Thermostats limites à disque bimétallique KSD301 : Fonction, Spécification, Interrupteur de température

KSD301, 302 les séries à action instantanée sont des thermostats qui utilisent des disques bimétalliques (1/2″ disque) comme composants de détection de température pour contrôler les interrupteurs de coupure thermique. Évaluation électrique: C.A. 125 V maximum 15 A ~ 60 A.; AC250V 5A 10A 15A maximum 16A. Température d'action: -30 °C~280 °C. When household & industrial appliances are working normally, the bimetallic strip is in a free state and the contacts are in a closed/open state. When the temperature reaches the action temperature, the bimetallic strip is heated to generate internal stress and quickly moves, opening/closing the contacts, cutting off/connecting the circuit, thereby playing a role in temperature control. When the appliance cools to the reset temperature, the contacts automatically close/open and resume normal working state.

KSD301 automatic reset & manual reset thermal switches

KSD301 normally open & normally closed action

KSD301 bimetallic discs temperature switches

KSD301 series bimetal thermostat is a kind of miniature hermetically sealed bimetal thermostat. It is of single-pole single-throw structure and works under resistive load. KSD301 bimetal thermostat is in wide use in a great variety of compact type home appliances with automatic reset or manual reset to provide temperature control or temperature protection.

KSD301 bimetallic snap disc thermostats are widely used in: distributeurs d'eau, chauffe-eau, sandwich toasters, lave-vaisselle, séchoirs, armoires de désinfection, microwave ovens, electric coffee pots, electric cookers, réfrigérateurs, climatiseurs, laminating machines, matériel de bureau, car seat heaters and other electric heating appliances.

Technical parameters
1. Paramètres électriques: 1) CQC, VDE, UL, CUL; AC250V 50~60Hz 5A / 10UN / 15UN / 20UN / 25UN / 30UN / 40UN / 50UN / 60UN (charge résistive).
2) UL AC 125V 50Hz 15A~60A (charge résistive).
2. Operating temperature range: -30℃~280℃ (facultatif), précision de la température: ±2 ±3 ±5 ±10℃.
3. Recovery and operating temperature difference: 8~100℃ (facultatif).
4. Wiring method: borne à fiche 250# (bend 0~90° optional); borne à fiche 187# (bend 0~90° optional, thickness 0.5, 0.8mm optional).
5. Service life: ≥ 100000 fois.
6. Résistance électrique: AC 50Hz 1800V for 1min, pas de scintillement, pas de panne.
7. Contact resistance: ≤50mΩ.
8. Résistance d'isolation: ≥100 MΩ.
9. Contact form: Normally closed type: temperature rises, contacts disconnect, temperature drops, contacts connect;
Type normalement ouvert: temperature rises, contacts connect, temperature drops, contacts disconnect.
10. Shell protection level: IP00.
11. Grounding method: connected to the grounding metal parts of the device through the metal shell of the thermostat.
12. Installation method: directly reinforce with screws.
13. Temperature operating range: -25℃ ∽ +240℃+1℃ ∽ 2℃

KSD301 control thermal cut-off switches

KSD301 1/2″ disc snap-action switches

Thermostats limites à disque bimétallique KSD301

Product features
It has the characteristics of stable performance, haute précision, petite taille, poids léger, grande fiabilité, longue vie, and low radio interference.

302 series snap-action are thermostats

Notes
1. (KSD301 surface mount thermostat) When using contact temperature sensing surface mount for installation, the metal cover should be close to the installation surface of the controlled device to ensure the temperature sensing effect. Thermal conductive silicone grease or other thermal conductive media with similar performance should be applied to the temperature sensing surface.
2. Do not collapse, loosen or deform the top of the cover during installation to avoid affecting performance.
3. Do not allow liquid to penetrate into the thermostat, do not allow cracks to appear on the outer shell, and do not change the shape of the external terminal at will.
4. When the product is used in a circuit with a current of no more than 5A, a cable with a copper core section of 0.5-1㎜2 should be selected for connection; when used in a circuit with a current of no more than 10A, a cable with a copper core section of 0.75-1.5㎜2 should be selected for connection.
5. The product should be stored in a warehouse with a relative humidity of less than 90% and an ambient temperature below 40℃, which is ventilated, clean, dry, and free of corrosive gases.

Classification of KSD301:
It can be classified by temperature, material (bakelite/ceramic), or installation method (surface mount/nut fixing).
Classification by action nature: It can be divided into normally open & normally closed action, réinitialisation automatique & manual reset.