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Schneider Eletric RE8RA21FUTQ Picture

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Zelio Time - RE8RA21FUTQ

Legacy Product

Schneider Eletric RE8RA21FUTQ Picture
View all Zelio Time
Zelio Time - RE8RA21FUTQ
Legacy Product

industrial timing relay - 3..300 s - type C - 110..240 V AC - 1 C/O

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  • Price
    95.00 USD
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  • Main
    range of product
    Zelio Time
    product or component type
    Optimum industrial timing relay
    component name
    time delay type
    time delay range
    3...300 s
    sale per indivisible quantity
    discrete output type
    contacts material
    90/10 silver nickel contacts
    width pitch dimension
    0.89 in (22.5 mm)
    [Us] rated supply voltage
    110...240 V ACat 50/60 Hz
    voltage range
    0.9...1.1 Us
    connections - terminals
    Screw terminals 2 x 1.5 mm², flexible cable with cable end
    Screw terminals 2 x 2.5 mm², flexible cable without cable end
    tightening torque
    5.31...9.73 (0.6...1.1 N.m)
    setting accuracy of time delay
    +/- 20 % of full scale
    repeat accuracy
    < 1 %
    voltage drift
    < 2.5 %/V
    temperature drift
    < 0.2 %/°C
    minimum pulse duration
    26 ms
    reset time
    50 ms
    maximum switching voltage
    250 V
    mechanical durability
    20000000 cycles
    [Ith] conventional free air thermal current
    8 A
    [Ie] rated operational current
    <= 2 A at 24 V, DC-13 158 °F (70 °C) conforming to IEC 60947-5-1/1991
    <= 2 A at 24 V, DC-13 158 °F (70 °C) conforming to VDE 0660
    <= 3 A at 24 V, AC-15 158 °F (70 °C) conforming to IEC 60947-5-1/1991
    <= 3 A at 24 V, AC-15 158 °F (70 °C) conforming to VDE 0660
    <= 0.1 A at 250 V, DC-13 158 °F (70 °C) conforming to IEC 60947-5-1/1991
    <= 0.1 A at 250 V, DC-13 158 °F (70 °C) conforming to VDE 0660
    <= 0.2 A at 115 V, DC-13 158 °F (70 °C) conforming to IEC 60947-5-1/1991
    <= 0.2 A at 115 V, DC-13 158 °F (70 °C) conforming to VDE 0660
    minimum switching capacity
    10 mAat 12 V
    input voltage
    110...240 V (Y1)
    maximum switching current
    10 mA (Y1)
    input compatibility
    2-wire sensors DC with leakage current < 1 mA <= 50 m (Y1)
    overvoltage category
    III conforming to IEC 60664-1
    [Ui] rated insulation voltage
    250 V conforming to IEC
    300 V conforming to CSA
    supply disconnection value
    > 0.1 Uc
    operating position
    Any position without derating factor
    surge withstand
    2 kV conforming to IEC 61000-4-5 level 3
    power consumption in VA
    1.8 VAat 110 V
    8.5 VAat 240 V
    terminal description
    3.07 in (78 mm)
    0.89 in (22.5 mm)
    3.15 in (80 mm)
    product weight
    0.24 lb(US) (0.11 kg)
    immunity to microbreaks
    3 ms
    EN/IEC 61812-1
    product certifications
    ambient air temperature for storage
    -40...185 °F (-40...85 °C)
    ambient air temperature for operation
    -4...140 °F (-20...60 °C)
    relative humidity
    15...85 % 3K3 conforming to IEC 60721-3-3
    vibration resistance
    0.35 mm 10...55 Hz conforming to IEC 60068-2-6
    IP degree of protection
    IP20 (terminals)
    IP50 (casing)
    pollution degree
    3 conforming to IEC 60664-1
    dielectric test voltage
    2.5 kV
    non-dissipating shock wave
    4.8 kV
    resistance to electromagnetic fields
    9.14 V/yd (10 V/m) conforming to IEC 61000-4-3 level 3
    resistance to fast transients
    2 kV conforming to IEC 61000-4-4 level 3
    disturbance radiated/conducted
    CISPR 11 group 1 - class A
    CISPR 22 - class A
    Ordering and shipping details
    Discount Schedule
    Nbr. of units in pkg.
    Package weight(Lbs)
    Country of origin
    Contractual warranty
    Warranty period
    18 months
  • Technical FAQs

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  • Dimensions Drawings

    Width 22.5 mm
    Rail Mounting

    Screw Fixing

  • Connections and Schema

    Internal Wiring Diagram

    Recommended Application Wiring Diagram

    Control of Several Relays

    Control of several relays with a single external control contact

    The external control contact C may be an electronic control device, for example a true-wire sensor. In this case A1-A2= 24 Vdc and the control device can only control-up to a maximum of 4 relays.

    Connection of a 2-Wire Sensor

    Leakage current (open state) if < 1 mA.

  • Performance Curves

    Performance Curves
    A.C. Load Curve 1

    Electrical durability of contacts on resistive loading millions of operating cycles

    Current broken in A
    Millions of operating cycles

    A.C. Load Curve 2

    Reduction factor k for inductive loads (applies to values taken from durability curve 1).

    Power factor on breaking (cos ϕ)
    Reduction factor k

    Example: An LC1-F185 contactor supplied with 115 V/50 Hz for a consumption of 55 VA or a current consumption equal to 0.1 A and cos ϕ = 0.3. For 0.1 A, curve 1 indicates a durability of approximately 1.5 million operating cycles. As the load is inductive, it is necessary to apply a reduction coefficient k to this number of cycles as indicated by curve 2. For cos ϕ = 0.3: k = 0.6 The electrical durability therefore becomes:1.5 106 operating cycles x 0.6 = 900 000 operating cycles.

    D. C. Load Limit Curve

    Current in A
    Voltage in V
    L/R = 20 ms
    L/R with load protection diode
    Resistive load

  • Technical Description

    Function C : Off-Delay Relay with Control Signal

    After power-up and closing of the control contact C, the output R closes. When control contact C re-opens, timing T starts. At the end of the timing period, the output(s) R revert(s) to its/their initial state. The second output can be either timed or instantaneous.

    Function: 1 Output

    Function: 2 Outputs

    2 timed outputs (R1/R2) or 1 timed output (R1) and 1 instantaneous output (R2 inst.)


    Relay de-energised

    Relay energised

    Output open

    Output closed


    Control contact




    Relay or solid state output


    2 timed outputs

    R2 inst.

    The second output is instantaneous if the right position is selected


    Timing period

    Ta -

    Adjustable On-delay

    Tr -

    Adjustable Off-delay