lem www .lem.com lem reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. 060201/8 page 1/2 current transducer la 100-p for the electronic measurement of currents : dc, ac, pulsed..., with a galvanic isolation between the primary circuit (high power) and the secondary circuit (electronic circuit). electrical data i pn primary nominal r.m.s. current 100 a i p primary current, measuring range 0 .. 150 a r m measuring resistance @ t a = 70c t a = 85c r m min r m max r m min r m max with 12 v @ 100 a max 0 50 0 42 w @ 120 a max 0 22 0 14 w with 15 v @ 100 a max 0 110 20 102 w @ 150 a max 0 33 20 25 w i sn secondary nominal r.m.s. current 50 ma k n conversion ratio 1 : 2000 v c supply voltage ( 5 %) 12 .. 15 v i c current consumption 10 ( @ 15 v ) + i s ma v d r.m.s. voltage for ac isolation test, 50 hz, 1 mn 2.5 kv accuracy - dynamic performance data x accuracy @ i pn , t a = 25c @ 15 v ( 5 %) 0.45 % @ 12 .. 15 v ( 5 %) 0.70 % e l linearity < 0.15 % typ max i o offset current @ i p = 0, t a = 25c 0.10 ma i om residual current 1) @ i p = 0, after an overload of 3 x i pn 0.15 ma i ot thermal drift of i o - 25c .. + 85c 0.05 0.25 ma - 40c .. - 25c 0.10 0.50 ma t ra reaction time @ 10 % of i pn < 5 00 ns t r response time 2) @ 90 % of i pn < 1 s di/dt di/dt accurately followed > 200 a / s f frequency bandwidth (- 1 db) dc .. 200 khz general data t a ambient operating temperature - 40 .. + 85 c t s ambient storage temperature - 50 .. + 95 c r s secondary coil resistance @ t a = 70c 120 w t a = 85c 128 w m mass 18 g standards 3) en 50178 : 1997 notes : 1) the result of the coercive field of the magnetic circuit 2) with a di/dt of 100 a/s 3) a list of corresponding tests is available. features closed loop (compensated) current transducer using the hall effect printed circuit board mounting insulated plastic case recognized according to ul 94-v0. advantages excellent accuracy very good linearity low temperature drift optimized response time wide frequency bandwidth no insertion losses high immunity to external interference current overload capability. applications ac variable speed drives and servo motor drives s tatic converters for dc motor drives battery supplied applications uninterruptible power supplies (ups) switched mode power supplies (smps) power supplies for welding applications. i pn = 100 a 16019
lem www .lem.com lem reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. 060201/8 page 2/2 secondary terminals terminal + : supply voltage + 12 .. 15 v terminal - : supply voltage - 12 .. 15 v terminal m : measure connection remarks i s is positive when i p flows in the direction of the arrow. temperature of the primary conductor should not exceed 100c. dynamic performances (di/dt and response time) are best with a single bar completely filling the primary hole. in order to achieve the best magnetic coupling, the primary windings have to be wound over the top edge of the device. this is a standard model. for different versions (supply voltages, turns ratios, unidirectional measurements...), please contact us. mechanical characteristics general tolerance 0.2 mm primary through-hole 12.7 x 7 mm fastening & connection of secondary 3 pins 0.63 x 0.56 mm recommended pcb hole 0.9 mm dimensions la 100-p (in mm. 1 mm = 0.0394 inch) bottom view front view left view standard 00 year week or n sp .. swiss made
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