www.e-t-a.de
1
Thermal Overcurrent Circuit Breaker 127-...
1646
1
Description
Typical applications
Ordering information
Approvals
Technical data
Single pole thermal circuit breaker with push-to-reset, tease-free,
trip-free, snap action mechanism (R-type TO CBE to EN 60934; M-type
when fitted with optional manual release feature). Available in versions
for plug-in or integral mounting, track mounting, or with a frame for
snap-in panel mounting. The optional -KF housing is particularly suited
to high humidity and other damp conditions.
Approved to CBE standard EN 60934 (IEC 60934).
Motors, transformers, solenoids, battery chargers, extra low voltage
systems.
127-P10-H-KF 127-T12-H
For further details please see chapter: Technical Information
Voltage rating AC 250 V; DC 28 V
(UL: AC 250 V; DC 50 V)
Current ratings 0.05...25 A
Typical life 0.05...16 A 5,000 operations at 2 x I
N
, inductive
17...25 A 5,000 operations at 2 x I
N
, resistive
Ambient temperature -20...+60 °C (-4...+140 °F)
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
(IEC 60664 and 60664A) test voltage
operating area AC 3,000 V
Insulation resistance > 100 MΩ (DC 500 V)
Interrupting capacity I
cn
0.05...2.5 A 8 x I
N
3...5 A 20 x I
N
6...12 A 200 A
13...25 A 300 A
Interrupting capacity I
N
U
N
(UL 1077) 0.05...20 A AC 250 V 2,000 A
0.05...25 A DC 50 V 2,500 A
Degree of protection operating area IP40
(IEC 60529/DIN 40050) terminal area IP00
Vibration 8 g (57-500 Hz) ± 0.61 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 127-P10-..: approx. 20 g
127-T..-: approx. 35 g
Standard current ratings and typical internal resistance values
Type No.
127
Mounting options
leave blank for integral/plug-in option
T12 track mounting with screw terminals M4
Terminal design (for use with and without flange -F)
P10 blade terminals A6.3-0.8 (QC .250)
Manual release
H manual release facility
Special housing
KF for tropical and high humidity conditions
Current ratings
0.05...25 A
127 - F - P10 - H - KF - 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.
Current
rating (A)
Internal
resistance (Ω)
Current
rating (A)
Internal
resistance (Ω)
0.05 280 1.5 0.6
0.08 100 1.8 0.4
0.1 110 2 0.3
0.15 56 2.5 0.2
0.2 29 3 0.1
0.25 18 3.5 0.06
0.3 14 4 0.06
0.35 9.8 4.5 0.05
0.4 7 5 0.05
0.45 5.9 6 0.02
0.5 4.9 7 0.02
0.6 3.4 8 0.02
0.7 2.5 10 < 0.02
0.8 1.8 15 < 0.02
0.9 1.5 16 < 0.02
1 1.2 20 < 0.02
1.2 0.8 25 < 0.02
Authority Standard Rated voltage Current ratings
VDE IEC / EN 60934 AC 250 V
DC 28 V
0.05 A…25 A
0.05 A…25 A
UL UL 1077 AC 250 V
DC 50 V
0.05 A…20 A
0.05 A…25 A
CSA C22.2 No 235 AC 250 V
DC 50 V
0.05 A…20 A
0.05 A…25 A
CQC GB 17701 AC 250 V
DC 28 V
0.05 A…25 A
0.05 A…25 A
