1 description typical applications ordering information approvals (without auxiliary contacts) technical data 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. extra low voltage wiring systems on all types of vehicle for land, sea and air; defence equipment; battery powered machines. 452-... standard current ratings and typical volt drop values type no. 452 standard delay curve terminal design k34 screw terminals m6, reinforced version fn2 vehicle application ln2 aircraft/general application current ratings 50...100 a 452 - k34 - ln2 - 80 a ordering example voltage rating dc 28 v current rating range 50...100 a auxiliary circuit 0.5 a, dc 28 v typical life 2,500 operations at i n ambient temperature -55...+75 c (-67...+167 f) insulation co-ordination rated impulse pollution (iec 60664 and 60664a) withstand voltage degree 1.5 kv 3 dielectric strength (iec 60664 and 60664a) test voltage operating area ac 1,500 v insulation resistance > 100 m (dc 500 v) interrupting capacity i cn 6,000 a degree of protection operating area ip40 (iec 60529/din 40050) terminal area ip00 vibration 10 g (55-2000 hz), 0.76 mm (10-55 hz) to vg 95210, sheet 19, iec 60068-2-6, test fc shock 50 g (11 ms) to vg 95210, sheet 28, iec 60068-2-27, test ea 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 explosion to vg 95210, sheet 10, mil-std-202, meth. 109 mass approx. 122 g current rating (a) volt drop (mv) current rating (a) volt drop (mv) 50 90 80 92 60 85 90 100 70 85 100 100 75 90 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. authority standard rated voltage current ratings ul ul 1077 dc 28 v dc 72 v 50 a...125 a 50 a...125 a csa c22.2 no 235 dc 28 v dc 72 v 50 a100 a 50 a125 a bw vg 95345, part 17 dc 28 v 60 a100 a bw ln 29808 ac 115 v, 400 hz dc 28 v 80 a, 100 a 80 a, 100 a qpl canada dep. of national defence vg 95345, part 17 dc 28 v 60 a100 a qpl sweden defence material admin. tl 5925-001 dc 28 v 60 a100 a high performance thermal-magnetic circuit breaker 452-... www.e-t-a.de 1646 1
2 typical time/current characteristics splash cover/hex nut assembly with o ring (ip66 and ip67) x 200 801 08 nickel plated nut, transparent cover x 200 801 03 matt black finish nut, black cover x 200 801 12 with blackened nut and transparent cover m12x1 splash cover/hex nut assembly with o ring (ip54) x 200 802 01 nickel plated nut x 200 802 02 matt black finish nut m12x1 a ctuator extension (black) to be fitted on the push button x 200 803 01 ?20 17 ?.787 .669 line 1 2 i > dimensions 452-k...-... internal connection diagram thickness 1.5 - 3 mm .059 - .118 in. 12.2 off m12x1 6 on min. 3 52 max. 61.5 max. 3.5 18.25 36.5 max. 58.5 44 1.5 6.35 ?10.6 16 9.5 sw14 max. 55.5 max. 57 max. 19 80 ?12.5 +0.2 9.5 0.2 min. ?3.2 location pin terminal screw iso1580-m6x8 with lock washer din 137 b6 tightening torque max. 2.7 nm current rating in a black white lock washer mounting holes tightening torque max. 4 nm 452-k34-fn2 (vg 95345 t17) max. 2.30 1.73 .059 .250 .236 .480 2.05 max. 2.42 .417 min .118 max .138 .719 1.44 .374 .630 max .748 .492 +.008 .374 .008 min .126 .551 max. 2.19 max. 2.24 45 45 accessories (approved to vg 95345, part 23) 452-? (standard delay) magnetic trip trip time in seconds 12 46 8 10 20 40 ? times rated current 10000 1000 100 10 1 0. 1 0.01 0.001 60 80 100 +75 c +167 f +23 c +73.4 f -55 c -67 f magn. trip current (a) 2160 2090 2020 magnetic trip temp (c/f) magn. holding current (a) 1280 1250 114 0 dc -55/-67 +23/+73.4 +75/+167 identification collar y 307 004 01 black y 307 004 02 white y 307 004 03 red y 307 004 04 green y 307 004 05 blue lock out ring y 307 005 01 red y 307 005 02 black 64 6 1 14 1 46 6 6 1 1 146 4 accessories this is a metric design and millimeter dimensions take precedence ( mm ) inch www.e-t-a.de high performance thermal-magnetic circuit breaker 452-... 1646 1
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