separation. 

Absolutely, they operate reliably between -5°C and +85°C. 

Yes, dependent on model, offering precise options for varied industrial sensing requirements. 

Their electrical stability, compact design, and clean switching behaviour integrate well with PLC and relay-based controls. 

While not safety-rated, their dual-circuit 1NO1NC layout offers dependable signalling for auxiliary interlock functions.

Their reinforced build and optimized contact design support extended service life in repetitive-duty applications.

Ready to Order?
Get in touch with our sales team or download technical documentation