POSITIVE THERMISTORS "Posi-R"
For Motor Starting (Fail Safe Type)
This case type Posi-R is ideally suited for motor starting in various home
appliances like refrigerators, freezer and home-type air conditioners.
In case of failure on products, circuit will be opend with fail safe system.
Type numbering system
1 2 3
4
5
6 7
8 9 10 11
12 13 14
ZP M
Y CH 4R 7 N 1 8 0
Max. Operating Voltage (Vrms)
Revision Code
Initial Resistance (4R7 : 4.7Ω)
Switching Temperature (CH : 135˚C)
Diameter of Element (Y :
φ20)
Number of starting circuit
For Motor Starting
Form of motor
starting circuit
Number of
starting circuit
RSIR
1
RSCR
2
CSR
3
CSIR
(unit : mm)
4
4
3
Motor starting
circuit
1
2
6.35
±
0.1
Specification
Type No.
ZPM YCH4R7N180
ZPM YCH6R8N200
ZPM YCH100N225
ZPM YCH150N250
ZPM YCH220N300
ZPM YCH330N355
ZPM YCH470N400
Symbol
Initial Resistance
(at 25˚C)
4.7Ω ±25%
6.8Ω ±25%
10Ω ±25%
15Ω ±25%
22Ω ±25%
33Ω ±25%
47Ω ±25%
Switching
Temperature
Max. Operating Voltage Max. lnrush Current
(Vrms)
(Arms)
180
200
225
12
10
8
7
6
5
135˚C
250
300
355
400
2.2
±
0.2
9
25
±
1.0
25.7
±
1.0
6.0
±
0.5
is number of starting circuit.
22
±
1.0
UL approval types are also available upon request.
Please contact us if you have any request for other specifications.
6
2.5
±
0.2
CAT.8100A
11.66
±
0.1
5