Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 1LS1-4PG |
| Manufacturer | Honeywell |
| Product Type | Limit Switch |
| Actuator Type | Side Rotary, Fixed Lever with Steel Roller |
| Output Configuration | SPDT (Single Pole Double Throw) – 1NO + 1NC |
| Contact Current AC Max | 10 A |
| Contact Voltage AC Max | 480 V |
| Contact Current DC Max | 800 mA |
| Contact Voltage DC Max | 550 V |
| Operating Force Max | 0.51 N·m |
| Electrical Connection | PG13.5 Conduit |
| Housing Material | Zinc Die-Cast |
| Housing Seal Rating | NEMA 1, 3, 4, 6, 13; IP67 |
| Operating Temperature | -30°C to 120°C |
Main Features and Advantages
Industrial-Grade Durability and Sealed Construction: The Honeywell 1LS1-4PG is built to thrive in harsh conditions. Its robust zinc die-cast housing provides exceptional mechanical strength and protects the internal switching mechanism from physical impact. Furthermore, the Honeywell 1LS1-4PG boasts a sealed construction that is oil-tight, water-tight, and dust-tight, meeting stringent NEMA 1, 3, 4, 6, and 13 enclosure ratings as well as IP67. This makes the Honeywell 1LS1-4PG ideal for outdoor and indoor applications where it may be exposed to washdowns, coolant, or particulate matter, ensuring consistent performance over millions of operations.
Versatile Actuation and Precise Control: Featuring a side-rotary actuator with a fixed lever and a durable steel roller, the Honeywell 1LS1-4PG is perfectly suited for position-sensing applications involving cam-operated mechanisms or moving machine parts. The roller lever actuator on the Honeywell 1LS1-4PG reduces friction and wear, providing smooth, consistent actuation. With an electrical rating of 10 A at 480 VAC and its SPDT (1NO/1NC) double-break contact configuration, the Honeywell 1LS1-4PG offers reliable switching of two independent circuits, providing a versatile and dependable solution for machine control and safety interlock functions.
Compact Design and Ease of Installation: The Honeywell 1LS1-4PG is designed with space constraints in mind, offering a compact footprint that allows for installation in applications where larger switches cannot be accommodated. Despite its small size, the Honeywell 1LS1-4PG does not compromise on performance or reliability. It includes practical features such as captive screws to prevent loss during installation and maintenance. The field-adjustable operating characteristics provide flexibility, enabling the Honeywell 1LS1-4PG to be fine-tuned for specific application requirements, making it a versatile choice for system designers and maintenance engineers.
Application Fields
The Honeywell 1LS1-4PG is a versatile component widely used across numerous industrial sectors for precise position sensing and machine control.
Machine Tool and Industrial Automation: In the machine tool industry, the Honeywell 1LS1-4PG is critical for monitoring the presence of parts, detecting the position of machine slides and tables, and ensuring the proper closure of panels and doors for safety. Its compact size and reliable operation make it an excellent choice for modern, space-constrained manufacturing equipment.
Material Handling and Conveyance: The Honeywell 1LS1-4PG is extensively used in material handling systems. It provides position sensing in overhead doors, dock locks, and automated conveyance systems. The robust roller lever actuator of the Honeywell 1LS1-4PG is ideal for detecting the presence of packages on assembly lines, carousels, and conveyor systems, ensuring smooth and efficient material flow.
Valve Actuation and Process Control: In process industries such as power generation, wastewater treatment, and oil and gas, the Honeywell 1LS1-4PG serves as a reliable position indicator for electric valves. Its ability to perform in demanding outdoor conditions makes the Honeywell 1LS1-4PG a trusted choice for monitoring valve positions in pipelines, refineries, and industrial plants, contributing to safe and efficient process control.
Specialty Machinery and General Industrial Use: Beyond these primary sectors, the Honeywell 1LS1-4PG is also deployed in food and beverage processing for bottling and canning line monitoring, as well as in a wide array of packaging, assembly, and testing equipment, proving its adaptability as a general-purpose limit switch for almost any automation challenge.
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