As an upgraded waterproof switch developed by Yueqing Tongda Wire Electric Factory for harsh environments such as high humidity, dust, and outdoor conditions, the FSK-20 series has "IP67 top-level protection and strong load capacity" as its core competitiveness, and is widely suitable for fields with high waterproof performance requirements, such as outdoor lighting, industrial cleaning, automotive electronics, and marine equipment.
Product Introduction
For the high power demands of industrial equipment and large outdoor electrical appliances, the FSK-20 has been specifically upgraded in terms of electrical performance: the contacts are made of 99.9% high-purity silver-palladium alloy, with surface hardness enhanced through vacuum sputtering technology, an initial contact resistance of ≤5mΩ, a rated load of up to 20A (250V AC), and a peak load supporting 30A instantaneous switching. It can reliably accommodate circuit control for medium-to-high power equipment such as industrial washers, outdoor charging stations, and large aquarium devices, preventing contact erosion and performance degradation due to current overload. The actuator structure features a "reinforced spring with dual contact linkage" design, achieving a mechanical life of over 120,000 press cycles and an electrical life of more than 80,000 cycles. In industrial scenarios with high-frequency daily switching, it can provide stable operation for over 6 years.
Tongda Factory FAQ
Q1.:Do you have any certification about your factory or products?
A1:Of course,we have strong system certified,like IATF16949,ISO14001,UL,TUV,VDE,Rohs,Reach and related approvals.
Q2.What is your sample policy?
A2:Free sample could be provided within 5days,but express charge should be paid by customer.
Q3. What is your terms of packing?
A3: Generally, we pack goods in neutral boxes and brown cartons,or customized if qty reached.
Q4. What is your terms of payment?
A4: In common,T/T 30% as deposit, and 70% before delivery.,if the amount >2000USD
Product Specification
| Switch Technical Characteristics: | |||
| ITEM | Technical parameter | Value | |
| 1 | Electrical Rating | 0.1A/1A/3A 250VAC | |
| 2 | Operating Force | 1.0-2.5N | |
| 6 | Electrical Life | ≥50000 cycles | |
| 7 | Mechanical Life | ≥100000 cycles | |
| 8 | NO(Operating Position) | 8.4±0.3mm | |
| 9 | NC(Operating Position) | 8.7±0.3mm | |
| 10 | Vibration Proof |
Vibration Frequency :10~55HZ Amplitude : 1.5mm Three directions :1H |
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| 11 |
Solder Ability :More than 80% of immersed part shall be covered with solder |
Soldering Temperature : 235±5℃ Immersing Time :2~3S |
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| 12 | Solder Heat Resistance |
Dip Soldering :260±5℃ 5±1S Manual Soldering :300±5℃ 2~3S |
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| 13 | Test Conditions |
Ambient Temperature :20±5℃ Relative Humidity :65±5%RH Air Pressure :86~106KPa |
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Product Details