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Current
Sensitive Thermal Protection For Coils / Windings
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T 10, T 11, T 12, T 21, T22
> Online Tech Info
These thermal cutouts operate by means
of a thermally sensitive bimetal snap-element which
switches a double electrical contact when reaching
a pre-set response temperature. They can be normally
open or normally closed. The electrical current being
switched flows through the bimetal element, which
therefore gives a combination of temperature and current
- sensitivity.
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| Applications
Single Phase Motors,
Generators, Convertors, Transformers, Pumps, Heating
Elements, Signal Transmitters, Fire Detectors, Magnets,
Relays, Chokes, Coils, Power Supplies, Inverters |
| >
Technical Data |
| ratings |
T10A
/ E
T11A / E |
T12A
/ E |
T22A |
T10B
/ G |
T22B
1) |
| version |
normally
closed
code=2 |
normally
open
code=1 |
| rated
current at 250 V 50/60 Hz (power factor 0.95/0.6) |
2.5
A / 1.6 A |
6.3
A / 2.5 A |
20.0
A / 3.0 A |
2.0
A / 1.6 A |
3.5
A / 2.0 A |
switching
cycles under rated current |
10,000 |
| max.
current under failure condition at 250 V 50/60 Hz
(power factor 0.95) |
10.0 A |
12.0
A |
30.0
A |
10.0
A |
20.0
A |
switching
cycles under max. current |
300 |
600 |
300 |
1,000 |
| temperature
rating Ta (steps in 5 K) |
(50)
70°C...180°C 2) |
80°C...160°C 3) |
tolerances |
standard:+/-
5 K |
| feature
of automatic action |
1.C.M, 2.C |
2.B,
1.C, 3.C |
1.B,
2.C |
contact
resistance ( incl. wire of 100 mm ) |
<
50 mΩ |
| hysteresis |
30
K ± 15 K 4) 5) |
dielectric
strength ( standard insulation ) |
2
kV |
| shock
/ vibration testing ( similar to EN 50155 ) |
400
m/s2 sine half wave / 100 m/s2
5 Hz ... 2,000 Hz sine |
resistances
to impregnation |
tight
against ordinary resins and lacquers |
| degrees
of protection provided by enclosures ( EN 60529 ) |
IP00 |
suitable
for use in protection category |
I,
II |
| approvals |
VDE
/ ENEC |
EN
60730-1 / -2-3 6) /-2-9 |
UL |
UL
2111 / UL 873 1) |
- |
CSA
/ cUL |
C22.2
No. 77 / C22.2 No. 24 1) |
- |
- |
| CQC |
GB14536.1-1998
/ GB14536.10-1996 1) |
1)
details on request
2) T10 max. Ta 160°C
3) approval to EN60730-2-2 up to 180°C
4) T10 available with ± 3K tolerances
and smaller hysteresist
5) at the Ta (upper and lower) limits the
hysteresis could deviate
6) different power rating |
| >
Standard wire ( length 100 ± 10
mm, stripped 6 ± 1 mm ) |
| lead |
Cantherm
code |
MIC
code |
temp.
max. |
operating
voltage max. |
diameter
insulation |
cross
section diameter2) |
UL
style |
black |
ACDA |
L300 |
150°
C |
300
V |
1.57
mm |
AWG24
/ 0.24 mm2 |
3398 |
yellow |
AEDC |
L320 |
1.80
mm |
AWG20
/ 0.48 mm2 |
black |
AFDA |
L320
1) |
2.15
mm |
AWG18
/ 0.96 mm2 |
white |
LCDB |
L330 |
200°
C |
600
V |
0.90
mm |
AWG24
/ 0.24 mm2 |
3557 |
white |
LEDB |
L340 |
1.26
mm |
AWG20
/ 0.61 mm2 |
white |
LFDB |
L350
1) |
1.50
mm |
AWG18
/ 0.96 mm2 |
yellow |
|
L400 |
150°
C |
300
V |
1.40
mm |
AWG24
/ 0.51 mm |
3398 |
black |
ASDA |
L410 |
1.65
mm |
AWG20
/ 0.81 mm |
white |
DFDB |
L430 |
200°
C |
300
V |
1.21
mm |
AWG24
/ 0.51 mm |
1180 |
white |
DEDB |
L440 |
1.51
mm |
AWG20
/ 0.81 mm |
1)
T22
only
2) for
T12/T11 AWG20 and for T10 AWG24 is recommended
|
| >
Standard insulation |
| control
type |
nc |
no |
Cantherm
code |
MIC
code |
illust. |
drawing
dimensions (mm) |
technicals
specification |
approvals |
| T10
|
A |
B |
U102
| B |
U250 |
|
different dimensions
for T22 |
shrink
cap
potted
|
VDE,UL,
cUL |
T11,
T12 |
A |
|
U106
| F |
| |
|
|
U103
| C |
U256 |
U107
| G |
| T10 |
A |
B |
U153
| V |
U174 |
|
|
cap
of PPS
potted |
VDE,
UL, cUL |
| T11,
T12
|
A
|
|
U174
| O
|
| >
Specific variations |
| control
type |
nc |
no |
Cantherm
code |
MIC
code |
illust. |
drawing
dimensions (mm) |
technicals
specification |
approvals |
| T10
|
A |
B |
|
|
|
type T11, T12 illustrated |
no
insulation
potted
|
VDE,UL
cUL, CSA |
| T11,
T12 |
A |
|
| T10 |
A |
B |
Insulation
U112
| L |
U112 |
|
|
coated
Ta max. 160°C |
VDE,
UL, cUL |
|
T11, T12 |
A |
|
T11,
T12 |
A |
|
Wire
Type
A334
| 6 |
A334 |
|
|
no
insulation
PCB connector
grid dim. 5.08 |
VDE,
UL, cUL |
T11,
T12 |
A |
|
Insulation
U314
| 4 |
A334
U314 |
|
|
cap
of PPS
PCB connector
grid dim. 5.08 |
VDE,
UL, cUL |
T11,
T12 |
A |
|
|
A334
U315 |
|
|
cap of PPS
PCB connector
grid dimension 5.08 |
VDE,
UL, cUL |
T10 |
A |
B |
|
U293 |
|
|
housing
of PPS
potted |
VDE,
UL, cUL |
T11,
T12 |
A |
|
| T10 |
E |
G |
|
G502 |
|
|
potted
aluminum housing
anodized black M4x6
Ta max. 150°C |
VDE,
UL, cUL |
T11,
T12 |
E |
|
| |
|
|
|
|
|
|
No
insulation
potted |
VDE,
UL, cUL, CSA |
|
|
|
|
U112 |
|
|
coated
Ta Max / 60°C |
VDE,
UL, cUL |
| >
Heating by Current |
The characteristic curves are measured with a thermal
control without any insulation in an oil bath.
Attention:
The heating depends on the thermal conduction of the
control to the equipment or part which should be protected. |
| >
Ordering & Marking Example |
| MIC
Ordering Example [ T11A12005L310100U250
] |
| T11 |
A |
120 |
05 |
L310 |
100 |
U250 |
| type |
normally
closed |
temperature |
tolerance
+/-5°C |
lead
wire white, AWG20 |
length
100 mm |
shrink
cap insulation |
| Cantherm
Ordering Example [ T1112025AEDCB0E
] |
| T11 |
120 |
2 |
5 |
AE |
D |
C |
B |
0 |
E |
| type |
temperature |
normally
closed |
tolerance
+/-5°C |
lead
wire
UL3398
20 AWG |
lead
length
D=4" |
yellow |
insulation
U102 |
housing
- none |
strip
length .25" |
| Marking |
T11A
type (T11 nc)
12005 response temperature
(120°C), tolerance (± 5K)
049C date of manufacture (April
2009), country (C = Canada) |
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Thermal
Cutouts
Canadian Thermostats & Control Devices Ltd.