lem www .lem.com lem reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. 060303/12 page 1/2 current transducer la 200-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 200 a i p primary current, measuring range 0 .. 300 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 @ 200 a max 0 30 0 26 w @ 250 a max 0 8 0 4 w with 15 v @ 200 a max 0 60 0 56 w @ 300 a max 0 12 0 8 w i sn secondary nominal r.m.s. current 100 ma k n conversion ratio 1 : 2000 v c supply voltage ( 5 %) 12 .. 15 v i c current consumption 16 ( @ 15 v ) + i s ma v d r.m.s. voltage for ac isolation test, 50 hz, 1 mn 3 kv v b r.m.s. rated voltage, 1) safe separation 900 v basic isolation 450 v v e r.m.s. voltage for partial discharge extinction > 1.8 kv v w impulse withstand voltage 1.2/50 s > 8 kv accuracy - dynamic performance data x accuracy @ i pn , t a = 25c @ 15 v ( 5 %) 0.40 % @ 12 .. 15 v ( 5 %) 0.65 % e l linearity error < 0.15 % typ max i o offset current @ i p = 0, t a = 25c 0.20 ma i om residual current 2) @ i p = 0, after an overload of 3 x i pn 0.25 ma i ot thermal drift of i o 0c .. + 70c 0.10 0.25 ma - 40c .. + 85c 0.15 0.55 ma t ra reaction time @ 10 % of i p max < 500 ns t r response time 3) 4) @ 90 % of i p max < 1 s di/dt di/dt accurately followed 4) > 200 a / s f frequency bandwidth 4) (- 1 db) dc .. 100 khz general data t a ambient operating temperature - 40 .. + 85 c t s ambient storage temperature - 40 .. + 90 c r s secondary coil resistance @ t a = 70c 76 w t a = 85c 80 w m mass 40 g standards en 50178 : 1997 notes : 1) pollution class 2 2) the result of the coercive field of the magnetic circuit 3) with a di/dt of 100 a/s 4) the primary conductor is best filling the through-hole and/or the return of the primary conductor is above the top of the transducer. 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. application domain industrial. i pn = 200 a 16044
lem www .lem.com page 2/2 lem reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. 060303/12 remarks i s is positive when i p flows in the direction of the arrow. temperature of the primary conductor should not exceed 90c. dynamic performances (di/dt and response time) are best with a primary bar in low position in the through-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 17 x 11 mm fastening & connection of primary 4 pins 0.63 x 0.56 mm recommended pcb hole 0.9 mm supplementary fastening 2 holes ? 1.75 mm recommended pcb hole 2.4 mm recommended screws pt ka 22 x 6 dimensions la 200-p (in mm. 1 mm = 0.0394 inch) bottom view front view left view connection model + nsp
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