Electric Motor 7A 250VAC Thermal Overload Protector Plastic Case Featured

Electric Motor 7A 250VAC Thermal Overload Protector Plastic Case Featured

Product Details:

Place of Origin: China
Brand Name: Tian Rui
Certification: UL ENEC CQC
Model Number: YS11

Payment & Shipping Terms:

Minimum Order Quantity: 1000PCS
Price: Negotiable
Packaging Details: 100PCS/Bag
Delivery Time: 5-7 Days
Payment Terms: D/P, T/T,Paypal, Western Union
Supply Ability: 1000000PCS/Month
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Detail Information

Contact Capacity: TCO,TMP 7A/250Vac, 10A/125Vac TCO 6A/24Vdc, 15A/18Vdc Temperature Range: 45 To 150°C
Case: PBT Or PPS Tolerance On Open Temperature: ±5K
Max. Temp. Of The Switch Head: 150°C Operating Time: Continuous
Extent Of Sensing Element: Whole Control Degree Of Protection: IP00
Eyelet: Brass Stationary Contact: AgNi Ally
High Light:

7A Thermal Overload Protector


250VAC Thermal Overload Protector


UL Electric Motor Thermal Switch

Product Description

YS11 Klixon Plastic Case Thermal Cut Out Temperature Protector Bimetal Electric Motor Thermal Switch


Small Thermal Motor Protector / Thermal Cut-Out

Plastic Case featured small protector.

Stable and Reliable long life on Non-Current Carry designed device.

Chattering free and precise operating temperature



Contact Capacity : TCO,TMP 7A/250Vac, 10A/125Vac

TCO 6A/24Vdc, 15A/18Vdc

Ballast 2A/250Vac

Temperature Range :

-Motor Protector and Temp control 45 to 150°C

-Ballast protection 45 to 150°C

Tolerance on Open Temperature: +/- 5K

Max. temp. of the switch head: 150°C

Operating time: continuous

Pollution situation: Dirty

Extent of sensing element: whole control

Degree of protection IP00

Electrical connections soldering, welding




YS11 was developed to protect people and property from accidents occurring on Motor which is used for Fan motor, washing machine and so on. It functions as a self- resetting thermal cut-out (Type 2B), thermal motor protector (Type 3C) and thermal protector for ballasts.
The YS11 pursued to enable to be used for both of installation manner of on-winding and outside of resin packed motor by clamping or insertion. It directly cut off power line. Since it has plastic case, it does not need to insulate YS11 protector from metal parts of motor.




YS11 is constructed with simple design and based on the well known thermostat technology of Sensata Technologies. And it has enough sealing capability to withstand varnish process and reinforced case enabled to be laced on winding.


7.Movable Arm carries current from 1.Lead to 9.Lower Terminal which is insert molded in 6.Lower Block, via 10.Movable Contact and Stationary Contact.
7.Movable Arm, 8.Bimetal Disc and 5.Upper Plate are riveted to secure with 6.Lower Block by 4.Eyelet. This assembly is inserted into 3.Case, and potting Epoxy to seal.


Since trip time to cut off the power is depending on the operation temperature of YS11 protector. Rating should be selected properly. With referring Performance curve, it can be enabled to select best one which is matching with Motor.


Application Notes


R-type case was developed for Resin Packed Motor. This is designed to resist for high pressure which may be loaded during molding process. Maximum pressure is required to be control within 7.5Mpa. Please be noted that R-type case does not have enough sealing capability, therefore it should not applied for winding varnish process. Dimension is 6.0mm x 7.8mm (ellipse) x 23.0mm length.


S-Type Case is for use in higher ambient temperature and same configuration as standard case. Housing material is used PPS (RTI:240 °C) which is same as R-type case, so that it can resist high temperature for short time. This case is not guaranteed for varnish process as well.



Rating should be selected as properly to protect Motors and other equipment. Short time trip current and Time is described in “Performance” page which helps to choice most adequate operating temperature. Must hold current is also one of important performances, it can be selected from UTC performance curve as well.


UL : E15962 for Motor Protector
        E34618 for Temp Indicating & Regulating

ENEC : 2014531.17 for thermal cut-out, -motor and-ballast protector

CQC: CQC02002001340/CQC02002001341 -Protectors are not applied in CCC(China Compulsory Certification) at present. So YS11 can not have CCC but CQC. CQC(China Quality Certification Centre) is a national certification body for appliance in China.



Standard type Case : Width 6.9 x Length 21.5 x Height



Electric Motor 7A 250VAC Thermal Overload Protector Plastic Case Featured 0


No Part Description Material
Leads Refer Numbering System
Case PBT or PPS
Eyelet Brass
Upper Plate Brass
Lower Block PBT
Movable Arm Refer Numbering System
Bimetal Disc  
Lower Terminal Brass
10 Stationary Contact AgNi ally


Short Time Trip Performance and Ultimate Trip Current As Reference.

Electric Motor 7A 250VAC Thermal Overload Protector Plastic Case Featured 1Electric Motor 7A 250VAC Thermal Overload Protector Plastic Case Featured 2

Electric Motor 7A 250VAC Thermal Overload Protector Plastic Case Featured 3




Close (°C) *1
45 *2 45 > 35 >35
50 *2 50 > 35 >35
55 *2 55 > 35 >35
60 *2 60 > 35 >35
65 *2 65 > 35 >35
70 70 40 40
75 75 45 45
80 80 50 50
85 85 55 55
90 90 59 60
95 95 62 65
100 100 64 70
105 105 67 75
110 110 70 80
115 115 73 85
120 120 77 90
125 125 79 95
130 130 83 100
135 135 86 105
140 140 90 110
145 145 94 115
150 150 96 120


W : Leads length can be selected from Table below as standard rating.
         5mm Strip                   10m m Strip
W Length W Length
1 25 11 25
2 30 12 30
3 35 13 35
4 40 14 40
5 45 15 45
6 50 16 50
7 55 17 55
8 60 18 60
9 65 19 65
10 70 20 70

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