|
|
|
<
Back to Thermal Cutouts |
Protection
For Coils / Windings
|
|
B12 / B13 (Double Contacts)
This thermostat operates as a thermal
cutout. A thermally sensitive bimetal snap-element
with double contacts either opens or closes an elecrtical
circuit by switching at a pre-set response temperature.
Reset follows automatically after a considerable drop
in temperature.
|
| Applications
Single Phase Motors,
Generators, Convertors, Transformers, Pumps, Heating
Elements, Signal Transmitters, Fire Detectors, Magnets,
Relays, Chokes, Coils, Power Supplies, Inverters |
| >
Technical Data |
| ratings |
B12A
/ E |
B12B
/ G |
B13N
/ T |
| version |
normally
closed
Cantherm Code=2 |
normally
open
Cantherm Code=1 |
normally
closed / open |
| rated
current at 250 V 50/60 Hz
(cos 0.95/0.6) |
6.3
A / 6.0 A |
10.0
A / 6.0 A |
13.0
A / 6.0 A |
5.0
A / 1.6 A |
1...100
mA (24 Vdc) |
switching
cycles under rated current |
10,000 |
5,000 |
1,000 |
5,000 |
10,000 |
| max.
current at 250 V 50/60 Hz
(cos 0.95) |
30.0 A |
- |
switching
cycles under max. current |
100 |
- |
| temperature
rating Ta (steps in 5 K) |
70°C...160°C
|
70°C...155°C |
70°C...160/155°C |
tolerances |
standard:+/-
5 K |
| feature
of automatic action |
1.B.M, 2.B, 1.C |
1.B |
- |
contact
resistance
( incl. wire of 100 mm ) |
<
50 mΩ |
| hysteresis |
30
K ± 15 K 1 |
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 2) /-2-9 |
no
approval
required to
voltage ratings
lower than
42 V |
UL |
UL
2111 / UL 873 3) |
| CSA
/ cUL |
C22.2
No. 77 / C22.2 No. 24 3) |
| CQC |
GB14536.1-1998
/ GB14536.10-1996 3) |
1)
at the Ta (upper and lower) limits the hysteresis could
deviate
2) different power rating
3) details on request |
| >
Standard wire ( length 100 ± 10
mm, stripped 6 ± 1 mm ) |
| lead |
Cantherm
code |
MIC
code |
temp.
max. |
operating
voltage max. |
diameter
insulation |
cross
section diameter 2) |
UL
style |
black |
ACDA1) |
L3001) |
150°
C |
300
V |
1.57
mm |
AWG24
/ 0.24 mm2) |
3398 |
yellow |
AEDC |
L310 |
1.80
mm |
AWG20
/ 0.48 mm2) |
black |
AFDA |
L320 |
2.15
mm |
AWG18
/ 0.96 mm2) |
white |
LCDB1) |
L3301) |
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 |
1.50
mm |
AWG18
/ 0.96 mm2) |
black |
ASDA |
L410 |
150°
C |
300
V |
1.65
mm |
AWG20
/ 0.81 mm |
3398 |
white |
DEDB |
L440 |
200°
C |
300
V |
1.51
mm |
AWG20
/ 0.81 mm |
1332 |
1)
B13
only
2)
AWG20 is recommended |
| >
Standard insulation |
| control
type |
nc |
no |
Cantherm
code |
MIC
code |
illust. |
drawing
dimensions (mm) |
technicals
specification |
approvals1) |
| B12 |
A |
B |
Class
B
U103 | C
Class
F
U107 |
G
|
U253 |
|
MIC Version Shown |
shrink
cap
potted |
VDE,UL,
cUL |
B13 |
N |
T |
| B12 |
A |
B |
U155
| X
U186 | 3
|
U186 |
|
|
cap
of PPS
potted |
VDE,
UL, cUL |
B13 |
N |
T |
| >
Specific variations U=
Insulation G= Housing |
| control
type |
nc |
no |
Cantherm
code |
MIC
code |
illust. |
drawing
dimensions (mm) |
technicals
specification |
approvals1) |
| B12 |
A |
B |
none
| 0 |
|
|
|
not
insulated
potted
|
VDE,UL,
cUL, CSA |
B13 |
N |
T |
| B12 |
A |
B |
U112
| L |
U112 |
|
|
epoxy
coated |
VDE,
UL, cUL |
B13 |
N |
T |
| B12 |
A |
B |
U294
| 7 |
U294 |
|
|
housing
of PPS
potted |
VDE,
UL, cUL |
B13 |
N |
T |
| B12 |
A |
B |
Wire
A800
| IZA |
A800 |
|
|
not
insulated
potted |
VDE,
UL, cUL |
| B13 |
N |
T |
| B12 |
E |
G |
G702
| C |
G402 |
|
|
aluminum
housing
thread M4x6
potted
Ta max. 150†C |
VDE,
UL, cUL |
B13 |
N |
T |
| B12 |
E |
G |
G714
| F
|
G714 |
|
|
brass
housing
thread M4x5
potted
Ta max. 150†C |
VDE,
UL, cUL |
| B13 |
N |
T |
1)
B12 only
| >
Heating by current |
The diagram is 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 [ B12A12005L310100U253
] |
| B12 |
A |
120 |
05 |
L310 |
100 |
U253 |
| type |
normally
closed |
temperature |
tolerance
+/-5°C |
lead
wire white, AWG20
UL3398 |
length
100 mm |
shrinkcap
insulation |
| Cantherm
Ordering Example [ B1212025AEDCC0E
] standard version |
| B12 |
120 |
2 |
5 |
AE |
D |
C |
C |
O |
E |
| type |
temperature |
normally
closed |
tolerance
+/-5°C |
wire
leads UL3398 20 AWG |
length
D=4" |
color
yellow |
insulation
U103 |
housing
- none
|
strip
.25" |
| Marking |
B12A
type (B12 nc)
12005 response temperature (120°C),
tolerance (± 5K)
049D date of manufacture (April
2009), country (D = Germany) |
|
|
Thermal
Cutouts
Canadian Thermostats & Control Devices Ltd.