Apa yang biasanya dibuka (Tidak) Thermostat Switch KSD301?

Cakera bimetallic suis termostat ksd301 beroperasi secara biasanya terbuka (Tidak) konfigurasi. Ini bermaksud litar pada mulanya dibuka (terputus) pada suhu biasa. Apabila suhu naik ke ambang yang telah ditetapkan, selekoh cakera bimetallic, Menutup litar dan membenarkan aliran semasa.

Normally open THERM-O-DISC T-O-D THERMAL LIMIT SWITCH L160-40F 60TX01

UL/CUL KSD301 Shutoff Thermostat,Normally Open NO Bimetal Snap Disc 125V 16A Auto Reset

Uxcell KSD301 Thermostat 40 ° C/104 ° F 10a Biasanya Buka N.O Laraskan suis suhu cakera snap

I. Ciri -ciri teras
‌Operation Principle‌
When the temperature rises to the set value, the contact automatically connects the circuit; when the temperature drops to the reset value, the contact automatically disconnects the circuit, which is the opposite of the normally closed type (disconnected when the temperature rises and connected when the temperature drops).

The bimetallic strip is heated and deformed to trigger the mechanism to achieve fast switching.

‌Technical Parameters‌
‌Electrical Specifications‌:
Voltan dinilai: AC 250V (Beban rintangan) or AC 125V (UL standard)
Arus dinilai: 5A/10A/15A (Beban rintangan)
‌Temperature performance‌:
Action range: 0℃~300℃ (customizable), accuracy ±2℃~±10℃17
Reset and action temperature difference: 8℃~100℃ (adjustable)
‌Mechanical characteristics‌:
Rintangan Hubungi: ≤50mΩ, insulation resistance: ≥100MΩ13
Kekuatan elektrik: AC 1800V/1min without breakdown
Hayat perkhidmatan: ≥100,000 times17 (some models up to 150,000 times2)

‌Physical characteristics‌
Tahap perlindungan: IP00 (no dust and water resistance)
Kaedah pendawaian: plug-in terminal 250# atau 187# (angle 0°~90° optional)
Kaedah pemasangan: supports various structures such as movable ring, flat ring, aluminum cover with holes, dll.

Normally Open State:
The KSD301 is designed to have its contacts in an open state when the surrounding temperature is below the specified operating temperature. This means the circuit connected to the KSD301 is broken, preventing current flow.

Temperature Trigger:
As the temperature increases, the bimetallic disc (made of two different metals bonded together) responds to the temperature change. The two metals expand at different rates, causing the disc to bend.

Circuit Closure:
When the temperature reaches the set point, the disc bends enough to close the circuit, establishing a connection between the contacts. This allows current to flow through the circuit.

Reset automatik:
Once the temperature drops below a certain level, the bimetallic disc returns to its original shape, opening the circuit again and cutting off the current flow. This is an automatic reset feature.
Intinya, the KSD301 is used as a thermal switch to control current flow based on temperature, acting as a temperature sensor and protector for various applications.

Ii. Application scenarios
‌Household peralatan: dispenser air, electric thermos, ketuhar gelombang mikro, Kabinet pembasmian kuman, pemanas elektrik, Mesin kopi, dll.
‌Industrial Equipment‌: motor overheat protection, rectifier equipment, Mesin laminating, car heated seats, etc.57.

Iii. Detection method (determine whether it is normally open)
‌Multimeter detection‌:
Pada suhu bilik (‌below the action temperature‌): the resistance of the two pins should be infinite (litar terbuka).
After heating (‌above the action temperature‌): the resistance value drops to ‌tens of ohms‌ (litar terbuka).
‌Marking distinction‌: The product body is usually marked with “Tidak” (Biasanya dibuka) atau “Biasanya dibuka”.

Iv. Kelebihan produk
Kelajuan tindak balas pantas, clean contact action without arcing57;
High temperature control accuracy, strong reliability7;
Compact structure, strong adaptability17.

⚠️ Note: The actual selection needs to confirm the specific temperature threshold (such as 85℃, 95℃, dll.) and the reset temperature difference. The parameters of different models may vary.