This product is part of Smart Relay Zelio Logic SR2/SR3, an offer of simple automation systems from 10 to 40 I/Os. This discrete I/O extension module offers 8 discrete inputs with 6 relay outputs. It is a module with discrete input voltage of 24V AC. It is an IP20 and IP40 rated product. It weighs 0.22kg. The main application of this module is industry and building/service sector. This product is certified by C-Tick, GL, UL, CSA and GOST. It meets EN/IEC 60068-2-27 Ea, EN/IEC 61000-4-5, EN/IEC 61000-4-12 and EN/IEC 61000-4-4 L3 standards. Easy to use, Zelio Logic provides a real alternative solutions based on cabled logic or specific cards. Specifications Main range of product Zelio Logic Product or component type Discrete I/O extension module Complementary Number or control scheme lines 120 ladder Cycle time 6…90 ms Backup time 10 years 77 °F (25 °C) Clock drift 12 min/year 32…131 °F (0…55 °C) Checks Program memory on each power up [Us] rated supply voltage 24 V AC Supply voltage limits 20.4…28.8 V Supply frequency 50/60 Hz Reverse polarity protection With Discrete input number 8 Discrete input voltage 24 V AC Discrete input current 4.4 mA Discrete input frequency 57...63 Hz 47...53 Hz Voltage state 1 guaranteed >= 14 V discrete input Voltage state 0 guaranteed <= 5 V discrete input Current state 1 guaranteed >= 2 mA discrete input) Current state 0 guaranteed <= 0.5 mA discrete input) Input impedance 4.6 kOhm discrete input Number of outputs 6 relay Output voltage limits 5...30 V DC relay output) 24...250 V AC Contacts type and composition NO relay output Output thermal current 5 A for 2 outputs relay output 8 A for 4 outputs relay output Electrical durability AC-15 500000 cycles 230 V, 0.9 A relay output IEC 60947-5-1 AC-12 500000 cycles 230 V, 1.5 A relay output IEC 60947-5-1 DC-13 500000 cycles 24 V, 0.6 A relay output IEC 60947-5-1 DC-12 500000 cycles 24 V, 1.5 A relay output IEC 60947-5-1 Switching capacity in mA >= 10 mA 12 V relay output) Operating rate in Hz 0.1 Hz at Ie)relay output 10 Hz no load)relay output Mechanical durability 10000000 cycles relay output [Uimp] rated impulse withstand voltage 4 kV EN/IEC 60947-1 and EN/IEC 60664-1 Response time 50 ms ladder from state 0 to state 1)discrete input 50 ms ladder from state 1 to state 0)discrete input 50...255 ms FBD from state 0 to state 1)discrete input 50...255 ms FBD from state 1 to state 0)discrete input 10 ms from state 0 to state 1)relay output 5 ms from state 1 to state 0)relay output Connections - terminals Screw terminals, 1 x 0.25...1 x 2.5 mm² AWG 24...AWG 14) flexible with cable end Screw terminals, 2 x 0.25...2 x 0.75 mm² AWG 24...AWG 18) flexible with cable end Screw terminals, 1 x 0.2...1 x 2.5 mm² AWG 25...AWG 14) semi-solid Screw terminals, 1 x 0.2...1 x 2.5 mm² AWG 25...AWG 14) solid Screw terminals, 2 x 0.2...2 x 1.5 mm² AWG 24...AWG 16) solid Tightening torque 4.43 lbf.in (0.5 N.m) Overvoltage category III IEC 60664-1 Net weight 0.49 lb(US) (0.22 kg)