Snap-Action Switching for Compact Equipment
Miniature Micro Switches
DAIER miniature micro switches include direct, short-lever, long-lever, arc-lever and roller actuator styles for compact equipment. Explore KW4, WK1 and WK3 models for mechanism and electronic assembly requirements.
- Product Range KW4, WK1 & WK3
- Actuator Styles Plunger, Lever & Roller
- Listed Circuit SPDT Contacts
- Operation Momentary Snap Action
Miniature Micro Switch Models
KW4-Z1F
KW4-Z1F mini micro switch operating temperature is -25℃~+85℃
KW4-Z3F
KW4-Z3F 25t85 micro switch lever is long lever
WK1-1
WK1-1 micro switch pcb ambient temperature used 〈85% RH
KW4-Z2F
KW4-Z2F small micro switch lever is short lever
KW4-ZDF
KW4-ZDF long lever micro switch package size of the subminiature switch is ideal for applications where space on the equipment is at a premium.
KW4-Z4F
KW4-Z4F spdt lever switch lever is arc lever
KW4-Z5F
KW4-Z5F roller microswitch lever is roller lever
KW4-OZ
KW4-OZ is ideal for applications where space on the equipment is at a premium without lever
WK3-1
WK3-1 micro switch connection switch operation is OFF - momentary ON
Selection Guide
Compare Miniature Micro Switches
KW4 models offer a choice of actuator shapes, alongside WK1 and WK3 switches for other assembly layouts. Start with the mechanism movement, then compare connections and mounting.
Actuator & Travel
KW4-Z1F takes direct actuation. Short and long levers change the reach; arc and roller levers provide different contact profiles for moving parts.
Circuit & Load
The listed product tables describe momentary SPDT operation. Select the required COM, NO and NC connections and match the switching rating to the circuit voltage, current and load type.
Mounting & Terminals
Compare body dimensions, mounting holes and terminal orientation. For board-mounted designs, the WK1-1 drawing provides a reference for pin spacing and board clearance.
Actuator shape and terminal layout are useful starting points when comparing a new design with an existing switch.
Applications
Typical Switch Applications
Compact switching for moving mechanisms and electronic assemblies.
Compact Position Detection
Use direct or lever actuation to detect movement or position where assembly space is limited.
Cam & Sliding Mechanisms
Arc and roller levers provide different contact profiles for cams and sliding components.
Electronic & PCB Assemblies
Match switch mounting, terminal spacing and actuator clearance to the board, wiring and enclosure layout.
Common Questions
Micro Switch FAQs
Answers about actuators, connections, replacement and ordering.
For a Project Enquiry
Have a model code or reference photo? Send it with the required quantity.
Send Project DetailsKW4-Z1F has no lever; KW4-Z2F has a short lever. KW4-Z3F and KW4-ZDF use long levers, KW4-Z4F an arc lever, and KW4-Z5F a roller lever. The shape and reach determine the contact point.
The switch changes contact state when the mechanism presses the actuator and returns after release. Operating point and travel determine where that change occurs.
SPDT provides a common terminal that changes between normally closed and normally open paths. Use the model diagram to identify COM, NC and NO for the required circuit.
Compare pin spacing, terminal direction, switch support and clearance around the actuator. These dimensions determine how the switch fits the board and enclosure.
Compare the full model drawings rather than the category name. Body dimensions, mounting holes, terminals and actuator position may differ. Send the existing code or a reference photo for a replacement enquiry.
Discuss Your Miniature Micro Switch Requirements
Send the model code and quantity for a quotation. For a new design or replacement, add a drawing or photo and a brief description of the application.
Prefer email? sales1@chinadaier.com