449-K-H-FN-125A

High Performance Thermal-Magnetic Circuit Breakers 446/447/449 Description Single pole thermal-magnetic circuit breakers with tease-free, trip-free, press-to-reset snap action mechanism and special dual button manual release which avoids the danger of unintended disconnection (M-type TM CBE to EN 60934). Surface mounted, compact design available with fast acting, standard and delayed switching characteristics. Options include auxiliary contact and remote electrical disconnection. Typical applications Heavy duty vehicles, battery systems, process control. 1 446-... Ordering information Type No. 446 single pole base mounting, fast characteristic curve 447 single pole base mounting, medium delay characteristic curve 449 single pole base mounting, delayed characteristic curve Terminal design, mounting K screw terminals M12, insertion nuts M8 Manual release H standard Version N general application (type 446 only) FN general application (types 447 and 449 only) Auxiliary contacts (optional) Si 2 electrically separate auxiliary contacts with screw terminals M3.5 and blade terminals DIN 46244-C-MS-S Remote trip (optional) FA24 DC 24 V coil voltage Current ratings 30...400 A type 446 100...400 A type 447 125...500 A type 449 447 - K - H - FN - ... - ... - 400 A ordering example Standard current ratings and typical internal resistance values Internal resistance (Ω) Current ratings (A) 30 0.006 100 < 0.002 40 0.0048 125 < 0.001 Type 446: Internal resistance (Ω) Type 447: 50 0.0038 160 < 0.001 60 0.0028 225 < 0.001 70 0.0025 300 < 0.001 80 0.0023 400 < 0.001 90 0.0019 Type 449: 100 0.0016 125 < 0.001 125 < 0.001 160 < 0.001 150 < 0.001 225 < 0.001 170 < 0.001 315 < 0.001 200 < 0.001 350 < 0.001 225 < 0.001 400 < 0.001 500 < 0.001 250 < 0.001 300 < 0.001 350 < 0.001 400 < 0.001 For further details please see: www.e-t-a.de/ti_e Voltage rating DC 28 V Current rating range type 446: 30...400 A type 447: 100...400 A type 449: 125...500 A Auxiliary circuit 10 A Electrical remote disconnection (-FA) operating voltage DC 12 V or DC 24 V operating current approx. 18 A or 12 A max. pulse time 10 ms < tON < 20 ms / tOFF > 10 s switching time < 20 ms Typical life 1,000 operations at IN 2,000 operations mechanical Ambient temperature -55...+75 °C (-67...+167 °F) Insulation co-ordination Overvoltage category (IEC 60664) pollution degree 2 / 3 Resulting in a rated impulse withstand voltage of 500 V at DC 28 V to DIN EN 60664-1 Dielectric strength (IEC 60664 and 60664A) test voltage operating area AC 1,500 V main circuit to auxiliary contacts AC 1,500 V Insulation resistance > 100 MΩ (DC 500 V) Interrupting capacity Icn 10,000 A Degree of protection operating area IP40 (IEC 60529/DIN 40050) terminal area IP00 Vibration to VG 95210, sheet 19, IEC 60068-2-6, test Fc: without aux. contacts: 10 g (56-500 Hz), ± 0.76 mm (10-55 Hz) with auxiliary contacts: 4 g (56-500 Hz), ± 0.30 mm (10-56 Hz) Shock to VG 95210, sheet 28, IEC 60068-2-27, test Ea: without aux. contacts: 50 g (11 ms) with auxiliary contacts: 20 g (11 ms) Corrosion 96 hours at 5 % salt mist to VG 95210, sheet 2, IEC 60068-2-11, test Ka Humidity 240 hours at 95 % RH to VG 95210, sheet 7, IEC 60068-2-3, test C Mass approx. 850 g Approvals Authority only with 50 % ON duty All dimensions without tolerances are for reference only. In the interest of improved design, performance and cost effectiveness the right to make changes in these specifications without notice is reserved.Product markings may not be exactly as the ordering codes. Errors and omissions excepted. 2248 449-... Technical data The exact part number required can be built up from the table of choices shown above. Ordering references for optional features should be omitted if not required. Please be informed that we have minimum ordering quantities to be observed. Current ratings (A) 447-... UL Standard Rated voltage Current ratings UL 1077 DC 28 V up to 400 A Type 446/ Type 447 CSA C22.2 No 235 DC 28 V up to 400 A Type 449: UL UL 1077 DC 28 V 100...350 A CSA C22.2 No 235 DC 28 V 100…350 A 95345, part 15 DC 28 V 125...500 A www.e-t-a.de Bw 1 High Performance Thermal-Magnetic Circuit Breakers 446/447/449 Dimensions Internal connection diagrams 447-K-H-FN-Si-FA ( ø20 15 ± 1,5 0,5 ON OFF ø26 5 4 hex nut M8 or 5/16"-18-NC 14 mm/.551 in. usable thread length tightening torque max. 3.5 Nm 60 ± 0.3 170 140 current rating in A AUS OFF EIN ON AUS OFF 28 V DC 12 43.5 100 10 1 12 0.1 flat head screw ISO 1580-M4x6 tightening torque max. 0.55 Nm 0.01 This is a metric design and millimeter dimensions take precedence ( mm ) inch 0.001 1 2 20 40 60 80 100 4 6 8 10 … times rated current Typical time/current characteristics 447-… DC 449-… 125…400 A DC 449-… 500 A (50% ON duty/60 min) 10000 1000 1000 1000 100 10 Trip time in seconds 10000 Trip time in seconds 10000 Trip time in seconds 1 line 1 line 1 100 10 100 10 1 1 1 0.1 0.1 0.1 0.01 0.01 0.01 0.001 1 2 +75 °C +167 °F 4 6 8 10 20 0.001 40 60 80 100 … times rated current +23 °C +73.4 °F 1 2 4 6 8 10 20 40 60 80 100 … times rated current DC 0.001 1 2 4 6 8 10 20 40 60 80100 … times rated current -55 °C -67 °F Circuit breakers with remote disconnection facility will trip 10% faster . 2 www.e-t-a.de 2248