Official DistributorSKU
MPN
PTCB E1 24DC/2A NO
Weight
0.044 kg
Series PTCB-E1
PTCB E1 24DC/2A NO - Electronic circuit breaker
1-channel, electronic circuit breaker for protecting loads at 24 V DC against overload and short circuit. Easy potential distribution with components from the CLIPLINE complete terminal block system. With fixed nominal current. For installation on DIN rails.
- Simple application setup due to bridging option to CLIPLINE complete terminal block system
- More space in the control cabinet: narrowest protection on just 6 mm width
- Individual setup for suitable protection, exactly according to your requirements
- Optimum protection for cables and sensors as well as NEC Class 2 circuits by means of an additional internal output fuse
Technical Specifications
General
| Note | EN 50121-3-2: Railway applications - Electromagnetic compatibility - Part 3-2: Rolling stock – Apparatus |
| Note | Connection for signal line tested in accordance with EN 61000-4-4 with 1 kV; if necessary, customer must provide appropriate protective measures |
| Note | Repeated hard short circuits can reduce the melting integral of the integrated backup fuse. |
Product properties
| Product family | PTCB |
| Type | DIN rail module, one-piece |
| Number of Positions | 1 |
| No. of channels | 1 |
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 | 24 A DC (Total current input) |
| Rated current IN | 2 A DC (Rated current output) |
| Rated current (pre-adjusted) | 2 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. 35 V DC (Load circuit) |
| Fuse | electronic |
| Efficiency | > 99 % |
| Closed circuit current I0 | typ. 12 mA |
| Power dissipation | typ. 0.3 W (No-load operation) |
| Power dissipation | < 0.8 W (Nominal operation) |
| Module initialization time | < 0.55 s |
| Waiting time after switch off of a channel | 5 s (at overload / short circuit) |
| Measuring tolerance I | ± 15 % |
| Temperature derating | 21 A (Total current at 60°C) |
| Temperature derating | 24 A (Total current at 50°C) |
| Temperature derating | 2 A (Channel current at 60°C) |
| Temperature derating | 2 A (Channel current at 50°C) |
| MTBF (IEC 61709, SN 29500) | 28571428 h (at 25 °C with 21 % load) |
| MTBF (IEC 61709, SN 29500) | 14084507 h (at 40°C with 34.25% load) |
| MTBF (IEC 61709, SN 29500) | 2053388 h (at 60°C with 100% load) |
| Voltage drop | 0.06 V (at 2 A) |
| Fail-safe element | 4 A DC |
Load circuit
| Shutdown time | ≤ 10 ms (for short circuit > 2.0 x IN) |
| Shutdown time | 1 s (1.2 ... 2.0 x IN) |
| Undervoltage switch-off | ≤ 17.8 V DC (active) |
| Undervoltage switch-off | ≥ 18.8 V DC (inactive) |
| Overvoltage switch-off | ≥ 30.5 V DC (active) |
| Overvoltage switch-off | ≤ 29.5 V DC (inactive) |
| Max. capacitive load | 14000 µF (Depending on the available short-circuit current) |
Indicator/remote signaling
| Connection name | Remote indication circuit |
| Switching function | N/O contact |
| Operating Voltage | 0 V DC ... 30 V DC |
| Operating current | 100 mA DC |
Main circuit IN+
| Connection Method | Push-in connection |
| Stripping length | 8 mm |
| Conductor cross section flexible | 0.2 mm² ... 2.5 mm² |
| Conductor cross section rigid | 0.2 mm² ... 4 mm² |
| Conductor cross section AWG | 24 ... 12 |
| Conductor cross section, flexible, with ferrule, with plastic sleeve | 0.2 mm² ... 2.5 mm² |
| Conductor cross section flexible, with ferrule without plastic sleeve | 0.2 mm² ... 2.5 mm² |
Main circuit IN-
| Connection Method | Push-in connection |
| Stripping length | 8 mm |
| Conductor cross section flexible | 0.2 mm² ... 2.5 mm² |
| Conductor cross section rigid | 0.2 mm² ... 4 mm² |
| Conductor cross section AWG | 24 ... 12 |
| Conductor cross section, flexible, with ferrule, with plastic sleeve | 0.2 mm² ... 2.5 mm² |
| Conductor cross section flexible, with ferrule without plastic sleeve | 0.2 mm² ... 2.5 mm² |
Main circuit OUT
| Connection Method | Push-in connection |
| Stripping length | 8 mm |
| Conductor cross section flexible | 0.2 mm² ... 2.5 mm² |
| Conductor cross section rigid | 0.2 mm² ... 4 mm² |
| Conductor cross section AWG | 24 ... 12 |
| Conductor cross section, flexible, with ferrule, with plastic sleeve | 0.2 mm² ... 2.5 mm² |
| Conductor cross section flexible, with ferrule without plastic sleeve | 0.2 mm² ... 2.5 mm² |
Remote indication circuit
| Connection Method | Push-in connection |
| Stripping length | 10 mm |
| Conductor cross section flexible | 0.2 mm² ... 2.5 mm² |
| Conductor cross section rigid | 0.2 mm² ... 4 mm² |
| Conductor cross section AWG | 24 ... 14 |
| Conductor cross section, flexible, with ferrule, with plastic sleeve | 0.2 mm² ... 2.5 mm² |
| Conductor cross section flexible, with ferrule without plastic sleeve | 0.2 mm² ... 2.5 mm² |
Signaling
| Channel LED off | off (Channel switched off) |
| Channel LED yellow | lit (Channel switched on, channel load > 80% ) |
| Channel LED yellow | flashing (Programming mode active) |
| Channel LED green | lit (Channel switched on) |
| Channel LED red | lit (Channel switched off, over- or undervoltage active) |
| Channel LED red | ON temporarily (Channel switched off, 5 s cool-down phase, overload or short-circuit release) |
| Channel LED red | flashing (Channel switched off, ready to be switched back on, overload or short-circuit release) |
| Channel LED red | flashing quickly (Channel switched off, external voltage at the output, possible installation error) |
Dimensions
| Width | 6.2 mm |
| Height | 105.8 mm |
| Depth | 55.6 mm (incl. DIN rail 7.5 mm) |
Material specifications
| Color | gray (RAL 7042) |
| Material | PBT |
| Material | PBT |
| Flammability rating according to UL 94 | V-0 |
Ambient conditions
| Degree of Protection | IP20 |
| Ambient Temperature (Operation) | -30 °C ... 60 °C |
| Ambient temperature (storage/transport) | -40 °C ... 70 °C |
| Altitude | ≤ 3000 m up to 52 °C (amsl) |
| Altitude | ≤ 4000 m up to 46 °C (amsl) |
| Humidity test | 96 h, 95 % RH, 40 °C |
| Shock (operation) | 30g (IEC 60068-2-27, Test Ea) |
| Vibration (Operation) | 10 Hz ... 59.6 Hz (Amplitude ±0.35 mm; in accordance with IEC 60068-2-6, Test Fc) |
| Vibration (Operation) | 59.6 Hz … 150 Hz (Acceleration 5g; in accordance with IEC 60068-2-6, Test Fc) |
| Vibration (Operation) | 5 Hz … 100 Hz (Resonance search 4g; resonance frequency 4g; 90 min in accordance with DNV GL Class B) |
UL approval
| Identification | UL/C-UL Listed UL 508 |
| Identification | UL Recognized UL 2367 |
| Identification | NEC Class 2 according to UL 1310 |
| Identification | UL/C-UL Listed ANSI/UL 121201 Class I, Division 2, Groups A, B, C, D; T4 (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 | B |
| Enclosure | A |
Standards and Regulations
| 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 60068-2-78 |
| Note | Environmental influences – Moisture and heat, constant |
| Standards/specifications | EN 50178 |
| Note | Equipping power installations with electronic equipment |
| Standards/specifications | EN 60068-2-6 |
| Note | Environmental influences – Vibrations (sinusoidal) |
| Standards/specifications | EN 60068-2-27 |
| Note | Environmental influences – Shocks |
| Standards/specifications | EN 60068-2-30 |
| Note | Environmental influences – Part 2–30: Tests – Test Db: Damp heat, cyclical |
| Standards/specifications | EN 61373 |
| Note | Railway applications - Rolling stock equipment - Shock and vibration tests |
| Standards/specifications | EN 45545-2 |
| Note | Railway applications - Fire protection on railway vehicles - Part 2: Requirements for fire behavior of materials and components |
Mounting
| Mounting Type | DIN rail: 35 mm |
Accessories
3211757 - Feed-through terminal block, nom. voltage: 800 V, nominal current: 32 A, number of connections: 2, connection method: Push-in connection, Rated cross section: 4 mm2, cross section: 0.2 mm2 - 6 mm2, mounting type: NS 35/7,5, NS 35/15, color: gray
3211771 - Feed-through terminal block, nom. voltage: 800 V, nominal current: 32 A, number of connections: 3, connection method: Push-in connection, Rated cross section: 4 mm2, cross section: 0.2 mm2 - 6 mm2, mounting type: NS 35/7,5, NS 35/15, color: gray
3031364 - Feed-through terminal block, nom. voltage: 800 V, nominal current: 32 A, number of connections: 2, connection method: Spring-cage connection, 1 level, Rated cross section: 4 mm2, cross section: 0.08 mm2 - 6 mm2, mounting type: NS 35/7,5, NS 35/15, color: gray
3206416 - Feed-through terminal block, nom. voltage: 800 V, nominal current: 24 A, number of connections: 2, connection method: Quick connection, 1 level, Rated cross section: 2.5 mm2, cross section: 0.5 mm2 - 2.5 mm2, mounting type: NS 35/7,5, NS 35/15, color: gray
3206445 - Feed-through terminal block, nom. voltage: 800 V, nominal current: 24 A, number of connections: 3, connection method: Quick connection, 1 level, Rated cross section: 2.5 mm2, cross section: 0.5 mm2 - 2.5 mm2, mounting type: NS 35/7,5, NS 35/7,5, color: gray
3209510 - Feed-through terminal block, nom. voltage: 800 V, nominal current: 24 A, number of connections: 2, number of positions: 1, connection method: Push-in connection, Rated cross section: 2.5 mm2, cross section: 0.14 mm2 - 4 mm2, mounting type: NS 35/7,5, NS 35/15, color: gray
3031212 - Feed-through terminal block, nom. voltage: 800 V, nominal current: 24 A, number of connections: 2, connection method: Spring-cage connection, Rated cross section: 2.5 mm2, cross section: 0.08 mm2 - 4 mm2, mounting type: NS 35/7,5, NS 35/15, color: gray
3031306 - Feed-through terminal block, nom. voltage: 800 V, nominal current: 24 A, number of connections: 4, connection method: Spring-cage connection, Rated cross section: 2.5 mm2, cross section: 0.08 mm2 - 4 mm2, mounting type: NS 35/7,5, NS 35/15, color: gray
3205019 - Feed-through terminal block, nom. voltage: 800 V, nominal current: 17.5 A, number of connections: 2, connection method: Quick connection, 1 level, Rated cross section: 1.5 mm2, cross section: 0.25 mm2 - 1.5 mm2, mounting type: NS 35/7,5, NS 35/15, color: gray
3205048 - Feed-through terminal block, nom. voltage: 800 V, nominal current: 17.5 A, number of connections: 3, connection method: Quick connection, 1 level, Rated cross section: 1.5 mm2, cross section: 0.25 mm2 - 1.5 mm2, mounting type: NS 35/7,5, NS 35/7,5, color: gray
3212120 - Feed-through terminal block, nom. voltage: 1000 V, nominal current: 57 A, number of connections: 2, connection method: Push-in connection, Rated cross section: 10 mm2, cross section: 0.5 mm2 - 16 mm2, mounting type: NS 35/7,5, NS 35/15, color: gray
3036110 - Feed-through terminal block, nom. voltage: 1000 V, nominal current: 57 A, number of connections: 2, connection method: Spring-cage connection, Rated cross section: 10 mm2, cross section: 0.2 mm2 - 16 mm2, mounting type: NS 35/7,5, NS 35/15, color: gray
1027586 - Type 3 surge protection, consisting of protective plug and base element, with integrated status indicator for 24 V DC power supplies
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Additional Information
| Pack Size | 1 |
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