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18AMA motor thermal protector bimetal thermal protector

18AMA motor thermal protector bimetal thermal protector: snap action, automatic reset.
Normal closed type: cutoff at temperature rises. Normal open type: contacts closed (ON) at temperature rises
Contact rating: 8A/125VAC; 5A/250VAC; 8A/24VDC
Thermal switch dimension: 16X6.8X3.1mm
Action Temperature: 50C to 155C

Application:18AMA thermal protector bimetal thermal switch are widely used in They are also used motor, transformer, lighting appliance, heater, fluorescent ballast, IC etc.

Quantity:
  • 18AMA Thermal Protector
  • HC

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Snap action thermal protector , automatic reset type with UL,VDE, CB, CCC , Rohs compliant

 

Work principle:

18AM-C thermal protector is a temperature automatic response devide and is connected in series to the winding of motor. 

 Normal closed type:  cutoff at temperature rises.  

Normal open type: contacts closed (ON) at temperature rises


Application:

18AMA series thermal protectors are devices for protecting against overload and over temperature. They are usually used for AC 220v /50Hz one phase motors to protect motor from over temperature caused by unusual state such as overload, blocked up. They are also used for protecting against over temperature & temperature control in lighting appliance, heater, fluorescent ballast, IC etc.

Main features:

Snap action, normal closed, auto reset

Contact rating: 8A/125VAC; 5A/250VAC; 8A/24VDC 
Thermal switch dimension: 16X6.8X3.1mm

Open Temperature: 50C to 155C,  in 5C increasement

Tolerance for open temperature: +/-5C

Cable:Stardard:AWG20 silicon cable or AWG#22 UL3326 PE cable, 70mm long, special requests accepted
Approval: UL,VDE, CQC, Rohs compliant

 

Advantage:

Good quality, good price, prompt delivery guaranteed.


Cutoff temperature table:(reset temperature for reference)

Model Open temperture Reset temperture Model Open temperture Reset temperture
18AMA-50℃ 50±5℃ 35±6℃ 18AMA-105℃ 105±5℃ 70±15℃
18AMA-55℃ 55±5℃ 35±7℃ 18AMA-110℃ 110±5℃ 75±15℃
18AMA-60℃ 60±5℃ 40±10℃ 18AMA-115℃ 115±5℃ 75±15℃
18AMA-65℃ 65±5℃ 45±10℃ 18AMA-120℃ 120±5℃ 80±15℃
18AMA-70℃ 70±5℃ 45±10℃ 18AMA-125℃ 125±5℃ 85±15℃
18AMA-75℃ 75±5℃ 50±15℃ 18AMA-130℃ 130±5℃ 85±15℃
18AMA-80℃ 80±5℃ 55±15℃ 18AMA-135℃ 135±5℃ 90±15℃
18AMA-85℃ 85±5℃ 55±15℃ 18AMA-140℃ 140±5℃ 95±15℃
18AMA-90℃ 90±5℃ 60±15℃ 18AMA-145℃ 145±5℃ 95±15℃
18AMA-95℃ 95±5℃ 65±15℃ 18AMA-150℃ 150±5℃ 100±15℃
18AMA-100℃ 100±5℃ 65±15℃ 18AMA-155℃ 155±5℃ 105±15℃


Dimension:

 with leadwire and with insulation sleeve, the cable and length can be made according to customer's request:

16X6.8X3.1mm with 70mm cable, special requests for the cable acceptable

 

Ultimate Tripping Current Vs Ambient Temperature ( for reference only)

A-C chart

 

 

Product Picture

 

18AM03

18AM02


 A1D-120C


A1D-50


 A1D-07 bimetal thermal switch

Other models for your reference

 

HC thermal protector02

 

Production line

 production line

Packaging & shipping

 

pack01

package

 


 

Storage Condition:

During the transport and storage, the packages can not be exposed to snows or rains, and should avoid strong force outside.  It shouId be stored in a dry and ventilative warehouse.

 

Customers' special requests accepted. Pls contact us for more.

 


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