KSD301 Temperature Limit Switch

KSD301 is a widely used bimetallic temperature-controlled Limit switch, mainly used for overheat protection or temperature control of electrical equipment. Its main features and information are as follows:

나. Core Principle
KSD301 realizes temperature control through bimetallic temperature sensing element: When the temperature of the equipment reaches the preset action temperature, the bimetallic strip is deformed by heat and instantly drives the contact to disconnect the circuit; after the temperature drops to the reset temperature, the contact automatically closes and resumes power.

II. Key Parameters

KSD301 Temperature Limit Switch

KSD301 Temperature Switch

Dimensional parameters of KSD301 temperature switch

III. Specifications and Types
‌Contact Form‌
‌Normal Closed (체크 안함): The contact disconnects when the temperature rises (most commonly used).
‌Normal Open (아니요): The contact connects when the temperature rises.
‌Mounting Structure‌
Bent-leg/flat-angle terminals are optional (remarks are required when placing an order).
인클로저 보호 수준: IP00 (metal enclosure grounded).

IV. Typical Applications
Household Appliances hold: 물 디스펜서, 밥솥, 소독 캐비닛, 전자레인지, 커피 머신.
‌Industrial equipment‌: 에어컨, 라미네이터, 전기 난방 기기.
‌Automotive field‌: diesel filter heating system.

V. Procurement and selection
‌Temperature marking‌: The required operating temperature (such as 85°C, 125℃) and contact type must be specified when purchasing.

Tip‌: The operating temperature tolerance and reset temperature difference must be confirmed according to the specific model. The tolerance of some high-precision models is as low as ±2°C.

KSD301 Temperature Switch Parameters