TO-220 PCB-Bimetal Disc Termostat Perlindungan Termal Kecil

A TO-220 PCB-Thermal protection Thermostat is a method that detects high temperatures and disconnects power to electronic circuits to prevent damage or fires. A TO-220 PCB- Thermal protectors Thermostat are often used in motors to prevent overheating and fires by turning off the electricity when the motor’s heat rises too high. Thermal protectors are usually placed inside the motor.
A TO-220 PCB-bimetal disc thermostat is a thermally actuated switch that uses a bimetallic disc to sense temperature and open or close an electrical circuit. When the disc is exposed to a predetermined temperature, it snaps and either breaks or completes the circuit. Here are some examples of TO-220 PCB-bimetal disc thermostats:
JUC 31F / ST01 B U8 Seri TO-220 PCB-Termostat Cakram Bimetal: Termostat bimetalik SPST aksi cepat yang memenuhi standar RoHs.
JUC 31F / ST01 B U8, 6700 Termostat Subminiatur Seri TO-220: Termostat cakram bimetal subminiatur dengan resistansi kontak 50 miliohm maks. Ini memiliki kemampuan saklar hingga 2 amp untuk 48 VDC atau 120 VAC untuk 30,000 siklus.
JUC 31F / ST01 B U8, 802 Series PCB Thermostat: A miniature bimetal thermostat that conforms to the international Y220/TO220 package.

Sakelar Pelindung Termal JUC-31F ,UL, CUL, CQC, TUV, Sakelar Suhu CB TO220

Bi-Metallic Thermostat, Opens +100°C, Close +60°C, +150°C Max, tidak, Reset Otomatis, PCB

6700 Termostat Subminiatur Seri TO-220

PCB-Bimetal Thermostat Connection structure
The static contact and ceramic cover are riveted; The moving contact is welded to the reed, yang berbentuk salib, and its four legs are connected to the bottom of the shell; The inner hole of the bimetallic strip passes through the moving contact and is placed on the reed. The current passes through the static contact to the moving contact, and then connects to the shell through the reed to form a loop.

ST01 B U8 PCB-Bimetal Thermostat Working principle
When the circuit is in normal state, the moving contact is in close contact with the static contact under the pre-pressure of the reed. When the temperature reaches the operating temperature, the bimetallic strip is deformed by heat and quickly flips, pressing the reed to move downward, causing the contacts to separate and cut off the circuit. After the circuit is cut off, the temperature begins to drop. Ketika suhu turun ke suhu reset, the bimetallic strip returns to its initial state, and the reed also rebounds to its initial state. The moving contact and the stationary contact re-contact, and the circuit returns to the normal conduction state.

PRODUCT PARAMETER
Suhu peralihan nominal (NS) dalam 5°C : 60 ° C. – 180 ° C.
Toleransi (standar) : ±5K
Suhu sakelar terbalik (Pertama) toleransi :
≥ 35 ° C. (≤ 80°C NST)
-30K±15K (≥ 85°C ≤ 180°C LU)
Ketebalan : 5.6mm
Diameter : 9.8mm
Panjang tutup insulasi : 18.3mm
Ketahanan terhadap impregnasi : sesuai
Cocok untuk pemasangan di kelas proteksi : saya+akan
Resistensi tekanan pada rumah sakelar : 300N
Koneksi standar : 0.33 mm² / AWG22
Tegangan isolasi : 1.5 persegi panjang
Rentang tegangan pengoperasian AC/DC : sampai 500 V dan / 14 Di DC
Tegangan terukur AC : 250 V(VDE), 277 V(UL)
Nilai arus AC cos ϕ = 1.0 /siklus :2.5A / 10,000
Maks. peralihan arus AC cos ϕ = 1.0 /siklus : 6.3 A / 3,000/ 7.5 A / 300
Nilai arus AC cos ϕ = 0.6 /siklus : 1.6 A / 10,000
Tegangan terukur DC : 12.0 V
Maks. mengganti arus DC/siklus : 40.0 A / 5,000
Total waktu pentalan : < 1 MS
Resistensi kontak : ≤ 50 mΩ
Ketahanan getaran pada 10 … 60 Hz :100 m/s²
Persetujuan yang tersedia : UL/TUV/CQC/CB