As the benchmark model of Yueqing Tongda Wire Electric Factory's micro switch series, the 116A/21A Large Micro Switch with Handle Three Pins features "high sensitivity, ultra-long lifespan, and multi-scenario adaptability" as its core advantages. Integrating the company's 35 years of switch manufacturing expertise, it has become a key control component in household appliances, automotive electronics, industrial automation, and other fields, thanks to its minimal contact gap and rapid action mechanism.
Micro Switch Introduction
The HK-14 switch, developed and produced independently by Yueqing Tongda Cable Factory under the WEIPENG brand, is a large micro switch positioned for the mid-to-high-end market. Thanks to its precise structural design, strict quality control, and versatile adaptability, it plays a key role in various on-off control scenarios. Unlike conventional switch products, it has developed a unique competitive advantage in stability and adaptability, making it a preferred product in the industry that combines practicality and professionalism.
Addressing the usage pain points of different industries, the HK-14 switch is designed with targeted improvements in load adaptability and protection performance. In addition to the standard 16A/250VAC rated load model, the high-load version can meet the 21A high-power demand, suitable for industrial equipment, large household appliances, and other high-frequency, high-load operating scenarios. At the same time, the product housing is made of high-strength flame-retardant material, which not only meets the UL94 V-0 flame-retardant rating but also has excellent impact resistance and aging resistance, making it suitable for various harsh operating conditions.
Micro Switch Parameter (Specification)
| Switch Technical Characteristics: | |||
| ITEM | Technical Parameter | Value | |
| 1 | Electrical Rating | 5(2)A/10A/16(3)A/21(8)A 250VAC | |
| 2 | Contact Resistance | ≤30mΩ Initial value | |
| 3 | Insulation Resistance | ≥100MΩ (500VDC) | |
| 4 |
Dielectric Voltage |
Between non-connected terminals |
1000V/0.5mA/60S |
|
Between terminals and the metal frame |
3000V/0.5mA/60S | ||
| 5 | Electrical Life | ≥50000 cycles | |
| 6 | Mechanical Life | ≥1000000 cycles | |
| 7 | Operating Temperature | -25~125℃ | |
| 8 | Operating Frequency |
electrical :15 cycles Mechanical :60 cycles |
|
| 9 | Vibration Proof |
Vibration Frequency : 10~55HZ; Amplitude :1.5mm; Three directions :1H |
|
| 10 |
Solder Ability : More than 80% of immersed part shall be covered with solder |
Soldering Temperature :235±5℃ Immersing Time :2~3S |
|
| 11 | Solder Heat Resistance |
Dip Soldering :260±5℃ 5±1S Manual Soldering : 300±5℃ 2~3S |
|
| 12 | Safety Approvals | UL、CSA、VDE、ENEC、TUV、CE、KC、CQC | |
| 13 | Test Conditions |
Ambient Temperature :20±5℃ Relative Humidity :65±5%RH Air Pressure :86~106KPa |
|
Micro Switch Feature and Application
Micro Switch Details

