As the benchmark model of Yueqing Tongda Wire Electric Factory's micro switch series, the 16A Arc Handle Dustproof 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 switch is meticulous in the selection of core components, equipped with high-conductivity, high-wear-resistant silver alloy contacts, effectively reducing contact resistance, minimizing heat loss, and extending contact lifespan. At the same time, it features a UL94 V-0 flame-retardant casing, offering excellent fire and electric leakage protection, significantly enhancing product safety. The product's rated load standard reaches 16A/250VAC, and for certain high-load scenarios, a special model with an increased rated load of 21A has been introduced. Its contact gap design is precise, and its response action is rapid, enabling efficient and stable handling of circuit on-off demands, balancing safety and practicality, and meeting the usage requirements of different power devices.
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.)
Performance Advantages
High Current Capacity: Up to 21A, ideal for high-power loads
Bounce-Free Snap Action: Instant switching with short travel, stable contacts
High Flexibility: Multiple pin-outs & levers, fully customizable
Industrial-Grade Reliability: Wide temperature, IP40, full approvals for harsh environments
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
