SR2B121B - Schneider Electric
MPNSR2B121B
Active
COMPACT SMART RELAY, ZELIO LOGIC
$251.00 – $277.08Ref. price · indicative, final on quote
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
How we verify every order →Specifications
| Parameter | Value |
|---|---|
| Protection type | Against inversion of terminals (control instructions not executed) |
| Range of product | Zelio Logic |
| Product or component type | Compact smart relay |
| Isolation voltage | 1780 V |
| Supply voltage limits | 20.4...28.8 V |
| Discrete input voltage | 24 V AC |
| Supply voltage | 24 V AC |
| Voltage state 0 guaranteed | = 2 mA discrete input) |
| Voltage state 1 guaranteed | >= 14 V discrete input |
| [Uimp] rated impulse withstand voltage | 4 kV EN/IEC 60947-1 and EN/IEC 60664-1 |
| Discrete input current | 4.4 mA |
| Maximum supply current | 145 mA without extension) |
All specifications
| Parameter | Value |
|---|---|
| Current state 0 guaranteed | = 10 mA 12 V relay output) |
| Power consumption in | 4 VA without extension |
| Supply frequency | 50/60 Hz |
| Operating rate in | 0.1 Hz at Ie)relay output 10 Hz no load)relay output |
| Discrete input frequency | 57...63 Hz 47...53 Hz |
| IP degree of protection | IP20 IEC 60529 terminal block) IP40 IEC 60529 front panel) |
| 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 |
| 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 |
| Pollution degree | 2 IEC 61131-2 |
| Relative humidity | 95 % without condensation or dripping water |
| Operating altitude | 6561.68 ft (2000 m) |
| Maximum altitude transport | 10000 ft (3048 m) |
| Mechanical durability | 10000000 cycles relay output |
| Standards | IEC 61000-4-3 IEC 61000-4-4 level 3 IEC 61000-4-11 IEC 60068-2-27 Ea IEC 61000-4-5 IEC 61000-4-6 level 3 IEC 61000-4-2 level 3 IEC 60068-2-6 Fc IEC 61000-4-12 |
| Clock | With |
| Checks | Program memory on each power up |
| Category | US1000I22378 |
| Cycle time | 6...90 ms |
| Backup time | 10 years 77 °F (25 °C) |
| Clock drift | 12 min/year 32...131 °F (0...55 °C) 6 s/month 77 °F (25 °C) |
| Local display | With |
| Tightening torque | 4.4 lbf.in (0.5 N.m) |
| Overvoltage category | III conforming to IEC 60664-1 |
| Discrete input number | 8 |
| Immunity to microbreaks | 10 ms repeated 20 times |
| Environmental characteristic | EMC directive conforming to IEC 61000-6-2 EMC directive conforming to IEC 61000-6-3 EMC directive conforming to IEC 61000-6-4 EMC directive conforming to IEC 61131-2 zone B Low voltage directive conforming to IEC 61131-2 |
| Disturbance radiated (conducted) | Class B EN 55022-11 group 1 |
| Number or control scheme lines | 0...240 ladder 0...500 FBD |
| Ambient air temperature for storage | -40...158 °F (-40...70 °C) |
| Ambient air temperature for operation | -4...104 °F (-20...40 °C) in non-ventilated enclosure IEC 60068-2-1 and IEC 60068-2-2 -4...131 °F (-20...55 °C) IEC 60068-2-1 and IEC 60068-2-2 |
MPN
SR2B121B