Eaton Limit Switch - 2NO, Plunger
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Tameson UKEaton Industries Yellow Ls Limit Switch - 266120
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Rapid Online - Rapid Electronics Ltd.Eaton 266120 LS-20 limit switch 400V 6A Tappet IP66/IP67
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2Z Limit Switch Slow Switching Plastic LS 266120£13.20 delivery£83.39Visit shop →
EATON LS-20 Limit switch£13.20 delivery£159.73Visit shop →
Product Information
Full details
This Eaton Moeller series LS Position Switch (Model 266120) is designed for robust industrial applications requiring reliable position detection and safety interlocking. Its key benefit lies in its durability and suitability for harsh environments, featuring an IP66/IP67 rating. A potential caveat for some users might be its basic, expandable nature, requiring additional configuration for advanced functions. It offers 2 normally open (NO) contacts and a plunger actuator, housed in insulated plastic for safety and durability.
All features
| Series | LS-20 |
|---|---|
| Model Part Number | 266120 |
| Brand | Eaton |
Extended Product Information
FAQs
What does IP66/IP67 rating mean for this switch?
IP66 provides protection against dust ingress and powerful water jets. IP67 provides protection against temporary immersion in water (up to 1 meter for 30 minutes). This makes the switch suitable for very demanding and wet industrial environments.
Can this switch be used in a circuit that requires a normally closed (NC) contact?
No, this specific model only provides 2 normally open (NO) contacts. You would need a different limit switch model if a normally closed contact is required for your application.
What is the operating temperature range for this Eaton limit switch?
The switch is designed to operate reliably in temperatures ranging from -25 °C to +70 °C.
How are the wires connected to the switch?
The switch utilizes Cage Clamp terminal connections for secure and tool-free wire termination.
What is the maximum voltage and current this switch can handle?
The switch has a voltage rating of 400 V and a current rating of 6 A.
What type of actuator does this switch have?
This model features a rounded plunger actuator, designed for detecting linear movement.
Can this switch be expanded or modified for more complex functions?
The description mentions it is 'expandable,' suggesting it might be compatible with additional modules or accessories from the Eaton Moeller series LS line for added functionality, though specific expansion details would require consulting the manufacturer's full product documentation.
Troubleshooting
Switch does not detect object actuation.
Verify the object is properly aligned to depress the plunger. Check for obstructions preventing plunger movement. Ensure the switch is securely mounted and not loose. Confirm wiring to the NO contacts is correct.
Electrical circuit does not open when plunger is depressed.
Check the wiring connections to the NO terminals. Verify the voltage and current are within the switch's ratings (400V / 6A). If the switch is new, test continuity across the contacts. If it's used, the contacts may be worn or damaged, requiring replacement.
Switch appears damaged or is not functioning after exposure to harsh conditions.
Visually inspect the housing and plunger for cracks or damage. While rated for harsh environments, extreme impacts or chemical exposure beyond specifications can cause failure. Replace the switch if damage is evident.
Loose electrical connections.
Ensure the Cage Clamp terminals are securely holding the wires. Re-insert wires firmly and ensure the clamp mechanism is engaged properly.
Pros and Cons
Pros
- Highly durable and suitable for demanding industrial settings.
- Excellent protection against dust and water ingress (IP66/IP67).
- Reliable performance in a wide temperature range.
- Simple plunger actuation mechanism.
- Secure and easy-to-use Cage Clamp connections.
Cons
- Basic device may require additional components for advanced functionality.
- Limited to 2 normally open contacts; not suitable for applications needing normally closed contacts directly.
- Plunger actuator has a fixed travel path; may not suit all sensing needs.
- Dimensions might be a consideration for very space-constrained applications.
- Requires proper electrical installation and knowledge.
Setup, Compatibility & Care
Setup
- Mounting: Securely mount the switch using appropriate hardware in the desired location, ensuring the plunger will be actuated by the moving part.
- Wiring: Connect the wires to the Cage Clamp terminals. The switch provides 2 normally open (NO) contacts. Ensure wiring adheres to local electrical codes and safety standards. The voltage rating is 400 V and current rating is 6 A.
- Actuation Check: Manually depress the plunger to ensure it moves freely and actuates the internal contacts.
Compatibility
- Voltage/Current: Compatible with control circuits rated up to 400 V and 6 A.
- Environment: Suitable for industrial environments with dust, water, and a wide temperature range (-25 °C to +70 °C).
- Integration: Can be integrated into existing control systems using its NO contacts. Its expandable nature may allow for future additions with compatible components.
Care
- Cleaning: Clean the exterior of the switch with a dry or slightly damp cloth. Avoid using harsh solvents or abrasive cleaners which could damage the plastic housing or seals.
- Inspection: Periodically inspect the plunger for free movement and ensure the housing is free from significant damage. Check electrical connections for tightness.
- Environment: While IP66/IP67 rated, avoid prolonged exposure to extreme conditions beyond the specified temperature range.