CB E1 24DC/3A NC P - Electronic circuit breaker
2800917
Electronic circuit breaker, 1-pos., active current limitation, 1 N/C contact, plug for base element.
General When mounted in rows without convection cooling, the nominal device current should only be led to a maximum of 80% due to the thermal effect during continuous operation (100% operating factor).
Special precautionary measures must be taken in systems or machines, to prevent components from restarting (e.g., use of a safety PLC).
Parallel connection of multiple circuit breakers is not permitted.
Product type Device circuit breakers
Product family CB E
Type Male
Number of positions 1
No. of channels 1
Insulation characteristics
Degree of pollution 2
General
Operating voltage 24 V DC
18 V DC ... 30 V DC
Nominal current IN 3 A
Rated surge voltage 0.5 kV
Tripping method E (electronic)
Required backup fuse not required, integrated failsafe element
Dielectric strength max. 30 V DC (Load circuit)
Active current limitation typ. 1.25 x IN
Fuse electronic
Closed circuit current I0 typ. 8 mA (When switched on)
typ. 17 mA (With alarm output)
Power dissipation 0.77 W (Nominal operation)
Temperature derating 3 A (at 50 °C)
MTBF (IEC 61709, SN 29500) 8320000 h (at 25 °C with 80 % load)
7410000 h (at 40 °C with 80 % load)
Voltage drop 120 mV (at IN)
Fail-safe element 6 A DC
Load circuit
Shutdown time 300 ms (see time/current characteristic curve)
Undervoltage switch-off < 14 V (typ. OFF)
> 17 V (typ. ON)
Max. capacitive load 20000 µF
Auxiliary contact
Contact connection type floating signal contact
Minimum operating voltage Umin DC 10 V DC
Maximum operating voltage Umax DC 30 V DC
Minimum operating current Imin 10 mA
Max. operating current Imax 0.5 A
Connection method pluggable
Dimensional drawing
Width 12.3 mm
Height 45 mm
Depth 52 mm
Complete module width 12.3 mm
Complete module height 90 mm
Complete module depth 77.3 mm
Color gray (RAL 7042)
black (RAL 9005)
Flammability rating according to UL 94 V-0
Ambient conditions
Degree of protection IP30 (Actuation area)
Ambient temperature (operation) -25 °C ... 50 °C (non-condensing)
Ambient temperature (storage/transport) -40 °C ... 70 °C
Humidity test 96 h, 95 % RH, 40 °C
Vibration (operation) 3g (according to IEC 60068-2-6, Test Fc)
UL approval
Identification UL Listed UL 508
UL Recognized UL 2367
Shipbuilding approval
Identification DNV GL
Standard designation EMV
Standards/specifications EN 61000-6-3
Note Interference emission
Standard designation EMV
Standards/specifications EN 61000-6-2
Note Noise immunity
Mounting type on base element
