As the benchmark model of Yueqing Tongda Wire Electric Factory's micro switch series, the 2-Pin Arc Handle Dustproof High-Current Micro Switch 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 is a high-current, heavy-duty standard microswitch featuring a robust one-piece housing and snap-action contact mechanism. It supports 2/3/4/6 pin configurations and a wide range of customizable levers, with a switching capacity up to 21A@250VAC. It is a mainstream control switch for home appliances, industrial equipment, and power tools.
Construction & Materials
Housing: High-strength flame-retardant thermoplastic, impact & heat resistant
Contacts: Silver alloy (AgCdO/AgNi), arc-resistant, low contact resistance
Terminals: 4.8mm tin-plated copper, plug-in & solder compatible
Actuator: Plunger / lever options (straight, bent, roller, etc.)
Typical Applications
Home Appliances: Door/limit sensing for microwaves, washers, ovens, rice cookers
Industrial: Automation equipment, power tools, pump/valve control, safety interlocks
Electronics: Power supplies, instruments, charging equipment, security devices
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
