Technical data
control type
ratings
version
rated current at 250 V 50/60 Hz ( power factor 0.95 / 0.6 )
switching cycles
max. current at 250 V 50/60 Hz ( power factor 0.95 )
switching cycles under max. current
temperature rating Ta ( steps in 5 K )
tolerances
feature of automatic action
contact resistance ( incl. wire of 100 mm )
hysteresis
dielectric strength ( standard insulation )
shock- / vibration testing ( similar to EN 50155 )
resistances to impregnation
degrees of protection provided by enclosures ( EN 60529 )
suitable for use in protection category
VDE / ENEC
approvals
UL
CSA
1)
2)
B12A / E
normally closed
6.3 A / 4.0 A
10,000
10.0 A / 6.0 A
5,000
30.0 A
100
70 °C ... 160 °C
Standard: ± 5 K
1.B.M, 2.B, 1.C, 3.C
< 50 m
30 K ± 15 K
2 kV
13.0 A / 2.1 A
1,000
B12B / G
normally open
5.0 A / 1.6 A
5,000
1.B, 3.C
400 m/s
2
sine half wave / 100 m/s
2
5 Hz ... 2.000 Hz sine
tight against ordinary resins and lacquers
IP00
I, II
EN 60730-1 / -2-2 / -2-3
1)
/-2-9
UL 2111 / UL 873
2)
C22.2 No. 77 / C22.2 No. 24
2)
different power rating
on demand
Standard wire
(length 100 ± 10 mm, stripped 6 ± 1 mm)
lead
code
L310
150 °C
stranded
white
L320
L340
200 °C
L350
solid
yellow
L410
L440
150 °C
200 °C
300 V
300 V
600 V
1.50 mm
1.65 mm
1.71 mm
AWG18 / 0.96 mm
2
AWG20 / 0.81 mm
AWG20 / 0.81 mm
3398
1332
300 V
2.15 mm
1.26 mm
AWG18 / 0.96 mm
2
temperature
max.
operating
voltage max.
diameter
insulation
1.80 mm
cross section
diameter
AWG20 / 0.48 mm
2
UL
style
3398
AWG20 / 0.62 mm
2
3557
Heating by current
heating [K]
current [A]
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 and marking example
Ordering example
B12
A
120
05 L310 100 U253
shrinkcap insulation
length 100 mm
lead wire white, AWG20
tolerance
temperature
normally closed
type
Marking
B12A
type (B12 nc)
12005
response temperature (120°C), tolerance (± 5K)
026D
date of manufacture (Feb.2006), country (D=Germany)
Deviations from standard controls on request.
Representation office:
CANTHERM
8415 Mountain Sights Avenue • Montreal (Quebec), H4P 2B8, Canada
Tel: (514) 739-3274 • 1-800-561-7207 • Fax: (514) 739-290
E-mail : sales@cantherm.com • Website: www.cantherm.com
09.2006 Subject to change without notice
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