Honeywell 1LS1-4PG Limit Switch – MICRO SWITCH Heavy-Duty Series
When a limit switch fails on a production line, the consequences are immediate and costly: uncontrolled actuator travel, mechanical collisions, conveyor jams, and emergency shutdowns that halt output for hours. In safety-critical applications — from automotive stamping presses to food-grade packaging lines — the absence of a reliable position-sensing device is not merely an inconvenience; it is a direct threat to equipment integrity and operator safety. The Honeywell 1LS1-4PG Limit Switch is engineered precisely to eliminate that risk, providing robust, repeatable position detection that keeps industrial machinery operating within its designed parameters.
Within Honeywell’s renowned MICRO SWITCH heavy-duty limit switch family, the 1LS1-4PG occupies a core position as a general-purpose, top-actuated unit designed for demanding industrial environments. Honeywell’s MICRO SWITCH brand has been a global benchmark for electromechanical sensing since 1950, and the 1LS1-4PG continues that legacy — trusted by OEMs and system integrators across North America, Europe, and Asia-Pacific for its consistent performance in high-cycle, high-vibration applications.
Technical Specifications
- Brand: Honeywell (MICRO SWITCH)
- Model / Part Number: 1LS1-4PG
- Series: MICRO SWITCH Heavy-Duty Limit Switch
- Actuator Type: Top push-plunger (roller lever variants available in series)
- Enclosure Rating: Heavy-duty industrial housing
- Contact Configuration: SPDT (Single Pole Double Throw) — NO / NC
- Weight: Approx. 680 g
- Mounting: Standard industrial panel / machine frame mounting
- Application Standard: Suitable for IEC and NEMA industrial control environments
Note: For complete electrical ratings, operating force, and dimensional drawings, please refer to the official Honeywell MICRO SWITCH 1LS1 series datasheet or contact Konmask.com for documentation support.
Key Features & Benefits
- Heavy-Duty Construction: Robust housing withstands mechanical shock, vibration, and harsh industrial environments without compromising switching accuracy.
- SPDT Contact Reliability: Snap-action mechanism ensures clean, bounce-free switching for both normally open and normally closed circuits.
- High Repeatability: Consistent operating point across millions of cycles — critical for precision positioning in automated machinery.
- Versatile Integration: Compatible with standard PLC digital input modules and relay control circuits, simplifying system design.
- Proven Honeywell MICRO SWITCH Pedigree: Backed by decades of field-proven performance in global industrial installations.
- Broad Environmental Tolerance: Designed to perform reliably across a wide temperature range and in the presence of dust, oil mist, and coolant splash typical of machine tool environments.
Industry & Equipment Applications
- Machine Tools & CNC Machining Centers: Axis travel limit detection, tool changer position confirmation, door interlock circuits.
- Conveyor & Material Handling Systems: Belt position sensing, pallet stop confirmation, diverter gate position feedback.
- Automotive Manufacturing: Press stroke limit detection, fixture clamping confirmation, transfer line position sensing.
- Packaging Machinery: Carton flap detection, fill-level position sensing, sealing jaw travel limits.
- Crane & Hoist Systems: Over-travel protection, hook position sensing, load block limit detection.
- Food & Beverage Processing: Hygienic-area door interlocks, conveyor jam detection, filling station position control.
System Integration & Compatible Parts
The Honeywell 1LS1-4PG is designed for seamless integration into standard industrial control architectures. It interfaces directly with:
- PLC digital input modules (Siemens S7, Allen-Bradley ControlLogix/CompactLogix, Mitsubishi MELSEC, Omron CJ/CS series)
- Safety relay modules requiring SPDT dry-contact inputs
- Conventional relay control panels and motor starter circuits
- DCS field I/O marshalling cabinets
For complete system builds, Konmask.com also supplies complementary Honeywell MICRO SWITCH accessories including actuator arms, mounting brackets, and wiring accessories. Contact us for a full BOM review.
Our Quality Assurance Process
At Konmask.com, every Honeywell 1LS1-4PG unit we supply undergoes a structured verification process before shipment:
- Source Verification: Parts are sourced from authorized distributors and verified supply chains to ensure genuine Honeywell MICRO SWITCH product.
- Visual & Marking Inspection: Each unit is inspected for correct part number markings, housing integrity, and actuator condition.
- Documentation Package: Certificate of conformance and traceability documentation available upon request.
- Secure Packaging: Anti-static, moisture-resistant packaging with ESD protection for sensitive contact assemblies.
How to Order
- Submit an Inquiry: Use the contact form on this page or email support@konmask.com with your required quantity and delivery timeline.
- Receive a Quotation: Our technical sales team will respond within 1 business day with pricing, lead time, and availability confirmation.
- Order Confirmation: Confirm your purchase order; we accept T/T bank transfer, PayPal, and other B2B payment methods.
- Shipment & Tracking: We ship via DHL, FedEx, UPS, and sea freight for bulk orders. Full tracking information provided upon dispatch.
- After-Sales Support: Our engineering team is available for post-delivery technical queries and system integration guidance.
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on industrial control components — PLCs, DCS modules, limit switches, sensors, and drives — giving us deep product knowledge your generalist distributor cannot match.
- Global B2B Supply: Serving engineering teams, MRO procurement departments, and system integrators across Asia, Europe, the Middle East, and the Americas.
- Fast Response: Quotations within 24 hours; urgent orders handled with priority processing.
- Competitive Pricing: Direct sourcing relationships enable us to offer competitive pricing on genuine parts without compromising authenticity.
- Technical Support: Our team includes experienced automation engineers who can assist with part selection, cross-referencing, and system compatibility questions.
Frequently Asked Questions
- Q: Is the Honeywell 1LS1-4PG still in production?
- A: The 1LS1-4PG is part of Honeywell’s established MICRO SWITCH heavy-duty limit switch range. Please contact Konmask.com to confirm current availability and any recommended replacement options if the part has been superseded.
- Q: What is the difference between the 1LS1 and 1LS2 series?
- A: The 1LS1 and 1LS2 series differ primarily in actuator configuration and housing options. The -4PG suffix denotes specific actuator and conduit entry options. Contact our technical team for a detailed comparison.
- Q: Can the 1LS1-4PG be used in safety (SIL) applications?
- A: For safety-rated applications, please consult the official Honeywell MICRO SWITCH safety documentation and confirm SIL suitability with your functional safety engineer. Konmask.com can provide available documentation to support your assessment.
- Q: Do you supply in small quantities or only bulk orders?
- A: Konmask.com accommodates both single-unit MRO replacement orders and large-volume OEM/project orders. Minimum order quantities and pricing tiers are provided in your quotation.
- Q: How do I verify the part is genuine Honeywell?
- A: We supply parts with full traceability documentation. Upon request, we can provide certificates of conformance and sourcing records to support your incoming inspection process.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
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