Bi-metāla termiskais aizsargs

Elektronisko iekārtu un ierīču jomā, temperatūras kontrole ir ļoti svarīga, lai nodrošinātu pareizu iekārtas darbību un izvairītos no iespējamiem bojājumiem. Bimetāla termoaizsargi un termo drošinātāji ir divas izplatītas temperatūras aizsardzības ierīces, kurām ir svarīga loma elektronisko iekārtu aizsardzībā. Lai gan viņu mērķi ir līdzīgi, pastāv dažas būtiskas atšķirības, kā tās darbojas un kur tās var izmantot.

Thermal protectors are a more complex device, usually made from a bimetallic sheet with a positive temperature coefficient (Ptc). This means that as the temperature increases, its resistance also increases. When the temperature in the circuit exceeds the preset safe value, the resistance of the thermal protector will increase rapidly, causing the current to decrease, thereby reducing the temperature of the circuit. This self-regulating property allows thermal protectors to effectively prevent equipment from overheating and automatically shut down the circuit in the event of overheating. Tāpēc, thermal protectors are widely used in various electronic equipment and appliances, such as motors, baterijas, transformatori, utt..

⑴ electrical parameters:
1) CQC, Vde, Uls, CUL AC250V 50 ~ 60Hz 5A / 10Izšķirt / 15Izšķirt (resistive load)
2) UL AC125V 50Hz 15A (resistive load)
⑵ operating temperature range: 0-300 ℃ (pēc izvēles), temperature accuracy: ± 2 ± 3 ± 5 ± 10 ℃
⑶ recovery and action temperature difference: 8 ~ 100 ℃ (pēc izvēles)
⑷ Connection: plug terminal 250 # (bend 0 ~ 90 ° optional); plug terminals 187 # (bend 0 ~ 90 ° optionally, the thickness 0.5,0.8mm optional)
⑸ life: ≥ 100,000 reizes
⑹ electrical strength: AC 50Hz 1800V lasted 1min, no flicker, no breakdown
⑺ Contact resistance: ≤50mΩ
⑻ Insulation resistance: ≥100MΩ
⑼ Contact form: Parasti slēgts: temperature rise, contacts open, the temperature drops, contact connected;
Normally open type: temperature rise, contact connected, the temperature drops, contacts open
Normally open type: temperature rise, contact connected, the temperature drops, contacts open
⑽ shell protection grade: IP00
Installation: KSD301 Series Installation ordinary activities ring, ring install small round activities, installation of flat panel active ring, with mounting holes ordinary large aluminum cover with mounting holes lengthened aluminum cover.

● KSD301 series thermostat competitive advantage
⑴ stable performance
⑵ high precision
⑶ small size, viegls svars
⑷ high reliability, ilgs mūžs
⑸ small radio dry worry
⑹ do not pull the arc