Datasheet
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Thermal Overcurrent Circuit Breakers 104/105/106-...
1628
2
Description
Typical applications
Ordering information
Approvals
Technical data
Miniaturised single pole thermal circuit breaker with push-to-reset, 
tease-free, trip-free, snap action mechanism (R-type TO CBE to EN 
60934). Available in versions for PCB or panel mounting, snap-in or 
threadneck, or as an integral type. Approved to CBE standard EN 
60934 (IEC 60934). For higher current ratings see type 1140.
Motors, transformers, solenoids, printed circuit boards, hand-held 
machines and appliances, marine applications, caravans.
 104-...   105-...   106-... 
For further details please see chapter: Technical Information
Voltage rating  AC 240 V; DC 48 V 
    (UL: AC 250 V; DC 48 V)
Current ratings  0.05...10 A
Typical life  0.05...5 A  1,000 operations at 2 x I
N
, inductive 
    DC 28 V:  3,000 operations at 2 x I
N
, inductive
    6...8 A  500 operations at 2 x I
N
, inductive 
    10 A  50 operations at 2 x I
N
, inductive
Ambient temperature  -20...+60 °C (-4...+140 °F) T 60
Insulation co-ordination rated impulse  pollution
(IEC 60664 and 60664 A) withstand voltage  degree
    2.5 kV  2
    reinforced insulation in operating area
Dielectric strength  test voltage
(IEC 60664 and 60664A)
  operating area  AC 3,000 V 
Insulation resistance  > 100 MΩ (DC 500 V)
Interrupting capacity I
cn
  0.05...8 A  6 x I
N 
AC
    0.05...10 A  6 x I
N 
DC
Interrupting capacity  I
N
  U
N
(UL 1077)  0.05...10 A  AC 250 V  2,000 A
  0.05...10 A  DC 48 V  200 A
Degree of protection  operating area IP40
(IEC 60529/DIN 40050)  terminal area IP00
Vibration  10 g (57-500 Hz) ± 0.76 mm (10-57 Hz),
  to IEC 60068-2-6, test Fc,
  10 frequency cycles/axis
Shock  25 g (11 ms) to IEC 60068-2-27, test Ea
Corrosion  96 hours at 5 % salt mist,
  to IEC 60068-2-11, test Ka
Humidity  240 hours at 95 % RH,
    to IEC 60068-2-78, test Cab
Mass  approx. 10 g
Standard current ratings and typical internal resistance values
Type No.
104  PCB mounting type (-PR), or integral type (-P30/P10)
105  snap-in panel mounting
106   threadneck panel mounting with metal hex and plastic knurled nut 
(hardware bulk shipped with 5 pcs plus)
106-M2  threadneck panel mounting 3/8-27UNS with collar, metal hex nut 
  and plastic knurled nut (hardware bulk shipped with 5 pcs plus)
  Terminal design
 P10  blade terminals A6.3-0.8 (QC .250)
  P30  blade terminals A2.8-0.8 (QC .110)
  PR  solder terminal pins for PCB mounting (type 104 only)
  PR3  PCB mounting (vertical), type 104 only
 Current ratings 
    0.05...10 A
106 -  P30 - 5 A ordering example
The exact part number required can be built up from the table of choices shown 
above. Ordering references for optional features should be omitted if not required.
Current
rating (A)
Internal
resistance (Ω)
Current
rating (A)
Internal
resistance (Ω)
0.05 285 1.8 0.28
0.08 134 2 0.25
0.1 81 2.5 0.18
0.2 22 3 0.11
0.3 8.7 3.5 0.076
0.4 5.5 4 0.067
0.5 3.3 4.5 0.051
0.6 2.45 5 ≤ 0.05
0.7 1.6 6 ≤ 0.05
0.8 1.45 7 ≤ 0.05
1 0.9 8 ≤ 0.05
1.2 0.6 10 ≤ 0.05
1.5 0.4
Preferred types Standard current ratings (A)
0.5 0.8 1 1.2 1.5 2 3 4 5 6 8 10
106-P10-
x x x x x  x x x x x x x
106-P30-
x x x x x x x x x x x x
Preferred types
Authority  Standard Rated voltage Current ratings
VDE /SEV IEC/EN 60934 AC 240 V 
DC 48 V
0.02 A… 8 A 
0.02 A…10 A
UL UL1077 AC 250 V 
DC 48 V
0.05 A…10 A 
0.05 A…10 A
CSA C22.2 No 235 AC 250 V 
DC 48 V
0.05 A…10 A 
0.05 A…10 A
CQC GB 17701 AC 240 V 
DC 48 V
0.05 A…8 A 
0.05 A…10 A




