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Description
KW4-3Z-3 Micro Limit Switch Lever Arm 28mm Long with 3 Terminals 250VAC/125VDC 5A - 10 PackKW4 3Z 3 Micro Limit Switch Key Features Model: KW4 3Z 3 Actuator: 28mm long hinge lever arm Terminals: 3 pin configuration for Normally Open (N O) and Normally Closed (N C) circuits Electrical Rating: 5A at 125VDC 250VAC Function: Snap action switch designed to control the movement of mechanical parts in electrical systems. Replaces Cross Reference Part Numbers KW11 3Z KW11 3Z 3 SS 01 SS 5 V 15 1C25 D2SW 3L2H WS2 WBZ3L2B5 LXW5 11G1 Z 15GW22 B
KW4-3Z-3 Micro Limit Switch
Key Features
- Model: KW4-3Z-3
- Actuator: 28mm long hinge lever arm
- Terminals: 3-pin configuration for Normally Open (N/O) and Normally Closed (N/C) circuits
- Electrical Rating: 5A at 125VDC / 250VAC
- Function: Snap-action switch designed to control the movement of mechanical parts in electrical systems.
Replaces / Cross-Reference Part Numbers
- KW11-3Z
- KW11-3Z-3
- SS-01
- SS-5
- V-15-1C25
- D2SW-3L2H
- WS2-WBZ3L2B5
- LXW5-11G1
- Z-15GW22-B
Compatibility & Fitment
- Designed for use in a wide range of applications including appliances, 3D printers, CNC mills, and other general-purpose electrical automation projects.
- Fitment depends on matching physical dimensions, actuator type (28mm lever), and electrical specifications (5A, 125/250V).
When to Replace
- Switch fails to actuate or operates intermittently.
- The circuit remains open or closed regardless of lever position.
- Visible damage, such as a broken lever or cracked housing.
- Audible click is absent or feels inconsistent during actuation.
Installation Tips
- Disconnect all power to the equipment before beginning installation.
- Identify and connect wires to the appropriate terminals: Common (C), Normally Open (NO), and Normally Closed (NC).
- Ensure the mechanical component correctly engages and releases the lever without excessive force or over-travel.
- Securely mount the switch body to prevent movement during operation.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Perfectly engineered
Style: Dinosaur
Amazing quality and user friendly. We love this water pic so much! It’s the perfect size and ergonomics for my 6 year old.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
★★★★★ 5
Worth every penny
Style: Unicorn
My kids are actually excited to floss their teeth and my dentist and I couldn’t be happier. Great tool and worth every penny.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
★★★★★ 5
Works great, fun to use!
Style: Unicorn
My daughter loves it and looks forward to using it every night!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 6, 2026
★★★★★ 5
Cute
Style: Dinosaur
My daughter loves it. It’s gentle and seems to clean her teeth well.
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Reviewed in the United States on December 27, 2025
★★★★★ 4
Cute idea! Very powerful
Style: Dinosaur
I love the concept of it, especially for little ones that like to shove toys in their mouths. But boy is it MESSY, lol. Water will absolutely get everywhere even if you put it on the lowest setting so I just let my kids hold it in the bath. They mostly suck in it so I'm not sure if it's actually flossing their teeth, but that's more of a user error, not a product error. I tried it on myself and it's pretty powerful even for an adult. It definitely functions well. The size is just perfect for an adult, kind of big for a toddler. Overall it's great value for your money in my opinion.
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Reviewed in the United States on January 27, 2026