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SR2B121B – compact smart relay, Zelio Logic SR2 SR3, 12 IO, 24V AC, clock, display
SR2B121B
compact smart relay, Zelio Logic SR2 SR3, 12 IO, 24V AC, clock, display

This Schneider Electric Zelio Logic SR2B compact smart relay / programmable controller uses a supply voltage of 24 volts alternating current, has 12 inputs / outputs with screw-clamp terminals, has an integrated clock and LCD display. This compact programmable relay is ideal for management, remote control or monitoring of simple automation systems. It is suitable for both industrial and commercial applications. It has compact form-factor, allowing installation on DIN rail. It also offers simple programming, display and diagnosing of malfunctions display and navigation buttons. Simple ladder programming, adapted for non-specialists. Discovery package, coming with Zelio Soft programming software, the simplest way to learn and use this relay. Built-in EEPROM flash memory for data backup up to 10 years, easy-to-recover after a power shortage or incident. This product meets EN/IEC 61000-4-3, EN/IEC 61000-4-4 level 3, EN/IEC 61000-4-11, EN/IEC 60068-2-27 Ea, EN/IEC 61000-4-5, EN/IEC 61000-4-6 level 3, EN/IEC 61000-4-2 level 3, EN/IEC 60068-2-6 Fc and EN/IEC 61000-4-12 standards. Simple to select, install and program, Zelio Logic is suitable for all your applications. Flexible, it offers you the choice of 2 ranges, compact or modular, extendable and 2 programming languages (FBD or LADDER). Easy to use, Zelio Logic provides a real alternative to solutions based on cabled logic or specific cards.

Brand: Schneider Electric

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Specifications
Range Of Product Zelio Logic
Product Or Component Type compact smart relay
Warranty 18 months
Contacts Type And Composition NO relay output
Input Impedance 4.6 kOhm discrete input
Discrete Input Frequency
  • 57...63 Hz
  • 47...53 Hz
Number Of Outputs 4 relay
Output Thermal Current 8 A for all 4 outputs relay output
Discrete Input Voltage 24 V AC
Number Or Control Scheme Lines
  • 0-240 ladder
  • 0-500 FBD
Backup Time 10 years 25 °C
Clock Drift
  • 12 min/year 0-55 °C
  • 6 s/month 25-25 °C
Power Consumption In Va 4 VA without extension
Discrete Input Current 4.4 mA
Current State 1 Guaranteed >= 2 mA discrete input)
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
Clock with
Local Display with
Net Weight 0.25 kg
[Uimp] Rated Impulse Withstand Voltage 4 kV EN/IEC 60947-1 and EN/IEC 60664-1
Voltage State 0 Guaranteed <= 5 V discrete input
Output Voltage Limits
  • 5...30 V DC relay output)
  • 24...250 V AC
Electrical Durability
  • AC-12 500000 cycles 230 V, 1.5 A relay output EN/IEC 60947-5-1
  • AC-15 500000 cycles 230 V, 0.9 A relay output EN/IEC 60947-5-1
  • DC-12 500000 cycles 24 V, 1.5 A relay output EN/IEC 60947-5-1
  • DC-13 500000 cycles 24 V, 0.6 A relay output EN/IEC 60947-5-1
Connections - Terminals
  • 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, 1 x 0.25...1 x 2.5 mm² AWG 24...AWG 14) flexible with cable end
  • screw terminals, 2 x 0.2...2 x 1.5 mm² AWG 24...AWG 16) solid
  • screw terminals, 2 x 0.25...2 x 0.75 mm² AWG 24...AWG 18) flexible with cable end
Analogue Input Number 0
Voltage State 1 Guaranteed >= 14 V discrete input
Current State 0 Guaranteed <= 0.5 mA discrete input)
Supply Voltage Limits 20.4-28.8 V
Overvoltage Category III EN/IEC 60664-1
Mechanical Durability 10000000 cycles relay output
Maximum Supply Current 145 mA without extension)
Tightening Torque 0.5 N.m
Isolation Voltage 1780 V
Switching Capacity In Ma >= 10 mA 12 V relay output)
Protection Type against inversion of terminals (control instructions not executed)
Operating Rate In Hz
  • 0.1 Hz at Ie)relay output
  • 10 Hz no load)relay output
Discrete Input Number 8
Cycle Time 6-90 ms
Supply Frequency 50/60 Hz
[Us] Rated Supply Voltage 24 V AC
Checks program memory on each power up
Rohs Exemption Information Yes
Mercury Free Yes
Environmental Disclosure ENVPEP060406EN
Sustainable Offer Status Green Premium product
Pvc Free Yes
Reach Regulation Reference contains Substances of Very High Concern above the threshold
California Proposition 65 WARNING: This product can expose you to chemicals including: Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
Weee The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins.
China Rohs Regulation X
Circularity Profile ENVEOLI0604006EN
Eu Rohs Directive Pro-active compliance (Product out of EU RoHS legal scope)
Product Certifications
  • C-tick
  • CSA
  • GL
  • UL
  • GOST
Standards
  • EN/IEC 61000-4-3
  • EN/IEC 61000-4-4 level 3
  • EN/IEC 61000-4-11
  • EN/IEC 60068-2-27 Ea
  • EN/IEC 61000-4-5
  • EN/IEC 61000-4-6 level 3
  • EN/IEC 61000-4-2 level 3
  • EN/IEC 60068-2-6 Fc
  • EN/IEC 61000-4-12
Disturbance Radiated/Conducted class B EN 55022-11 group 1
Ambient Air Temperature For Operation
  • -20-40 °C in non-ventilated enclosure IEC 60068-2-1 and IEC 60068-2-2
  • -20-55 °C IEC 60068-2-1 and IEC 60068-2-2
Immunity To Microbreaks 10 ms repeated 20 times
Environmental Characteristic
  • EMC directive EN/IEC 61000-6-2
  • EMC directive EN/IEC 61000-6-3
  • EMC directive EN/IEC 61000-6-4
  • EMC directive EN/IEC 61131-2 zone B
  • low voltage directive EN/IEC 61131-2
Ip Degree Of Protection
  • IP20 IEC 60529 terminal block)
  • IP40 IEC 60529 front panel)
Pollution Degree 2 EN/IEC 61131-2
Ambient Air Temperature For Storage -40-70 °C
Relative Humidity 95-95 % without condensation or dripping water
Maximum Altitude Transport 3048 m
Operating Altitude 6561.68 ft (2000 m)
Documents
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