Schneider Electric Zelio Logic Compact Smart Relay 12 I/O 24V AC Clock Display SR2B121B
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Brand : Schneider Electric
Type : Compact Smart Relay
Description
Schneider Electric SR2B121B Compact Smart Relay is part of the Zelio Logic range, a range of smart relays for simple automation systems with 10 to 40 I/O. The compact smart relay offers a real alternative to solutions based on hardwired logic or specific cards. It comes with a screen and a clock. Checks program memory at each power-up and from 0 to 240 with ladder programming number or control scheme lines.Â
Zelio Logic is easy to use and offers a real alternative to solutions based on hardwired logic or specific cards. Compact Smart Relay offers 4 normally open contact relay outputs and 8 discrete inputs. It is a smart relay with a nominal supply voltage of 24V AC, a maximum supply current of 145mA (without extension) and a power consumption of 4VA without extension. It is a product with protection classes IP20 and IP40. It weighs 0.25 kg.Â
Schneider Electric SR2B121B Zelio Logic Compact Smart Relay comply with 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, standards 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. Easy to select, install, and program, Zelio Logic is suitable for all the applications. It offers the flexibility to choose between 2 series, compact or modular, expandable, and 2 programming languages ​​(FBD or LADDER).Â
Features
- It comes with a screen and a clock.
- Easy to use and offers a real alternative to solutions based on hardwired logic or specific cards.
- It offers 4 normally open contact relay outputs and 8 discrete inputs.Â
| Brand | Schneider Electric |
| Item Name | Compact Smart Relay |
| Model | SR2B121B |
| Ambient Air Temperature For Storage | -40-70 °C |
| 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 |
| IP Degree Of Protection | IP20 (terminal block) conforming to IEC 60529, IP40 (front panel) conforming to IEC 60529 |
| Mechanical Durability | 10000000 cycles for relay output |
| Tightening Torque | 0.5 N.m |
| Range Of Product | Zelio Logic |
| Supply Voltage Limits | 20.4-28.8 V |
| Contacts Type And Composition | NO for relay output |
| Supply Frequency | 50/60 Hz |
| Number Or Control Scheme Lines | 0-240 with ladder programming, 0-500 with FBD programming |
| Clock Drift | 12 min/year at 0-55 °C, 6 s/month at 25-25 °C |
| Immunity To Microbreaks | 10 ms repeated 20 times |
| Discrete Input Current | 4.4 mA |
| Power Consumption in VA | 4 VA without extension |
| Current State 1 Guaranteed | >= 2 mA (discrete input) |
| Voltage State 1 Guaranteed | >= 14 V for discrete input |
| Maximum Supply Current | 145 mA (without extension) |
| Switching Capacity in mA | >= 10 mA at 12 V (relay output) |
| Maximum Altitude Transport | 3048 m |
| Cycle Time | 6-90 ms |
| Checks | Program memory on each power-up |
| Disturbance Radiated/conducted | Class B conforming to EN 55022-11 group 1 |
| Discrete Input Frequency | 57...63 Hz, 47...53 Hz |
| Output Thermal Current | 8 A for all 4 outputs for relay output |
| Discrete Input Voltage | 12 V DC |
| Backup Time | 10 years at 25 °C |
| Clock | With |
| Local Display | With |
| Voltage State 0 Guaranteed | <= 5 V for discrete input |
| Current State 0 Guaranteed | <= 0.5 mA (discrete input) |
| Operating Rate in Hz | 0.1 Hz (at Ie) for relay output, 10 Hz (no load) for relay output |
| Isolation Voltage | 1780 V |
| Discrete Input Number | 8 |
| Analogue Input Number | 0 |
| Ambient Air Temperature For Operation | -20-40 °C in non-ventilated enclosure conforming to IEC 60068-2-1 and IEC 60068-2-2, -20-55 °C conforming to IEC 60068-2-1 and IEC 60068-2-2 |
| 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 |
| Environmental Characteristic | EMC directive conforming to EN/IEC 61000-6-2, EMC directive conforming to EN/IEC 61000-6-3, EMC directive conforming to EN/IEC 61000-6-4, EMC directive conforming to EN/IEC 61131-2 zone B, low voltage directive conforming to EN/IEC 61131-2 |
| Input Impedance | 4.6 kOhm for discrete input |
| Electrical Durability | AC-12: 500000 cycles at 230 V, 1.5 A for relay output conforming to EN/IEC 60947-5-1, AC-15: 500000 cycles at 230 V, 0.9 A for relay output conforming to EN/IEC 60947-5-1, DC-12: 500000 cycles at 24 V, 1.5 A for relay output conforming to EN/IEC 60947-5-1, DC-13: 500000 cycles at 24 V, 0.6 A for relay output conforming to EN/IEC 60947-5-1 |
| Weight | 0.25 kg |
