KW4-3Z-3 Micro Limit Switch 3-Pin Dustproof 5-Pack | 3D Printer
KW4-3Z-3 Micro Limit Switch 3-Pin Dustproof 5-Pack | 3D Printer
KW4-3Z-3 Micro Limit Switch – 5-Pack for 3D Printers
Keep your 3D printer running with precision and reliability. This 5-pack of KW4-3Z-3 Micro Limit Switches delivers high current capacity, a dual-pole breaking design, and robust dustproof construction — everything you need for accurate endstop control in your 3D printer setup.
Why Choose the KW4-3Z-3 Micro Limit Switch?
- Dustproof Protection: Sealed housing keeps dust and debris out, ensuring consistent performance even in workshop environments.
- High Current Capacity: Rated for 125V/250V high-current applications, providing dependable switching in demanding setups.
- Dual-Pole (Double Connection) Breaking Form: Provides precise, simultaneous circuit interruption for reliable endstop triggering.
- High-Temperature Resistant: Built from durable ABS material that withstands elevated operating temperatures without warping or degrading.
- 3-Pin Design: Easy wiring with standard COM, NO, and NC terminals — compatible with most popular 3D printer control boards.
- Value 5-Pack: Get five switches in one order — perfect for maintaining spares or equipping a full XYZ axis setup.
Specifications
| Model | KW4-3Z-3 (SS5GL) |
| Pin Count | 3-Pin (COM / NO / NC) |
| Breaking Capacity | High Current Type |
| Breaking Form | Double Connection (Dual-Pole) |
| Protection Type | Dustproof |
| Voltage Rating | 125V / 250V |
| Material | ABS |
| Item Shape | Rectangular |
| Quantity | 5 Pieces |
| Country of Origin | Made in Mainland China |
What's in the Box?
- 5 × KW4-3Z-3 Micro Limit Switch (3-Pin)
Note: Due to lighting conditions and shooting angles, slight color variation may occur. Please allow 0–1 cm tolerance due to manual measurement.
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Frequently Asked Questions
Q: What 3D printers are the KW4-3Z-3 micro limit switches compatible with?
A: The KW4-3Z-3 micro limit switch is a standard 3-pin endstop switch widely compatible with most popular FDM 3D printers including those using RAMPS, SKR, and similar control boards. Its universal design makes it a go-to replacement or upgrade for X, Y, and Z axis endstops.
Q: Do I need any special tools to install these micro limit switches?
A: Minimal assembly is required. You will need a basic screwdriver and wire crimping tools to connect the 3-pin terminals. The switches feature clearly labelled COM, NO (Normally Open), and NC (Normally Closed) pins for straightforward wiring.
Q: Why is it beneficial to buy a 5-pack of KW4-3Z-3 switches?
A: Purchasing a 5-pack ensures you have replacement switches on hand whenever needed, avoiding printer downtime. It's also ideal for outfitting all three axes (X, Y, Z) of a single printer while keeping extras as spares — saving both time and money.
Q: Are these switches dustproof and suitable for workshop environments?
A: Yes. The KW4-3Z-3 features a dustproof protective housing and is built from high-temperature resistant ABS material, making it reliable in workshop or maker-space environments where dust and heat are common factors.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.