Magnetic and Hydraulic-Magnetic Circuit Breaker 8345-...
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Current Trip curves and internal resistance (Ω) per pole
rating (A) K1, M1, T1, K2, M2, T2
0.05 452 376
0.1 100 94
1 0.95 0.90
2 0.26 0.20
3 0.10 0.10
5 0.042 0.040
10 < 0.02 < 0.02
15 < 0.02 < 0.02
20 < 0.02 < 0.02
25 < 0.02 < 0.02
30 < 0.02 < 0.02
40 < 0.01 < 0.01
50 < 0.01 < 0.01
60 < 0.01 < 0.01
80 < 0.01 < 0.01
100 < 0.01 < 0.01
125 < 0.01 < 0.01
Description
Typical applications
Approvals
Technical data
Single or multipole hydraulic-magnetic circuit breakers with trip-free-
mechanism and toggle actuation. A choice of switching characteristics
ensures suitability for a wide range of applications. Industry standard
dimensions and panel mounting. Auxiliary contacts optional. Low
temperature sensitivity at rated load.
Approved to CBE standard EN 60934 (IEC 60934) S-type HM CBE.
In the business fields Communication and Transport: power supplies,
switchgear, instrumentation and process control engineering.
8345
1-pole 2-pole
Voltage rating 3 AC 415 V; AC 277/480 V;
AC 120/240 V; AC 240 V; DC 80 V,
Current rating range 0.05...125 A single and multipole
150...180 A single pole, two poles
connected in parallel
higher ratings upon request
Auxiliary circuit AC 240 V 6 A; DC 28 V 3 A
DC 65 V 1 A; DC 80 V 0.5 A
Typical life 10,000 operations at 1 x I
N
Ambient temperature -40...+85 °C (-40...+185 °F)
Insulation co-ordination
(IEC 60664) 2.5 kV/2
reinforced insulation in operating area
Dielectric strength test voltage
operating area AC 3,000 V
pole to pole AC 1,500 V
main to auxiliary circuit AC 3,000 V
switching to trip circuit AC 1,500 V
Insulation resistance > 100 MΩ (DC 500 V)
Degree of protection operating area IP40
(IEC 60529) terminal area IP00
Vibration
with toggle down: 10 g (57-2000 Hz) ±0,76mm (10-57Hz)
at 0.9 I
N
directions 1, 2, 3, 4, 5: 10 g at 1 x I
N
with curves F1, F2: 10 g at 0.8 x I
N
in all planes.
(57-2000 Hz) ±0.76 mm (10-57 Hz)
to IEC 60068-2-6, test Fc
10 frequency cycles/axis
Shock
directions 1, 2, 3, 4, 5: 100 g (11 ms) at 1 x I
N
,
direction 6: 100 g (11 ms) at 0.8 x I
N
,
with curves F1, F2: 100 g (11 ms) at 0.8 x I
N
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 60068-2-3, test Ca
Mass approx. 90 - 120 g per pole
depending on version
VDE (EN 60934) 1- to 6-pole
UL 489
UL 1077 1- to 6-pole
CCC 1- to 4-pole
Standard current ratings and typical internal resistance values
Interrupting capacity
to EN 60934, UL 489 and UL 1077
IEC 60934 – test series E
voltage number of poles I
N
max. (A) I
cn
(A)
DC 80 V 1 + 2 0.02...125 10,000
AC 240/415 V 1 - 6 0.02...80 6 x I
N
AC 240 V 1 0.02...20 5,000
UL 489 – test sequence Z
voltage number of poles I
N
max. (A) I
cn
(A)
DC 80 V 1 + 2 0.5...125 10,000
AC 120 V 1 0.5...80 5,000
AC 120/240 V 1 0.5...80 5,000
AC 240 V 1 (2) 0.5...20 5,000
UL 1077
voltage number of poles I
N
max. (A) I
cn
(A)
DC 80 V 1 + 2 0.02...125 10,000
AC 277/480 V 1 - 6 0.02...70 5,000
