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• High-Quality Industrial Grade Micro Switch
• 15A High Current Capacity
• Long Lever Arm Actuator Design
• Precise Snap Action Switching
• Fast Response and Reliable Performance
• Durable Construction for Long Service Life
• Compact and Easy to Install
• Suitable for Automation and Safety Systems
• High Electrical and Mechanical Endurance
• Ideal for Industrial and Home Appliance Applications
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The SW-121 Micro Switch is a premium-quality snap-action micro switch equipped with a long lever arm actuator for enhanced sensitivity and extended operating range. Designed for applications requiring precise position detection and reliable switching, this switch offers excellent performance in industrial, commercial, and consumer equipment.
With a 15A current rating, the SW-121 is capable of handling demanding electrical loads while maintaining stable and dependable operation. The lever arm mechanism allows activation with minimal force, making it ideal for automation systems, limit detection, safety interlocks, and mechanical control applications.
Its durable housing and high-quality internal contacts ensure long-lasting performance even under frequent operation. The compact design enables easy integration into a wide variety of equipment and control systems.
Whether used in machinery, appliances, robotics, or industrial automation, the SW-121 delivers accurate switching performance and exceptional reliability.
Product Type: Micro Switch
Model: SW-121
Switch Type: Snap Action Micro Switch
Actuator Type: Long Lever Arm
Rated Current: 15A
Contact Configuration: SPDT (COM / NO / NC)
Operating Mechanism: Snap Action
Mounting Type: Screw Mount Compatible
Terminal Type: Quick Connect / Solder Terminals
Housing Material: High-Strength Engineering Plastic
Contact Material: High Conductivity Metal Alloy
Electrical Rating: Suitable for AC and DC Applications
Application: Detection, Control, Safety and Automation Systems
1 × SW-121 Lever Type Micro Switch (15A Rated)
The SW-121 supports up to 15A current, making it suitable for industrial and high-load applications.
The lever arm increases sensitivity and allows the switch to be activated with less force and greater travel distance.
Yes, it includes COM, NO (Normally Open), and NC (Normally Closed) terminals.
Yes, the SW-121 is widely used for limit detection and position sensing applications.
Absolutely. Its precise snap-action mechanism makes it ideal for industrial automation and machine control systems.
• 6×6×9.5mm Long Stem SMD Design
• Surface Mount (SMD) Installation
• Momentary Push Button Operation
• Compact and Space-Saving PCB Mounting
• Strong Tactile Feedback
• Reliable Performance with Long Life
• Ideal for Modern Compact Electronics
• 4 Input – 4 Output (4 In 4 Out) Design
• Heavy-Duty Lever Lock Mechanism
• Built-in Mounting Holes for Secure Installation
• Reusable and Tool-Free Operation
• Strong and Safe Electrical Distribution
• Compact Design for Junction Boxes
• 6×6×11/12mm Extra Long Shaft Design
• Momentary Push Button Operation
• 4-Pin Through-Hole PCB Mount
• Very Long Actuator for Thick Panels
• Strong Tactile Click Feedback
• Durable Construction for Long-Term Use
• Ideal for Deep Panel Electronics
• 6×6×9.5mm Extra Tall Button Design
• Momentary Push Button Operation
• 4-Pin Through-Hole PCB Mount
• Long Actuator for Deep Panel Applications
• Strong Tactile Click Feedback
• Durable Plastic Housing with Metal Contacts
• Reliable Performance for Repeated Use
Industrial-Grade Push Button: Designed for control panels and machinery.
Two Operation Modes Available: Push (momentary) & ON/OFF (latching).
Standard 22mm Mount Size: Fits most industrial control panels.
NC & NO Contact Support: Flexible wiring for different applications.
Durable Metal & ABS Construction: Long life and reliable performance.
Multiple Color Options: Red, Green, Blue, Yellow, Grey (as shown).
Standard 12×12×12 mm Size: Compatible with common PCB layouts and button caps.
Momentary Push-Button Action: Makes contact only while pressed for precise switching.
Durable Mechanical Contacts: Long operating life for repeated use.
Solder Pin Terminals: Easy PCB mounting for electronics projects and repairs.
Firm Tactile Feedback: Clear click response for reliable operation.
Wide Application: Suitable for DIY electronics, appliances, control panels, and embedded systems.
• Premium Quality Tactile Push Button Switch
• Compact 12×12×11mm Design
• Fast and Responsive Actuation
• Clear Tactile Feedback for Accurate Operation
• Durable Internal Contact Structure
• PCB Mount Configuration
• Long Mechanical Service Life
• Reliable Electrical Performance
• Easy Installation and Soldering
• Suitable for Professional and DIY Electronics
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