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CBM E8 24DC/0.5-10A NO-R 2905744 PHOENIX CONTACT Electronic device circuit breaker
CBM E8 24DC/0.5-10A NO-R
2905744
PHOENIX CONTACT
1 Pcs.
Electronic device circuit breaker
Multi-channel electronic equipment protection switch with active current limitation to protect eight consumers in 24 V DC in case of overload and short circuit. With assist for rated current and electronic locking of the set rated currents. For installation on DIN rails.
Automation > Device circuit breaker
Over Current Protection
Product condition, packaging, certifications and applicable manufacturer warranty terms are confirmed with the quotation.
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An electronic device circuit breaker functions as a solid-state safeguard within modern DC distribution systems, protecting machinery against overcurrent and short circuits. Units in this category offer precise current limitation and fast tripping times to maintain operational safety across complex automation layouts. Pricing, availability and lead time are confirmed per enquiry through an RFQ.
- Number of poles (EF001391): 1
- Width (EF000008): 41 mm
- Height (EF000040): 130 mm
- Depth (EF000049): 121 mm
- Operating voltage (EF000111): 30 V
- Nominal current (EF000001): 80 A
- Active current limitation x IN (EF011922): 1.5
- Fuse type (EF011923): Electronic
- Fail safe element (EF011924): 15 A
- Switch-off time (EF011925): 0.02 ms
- Max. capacitive load (EF011926): 0.075 µF
- With remote signalling contact (EF000422): Yes
- Ambient temperature during operating (EF007515): -25 °C
More info
▲Key Commercial Data
| Orderkey | 2905744 |
|---|---|
| Packing unit | 1 pc |
| Catalog page | Page 314 (C-4-2017) |
| GTIN | 4046356992367 |
| Weight per Piece (excluding packing) | 325.000 g |
| Custom tariff number | 85362010 |
| Country of origin | DE (Germany) |
Ambient conditions
| 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 |
| Humidity test | 240 h, 95 % RH, 40 °C |
| Altitude | ≤ 6000 m (amsl (above mean sea level)) |
| 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) | |
| Degree of protection | IP20 |
General
| Flammability rating according to UL 94 | V-0 |
|---|---|
| Mounting type | DIN rail: 35 mm |
| Color | light grey RAL 7035 |
| Number of positions | 8 |
| Protection class | III |
| Type | DIN rail module, one-piece |
Electrical data
| Fuse type | electronic |
|---|---|
| Rated surge voltage | 0.5 kV |
| 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) | |
| 0.5 / 1 / 2 / 4 / 6 / 10 A DC (adjustable per output channel) | |
| Measuring tolerance I | typ. 40 % (0.5 A ... 1 A) |
| typ. 10 % (2 - 10 A) | |
| Feedback resistance | max. 35 V DC |
| Fail-safe element | 15 A DC (per output channel) |
| Active current limitation | typ. 2.0 x IN(0.5 - 1 A) |
| typ. 1.5 x IN(2 - 10 A) | |
| 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) |
| 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) | |
| Tripping method | E (electronic) |
| Required backup fuse | not required, integrated failsafe element |
| Dielectric strength | max. 30 V DC (Load circuit) |
| MTBF (IEC 61709, SN 29500) | 1304293 h (at 25 °C) |
| 858501 h (at 40 °C) | |
| 440048 h (at 60°C) | |
| Shutdown time load circuit | 0.02 s (> 1.3 x IN) |
| 30 s (1.1 ... 1.3 x IN) | |
| Undervoltage shutdown load circuit | ≤ 17.8 V DC (active) |
| ≥ 19 V DC (inactive) | |
| Surge voltage shutdown load circuit | ≥ 30.5 V DC (active) |
| ≤ 29.5 V DC (inactive) | |
| Max. capacitive load load circuit | 75000 µF (per channel at 24 V DC) |
| Output voltage status output | 24 V DC |
| Output current status output | max. 20 mA (when I > 80% at at least one channel) |
| Input voltage reset input | 7 V DC ... 30 V DC (Reset with falling edge) |
| Current consumption reset input | typ. 0.4 mA (at 24 V DC) |
Remote indication contact
| Connection name | Remote indication circuit |
|---|---|
| Switching function | N/O contact |
| Stripping length | 10 mm |
| Conductor cross section solid | 0.2 mm² ... 2.5 mm² |
| Conductor cross section AWG | 24 ... 12 |
| Conductor cross section, flexible, with ferrule, with plastic sleeve | 1.5 mm² ... 0.25 mm² |
| Conductor cross section flexible, with ferrule without plastic sleeve | 0.25 mm² ... 2.5 mm² |
| DC operating voltage | 0 V DC ... 30 V DC |
| DC operating current | 1 mA DC ... 100 mA DC |
Signaling
| Channel LED off | off (Channel switched off) |
|---|---|
| Channel LED green | lit (Channel switched on) |
| flashing (Channel switched on, programming mode active) | |
| Channel LED yellow | lit (Channel switched on, channel load > 80% ) |
| Channel LED yellow-green | flashing (Channel switched on, nominal current assistant 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) |
| DC OK LED off | off (No supply voltage) |
| DC OK LED green | lit (Operating voltage in nominal range 18 ... 30 V) |
| DC OK LED yellow | lit (Undervoltage active, voltage ≤ 17.8 V, active channels switched off and channel LEDs are lit red) |
| flashing (Undervoltage shutdown inactive, device was in undervoltage shutdown) | |
| DC OK LED red | lit (Overvoltage shutdown active, voltage ≥ 30.5 V, channels switched off and channel LEDs are lit red) |
| flashing (Overvoltage shutdown inactive, device was in overvoltage shutdown) |
Connection data
| Connection name | Main circuit IN+ |
|---|---|
| Connection method | Push-in connection |
| Stripping length | 18 mm |
| Conductor cross section solid | 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 |
| Connection name | Main circuit IN- |
| Connection method | Push-in connection |
| Stripping length | 10 mm |
| Conductor cross section solid | 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 |
| Connection name | Main circuit OUT |
| Connection method | Push-in connection |
| Stripping length | 10 mm |
| Conductor cross section solid | 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 |
Standards and Regulations
| Standards/specifications | EN 61000-6-2 |
|---|---|
| EN 61000-6-3 | |
| EN 60068-2-6 | |
| EN 60068-2-11 | |
| EN 60068-2-78 |
Environmental Product Compliance
| REACh SVHC | Lead 7439-92-1 |
|---|---|
| China RoHS | Environmentally friendly use period: unlimited = EFUP-e |
| No hazardous substances above threshold values |