KSD303 A Waterproof Bimetallic Defrost Thermal Switch

Product Overview

Description

KSD303-A waterproof bimetallic defrost thermal switch    

 

Description of defrost thermal switch:

 

KSD303-A series snap-action waterproof bimetal thermal switch is a kind of miniature waterproof and hermetically seal bimetal defrost thermal switch. It is of single-pole single-throw structure and works under resistive load. The defrost thermal switch is enveloped in cold-resistant and flame-retardant plastic tube or sealing gum for possible underwater applications. The product KSD303-A series bimetal defrost thermal switch is widely used as heating compensated switch or automatic defrosting control switch in air-cooling frostless refrigerators.

 

 

Advantages of defrost thermal switch:

 

Water proof.

 

High precision.

 

High durability No breakdown, no flashover.

 

Every product will be tested, extremely high temperature pass rate.

 

Parameters of  defrost thermal switch:

 

Use	Defrost
Appliance	refrigerators
Reset type	Automatic
Base material	resist heat resin base
Amperage	3A/6A/10A
Max. Operating Temperature	20°C
Differential	Refer to the regulation
Min. Diff	8°C
Tolerance	Refer to the regulation
Cold-resistant Temperature	-40°C
Limit of the tolerance(OFF)	±2°C
Limit of the tolerance(ON)	±4°C
Contact material	Silver
Dielectric Strength	Parts between electriferous components and non-electriferous ones can bear 2000V (3750V for Reinforced insulation type) 50Hz AC current, which is nearly sine wave, for one minute as bearing test. Resulted no breakdown, no flashover.
Insulation Resistance	With a DC 500V megger, borne DC 500V, the tested value is over 10MW.
Resistance Between Terminals	Below 50mW
Temperature characteristics	Normal close, Normal open
Maximum ambient temperature	60°C
Diameter of bimetal disc	F12.8mm(1/2″)
Approvals	UL/CQC/TUV
Line	Color: red/brown/blue Length: customized
Terminal type	Customized (Refer to our specification)
Cover/Bracket	Customized (Refer to our specification)

 

Dimension of  defrost thermal switch:

 

Safety certificate of  defrost thermal switch:

 

 

 

 

 

 

 

 

Defrost thermal switches recommendation: 

 

 

 

 

 

 

NOTE: TERMINALS AND COVERS AND WIRE OF WTAERPROOF DEFROST THERMAL SWITCH CAN BE CUSTOMIZED UNDER YOUR REQUEST. PLEASE REFER TO OUR SPECIFICATION. WELCOME TO OUR WEBSITE 

TO GET MORE INFORMATION OF DEFROST THERMAL SWITCH.

 ( //www.thermostat-gb.com/html/Bimetal_Thermostat/  )

 

 

Our Company: 

 

FSTB began to manufacture thermostats in 1982, with many years of development, FSTB became the leading thermostat manufacturer in market and scale of industry worldwide, it has 10 sub-companies with professional bimetal raw material development and production base in upstream of industrial chain,as well as various kinds od thermostats and protectors production base in the downstream of industrial chain.