CBM E8 24DC/0.5-10A NO-R
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Electronic circuit breaker
2905744
Multi-channel, electronic circuit breaker with active current limitation for protecting eight loads at 24 V DC in the event of overload and short circuit. With nominal current assistant and electronic locking of the set nominal currents. For installation on DIN rails.
Product details
| Product type | Device circuit breakers |
| Product family | CBM |
| Type | DIN rail module, one-piece |
| Number of positions | 1 |
| No. of channels | 8 |
| Insulation characteristics | |
| Protection class | III |
| Pollution degree | 2 |
| General | |
| Operating voltage | 18 V DC ... 30 V DC |
| Rated voltage | 24 V DC |
| Rated current IN | max. 80 A DC (for double supply IN+ with at least 2 x 6 mm²) |
| max. 70 A DC (for UL 2367) | |
| Rated current IN | 0.5 / 1 / 2 / 4 / 6 / 10 A DC (adjustable per output channel) |
| Rated current (pre-adjusted) | 0.5 A |
| Rated surge voltage | 0.5 kV |
| Tripping method | E (electronic) |
| Feedback resistance | max. 35 V DC |
| Required backup fuse | Only required if Imax of the power supply > the short-circuit switching capacity. Integrated failsafe element. |
| Short-circuit switching capacity | 300 A |
| Dielectric strength | max. 30 V DC (Load circuit) |
| Active current limitation | typ. 2.0 x IN (0.5 - 1 A) |
| typ. 1.5 x IN (2 - 10 A) | |
| Fuse | electronic |
| Efficiency | > 99 % |
| Closed circuit current I0 | typ. 50 mA |
| Power dissipation | 1.2 W (No-load operation) |
| 17.2 W (Nominal operation) | |
| Module initialization time | 3.3 s |
| Waiting time after switch off of a channel | 10 s (at overload / short circuit) |
| Measuring tolerance I | typ. 40 % (0.5 A ... 1 A) |
| typ. 10 % (2 A ... 10 A) | |
| Temperature derating | 40 A DC (at 70°C (65°C for UL 2367)) |
| 50 A DC (at 60 °C) | |
| 60 A DC (at 50 °C) | |
| 70 A DC (at 40 °C) | |
| 80 A DC (at 40 °C) | |
| 70 A DC (at 40 °C for UL 2367) | |
| MTBF (IEC 61709, SN 29500) | 1304293 h (at 25 °C) |
| 858501 h (at 40 °C) | |
| 440048 h (at 60 °C) | |
| Fail-safe element | 15 A DC (per output channel) |
| Contact switching type | without electrical isolation |
| Load circuit | |
| Shutdown time | 0.02 s (> 1.3 x IN) |
| 30 s (1.1 ... 1.3 x IN) | |
| Undervoltage switch-off | ≤ 17.8 V DC (active) |
| ≥ 19 V DC (inactive) | |
| Overvoltage switch-off | ≥ 30.5 V DC (active) |
| ≤ 29.5 V DC (inactive) | |
| Max. capacitive load | 75000 µF |
| Switch-on delay | 0.1 s (per output channel) |
| Reset | |
| Input voltage range | 7 V DC ... 30 V DC (Reset with falling edge) |
| Current consumption | typ. 0.4 mA (at 24 V DC) |
| Pulse length | ≥ 50 ms (High signal) |
| ≥ 50 ms (Low signal) | |
| Voltage | < 5 V DC (Low signal) |
| > 8 V DC (High signal) | |
| Status output | |
| Output voltage | 24 V DC |
| Output current | max. 20 mA (when I > 80% at at least one channel) |
| Indicator/remote signaling | |
| Connection name | Remote indication circuit |
| Switching function | N/O contact |
| Operating voltage | 0 V DC ... 30 V DC |
| Operating current | 1 mA DC ... 100 mA DC |
| Main circuit IN+ | |
| Connection method | Push-in connection |
| Stripping length | 18 mm |
| Conductor cross section rigid | 0.75 mm² ... 16 mm² |
| Conductor cross section AWG | 20 ... 4 |
| Conductor cross section, flexible, with ferrule, with plastic sleeve | 0.75 mm² ... 10 mm² |
| Conductor cross section flexible, with ferrule without plastic sleeve | 0.75 mm² ... 16 mm² |
| Main circuit IN- | |
| Connection method | Push-in connection |
| Stripping length | 10 mm |
| Conductor cross section rigid | 0.2 mm² ... 2.5 mm² |
| Conductor cross section AWG | 24 ... 12 |
| Conductor cross section, flexible, with ferrule, with plastic sleeve | 0.25 mm² ... 1.5 mm² |
| Conductor cross section flexible, with ferrule without plastic sleeve | 0.25 mm² ... 2.5 mm² |
| Main circuit OUT | |
| Connection method | Push-in connection |
| Stripping length | 10 mm |
| Conductor cross section rigid | 0.2 mm² ... 2.5 mm² |
| Conductor cross section AWG | 24 ... 12 |
| Conductor cross section, flexible, with ferrule, with plastic sleeve | 0.25 mm² ... 1.5 mm² |
| Conductor cross section flexible, with ferrule without plastic sleeve | 0.25 mm² ... 2.5 mm² |
| Remote indication circuit | |
| Stripping length | 10 mm |
| Conductor cross section rigid | 0.2 mm² ... 2.5 mm² |
| Conductor cross section AWG | 24 ... 12 |
| Conductor cross section, flexible, with ferrule, with plastic sleeve | 0.25 mm² ... 1.5 mm² |
| Conductor cross section flexible, with ferrule without plastic sleeve | 0.25 mm² ... 2.5 mm² |
| DC OK LED off | off (No supply voltage) |
| DC OK LED yellow | lit (Undervoltage active, voltage ≤ 17.8 V, active channels switched off and channel LEDs are lit red) |
| flashing (Undervoltage switch-off inactive, device was in undervoltage switch-off) | |
| DC OK LED green | lit (Operating voltage in nominal range 18 ... 30 V) |
| DC OK LED red | lit (Overvoltage switch-off active, voltage ≥ 30.5 V, channels switched off and channel LEDs are lit red) |
| flashing (Overvoltage switch-off inactive, device was in overvoltage shutdown) | |
| Channel LED off | off (Channel switched off) |
| Channel LED yellow | lit (Channel switched on, channel load > 80% ) |
| Channel LED yellow-green | flashing (Channel switched on, nominal current assistant active) |
| Channel LED green | lit (Channel switched on) |
| flashing (Channel switched on, programming mode active) | |
| Channel LED red | lit (Channel switched off, over- or undervoltage active) |
| ON temporarily (Channel switched off, 10 s cool-down phase, overload or short-circuit release) | |
| flashing (Channel switched off, ready to be switched back on, overload or short-circuit release) | |
| Channel LED red-yellow | flashing (Channel switched on, overload mode, capacity approximately 110 ... 130% , shutdown after 30 s) |
| Channel LED red-green | flashing (Channel switched off, programming mode active, current adjustment after overload or short-circuit release) |
| Dimensional drawing |
|
| Width | 41 mm |
| Height | 130 mm |
| Depth | 121 mm (incl. DIN rail 7.5 mm) |
| Color | light gray (RAL 7035) |
| gray (RAL 7042) | |
| Material | PC |
| PA 6.6 | |
| PC | |
| PBT-FR17 | |
| POM | |
| Flammability rating according to UL 94 | V-0 |
| Ambient conditions | |
| Degree of protection | IP20 |
| Ambient temperature (operation) | -25 °C ... 70 °C (Startup at -40 C type-tested) |
| -25 °C ... 65 °C (for UL 2367) | |
| Ambient temperature (storage/transport) | -40 °C ... 80 °C |
| Altitude | ≤ 6000 m (amsl) |
| Humidity test | 240 h, 95 % RH, 40 °C |
| Shock (operation) | 30g (IEC 60068-2-27, Test Ea) |
| Vibration (operation) | 5 Hz ... 24.9 Hz (Amplitude ±1.6 mm; in accordance with IEC 60068-2-6, Test Fc) |
| 24.9 Hz … 150 Hz (Acceleration 4g; in accordance with IEC 60068-2-6, Test Fc with additional resonance frequency testing in accordance with DNV GL) | |
| UL approval | |
| Identification | UL/C-UL Listed UL 508 |
| UL Recognized UL 2367 | |
| UL ANSI/ISA-12.12.01 Class I, Division 2, Groups A, B, C, D (Hazardous Location) | |
| Shipbuilding approval | |
| Identification | DNV GL |
| Corrosive gas test | |
| Identification | ISA S71.04.2013 G3 Harsh Group A |
| DNV GL data | |
| Temperature | D |
| Humidity | B |
| Vibration | B |
| EMC | A |
| Enclosure | Required protection according to the Rules shall be provided upon installation on board |
| Standards/specifications | EN 61000-6-2 |
| Note | EMC – Immunity for industrial areas |
| Standards/specifications | EN 61000-6-3 |
| Note | EMC – Emission for residential, business and commercial properties and small operations |
| Standards/specifications | EN 60068-2-6 |
| Note | Environmental influences – Vibrations (sinusoidal) |
| Standards/specifications | EN 60068-2-1 |
| Note | Environmental influences – Part 2-1: Tests – Test A: Cold |
| Standards/specifications | EN 60068-2-2 |
| Note | Environmental influences – Part 2-2: Tests – Test B: Dry heat |
| Standards/specifications | EN 60068-2-78 |
| Note | Environmental influences – Moisture and heat, constant |
| Mounting type | DIN rail: 35 mm |
Your advantages
Easy to configure, thanks to the nominal current assistant
Active current limitation to improve the capacity of the upstream power supply
Adjustable in increments per channel:
from 0.5 A to 10 A
Easy system monitoring with early signaling and direct pickup of information at the product
Increased system availability with intelligent detection of under- and overvoltage