High Performance Thermal-Magnetic Circuit Breaker 452-... Description Single pole high performance thermal-magnetic circuit breaker, with tease-free, trip-free, snap action mechanism and push/pull on/off actuation (M-type TM CBE to EN 60934). An indicator band on the push button clearly shows the tripped/off position. Threadneck panel mounted in tracked vehicle and aircraft/general purpose versions. Typical applications Extra low voltage wiring systems on all types of vehicle for land, sea and air defence equipment battery powered machines. 1 452-... Ordering information Type No. Technical data 452 standard delay curve Terminal design K34 screw terminals M6, reinforced For further details please see: www.e-t-a.de/ti e Version Voltage rating DC 28 V FN2 vehicle application LN2 aircraft/general application Current rating range 50...100 A Current ratings Auxiliary circuit 0.5 A, DC 28 V 50...100 A Typical life 2,500 operations at I N 452 - K34 - LN2 - 80 A ordering example Ambient temperature -55...+75 C (-67...+167 F) Insulation co-ordination rated impulse pollution Please be informed that we have minimum ordering quantities to be (IEC 60664 and 60664A) withstand voltage degree observed. 1.5 kV 3 Dielectric strength (IEC 60664 and 60664A) test voltage Standard current ratings and typical volt drop values operating area AC 1,500 V Insulation resistance > 100 M (DC 500 V) Current Volt drop Current Volt drop Interrupting capacity I 6,000 A cn rating (A) (mV)* rating (A) (mV)* Degree of protection operating area IP40 (IEC 60529/DIN 40050) terminal area IP00 50 90 80 92 Vibration 10 g (55-2000 Hz), 0.76 mm (10-55 Hz) 60 85 90 100 to VG 95210, sheet 19, IEC 60068-2-6, test Fc 70 85 100 100 Shock 50 g (11 ms) 75 90 to VG 95210, sheet 28, IEC 60068-2-27, test Ea * Max. values are within the relevant standards. Corrosion 96 hours at 5 % salt mist to VG 95210, sheet 2, IEC 60068-2-11, test Ka (without auxiliary contacts) Approvals Humidity 240 hours at 95 % RH to VG 95210, sheet 7, IEC 60068-2-3, test C Authority Standard Rated voltage Current ratings Explosion to VG 95210, sheet 10, UL UL 1077 DC 28 V 50 A...125 A MIL-STD-202, meth. 109 DC 72 V 50 A...125 A Mass approx. 122 g CSA C22.2 No 235 DC 28 V 50 A100 A DC 72 V 50 A125 A Bw VG 95345, DC 28 V 60 A100 A part 17 Bw LN 29808 AC 115 V, 400 Hz 80 A, 100 A DC 28 V 80 A, 100 A QPL VG 95345, DC 28 V 60 A100 A Canada part 17 Dep. of National Defence QPL TL 5925-001 DC 28 V 60 A100 A Sweden Defence Material Admin. 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. 1948 www.e-t-a.de 180 High Performance Thermal-Magnetic Circuit Breaker 452-... Dimensions 452-K...-... Accessories (approved to VG 95345, part 23) Splash cover/hex nut assembly with O ring (IP66 and IP67) 452-K34-FN2 (VG 95345 T17) X 200 801 08 nickel plated nut, transparent cover tightening torque max. 4 Nm X 200 801 03 matt black finish nut, black cover M12x1 10.6 X 200 801 12 with blackened nut and transparent cover .417 black white lock washer M12x1 1 Splash cover/hex nut assembly with O ring (IP54) X 200 802 01 nickel plated nut X 200 802 02 matt black finish nut 18.25 16 terminal screw .719 .630 36.5 ISO1580-M6x8 with lock washer 1.44 M12x1 DIN 137 B6 tightening torque max. 2.7 Nm mounting holes 9.5 location pin current rating in A Actuator extension (black) .374 to be fitted on the push button X 200 803 01 20 .787 SW14 .551 min. 3.2 max. 55.5 min .126 max. 2.19 thickness 1.5 - 3 mm max. 57 .059 - .118 in. max. 2.24 Internal connection diagram line 1 Accessories Identification collar to be snapped on the push button Y 307 004 01 black Y 307 004 02 white 14 Y 307 004 03 red .551 Y 307 004 04 green I > 6.85 Y 307 004 05 blue .270 2 Typical time/current characteristics 12.35 .486 452- (standard delay) 10000 +75 C +167 F +23 C 1000 +73.4 F 0.65 -55 C .026 -67 F 100 Lock out ring to block the push button in OFF position Y 307 005 01 red 14.6 10 Y 307 005 02 black .575 1 magnetic trip 0.1 magn. holding magn. trip 10.9 Temp current (A) current (A) .429 (C/F) magnetic trip DC 0.01 -55/-67 1280 2160 +23/+73.4 1250 2090 +75/+167 1140 2020 0.001 12 46 810 20 40 6080100 times rated current 0.8 .031 mm This is a metric design and millimeter dimensions take precedence ( ) inch 2 www.e-t-a.de 1948 45 45 max. 3.5 max .138 Trip time in seconds max. 58.5 6.35 max. 2.30 .250 1.5 44 1.73 .059 6 ON .236 12.2 OFF 52 2.05 .480 max. 19 max. 61.5 max .748 max. 2.42 min. 3 +0.2 12.5 min .118 +.008 .492 0.2 9.5 .008 .374 6.4 7.7 .252 .303 17 .669