Sensata Technologies 080706-21
YS11
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
Features: 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
Construction: 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.
Specification:
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
Certifications:
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.
Dimension:
Standard type Case : Width 6.9 x Length 21.5 x Height 4.0mm excluding leads.
No Part Description Material
① Leads Refer Numbering System
② Epoxy
③ Case PBT or PPS
④ Eyelet Brass
⑤ Upper Plate Brass
⑥ Lower Block PBT
⑦ Movable Arm Refer Numbering System
⑧ Bimetal Disc
⑨ Lower Terminal Brass
⑩ Stationary Contact AgNi alloy
Sensata Technologies 080706-21
Performance
Short time trip performance and Ultimate trip current as reference.
YS11 with AWG#22 wire leads / U.T.C.
1
10
100
0102030405060
DELTA T (degC)
U.T.C (A)
YS11B (C17510)
YS11A (C17530)
Short Time Trip - YS11A (C17530)
0
10
20
30
40
50
60
70
80
110100
Trip Time(sec)
Current(A)
150℃
140℃
130℃
120℃
110℃
100℃
90℃
80℃
70℃
60℃
Sensata Technologies 080706-21
Numbering System
It is clearly defined the numbering system to find what user needs to know as follows.
ZW(ZZZ): Optional Leads material, length and else.
Z : Leads material can be selected from table below
as standard rating,
A : UL style 3266 AWG22 Tin coated-BL
B : UL style 1430 AWG22-WH
C : UL style 3398 AWG22 Tin coated-YL(Kurabe)
D : UL style 3398 AWG22-YL(Kurabe)
E : UL style 3266 AWG22-BK
F : Copper Solid Wire D=0.8mm
G : UL style 3266 AWG22 Tin coated-WH
W : Leads length can be selected from Table below
as standard rating.
5mm Strip 10mm Strip
W Length W Length
1251125
2301230
3351335
4401440
5451545
6501650
7551755
8601860
9651965
10 70 20 70
(ZZZ) : Other than above standard combination,
2 or 3 digits of number or letter is assigned as
customized one.
YS11 : Device Identification
YS11 X YYYT - ZW(ZZZ) – (V)
X : Performance Identification
Code Arm Material
A BeCu C17530
B BeCu C17510
YYY : Open temperature Code
T : Close temperature Code
A
B
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 76 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
*2 A is for Snap Open/Close guarantted.
B is for snap open guarantted.
*1 Close temperature for reference
YYYT :
TYYY
Close (℃) *1
Open
(℃)
Code
Temperature Code Matrix
Ex. YS11A130B-C7
YS11 with C17530 material Movable Arm.
130℃ open, 100℃ Close temperature.
UL 3398 AWG22 55mm length leads
(V) : Other options
Omitt : No option
R: Reinforced Case
S: PPS Case
T: Groove contact(For DC rating
only)
U: Groove contact and CDA
C19220
for lower terminal(For DC
rating
