±0.05 mm operating-point repeatability for precision inspection equipment and metering instruments.
- Rated current
- 5A
- Rated voltage
- 250VAC
- Ingress protection
- IP40
- Life
- 5,000,000
- model: KW10-3Z
- series: KW10
KW4-3Z12.8 × 5.8 × 6.5 mm
KW4-3Z Snap Action Switch
KW4-3Z
Compact snap-action structure with contact bounce under 3 ms, ideal for control loops needing stable digital signals.
- Rated current
- 3A
- Rated voltage
- 125VAC
- Circuit
- SPDT
- Ingress protection
- IP40
- Termination
- PCB
- Actuator
- Pin plunger
- Contact bounce < 3 ms for stable signalling
- Spring-stress simulation makes life predictable
- Operating point repeatability to ±0.05 mm
- Gold-contact low-level signal versions available
Overview
Overview
Compact snap-action structure with contact bounce under 3 ms, ideal for control loops needing stable digital signals.
Key features
- Contact bounce < 3 ms for stable signalling
- Spring-stress simulation makes life predictable
- Operating point repeatability to ±0.05 mm
- Gold-contact low-level signal versions available
Specifications
| model | KW4-3Z |
| series | KW4 |
| ratedCurrent | 3A |
| ratedVoltage | 125VAC / 30VDC |
| circuit | SPDT |
| actuator | Pin plunger |
| terminal | PCB |
| ipRating | IP40 |
| operatingForce | 1.0 N max |
| operatingTravel | 0.35 ± 0.15 mm |
| mechanicalLife | 3,000,000 cycles min |
| electricalLife | 100,000 cycles min |
| contactResistance | ≤ 50 mΩ |
| insulationResistance | ≥ 100 MΩ |
| dielectricStrength | 1000 VAC / 1 min |
| operatingTemp | -25℃ ~ +85℃ |
| mounting | PCB |
| dimensions | 12.8 × 5.8 × 6.5 mm |
| contactMaterial | Silver alloy |
| approvals | UL · CQC · CE · RoHS |
Manufacturing & quality
KW4-3Z is produced entirely in the HAOSWITCH factory through injection moulding → high-speed stamping → automated assembly → 100% inspection and packing. Critical processes run under SPC control; operating point and electrical performance are verified 100% inline with data pushed to MES, giving forward and backward traceability for every lot.
Customisation
We provide OEM / ODM customisation covering: actuator type and length, termination (solder / PCB / quick-connect / cable), operating force and travel, housing colour and printing, cable length and connectors, and packing (bulk / tape-and-reel / tube). Moulds are developed in-house — 15 days from drawing approval to first article.
Customer recognition is our highest honour — the only reason we keep investing in R&D and quality systems.
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