Siemens PXG3.L Limit switches

Product Detailed Description:

The Siemens PXG3.L is a member of the PXG3 series of compact, direct-mounting, and easy-to-use limit switches from Siemens. These devices are designed for reliable detection of the position or presence of objects in industrial automation applications. The “.L” suffix often indicates a specific variant, such as a particular actuator type (e.g., lever, roller lever, plunger) or electrical connection configuration, but it signifies a device within the PXG3 family.

These limit switches are known for their robust construction, typically featuring a die-cast aluminum housing, which provides good protection against dust and water, often rated IP65 or higher. They operate by mechanically actuating a contact block inside the switch housing when the external actuator (like a lever or roller) is moved by the target object. This action opens or closes electrical contacts, sending a signal to the control system.

Product Parameters (Typical for PXG3 Series - Specific values for PXG3.L variant needed from datasheet):

• Electrical Ratings:

• Nominal Voltage (AC/DC): Often 250 V AC / 30 V DC (check datasheet for specific variant)

• Nominal Current: Typically 5 A per contact (for resistive loads)

• Number of Contacts: Usually 1 NO (Normally Open) + 1 NC (Normally Closed) per switching function, or variations like 2NO, 2NC.

• Contact Material: Silver Nickel (AgNi) for good electrical and mechanical properties.

• Mechanical Parameters:

• Actuator Type: Varies (e.g., Roller Lever, Roller Stem, Plunger, etc. - the “.L” might specify one). Check datasheet for exact actuator and stroke.

• Operating Stroke: Typically a few millimeters (e.g., 1.5 mm to 4 mm, depends on actuator).

• Operating Force: Specified in Newtons (N), varies with actuator type.

• Housing Material: Die-cast Aluminum.

• Degree of Protection: Usually IP65, sometimes IP67 or IP69K depending on the specific design and seals.

• Mounting: Direct mounting, often using a clamp or screws.

• Weight: Typically around 100-150 grams.

• Environmental:

• Operating Temperature: Often -25 °C to +70 °C.

Product Advantages:

• Robust Construction: Die-cast aluminum housing provides durability and good protection against environmental factors (dust, water, oil).

• High Protection Rating: Typically IP65 or higher, making it suitable for harsh industrial environments.

• Compact Design: Saves space in control cabinets and on machines.

• Easy Installation: Direct mounting options simplify installation processes.

• Reliable Operation: Proven electromechanical switching technology offers long service life and reliable position detection.

• Wide Range of Variants: The PXG3 series offers numerous actuator types and contact configurations to suit different application needs.

• Siemens Quality: Backed by Siemens’ reputation for engineering and reliability.

Precautions / Notes:

• Mounting: Ensure the switch is mounted securely and correctly aligned to avoid misoperation or damage to the actuator.

• Actuator Selection: Choose the correct actuator type (levers, rollers, plungers) based on the application requirements (e.g., for edge detection, surface detection, etc.).

• Environmental Limits: Do not exceed the specified operating temperature range or protection class limits.

• Electrical Connection: Ensure proper wiring according to the electrical ratings and diagrams provided in the datasheet. Use appropriate terminals.

• Avoid Overload: Do not exceed the maximum voltage and current ratings for the contacts to prevent damage or unsafe operation.

• Cleaning: If cleaning is necessary, use only recommended methods and cleaning agents, especially for high IP rated versions.

• Refer to Datasheet: Always consult the specific datasheet for the PXG3.L variant you are using for detailed specifications, dimensions, and installation instructions.

Product Applications:

The Siemens PXG3.L limit switch is widely used in various industrial automation applications for position sensing, end-of-travel detection, and presence detection, including:

• Machine Tools: Detecting tool positions, workpiece presence, limit stops.

• Material Handling: Detecting conveyor belt limits, pallet positions, door open/closed status.

• Packaging Machinery: Controlling filling levels, detecting package presence, sequencing operations.

• Automotive Assembly Lines: Monitoring robot positions, detecting component assembly status.

• Food and Beverage Processing: Detecting container levels, conveyor positions (use IP69K variants where necessary for washdown).

• Material Processing: Controlling valves, detecting container levels, monitoring machine movements.

• General Industrial Equipment: Any application requiring reliable, cost-effective mechanical limit detection.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapor

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