specifications are subject to change without notice (25.01.06) 1 monitoring relays ac current transformer types a 82-10, a 82-20 ? 5 types of input: 0 - 25 aac 0 - 50 aac 0 - 100 aac 0 - 250 aac 0 - 500 aac ? output: a 82-10: 0 - 20 madc (source) a 82-20: 4 - 20 madc (sink) ? easy interface to plc or setpoint relays pr oduct description ac current metering trans- former for 25, 50, 100, 250 or 500 aac. output current from the transformer is 0-20 madc or 4-20 madc in accordance with iec 60381-1. can be type output input current used with relays dib01, pib01, dic01, pic01 or s183 or directly connected to a plc. power supply on is indicated by a green led on the side of the housing. ordering key t ype selection input cur r ent output cur r ent type no. 25 aac 0 - 20 ma a 82-10 25 50 aac 0 - 20 ma a 82-10 50 100 aac 0 - 20 ma a 82-10 100 250 aac 0 - 20 ma a 82-10 250 500 aac 0 - 20 ma a 82-10 500 25 aac 4 - 20 ma a 82-20 25 50 aac 4 - 20 ma a 82-20 50 100 aac 4 - 20 ma a 82-20 100 250 aac 4 - 20 ma a 82-20 250 500 aac 4 - 20 ma a 82-20 500 input specifications a 82-10/20 25 a 82-10/20 50 a 82-10/20 100 a 82-10/20 250 a 82-10/20 500 current range 0 - 25 aac 0 - 50 aac 0 - 100 aac 0 - 250 aac 0 - 500 aac max. current (continuously) 30 aac 60 aac 120 aac 300 aac 600 aac max. overload cur r ent (t = 30 s) 250 aac 300 aac 700 aac 1500 aac 3000 aac rated insulation voltage input - output 1000 vac rms 1000 vac rms 1000 vac rms 1000 vac rms 1000 vac rms overvoltage category iv (iec 60664) iv (iec 60664) iv (iec 60664) iv (iec 60664) iv (iec 60664) dielectric strength dielectric voltage 6 kvac rms 6 kvac rms 6 kvac rms 6 kvac rms 6 kvac rms rated impulse withstand volt. 12 kv 12 kv 12 kv 12 kv 12 kv (1.2/50 s) (1.2/50 ?) (1.2/50 ?) (1.2/50 ?) (1.2/50 ?) a 82-10 50
2 specifications are subject to change without notice (25.01.06) a 82-10, a 82-20 output specifications rated insulation voltage (cable) 250 vac rms output current 10: 0 - 20 madc 20: 4 - 20 madc power supply (loop voltage) 10 - 40 vdc tolerance of output current @ 50 hz a 82-10 2% 0.08 ma a 82-20 2% temperature variation ?00 ppm/? frequency range 40 hz -1 khz frequency variation 10 ppm/hz maximum output current 35 madc general specifications power on delay < 1 s reaction time < 100 ms worst case reaction time may be up to 5 x indication for power supply on led, green environment degree of protection ip 20 pollution degree 3 (iec 60664) o perating temperature -20 to 50o (-- to +122 o) housing d imensions 95 x 67.5 x 20 mm m aterial abs weight a 82-10 300 g a 82-20 270 g connection cable a 82-10 2 m, 3 x 0.25 mm 2 a 82-20 2 m, 2 x 0.25 mm 2 approval ul ce marking ye s emc electromagnetic compatibility immunity acc. to en 61000-6-1 (tolerance of output current: 2%) acc. to en 61000-6-2 (tolerance of output cur r ent: 5%) emission acc. to en 61000-6-3 a 82-10, a 82-20 ar e cur rent metering transfor mers with standar d sour ce/sink output 0 - 20 ma/4 - 20 ma. this makes it ver y useful as an ac current interface to a plc with madc input. used with relays dib01, pib01, dic01, pic01 or s183 one or mor e setpoints can monitor the cur rent and signal alar m. s 183 also pr o- vides the dc voltage supply for the a 82-10, a 82-20. the metered conductor is drawn through the central hole of the current metering transformer. it is possible to meter cur r ents below the nominal range by drawing the conductor thr ough the hole several times. if the conductor is drawn thr ough the central hole e.g. 5 times, the transformer will register 50 a when the current in the conductor is 10 a. a 82-10 has factor y-set gain (span) adjustment, wher eas a 82-20 has zer o as well as gain (span) adjustment, both factor y-set. note: do not change the set values. mode of operation wiring diagrams a 82-10 ... (source) y el- low black red power supply r l o a d i + a 82-20 ... (sink) grey black loop voltage r l o a d i +
specifications are subject to change without notice (25.01.06) 3 dimensions resistance/voltage curve max. load resistance versus power supply (loop voltage) (v) power supply (loop voltage) max. r load ( ) a 82-10, a 82-20 input/output curve 20 16 12 84 50 100 input (% of range) output (madc) a 8 2 - 2 0 a 8 2 - 1 0
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