1 description typical applications ordering information technical data single pole thermal circuit breaker with push-to-reset, tease-free, trip-free, snap action mechanism (r type to cbe to en 60934). featuring auxiliary contacts (1 x n/c; 1 x n/o) as standard. options include an additional unprotected circuit tap (-a3). approved to cbe standard en 60934 (iec 60934). motors, transformers, solenoids, controls for oil and gas boilers. 2-6400-... for further details please see chapter: technical information voltage rating ac 250 v; dc 28 v current rating range 0.05...16 a auxiliary circuit 1 a, ac 250 v/dc 28 v typical life 0.05...16 a 5,000 operations at 2 x i n , inductive ambient temperature -20...+60 c (-4...+140 f) insulation co-ordination rated impulse pollution (iec 60664 and 60664a) withstand voltage degree 2.5 kv 2 reinforced insulation in operating area dielectric strength (iec 60664 and 60664a) test voltage operating area ac 3,000 v main circuit to aux. circuit ac 1,500 v aux. circuit 4-5 to 6-7 ac 840 v insulation resistance > 100 m (dc 500 v) interrupting capacity i cn 10 x i n interrupting capacity (ul 1077) i n u n 0.05...4.5 a ac 250 v 200 a 5...8 a ac 250 v 1,000 a 8.5...16 a ac 250 v 2,000 a degree of protection operating area ip40 (iec 60529/din 40050) terminal area ip00 vibration 10 g (57-500 hz) 0.76 mm (10-57 hz), to iec 60068-2-6, test fc, 10 frequency cycles/axis shock 40 g (11 ms) to iec 60068-2-27, test ea corrosion 96 hours at 5 % salt mist, to iec 60068-2-11, test ka humidity 240 hours at 95 % rh to iec 60068-2-78, test cab mass approx. 25 g standard current ratings and typical internal resistance values approvals type no. 2-6400 threadneck panel mounting, with auxiliary contacts mounting ig1 moulded threadneck 3/8-27uns-2a with hexnut and plastic knurled nut (hardware bulk shipped for 5 pcs plus) ig2 moulded threadneck m12x1 with hexnut and knurled nut (hardware bulk shipped for 5 pcs plus) terminal design - main circuit l10 solder terminals p10 blade terminals a6.3-0.8 mm (qc .250) shunt terminal (optional) a3 shunt terminal same as main terminal (up to 7/5 a max. load; up to 16 a/10 a max. load) auxiliary contacts si n/o and n/c contacts, solder terminals current ratings 0.05...16 a 2-6400 - .. - p10 - .. - si - 8 a ordering example 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. current rating (a) internal resistance () current rating (a) internal resistance () 0.05 257 2 0.30 0.08 138 2.5 0.20 0.1 90 3 0.12 0.2 32.2 3,5 0.10 0.3 14.6 4 0.07 0.4 8.4 4.5 0.056 0.5 5.15 5 0.046 0.6 3.82 6 0.035 0.7 2.80 7 0.03 0.8 2.15 8 < 0.02 1 1.42 10 < 0.02 1.2 0.96 12 < 0.02 1.5 0.51 15 < 0.02 1.8 0.40 16 < 0.02 authority standard rated voltage current ratings vde iec/en 60934 ac 250 v dc 28 v 0.05 a16 a 0.05 a16 a ul ul 1077 ac 250 v dc 28 v 0.05 a16 a 0.05 a16 a csa c22.2 no 235 ac 250 v dc 28 v 0.05 a16 a 0.05 a16 a thermal overcurrent circuit breaker 2-6400-... www.e-t-a.de 1635 1
2 the time/current characteristic curve depends on the ambient temperature prevailing. in order to eliminate nuisance tripping, please multiply the circuit breaker current ratings by the derating factor shown below. see also section technical information. ambient temperature f c -4 -20 +14 -10 +32 0 +73.4 +23 +104 +40 +122 +50 +140 +60 derating factor 0.76 0.84 0.92 1 1.08 1.16 1.24 22.5 4 42.5 1. 5 4 operating area mounting area .886 1.50 .157 .059 1.71 .157 43.5 installation drawing 7 5 see dimension diagram. -p10 0.05?7 a -p10 8?16 a -p10-a3 0.05?16 a -l10 0.05?7 a -l10 8?16 a -l10-a3 0.05?16 a .197 .276 157 46 2 (-a3) (3) 15 7 46 3 (-a3) (2) 0.05...7 a 8...16 a internal connection diagrams terminal design 1 6 1 1 1 1 1 1 1 3 3 this is a metric design and millimeter dimensions take precedence ( mm ) inch sw14 5 ?6.4 ig1=8.8 ig2=11.3 14.5 16.5 10.5 11.5 46 11 31 16.5 current rating in a ig1=?9.6 -0.1 ig2=?12.2 -0.1 mounting hole ig1= 3 / 8 -27uns-2a tightening torque max. 1 nm ig2=m12x1 tightening torque max. 1.5 nm (moulded threadneck) on off 7 -p10 0.05 - 7a blade terminal din 46244-a6.3-0.8 (qc .250) .252 .650 .886 .433 1.81 .453 .276 1.22 .650 .413 22.5 .571 .551 ig1=.346 ig2=.445 ig1=8.9 -0.1 ig2=11.5 -0.1 ig1=.350 -.004 ig2=.453 -.004 ig1=.378 -.004 ig2=.480 -.004 dimensions thermal overcurrent circuit breaker 2-6400-... thermal overcurrent circuit breaker 2-6400-... www.e-t-a.de 1635 1
3 this is a metric design and millimeter dimensions take precedence ( mm ) inch accessories 2.5 .551 .098 knurled nut y 302 065 01 hex nut y 300 116 02 hex nut with splash cover, black x 201 296 01 without o ring (ip64) x 200 801 03 with o ring (ip66 and ip67) hex nut with splash cover, transparent x 200 801 08 with o ring (ip66 and ip67) m12x1 ?17 m12x1 3.2 0.5 x 45 3 / 8 -27 uns-2b with 3/8" threadneck (-ig1 ) water splash cover transparent with special knurled nut x 200 798 02 (ip64) hex nut with splash cover black without o ring x 210 739 01 (ip64) transparent splash cover x 201 296 03 (ip64) m12x1 m12x1 separate hardware hex nut y 300 192 01 knurled nut y 307 117 02 with m12 threadneck (-ig2 ) 2.5 3 water splash cover, transparent with knurled nut and o ring x 210 663 01 (ip64) sw14 sw14 water splash cover, transparent y 300 538 01 and knurled nut y 300 628 01 x 200 799 01 (ip64) ?15 .551 .098 .118 .591 .669 .020 x 45 .126 3 / 8 -27 uns-2b 3 / 8 -27 uns-2b 3 / 8 -27 uns-2b 3 / 8 -27 uns-2b 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. thermal overcurrent circuit breaker 2-6400-... www.e-t-a.de 1635 1 thermal overcurrent circuit breaker 2-6400-...
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