Schneider Electric USA Website

Welcome to our website.

To view product availability in a specific country, select from the country list below. For Investor Relations, please visit our global site.

Choose another country or region

Schneider Eletric SR2B121BD Picture

Range: Zelio Logic

Compact smart relays

SR2B121BD

Schneider Eletric SR2B121BD Picture
Range: Zelio Logic

Compact smart relays

SR2B121BD

compact smart relay Zelio Logic - 12 I O - 24 V DC - clock - display

Show more characteristics >
  • Product availability
    Stock - Normally stocked in distribution facility
  • Price
    282.00 USD
Add to My Products Remove from My Products

  • Main
    range of product
    Zelio Logic
    product or component type
    Compact smart relay
    Complementary
    local display
    With
    number or control scheme lines
    0...500 with FBD programming
    0...240 with ladder programming
    cycle time
    6...90 ms
    backup time
    10 yearsat 77 °F (25 °C)
    clock drift
    6 s/monthat 77 °F (25 °C)
    12 min/yearat 32...131 °F (0...55 °C)
    checks
    Program memory on each power up
    [Us] rated supply voltage
    24 V DC
    supply voltage limits
    19.2...30 V
    supply current
    100 mA (without extension)
    power dissipation in W
    3 W without extension
    reverse polarity protection
    With
    discrete input number
    8 conforming to EN/IEC 61131-2 type 1
    discrete input type
    Resistive
    discrete input voltage
    24 V DC
    discrete input current
    4 mA
    counting frequency
    1 kHzfor discrete input
    voltage state 1 guaranteed
    >= 15 Vfor I1...IA and IH...IR discrete input circuit
    >= 15 Vfor IB...IG used as discrete input circuit
    voltage state 0 guaranteed
    <= 5 Vfor I1...IA and IH...IR discrete input circuit
    <= 5 Vfor IB...IG used as discrete input circuit
    current state 1 guaranteed
    >= 1.2 mA for IB...IG used as discrete input circuit
    >= 2.2 mA for I1...IA and IH...IR discrete input circuit
    current state 0 guaranteed
    <= 0.5 mA for IB...IG used as discrete input circuit
    <= 0.75 mA for I1...IA and IH...IR discrete input circuit
    input compatibility
    3-wire proximity sensors PNP (discrete input)
    analogue input number
    4
    analogue input type
    Common mode
    analogue input range
    0...10 V
    0...24 V
    maximum permissible voltage
    30 V (analogue input circuit)
    analogue input resolution
    8 bits
    LSB value
    39 mV (analogue input circuit)
    conversion time
    Smart relay cycle time analogue input circuit
    conversion error
    +/- 5 %at 77 °F (25 °C)for analogue input circuit
    +/- 6.2 %at 131 °F (55 °C)for analogue input circuit
    repeat accuracy
    +/- 2 %at 131 °F (55 °C)for analogue input circuit
    operating distance
    10 m between stations, with screened cable (sensor not isolated) analogue input circuit
    input impedance
    12 kOhm (IB...IG used as analogue input circuit)
    12 kOhm (IB...IG used as discrete input circuit)
    7.4 kOhm (I1...IA and IH...IR discrete input circuit)
    number of outputs
    4 relay output(s)
    output voltage limits
    24...250 V AC (relay output)
    5...30 V DC (relay output)
    contacts type and composition
    NO relay output
    output thermal current
    8 A for all 4 outputs (relay output)
    electrical durability
    500000 cycles AC-12at 230 V, 1.5 Afor relay output conforming to EN/IEC 60947-5-1
    500000 cycles AC-15at 230 V, 0.9 Afor relay output conforming to EN/IEC 60947-5-1
    500000 cycles DC-12at 24 V, 1.5 Afor relay output conforming to EN/IEC 60947-5-1
    500000 cycles DC-13at 24 V, 0.6 Afor relay output conforming to EN/IEC 60947-5-1
    switching capacity in mA
    >= 10 mAat 12 V (relay output)
    operating rate in Hz
    0.1 Hz (at Ie)for relay output
    10 Hz (no load)for relay output
    mechanical durability
    10000000 cycles (relay output)
    [Uimp] rated impulse withstand voltage
    4 kV conforming to EN/IEC 60947-1 and EN/IEC 60664-1
    clock
    With
    response time
    10 ms (from state 0 to state 1) relay output
    5 ms (from state 1 to state 0) relay output
    connections - terminals
    Screw terminals, clamping capacity: 1 x 0.2...1 x 2.5 mm² AWG 25...AWG 14 semi-solid
    Screw terminals, clamping capacity: 1 x 0.2...1 x 2.5 mm² AWG 25...AWG 14 solid
    Screw terminals, clamping capacity: 1 x 0.25...1 x 2.5 mm² AWG 24...AWG 14 flexible with cable end
    Screw terminals, clamping capacity: 2 x 0.2...2 x 1.5 mm² AWG 24...AWG 16 solid
    Screw terminals, clamping capacity: 2 x 0.25...2 x 0.75 mm² AWG 24...AWG 18 flexible with cable end
    tightening torque
    4.42 lbf.in (0.5 N.m)
    overvoltage category
    III conforming to EN/IEC 60664-1
    product weight
    0.55 lb(US) (0.25 kg)
    Environment
    immunity to microbreaks
    <= 1 ms
    product certifications
    CSA
    C-Tick
    GL
    GOST
    UL
    standards
    EN/IEC 60068-2-27 Ea
    EN/IEC 60068-2-6 Fc
    EN/IEC 61000-4-11
    EN/IEC 61000-4-12
    EN/IEC 61000-4-2 level 3
    EN/IEC 61000-4-3
    EN/IEC 61000-4-4 level 3
    EN/IEC 61000-4-5
    EN/IEC 61000-4-6 level 3
    IP degree of protection
    IP20 (terminal block) conforming to IEC 60529
    IP40 (front panel) conforming to IEC 60529
    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
    disturbance radiated/conducted
    Class B conforming to EN 55022-11 group 1
    pollution degree
    2 conforming to EN/IEC 61131-2
    ambient air temperature for operation
    -4...104 °F (-20...40 °C) in non-ventilated enclosure conforming to IEC 60068-2-1 and IEC 60068-2-2
    -4...131 °F (-20...55 °C) conforming to IEC 60068-2-1 and IEC 60068-2-2
    ambient air temperature for storage
    -40...158 °F (-40...70 °C)
    operating altitude
    6561.68 ft (2000 m)
    altitude transport
    <= 10000 ft (3048 m)
    relative humidity
    95 % without condensation or dripping water
    Ordering and shipping details
    Category
    22378 - SR2,3 ZELIO 2 RELAYS
    Discount Schedule
    I
    GTIN
    00785901693864
    Nbr. of units in pkg.
    1
    Package weight(Lbs)
    0.54000000000000004
    Returnability
    Y
    Country of origin
    FR
    Offer Sustainability
    California proposition 65
    WARNING: This product can expose you to chemicals including:
    - - - - - - - Substance 1
    Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm.
    - - - - - - - More information
    For more information go to www.p65warnings.ca.gov
    Contractual warranty
    Warranty period
    18 months
  • Documents and Downloads

    Language
    • English
    • Spanish
    • French
    CAD
    Date
    Size
    Add to My Documents
    Instruction Sheet
    Date
    Size
    Add to My Documents
    Date 7/18/18
    Size 587 KB
  • Technical FAQs

    No results found.
    Unfortunately, related FAQs are unavailable due to temporary technical issues. Please try again later.
  • Dimensions Drawings

    Compact and Modular Smart Relays
    Mounting on 35 mm/1.38 in. DIN Rail


    (1)
    With SR2USB01 or SR2BTC01

    Screw Fixing (Retractable Lugs)


    (1)
    With SR2USB01 or SR2BTC01

    Position of Display



  • Connections and Schema

    Compact and Modular Smart Relays
    Connection of Smart Relays on DC Supply


    (1)
    1 A quick-blow fuse or circuit-breaker.
    (2)
    Fuse or circuit-breaker.
    (3)
    Inductive load.
    (4)
    Q9 and QA: 5 A (max. current in terminal C: 10 A).

    Discrete Input Used for 3-Wire Sensors


    (1)
    1 A quick-blow fuse or circuit-breaker.


  • Performance Curves

    Compact and Modular Smart Relays
    Electrical Durability of Relay Outputs

    (in millions of operating cycles, conforming to IEC/EN 60947-5-1)

    DC-12 (1)


    X:
    Current (A)
    Y:
    Millions of operating cycles
    (1)
    DC-12: control of resistive loads and of solid state loads isolated by opto-coupler, L/R ≤ 1 ms.

    DC-13 (1)


    X:
    Current (A)
    Y:
    Millions of operating cycles
    (1)
    DC-13: switching electromagnets, L/R ≤ 2 x (Ue x Ie) in ms, Ue: rated operational voltage, Ie: rated operational current (with a protection diode on the load, DC-12 curves must be used with a coefficient of 0.9 applied to the number in millions of operating cycles).