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Issue C
1
%
Germany (0 91 87) 10-0 - USA (847) 827-7600 - UK (01296) 420336 - www.etacbe.com
Voltage rating
Current ratings
Typical life
Ambient temperature
Insulation co-ordination
(IEC 664 and 664 A)
AC 250 V; DC 28 V
0.05...25 A
5,000 operations at 2 x I
N
-20...+60
°
C
Rated impulse
withstand voltage degree
2.5 kV
reinforced insulation in operating area
Pollution
2
Dielectric strength
(IEC 664 and 664A)
operating area
Insulation resistance
Interrupting capacityI
cn
Test voltage
AC 3000 V
> 100 M
(DC 500 V)
0.05...2.5 A 8 x I
N
3 ... 5 A 20 x I
N
6 ...12 A 200 A
13...25 A 400 A
operating area IP 40
terminal area IP 00
8 g (57-500 Hz)
±
0.61 mm (10-57 Hz)
to IEC 68-2-6, Test Fc,
10 frequency cycles/axis
25 g (11 ms)
to IEC 68-2-27, Test Ea
96 hours at 5 % salt mist,
to IEC 68-2-11, Test Ka
240 hours at 95 % RH
to IEC 68-2-3, Test Ca
approx. 24 g
Degree of protection
(IEC 529/DIN 40050)
Vibration
Shock
Corrosion
Humidity
Mass
Thermal Overcurrent Circuit Breakers 157/158-...
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 threadneck panel mounting, plug-in or integral mounting.
The optional -KF housing is particularly suited to high humidity and
other damp conditions. Approved to CBE standard EN 60934 (IEC
934).
Description
Technical data
157-... 158-...
Typical applications
Motors, transformers, solenoids, extra low voltage wiring systems.
Accessories
See series 127.
- Also
X 200 799 02
Water splash cover/knurled nut assembly for type
157.
As above with the cover bonded to the nut for extra
retention.
X 200 798 01/02 As X 200 799 02 and 01 above but featuring a slotted
knurled ring for wrench front of panel tightening.
X 210 739 01
Water splashcover/hex nut assembly for type 157.
The concertina design is extended when the button
trips to the OFF position.
X 200 799 01
Ordering information
Standard current ratings and typical internal resistance values
Current
rating (A)
0.05
0.08
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
1
1.2
1.5
1.8
2
2.5
Internal
resistance (
)
280
100
110
29
14
7
4.9
3.4
2.5
1.8
1.2
0.8
0.6
0.4
0.3
0.2
Current
rating (A)
3
3.5
4
4.5
5
6
7
8
10
12
13
15
16
20
22
25
Internal
resisance (
)
0.1
0.06
0.06
0.05
0.05
0.02
0.02
0.02
< 0.02
< 0.02
< 0.02
< 0.02
< 0.02
< 0.02
< 0.02
< 0.02
Approvals
Authority
VDE (EN 60934)
CSA, UL
LRoS
Semko (EN 60934)
Voltage ratings
AC 250 V; DC 28 V
AC 250 V
AC 250 V; DC 28 V
AC 250 V; DC 28 V
Current ratings
0.05...25 A
0.1...16 A
0.2...25 A
0.05...25 A
Type No.
157
158
threadneck panel mounting *
integral or plug-in mounting
Terminal design
P10
blade terminals A6.3-0.8
K10
screw terminals M4x6
Special housing
(optional)
KF
for tropical and high humidity conditions
Current ratings
0.05...25 A
157 - P10 - - 10 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.
*mounting hardware bulk shipped