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

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 WHY E-BREAKERS? 4

EXAMPLE (CALCULATION) Wire Resistance: Power Supply R = ρ* l/A 40m: = 0.71 Ω 24V/20A 80m: = 1.42 Ω Maximum Current: I = U/R 40m: = 33.8A Breaker B6A 80m: = 16.9A Neglected: Wire: 20/40m, - Contact resistance - Failure resistance Ø 1mm² - Breaker resistance ≈17A ≈34A K.HEINEMANN/07.12.2017 5

EXAMPLE (MEASUREMENT) Power Supply 24V/20A Maximum Current: I = U/R 40m: = 27.4A Breaker B6A 80m: = 13.2A Wire: 20/40m, Tripping Time: 20 s (Total wire length 80m) Ø 1mm² Based on practical measurement K.HEINEMANN/07.12.2017 6

PRACTICAL EXAMPLE Electronic Circuit Breaker Power Supply Tripping current: 6A 24V/20A Thermomagnetic characteristic Total wire length: 80m Load of other branches: 10A Breaker 6A Wire: 20m, Tripping Time: 100ms Ø 1mm² K.HEINEMANN/07.12.2017 7

ELECTRONIC CIRCUIT BREAKER FOR 24VDC GENERAL ADVANTAGES Low Tolerance of Universal use based tripping curve due to on individual Remote-Switch-On of construction and selection of rated tripped channels temperature channel currents Easy and beneficial Compact and Space- connection to the PLC Less wiring effort Saving Design by optional interfaces K.HEINEMANN/07.12.2017 8

ELECTRONIC CIRCUIT BREAKER FOR 24VDC COMPARISON OF DIFFERENT CHARACTERISTICS Voltage Drop No Voltage Drop K.HEINEMANN/07.12.2017 9

ELECTRONIC CIRCUIT BREAKER FOR 24VDC COMPARISON OF DIFFERENT CHARACTERISTICS 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 10

ELECTRONIC CIRCUIT BREAKER FOR 24VDC SPACE SAVINGS THROUGH COMPACT DESIGN Space for 8 channels: Space for 8 channels : Space for 8 channels: 144mm 216mm 42mm 41mm 70mm eBreaker 8-Channel Molded Circuit Breaker Circuit Breaker with auxiliary contactor minimum 5.25mm 18mm per channel 27mm per channel per channel K. HEINEMANN/07.12.2017 11

ELECTRONIC CIRCUIT BREAKER FOR 24VDC SWITCH-ON BEHAVIOUR Sequential and load-depended Turn on Perfect Leveling of inrush current Downsizing of used Power Supply possible. K.HEINEMANN/07.12.2017 13

ELECTRONIC CIRCUIT BREAKER FOR 24VDC IMPORTANT PARAMETERS Values from 10.000 to Longer wires result in Max. Turn on 120.000 µF are stated Resistance to higher turn on in datasheets of Capacity capacities Reverse Feed different suppliers High reverse feed Big differences in If high reverse feed currents can result in availlable E-Breakers currents are expected, undefined channel from different practical tests are switch off suppliers recommended K.HEINEMANN/07.12.2017 14

ELECTRONIC CIRCUIT BREAKER FOR 24VDC DIAGNOSTIC AND REMOTE-CONTROL VIA INTERFACE AVAILLABLE INTERFACES: - IO-LINK - PROFINET - 2-WIRE-INTERFACE - CAN - MODBUS - … READ: WRITE/CONFIGURE: - CHANNEL STATUS - SET TRIPPING - ACTUAL CURRENT CURRENT - INPUT VOLTAGE - ON/OFF - TRIPPING CURRENT (USE AS SWITCH) - ORDER NO. - SET OPTIONS - FIRMWARE REVISION EFFICIENT TAMPER- PROTECTION WITHOUT MECHANICAL TRIPPING CURRENT SELECTOR K.HEINEMANN/07.12.2017 15

ELECTRONIC CIRCUIT BREAKER FOR 24VDC STANDARDIZATION Applications UL 2367: according to UL Solid State What does that standards: Overcurrent mean? Protectors Applications IEC/EN Standard for Comparable to according to IEC/EN What does that E-Breakers: Electronic Circuit Current Limitation of standards: mean? State of the Art! Breakers SMPS does not exist EN-60204-1: Reference to Internal melting fuse! UL 2367 K.HEINEMANN/07.12.2017 16

ELECTRONIC CIRCUIT BREAKER FOR 24VDC NEC CLASS 2 APPLICATIONS Output Power Class 2: Limited Power < 100W UL 1310 Source (LPS) Output Current NEC 725 < 8A Simplified UL Approval K.HEINEMANN/07.12.2017 17

ELECTRONIC CIRCUIT BREAKER FOR 24VDC CONCLUSION – THE RIGHT WAY OF PROTECTION In many applications electronic circuit … a wide feature breakers are the right variety choice due to… … extended … the right … low tolerance in monitoring and characteristic for tripping behaviour controling nearly every capabilities application … reduced wiring … space saving effort K.HEINEMANN/07.12.2017 18

THANKS! 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 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 K.HEINEMANN/07.12.2017 19