24V-CIRCUIT PROTECTION, ONLY JUST THE RIGHT WAY AGENDA 1 WHY - - PowerPoint PPT Presentation

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24V-CIRCUIT PROTECTION, ONLY JUST THE RIGHT WAY AGENDA 1 WHY - - PowerPoint PPT Presentation

Feb 12, 2023 332 likes •522 views

24V-CIRCUIT PROTECTION, ONLY JUST THE RIGHT WAY AGENDA 1 WHY E-BREAKERS? TYPES OF E-BREAKERS E-BREAKER FEATURES STANDARDS FACTORY 1 VERDEN, GERMANY FACTORY 2 VERDEN, GERMANY K.HEINEMANN/07.12.2017 2 ELECTRONIC CIRCUIT BREAKER FOR 24VDC

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SLIDE 1

AGENDA

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24V-CIRCUIT PROTECTION, ONLY JUST THE RIGHT WAY

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SLIDE 2

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FACTORY 2 VERDEN, GERMANY FACTORY 1 VERDEN, GERMANY

WHY E-BREAKERS? TYPES OF E-BREAKERS E-BREAKER FEATURES STANDARDS

K.HEINEMANN/07.12.2017

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SLIDE 3

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ELECTRONIC CIRCUIT BREAKER FOR 24VDC

WHY E-BREAKERS?

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SLIDE 4

EXAMPLE (CALCULATION)

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Wire: 20/40m, Ø 1mm² Breaker B6A

Wire Resistance: R = ρ*l/A 40m: = 0.71Ω 80m: = 1.42Ω

Power Supply 24V/20A

Maximum Current: I = U/R 40m: = 33.8A 80m: = 16.9A

≈34A ≈17A

Neglected:

  • Contact resistance
  • Failure resistance
  • Breaker resistance

K.HEINEMANN/07.12.2017

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SLIDE 5

EXAMPLE (MEASUREMENT)

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Wire: 20/40m, Ø 1mm² Breaker B6A Power Supply 24V/20A

Maximum Current: I = U/R 40m: = 27.4A 80m: = 13.2A

Based on practical measurement

Tripping Time: 20 s (Total wire length 80m)

K.HEINEMANN/07.12.2017

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SLIDE 6

PRACTICAL EXAMPLE

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Wire: 20m, Ø 1mm² Breaker 6A Electronic Circuit Breaker

Tripping current: 6A Thermomagnetic characteristic

Power Supply 24V/20A

Total wire length: 80m Load of other branches: 10A Tripping Time: 100ms

K.HEINEMANN/07.12.2017

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SLIDE 7

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ELECTRONIC CIRCUIT BREAKER FOR 24VDC GENERAL ADVANTAGES

Compact and Space- Saving Design Easy and beneficial connection to the PLC by optional interfaces Less wiring effort Universal use based

  • n individual

selection of rated channel currents Remote-Switch-On of tripped channels Low Tolerance of tripping curve due to construction and temperature

K.HEINEMANN/07.12.2017

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SLIDE 8

ELECTRONIC CIRCUIT BREAKER FOR 24VDC COMPARISON OF DIFFERENT CHARACTERISTICS

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Voltage Drop

K.HEINEMANN/07.12.2017

No Voltage Drop

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SLIDE 9

ELECTRONIC CIRCUIT BREAKER FOR 24VDC COMPARISON OF DIFFERENT CHARACTERISTICS

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6A Circuit Breaker B Characteristic at 24V DC 6A Electronic Circuit Breaker (Thermomagnetic Characteristic) 6A Electronic Circuit Breaker (With Current Limitation)

K.HEINEMANN/07.12.2017

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SLIDE 10

ELECTRONIC CIRCUIT BREAKER FOR 24VDC SPACE SAVINGS THROUGH COMPACT DESIGN

  • K. HEINEMANN/07.12.2017

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eBreaker 8-Channel minimum 5.25mm per channel Circuit Breaker with auxiliary contactor 27mm per channel Molded Circuit Breaker 18mm per channel

Space for 8 channels: Space for 8 channels: 144mm Space for 8 channels : 216mm 42mm 41mm 70mm

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SLIDE 11

ELECTRONIC CIRCUIT BREAKER FOR 24VDC SWITCH-ON BEHAVIOUR

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Perfect Leveling of inrush current Sequential and load-depended Turn on Downsizing of used Power Supply possible.

K.HEINEMANN/07.12.2017

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SLIDE 12

ELECTRONIC CIRCUIT BREAKER FOR 24VDC IMPORTANT PARAMETERS

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  • Max. Turn on

Capacity

Values from 10.000 to 120.000 µF are stated in datasheets of different suppliers Longer wires result in higher turn on capacities

Resistance to Reverse Feed

High reverse feed currents can result in undefined channel switch off Big differences in availlable E-Breakers from different suppliers If high reverse feed currents are expected, practical tests are recommended

K.HEINEMANN/07.12.2017

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SLIDE 13

ELECTRONIC CIRCUIT BREAKER FOR 24VDC DIAGNOSTIC AND REMOTE-CONTROL VIA INTERFACE

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EFFICIENT TAMPER- PROTECTION WITHOUT MECHANICAL TRIPPING CURRENT SELECTOR READ:

  • CHANNEL STATUS
  • ACTUAL CURRENT
  • INPUT VOLTAGE
  • TRIPPING CURRENT
  • ORDER NO.
  • FIRMWARE REVISION

WRITE/CONFIGURE:

  • SET TRIPPING

CURRENT

  • ON/OFF

(USE AS SWITCH)

  • SET OPTIONS

AVAILLABLE INTERFACES:

  • IO-LINK
  • PROFINET
  • 2-WIRE-INTERFACE
  • CAN
  • MODBUS
  • …

K.HEINEMANN/07.12.2017

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SLIDE 14

ELECTRONIC CIRCUIT BREAKER FOR 24VDC STANDARDIZATION

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IEC/EN Standard for Electronic Circuit Breakers does not exist UL 2367: Solid State Overcurrent Protectors What does that mean? Applications according to UL standards: What does that mean? E-Breakers: State of the Art! Comparable to Current Limitation of SMPS EN-60204-1: Internal melting fuse! Applications according to IEC/EN standards: Reference to UL 2367

K.HEINEMANN/07.12.2017

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SLIDE 15

ELECTRONIC CIRCUIT BREAKER FOR 24VDC NEC CLASS 2 APPLICATIONS

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Class 2: UL 1310 NEC 725 Limited Power Source (LPS) Output Power < 100W Output Current < 8A Simplified UL Approval

K.HEINEMANN/07.12.2017

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SLIDE 16

ELECTRONIC CIRCUIT BREAKER FOR 24VDC CONCLUSION – THE RIGHT WAY OF PROTECTION

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In many applications electronic circuit breakers are the right choice due to… … low tolerance in tripping behaviour … extended monitoring and controling capabilities … space saving … a wide feature variety … the right characteristic for nearly every application … reduced wiring effort

K.HEINEMANN/07.12.2017

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SLIDE 17

THANKS!

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KAI HEINEMANN HEAD OF PRODUCT MANAGEMENT BLOCK TRANSFORMATOREN-ELEKTRONIK GMBH MAX-PLANCK-STRASSE 36-46 27283 VERDEN, GERMANY PHONE 04231 678-109 FAX 04231 678-277 KAI.HEINEMANN@BLOCK.EU

K.HEINEMANN/07.12.2017

CONTACT NETHERLANDS: DANNY LANGBROEK ELINCOM ELECTRONICS B.V. KLAVERBAAN 101-103 2908 KD CAPELLE AAN DEN IJSSEL PHONE 010-2640270 FAX 010-2640275 D.LANGBROEK@ELINCOM.NL