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2905743
Electronic Circuit Breaker, 40 A, 24 VDC, DIN Rail
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: PHOENIX CONTACT
- Product type: Electronic Circuit Breakers
- Product Range:-; Current Rating:40A; No. of Poles:-; Supply Voltage:24VDC; Circuit Breaker Mounting:DIN Rail; Load Current Max:-; Trip Time:-; SVHC:Lead (15-Jan-2019)
- SVHC: Lead (04-Feb-2026)
- Trip Time: -
- No. of Poles: -
- Product Range: -
- Current Rating: 40A
- Supply Voltage: 24VDC
- Load Current Max: -
- Circuit Breaker Mounting: DIN Rail
| Delivery and price | |
|---|---|
| Units per pack | 10 |
| Price | 119.02 € |
| Current stock | 200+ |
| Lead time | 30 days |
Datasheet
https://www.phoenixcontact.com/gb/products/2905743 ## Electronic device circuit breaker - CBM E4 24DC/0.5-10A NO- ## R - 2905743 Please be informed that the data shown in this PDF Document is generated from our Online Catalog. Please find the complete data in the user's documentation. Our General Terms of Use for Downloads are valid (http://phoenixcontact.com/download) Multi-channel, electronic device circuit breaker with active current limitation for protecting four 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. ## Why buy this product For protection against voltage dips caused by overload and short circuit - Precise nominal current levels of 0.5 to 10 A - Integrated dynamic current limitation - Electronic locking mechanism to increase system safety Early warning when exceeding 80% of the set nominal current per channel - Supply up to 40 A possible Sophisticated remote signaling concept enables monitoring from any location Slim design ## Key Commercial Data |Packing unit|1 STK|1 STK|1 STK|1 STK|||||||| |---|---|---|---|---|---|---|---|---|---|---|---| ||||||||||||| |GTIN|||||||||||| ||||||||||||| |GTIN|4046356992350||||||||||| |Weight per Piece (excluding packing)|234.600 g||||||||||| |Custom tariff number|85362010||||||||||| |Country of origin|Germany||||||||||| ## Technical data ## Dimensions |Height|130 mm| |---|---| |Width|41 mm| |Depth|121 mm| Ambient conditions 08/28/2017 Page 1 / 9 https://www.phoenixcontact.com/gb/products/2905743 ## Electronic device circuit breaker - CBM E4 24DC/0.5-10A NOR - 2905743 ## Technical data ## 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| |Shock (operation)|30g| |Degree of protection|IP20| |General|| |Mounting type|DIN rail: 35 mm| |Protection class|III| |Degree of pollution|2| |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. 40 A DC| ||max. 40 A DC (Per terminal position)| ||0.5 / 1 / 2 / 4 / 6 / 10 A DC (adjustable per output channel)| |Measuring tolerance I|typ. 40 % (0.5 ... 1 A)| ||typ. 10 % (2 - 10 A)| |Rated insulation voltage Ui|30 V (Load circuit)| |Feedback resistance|max. 35 V DC| |Switch-on delay|0.1 s (per output channel)| ||Remote indication contact| |Required backup fuse|not required, integrated failsafe element| |Internal output fuse|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)| |Status display|LED (green, yellow, red)| |Efficiency|> 99 %| |Closed circuit current I0|typ. 42 mA| |Power dissipation|1 W (No-load operation)| ||9 W (Nominal operation)| |Module initialization time|3.3 s| |Waiting time after switch off of a channel|10 s (of overload / short circuit)| |Temperature derating|40 A DC (at 70°C (65°C for UL 2367))| ## General ## Electrical data 08/28/2017 Page 2 / 9 https://www.phoenixcontact.com/gb/products/2905743 ## Electronic device circuit breaker - CBM E4 24DC/0.5-10A NOR - 2905743 ## Technical data ## Electrical data |Electrical data|| |---|---| |Tripping method|E (electronic)| |Dielectric strength|max. 30 V DC (Load circuit)| |Contact type|without electrical isolation| |MTBF (IEC 61709, SN 29500)|2001962 h (at 25 °C)| ||1292135 h (at 40 °C)| ||653352 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 (Falling edge)| |Vibration resistance, frequency|15 Hz ... 150 Hz| |Vibration resistance, acceleration|39.2 m/s²| |Vibration resistance, test duration|90 min.| ## 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| |Connection data|| |Connection name<br>Main circuit IN+<br>Connection method<br>Push-in connection<br>Stripping length<br>18 mm<br>Conductor cross section solid<br>0.75 mm² ... 16 mm²<br>Conductor cross section AWG<br>20 ... 4<br>Conductor cross section, flexible, with ferrule, with plastic sleeve<br>0.75 mm² ... 10 mm²<br>Conductor cross section flexible, with ferrule without plastic sleeve<br>0.75 mm² ... 16 mm²<br>Connection name<br>Main circuit IN-<br>~~=>~~|| ||08/28/2017 Page 3 / 9| https://www.phoenixcontact.com/gb/products/2905743 ## Electronic device circuit breaker - CBM E4 24DC/0.5-10A NOR - 2905743 ## Technical data ## Connection data |Connection data|| |---|---| |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|| |China RoHS|Environmentally friendly use period: unlimited = EFUP-e| ||No hazardous substances above threshold values| ## Environmental Product Compliance ## Drawings 08/28/2017 Page 4 / 9 https://www.phoenixcontact.com/gb/products/2905743 ## Electronic device circuit breaker - CBM E4 24DC/0.5-10A NOR - 2905743 **==> picture [437 x 191] intentionally omitted <==** **----- Start of picture text -----**<br> Diagram Diagram<br>t t<br>| s 1000 | s 1000<br>0,5 ... 1 A 2 ... 10 A<br>100 100<br>10 10<br>1 1<br>0,1 0,1<br>0,01 0,01<br>0,5 1,1 1,3 1,5 2 x IN 0,5 1,1 1,3 1,5 2 x IN<br>**----- End of picture text -----**<br> Trigger characteristic in the DC range Trigger characteristic in the DC range ## Dimensional drawing **==> picture [160 x 98] intentionally omitted <==** **----- Start of picture text -----**<br> 41 121<br>234561 321 0,50,50,5101010 666111 444222<br>78 4 0,510 61 42<br>DC OK RSTI >80%1314 765 0,50,50,5101010 666111 444222<br>21 8 0,510 61 42<br>1<br>2<br>130<br>OUT+<br>SIGNALS<br>IN-<br>IN+<br>**----- End of picture text -----**<br> 08/28/2017 Page 5 / 9 https://www.phoenixcontact.com/gb/products/2905743 ## Electronic device circuit breaker - CBM E4 24DC/0.5-10A NOR - 2905743 ## Application drawing **==> picture [289 x 216] intentionally omitted <==** **----- Start of picture text -----**<br> 21 1 0,510 61 42<br>34 2 0,510 61 42<br>56 3 0,510 61 42<br>13 78 4 0,510 61 42<br>DC OK14 1314 5 0,510 61 42 +<br>24-28V RSTI >80% 6 0,510 61 42 Reset<br>DC OK 7 0,510 61 42<br>++ 21 8 0,510 61 42<br>NL L / +N / - -- 1<br>PE - 2<br>Group<br>I>80%<br>aE message<br>| ~Y<br>OUT+<br>SIGNALS<br>IN-<br>100-240V DC24V 20A IN+<br>ACInput Output<br>**----- End of picture text -----**<br> ## Classifications ## eCl@ss eCl@ss 5.1 27141116 eCl@ss 6.0 27141116 eCl@ss 8.0 27141116 eCl@ss 9.0 27141116 ETIM ETIM 5.0 EC000899 ETIM 6.0 EC000899 ~~ee~~ UNSPSC UNSPSC 13.2 39121410 ~~a~~ ## Approvals ## Approvals ## Approvals UL Listed / cUL Listed / UL Recognized / EAC / DNV GL / cULus Listed 08/28/2017 Page 6 / 9 https://www.phoenixcontact.com/gb/products/2905743 ## Electronic device circuit breaker - CBM E4 24DC/0.5-10A NOR - 2905743 ## Approvals ## Ex Approvals UL Recognized / UL Listed / cUL Listed / cULus Listed ## Approval details UL Listed http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 123528 cUL Listed http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 123528 UL Recognized http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 317172 ~~oe~~ RU C- EAC DE.A*30.B01561 DNV GL http://exchange.dnv.com/tari/ TAA00000U2 cULus Listed ~~oo~~ Accessories Accessories Power supply Power supply unit - TRIO-PS-2G/1AC/24DC/3/C2LPS - 2903147 Primary-switched TRIO POWER power supply with push-in connection for DIN rail mounting, input: 1-phase, output: 24 V DC/3 A C2LPS 08/28/2017 Page 7 / 9 https://www.phoenixcontact.com/gb/products/2905743 ## Electronic device circuit breaker - CBM E4 24DC/0.5-10A NOR - 2905743 ## Accessories Power supply unit - TRIO-PS-2G/1AC/24DC/5 - 2903148 Primary-switched TRIO POWER power supply with push-in connection for DIN rail mounting, input: 1-phase, output: 24 V DC/5 A Power supply unit - TRIO-PS-2G/1AC/24DC/10 - 2903149 Primary-switched TRIO POWER power supply with push-in connection for DIN rail mounting, input: single phase, output: 24 V DC/10 A Power supply unit - TRIO-PS-2G/1AC/24DC/20 - 2903151 Primary-switched TRIO POWER power supply with push-in connection for DIN rail mounting, input: single-phase, output: 24 V DC/20 A Power supply unit - TRIO-PS-2G/3AC/24DC/5 - 2903153 Primary-switched TRIO POWER power supply with push-in connection for DIN rail mounting, input: 3-phase, output: 24 V DC/5 A Power supply unit - TRIO-PS-2G/3AC/24DC/10 - 2903154 Primary-switched TRIO POWER power supply with push-in connection for DIN rail mounting, input: 3-phase, output: 24 V DC/10 A 08/28/2017 Page 8 / 9 https://www.phoenixcontact.com/gb/products/2905743 ## Electronic device circuit breaker - CBM E4 24DC/0.5-10A NOR - 2905743 ## Accessories Power supply unit - TRIO-PS-2G/3AC/24DC/20 - 2903155 Primary-switched TRIO POWER power supply with push-in connection for DIN rail mounting, input: 3-phase, output: 24 V DC/20 A Phoenix Contact 2017 © - all rights reserved http://www.phoenixcontact.com 08/28/2017 Page 9 / 9
Updated at April 23, 2026
Phoenix Contact is a global leader in industrial connection technology, automation systems, and electronic interface solutions. With decades of engineering heritage originating in Germany, the company develops robust components designed to ensure reliable power, data, and signal transmission across demanding manufacturing and industrial environments. The cornerstone of the Phoenix Contact portfolio is its industry-leading selection of connection technologies. The range features an exceptional variety of terminal blocks, including pluggable headers and sockets, highly reliable wire-to-board solutions, and versatile DIN rail terminal blocks. These foundational connectivity components are supported by a comprehensive ecosystem of power distribution blocks, interface modules, marking systems, and accessories engineered for seamless control cabinet wiring. Beyond physical connectivity, Phoenix Contact provides critical components for advanced automation, control, and system protection. The wider offering encompasses a broad spectrum of process controllers, high-efficiency AC/DC converters, and a comprehensive suite of power, safety, and solid-state relays. From precision signal converters and electronic circuit breakers to fiber optic cable assemblies, Phoenix Contact equips engineers with the high-performance technologies required to build secure, highly efficient, and future-ready industrial systems.
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