electrical data primary nominal primary current type dc current measuring range i pn (a) i p (a) 100 300 nnc-10gfp 200 600 NNC-20GFP 300 900 nnc-30gfp 400 1000 nnc-40gfp v c supply voltage (5 %) 15 v i c current consumption <18 ma v d r.m.s. voltage for ac isolation test, 50/60 hz, 1 mn 2.5 kv r is isolation resistance @ 500 vdc > 1000 m w v out output voltage @ i pn , r l = 10 k w , t a = 25c 4 v r out output internal resistance < 100 w r l load resistance 10 k w accuracy - dynamic performance data x accuracy @ t a = 25c (without offset) <1 % of i pn e l linearity 1) (0 .. i pn ) <1 % of i pn v oe electrical offset voltage, t a = 25c <30 mv v oh hysteresis offset voltage @ i p = 0; after an excursion of 1 x i pn <35 mv v ot thermal drift of v oe nnc-10gfp <2 mv/k nnc-20..40gfp <1 mv/k tc e g thermal drift of the gain (% of reading) <0.1 %/k t r response time @ 90% of i p < 7 m s general data t a ambient operating temperature -10 .. +80 c t s ambient storage temperature -15 .. +85 c m mass 50 g i pn = 50 .. 600 a features hall effect measuring principle galvanic isolation between primary and secondary circuit isolation voltage 2500v low power consumption extended measuring range (3 x i pn ) advantages small size and space saving only one design for wide current ratings range high immunity to external interference. applications ac variable speed drives battery supplied applications uninterruptible power supplies (ups) dc motor drives switched mode power supplies(smps) power supplies for welding applications lem components www.lem.com 050113/1 current transducer nnc-10..40gfp for the electronic measurement of currents: dc, ac, pulsed, mixed, with a galvanic isolation between the primary circuit (high power) and the secondary circuit (electronic circuit). notes : 1) linearity data exclude the electrical offset.
lem reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. nnc-10..40gfp dimensions (in mm)
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