LA55-P

w w w . D a t a S h e e t 4 U . c o m Current Transducer LA 55-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). IPN = 50 A Electrical data IPN IP RM Primary nominal r.m.s. current Primary current, measuring range Measuring resistance @ with ± 12 V with ± 15 V ISN KN VC IC Vd @ ± 50 A max @ ± 70 A max @ ± 50 A max @ ± 70 A max 50 0 .. ± 70 TA = 70°C TA = 85°C RM min RM max RM min RM max 10 10 50 50 100 50 160 90 60 95 60 1) 60 1) 135 155 135 2) 135 2) A A Features Closed loop (compensated) current transducer using the Hall effect Ω Ω Ω Ω Printed circuit board mounting Insulated plastic case recognized according to UL 94-V0. Secondary nominal r.m.s. current Conversion ratio Supply voltage (± 5 %) Current consumption R.m.s. voltage for AC isolation test, 50 Hz, 1 mn 50 mA 1 : 1000 ± 12 .. 15 V 10 (@ ± 15 V) + IS mA 2.5 kV Advantages Excellent accuracy Very good linearity Low temperature drift Optimized response time Wide frequency bandwidth No insertion losses High immunity to external interference Accuracy - Dynamic performance data X Accuracy @ IPN , TA = 25°C L ε @ ± 15 V (± 5 %) @ ± 12 .. 15 V (± 5 %) Linearity Offset current @ IP = 0, TA = 25°C Residual current 3) @ IP = 0, after an overload of 3 x I PN Thermal drift of IO 0°C .. + 70°C - 25°C .. + 85°C Reaction time @ 10 % of IP max Response time @ 90 % of IP max di/dt...