China Thermische oververhittingsbeveiligingsschakelaar

KSD9700 / KSD301 / KSD302 / JUC-31F / S01 / S06 / 7BEN / 17BEN / YS11 thermostat is a common Bimetal temperature control protection switch, which adopts the working principle of overheating power-off of bimetallic strip.

China “3Kamerlid / 6AP/ 8.00 uur / 2.00 uur / 3Kamerlid / 17AM+PTC overstroom & temperatuur bimetaalbeschermer” is een type elektrisch veiligheidsapparaat dat een standaard combineert ” 3Kamerlid ” bimetaal thermische overbelastingsbeveiliging met een positieve temperatuurcoëfficiënt (PTC) thermistor, waardoor het beide kan reageren op overmatige stroom (overstroom) en hoge temperaturen, automatisch de stroom uitschakelen en resetten zodra het probleem is opgelost; fungeert in wezen als een resetbare zekering met extra temperatuurbescherming.

common Bimetal temperature control protection switch

Snap Disc Limit Switch KSD9700 Temperature Control

Thermische oververhittingsbeveiligingsschakelaar

Key components and function:
•Bimetallic protector:
This is the primary overcurrent protection mechanism, consisting of a bimetallic disc that bends and breaks the circuit when too much current flows through it, causing excessive heat generation.

•PTC Thermistor (Positive Temperature Coefficient):
This component further enhances protection by significantly increasing its resistance when it reaches a preset temperature, further limiting current flow in case of overheating.

Hoe het werkt:
1. 1. Normal Operation:
When current is within safe limits, both the bimetallic disc and PTC thermistor operate normally, allowing current to flow freely.
2. 2. Overcurrent Condition:
If the current exceeds a preset threshold, the bimetallic disc heats up and bends, interrupting the circuit.
3. 3. High Temperature Condition:
Simultaneously, the PTC thermistor also heats up due to high current, drastically increasing its resistance and further limiting current flow.
4. 4. Resetting:
Once the fault is removed and the components cool down, the bimetallic disc returns to its original shape, re-establishing the circuit, and the PTC thermistor resets to its low resistance state, ready to protect again.

17AM+PTC overstroom & temperatuur bimetaalbeschermer

17BEN / 3MP bimetallic thermal overload protector with PTC

3Kamerlid / 6AP Limit Switch Motor over current – thermische beschermer

Toepassingen:
• Motor Protection:
Commonly used in electric motors for appliances like washing machines, dryers, and vacuum cleaners to protect against overload situations.
• Power Supply Protection:
Can be integrated into power supplies to prevent damage from overcurrent or overheating events.

Important points to consider:
• Current Rating:
Each protector is designed for a specific current rating, which should be matched to the application.
• Trip Time:
The time it takes for the protector to trip depends on the overcurrent level and the design of the bimetallic disc.
• Temperature Rating:
The PTC thermistor has a specific temperature threshold at which it activates, ensuring protection against excessive heat.