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By Phoenix Contact

SKU
MPN
PTCB E1 24DC/1-8A NO
Weight
0.044 kg
Series PTCB-E1

PTCB E1 24DC/1-8A 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 electronic interlock of the set nominal currents. 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
  • Flexible use and reduction of inventory due to adjustable amp values on each device for wide range of applications
  • Individual setup for suitable protection, exactly according to your requirements
Technical Specifications

General

NoteEN 50121-3-2: Railway applications - Electromagnetic compatibility - Part 3-2: Rolling stock – Apparatus
NoteConnection for signal line tested in accordance with EN 61000-4-4 with 1 kV; if necessary, customer must provide appropriate protective measures
NoteRepeated hard short circuits can reduce the melting integral of the integrated backup fuse.

Product properties

Product familyPTCB
TypeDIN rail module, one-piece
Number of Positions1
No. of channels1

Insulation characteristics

Protection classIII
Pollution degree2

General

Operating Voltage18 V DC ... 30 V DC
Rated voltage24 V DC
Rated current IN24 A DC (Total current input)
Rated current IN8 A DC (Rated current output)
Rated current IN1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 A DC (adjustable)
Rated current (pre-adjusted)4 A
Rated surge voltage0.5 kV
Tripping methodE (electronic)
Feedback resistancemax. 35 V DC
Required backup fuseOnly required if Imax of the power supply > the short-circuit switching capacity. Integrated failsafe element.
Short-circuit switching capacity300 A
Dielectric strengthmax. 35 V DC (Load circuit)
Fuseelectronic
Efficiency> 99 %
Closed circuit current I0typ. 12 mA
Power dissipationtyp. 0.3 W (No-load operation)
Power dissipation< 1.6 W (Nominal operation)
Module initialization time< 0.55 s
Waiting time after switch off of a channel5 s (at overload / short circuit)
Measuring tolerance I± 15 %
Temperature derating21 A (Total current at 60°C)
Temperature derating24 A (Total current at 50°C)
Temperature derating7 A (Channel current at 60°C)
Temperature derating8 A (Channel current at 50°C)
MTBF (IEC 61709, SN 29500)25641025 h (at 25 °C with 21 % load)
MTBF (IEC 61709, SN 29500)10989010 h (at 40°C with 34.25% load)
MTBF (IEC 61709, SN 29500)1149425 h (at 55°C with 100% load)
Voltage drop0.13 V (at 8 A)
Fail-safe element15 A DC

Load circuit

Shutdown time≤ 10 ms (for short circuit > 2.0 x IN)
Shutdown time1 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 load25000 µF (Depending on the current setting and the short-circuit current available)

Indicator/remote signaling

Connection nameRemote indication circuit
Switching functionN/O contact
Operating Voltage0 V DC ... 30 V DC
Operating current100 mA DC

Main circuit IN+

Connection MethodPush-in connection
Stripping length8 mm
Conductor cross section flexible0.2 mm² ... 2.5 mm²
Conductor cross section rigid0.2 mm² ... 4 mm²
Conductor cross section AWG24 ... 12
Conductor cross section, flexible, with ferrule, with plastic sleeve0.2 mm² ... 2.5 mm²
Conductor cross section flexible, with ferrule without plastic sleeve0.2 mm² ... 2.5 mm²

Main circuit IN-

Connection MethodPush-in connection
Stripping length8 mm
Conductor cross section flexible0.2 mm² ... 2.5 mm²
Conductor cross section rigid0.2 mm² ... 4 mm²
Conductor cross section AWG24 ... 12
Conductor cross section, flexible, with ferrule, with plastic sleeve0.2 mm² ... 2.5 mm²
Conductor cross section flexible, with ferrule without plastic sleeve0.2 mm² ... 2.5 mm²

Main circuit OUT

Connection MethodPush-in connection
Stripping length8 mm
Conductor cross section flexible0.2 mm² ... 2.5 mm²
Conductor cross section rigid0.2 mm² ... 4 mm²
Conductor cross section AWG24 ... 12
Conductor cross section, flexible, with ferrule, with plastic sleeve0.2 mm² ... 2.5 mm²
Conductor cross section flexible, with ferrule without plastic sleeve0.2 mm² ... 2.5 mm²

Remote indication circuit

Connection MethodPush-in connection
Stripping length10 mm
Conductor cross section flexible0.2 mm² ... 2.5 mm²
Conductor cross section rigid0.2 mm² ... 4 mm²
Conductor cross section AWG24 ... 14
Conductor cross section, flexible, with ferrule, with plastic sleeve0.2 mm² ... 2.5 mm²
Conductor cross section flexible, with ferrule without plastic sleeve0.2 mm² ... 2.5 mm²

Signaling

Channel LED offoff (Channel switched off)
Channel LED yellowlit (Channel switched on, channel load > 80% )
Channel LED yellowflashing (Programming mode active)
Channel LED greenlit (Channel switched on)
Channel LED redlit (Channel switched off, over- or undervoltage active)
Channel LED redON temporarily (Channel switched off, 5 s cool-down phase, overload or short-circuit release)
Channel LED redflashing (Channel switched off, ready to be switched back on, overload or short-circuit release)
Channel LED redflashing quickly (Channel switched off, external voltage at the output, possible installation error)

Dimensions

Width6.2 mm
Height105.8 mm
Depth55.6 mm (incl. DIN rail 7.5 mm)

Material specifications

Colorgray (RAL 7042)
MaterialPBT
MaterialPBT
Flammability rating according to UL 94V-0

Ambient conditions

Degree of ProtectionIP20
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 test96 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

IdentificationUL/C-UL Listed UL 508
IdentificationUL Recognized UL 2367
IdentificationUL/C-UL Listed ANSI/UL 121201 Class I, Division 2, Groups A, B, C, D; T4 (Hazardous Location)

Shipbuilding approval

IdentificationDNV GL

Corrosive gas test

IdentificationISA S71.04.2013 G3 Harsh Group A

DNV GL data

TemperatureD
HumidityB
VibrationB
EMCB
EnclosureA

Standards and Regulations

Standards/specificationsEN 61000-6-2
NoteEMC – Immunity for industrial areas
Standards/specificationsEN 61000-6-3
NoteEMC – Emission for residential, business and commercial properties and small operations
Standards/specificationsEN 60068-2-78
NoteEnvironmental influences – Moisture and heat, constant
Standards/specificationsEN 50178
NoteEquipping power installations with electronic equipment
Standards/specificationsEN 60068-2-6
NoteEnvironmental influences – Vibrations (sinusoidal)
Standards/specificationsEN 60068-2-27
NoteEnvironmental influences – Shocks
Standards/specificationsEN 60068-2-30
NoteEnvironmental influences – Part 2–30: Tests – Test Db: Damp heat, cyclical
Standards/specificationsEN 61373
NoteRailway applications - Rolling stock equipment - Shock and vibration tests
Standards/specificationsEN 45545-2
NoteRailway applications - Fire protection on railway vehicles - Part 2: Requirements for fire behavior of materials and components

Mounting

Mounting TypeDIN rail: 35 mm
Accessories

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