K401315 [ZIEHL]
PTC-Resistor Temperature-Sensors MINIKA to DIN 44 081 and DIN 44 082;
| 型号： | K401315 |
| 厂家： | 
ZIEHL industrie-elektronik GmbH + Co KG |
| 描述： | PTC-Resistor Temperature-Sensors MINIKA to DIN 44 081 and DIN 44 082 |
| 文件： | 总5页 (文件大小：509K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PTC-resistor Temperature Sensors
PTC-Resistor Temperature-Sensors MINIKA®
to DIN 44 081 and DIN 44 082
PTC-resistor temperature sen-
sors (also called PTC-resistors
or thermistors) are temperatur
dependent semiconductor resis-
tors whose main function is to
alter their electrical resistance
drastically when their body tem-
peraturereachesthenominaltrip
temperature NAT (TNF)
PTC-resistors are used principally to protect windings
inelectromotorsortransformersagainstexcesstempe-
rature. They also find application in machines, tooling
machines especially machine bearings and controlling
the temperature of power semiconductors.
General
PTC-resistortemperaturesensorsareparticularlysuited
to this purpose due to their precise response range
combined with small dimensions and minimal thermal
inertia at low cost.
Single PTC-resistor type MINIKA® K
PTFE-insulated strand
Cu, silver-plated
Lead length: 500 ±10 mm
Stripping of lead-ends 10 mm
standard cross-section:
0,14 mm2 (AWG 26)
weight: approx. 2,6 g
Type
NAT°C
Standard ID colour
(DIN 44 081)
Part numbers:
MINIKA®
K60
60 ± 5
70 ± 5
80 ± 5
90 ± 5
100 ± 5
110 ± 5
120 ± 5
130 ± 5
140 ± 5
150 ± 5
160 ± 5
170 ± 5
180 ± 5
white - grey
white - brown
white - white
green - green
red - red
K401000
K401010
K401005
K401015
K401025
K401035
K401045
K401055
K401065
K401075
K401085
K401095
K401090
K70
K 80
K 90
K100
K110
K120
K130
K140
K150
K160
K170
K 180
brown - brown
grey - grey
blue - blue
white - blue
black - black
blue - red
white - green
white - red
2016-09-16
24
ZIEHL industrie-elektronik, 74523 Schwäbisch Hall, Germany, +49 791 504-0, info@ziehl.de, www.ziehl.de
PTC-resistor Temperature Sensors
Triple PTC-resistor type MINIKA® KD
PTFE-insulated strand
Cu, silver-plated
Lead length:
500-180-180-500 ± 10 mm
Stripping of lead ends 10 mm
standard cross-section:
0.14 mm2 (AWG 26)
weight: approx. 3,6 g
Ø 1
1
±10
±10
180
180
0,14²
Type
NAT°C
Standard ID colour
(DIN 44 082)
Part numbers
MINIKA®
KD60
60 ± 5
70 ± 5
white - yellow - yellow - grey
K401300
K401310
K401305
K401315
K401325
K401335
K401345
K401355
K401365
K401375
K401385
K401395
K401390
KD70
white - yellow - yellow - brown
white - yellow - yellow - white
green - yellow - yellow - green
red - yellow - yellow - red
KD80
80 ± 5
KD90
90 ± 5
KD100
KD110
KD120
KD130
KD140
KD150
KD160
KD170
KD180
100 ± 5
110 ± 5
120 ± 5
130 ± 5
140 ± 5
150 ± 5
160 ± 5
170 ± 5
180 ± 5
brown - yellow - yellow - brown
grey - yellow - yellow - grey
blue - yellow - yellow - blue
white - yellow - yellow - blue
black - yellow - yellow - black
blue - yellow - yellow - red
white - yellow - yellow - green
white - yellow - yellow - red
Screw-in sensors in housing G2 (M4) and G3 (M6) MINIKA® KS
PTFE-insulated strand
Cu, silver-platedd
Lead length:
500 ± 10 mm
Stripping of lead ends 10 mm
standard cross-section:
0.14 mm2 (AWG 26)
weight: G2: approx. 5 g
G3: approx. 14 g
Type
NAT°C
Standard ID colour Part numbers
DIN (44 081)
G2 (M4)
G3 (M6)
KS80
80 ± 5
90 ± 5
white - white
green - green
red - red
K302005
K302015
K302025
K302035
K302045
K302109
K302119
K302129
K302139
K302149
KS90
KS100
KS110
KS120
100 ± 5
110 ± 5
120 ± 5
brown - brown
grey - grey
2012-07-30
ZIEHL industrie-elektronik, 74523 Schwäbisch Hall, Germany, +49 791 504-0, info@ziehl.de, www.ziehl.de
25
PTC-resistor Temperatur Sensors
Technichal Data
Design
K
KD
KS
Max. operational voltage
25 V DC
25 V DC
25 V DC
Measuring voltage at
NAT+15K
-20...NAT+5K
≤ 7,5 V DC
≤ 2,5 V DC
≤ 7,5 V DC
≤ 2,5 V DC
≤ 7,5 V DC
≤ 2,5 V DC
Nominal response
60...180°C
60...180°C
80...120°C
temperature NAT (TNF)
Tolerance NAT
± 5 K
± 5 K
± 5 K
Nominal resistance R at
-20...NAT-20K
≤ 250 Ω
≤ 750 Ω
≤ 250 Ω
VPTC ≤ 2,5 V
Rated ambient temperature range
Thermal response-time ta
Storage temperature
-20°C...NAT+20°C
≤ 5 s
≤ 5 s
-
-25°C...+65°C
690 V
Rated insulation voltage Ueff
Test voltage Ueff
690 V
690 V
2500 V AC
2500 V AC
2500 V AC
26
ZIEHL industrie-elektronik, 74523 Schwäbisch Hall, Germany, +49 791 504-0, info@ziehl.de, www.ziehl.de
PTC-resistor Temperature Sensors
The resistance of each individual
sensor (according to standard)
must, for temperatures related to
the Nominal Response Tempe-
rature (NAT), have the following
values:
If a varying number of temperature sensors connected
in series to a trip device are subjected to uniform heat,
this results in the following cut-off point:
Resistors
•
1 PTC switches at latest at NAT +15 degrees, at
earliest at NAT +5 degrees.
250 Ohms at temperatures of
-20°C to NAT -20 degrees.
Measurement voltage up to
max. 2.5 V
550 Ohms at a temperature of
NAT-5degrees.Measurement
voltage max. 2.5 V
1330Ohmsatatemperature of
NAT+5degrees.Measurement
voltage max. 2.5 V
4000 Ohms at a temperature
ofNAT+15degrees.Measure-
ment voltage max. 7.5 V
≤
3 PTC (typical instance) switch at latest at NAT +5
degrees, at earliest at NAT -5 degrees.
•
1
6 PTC switch at latest at NAT, at earliest at NAT
-20 degrees.
(Absolutely uniform heating of all sensors virtually
never occurs in this instance).
≤
≥
≥
•
4000 Ω
1650 Ω
Theexactvaluesoftheresistance
values in the temperature ranges
arenotrelevant.Flawlesssensors
should have a cold resistance
of between 20 and at most 250
Ohms. Typical values (ambient
temperature) lie between 50
- 150 Ohms.
1330 Ω
3
eand
550 Ω
250 Ω
2
Whenthecoldresistanceiswithin
these limits, short-circuit and in-
terruption can be excluded. For
checking the nominal response
temperature, the sensors have
to be heated up to this tempe-
rature.
-20 °C
NAT
-20 ° -5 °
NAT
NAT
NAT NAT
+5 ° +15 °
Temperatur
Schaltbereich Auslösegeräte
1 PTC
3 PTC in Reihe
In accordance with standards,
tripdevicesswitchbetween1650
Ohms and 4000 Ohms.
1
2
3
6 PTC in Reihe
For built-in PTC-resistors, we the values recommended in the table, on the basis
recommend the following nomi- of trial and error. When it is intended as a preliminary
nal cut-off temperature values warning, the value recommended as nominal response
for machines which are used to temperature is 20°C below the break temperature.
full capacity within permissible
Insulation classes
heatinglimitsinkeepingwiththeir
insulation class (VDE 0530).
Insulation material class
Thesevaluescanthenbecorres-
pondingly reduced for machines
120 (E) 130 (B) 155 (F)
120°C 130°C 150°C
180 (H)
at less than full capacity. In
some instances it might prove
necessary to work out nominal
response temperature values
which deviate somewhat from
ZIEHL industrie-elektronik, 74523 Schwäbisch Hall, Germany, +49 791 504-0, info@ziehl.de, www.ziehl.de
27
PTC-resistor Temperatur Sensors
PTC-resistors can only be fitted
To fit the temperature sensors, the ready-shaped
winding heads are spread apart in the centre using
a piece of winding wood. The temperature sensors
should be inserted parallel to the winding wires, care
beingtakenthatthewindingwiresareactuallytouching
the temperature sensors. Cavities and air-occlusions
impair heat contact and can be minimized by exerting
pressure by hand to close the gap between winding
wires and sensors. At the spot where the sensors
are to be fitted, the winding wires on the end winding
should be tightly bandaged. If the wire is more than 1
mm2 thick, intervening spaces should be filled in with
resin thickened with quartz powder.
Fitting PTC-resistor
temperature sensors
before a winding has been im-
pregnated by the motor manu-
facturer. Itisnotpossibletoinsert
them at a later stage.
Each winding has a sensor of
its own. This means fitting 3 in
single-speed motors and 6 in
pole changing motors, with these
sensors arranged in series and
takentoseparateterminalsinthe
terminal box.
Measuring circuit must be pro-
vided with a separate power
supply. The use of motor supply
lines or other main current lines
isunacceptable.Shieldedsupply
lines must be used in case induc-
tive or capacitive interference is
producedbynearbyhigh-voltage
lines.
If the motor manufacturer uses special saturants or im-
pregnatingresinswhosechemicalbehaviourisanything
but neutral, or if he uses some special working method,
he will have to test the temperature sensors' resistivity
himself in the operating conditions he will use.
To prevent peaks in interference voltage due to the
formation of loops, we recommed that the connecting
strand be fed back on the same side as the lead.
The maximum line lenght for a
cable diameter of 0.5 mm2 is ap-
prox.500m.Forgreaterdiameter
cable, correspondingly more.
Fitting should, where possible,
be carried out at the warmest
winding head in the exhausted-
air-side of the electrical machine.
Care should be taken to ensure
good heat contact between the
sensors and the winding when
being fitted. The more intimate
the connection between a PTC-
resistor and its winding, the
better the winding temperature
is registered, especially when
temperatures rise sharply. For
thisreason,Temperaturesensors
shouldbeimplantedinthemiddle
of the end winding-heads so as
to be surrounded on all sides by
the winding copper.
AssemblyTip: Do not shorten leads which are too long,
roll them up and fasten them in position.
values ranging from -20°C to NAT -20 degrees should
notexceeded250Ohms.Exactresistancevalueswithin
this temperature range are unimportant. For flawless
sensors, the lowest resistance value is generally above
20 Ohms.
When measurement values are being determined,
care must be taken that the measurement results are
not influenced by the selfwarming of the sensors. In
the course of the manufacturing process, we test all
sensors for NAT and disruptive strength.
A maximum DC-voltage of 2.5
V can be passed through PTC-
resistor temperature sensors
when testing. Buzzers (voltage
peaks)andsimilartestersshould,
therefore, not be used, but only
meters or bridges.
Testing fitted
PTC-resistors
For all measurement voltage va-
lues up to DC 2.5 V, resistance
28
ZIEHL industrie-elektronik, 74523 Schwäbisch Hall, Germany, +49 791 504-0, info@ziehl.de, www.ziehl.de
2016-09-16
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