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 Time Delay Relays, R28 Series

R28 Series
DPDT, 10 Amp, AC & DC Adjustable Delay On Operate Time Delay Relays

 Features
  • ±0.1% Repeatability
  • 8-Pin octal base
  • Knob with calibrated scale
  • 3-timing ranges
  • Impact proof dust cover
  • IC hybrid circuitry for timing
  • DELAY ON OPERATE - The delay period begins when input voltage is applied. At the end of the delay period, the relay will operate and will not release until input voltage is removed. Reset occurs when input voltage is reapplied.

    Electrical Characteristics

    Contact
    Contact Rating: 10 Amps 120 VAC, 30 VDC-8 Amp, 1/2 HP @ 240 VAC, 1/3 HP @ 120 VAC
    Life: 500,000 operations @ 120 VAC, 10A resistive
    1,000,000 operations @ 120 VAC, 5A resistive
    2,000,000 operations @ 120 VAC, 2A resistive
    Mechanical Life: 50,000,000 operations

    Input
    Nominal Input Voltages: See Chart
    Steady State Input Current: See Chart

    Timing
    Timing Adjustment Modes Available:
         0.1 to 10 sec (K-suffix)      1.0 to 180 sec (L-suffix)      2.0 to 300 sec (M-suffix)

    Repeat Accuracy
    ±0.1% - constant voltage & temperature
    Percent Timing Range over Temperature & Voltage Range: ±10%
    Timing Tolerance at High End of Range: -0, +40%

    Timing Tolerance at Low End of Range: +0, -40%

    Reset Time: 100mS Max

    Protection
    Transient: UL508 surge test 5000V for 50mS
    Dielectric Breakdown:
         Coil To Contact: 1500 VAC
         Across Open Contact: 1000 VAC
         Noise Immunity: NEMA ICS 2-230 2500 VAC

    Environmental Characteristics
    Operating: -20°C to +55°C
    Storage: -55°C to +85°C

    Weight
    Std: 4 ozs. (115 grams) - approx

    Back to Top

    Dimensional Drawings

    D16                                              
    Contact Arrangment
    DPDT, 2 Form "C"
    Timing


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    Part Numbers
    NTE Type No. Nom.
    Volt.
    Contact
    Arr.
    Input
    Cur.
    Nom.
    Max.
    Contact
    Cur, @
    28VDC
    or
    120VAC
    Diag.
    No.
    AC OPERATED
    R28-11A10-120K 120VAC DPDT 20mA 10A D16
    R28-11A10-120L 120VAC DPDT 20mA 10A D16
    R28-11A10-120M 120VAC DPDT 20mA 10A D16
    DC OPERATED
    R28-11D10-24K 24VDC DPDT 40mA 10A D16
    R28-11D10-24L 24VDC DPDT 40mA 10A D16

    ACCESSORIES
    Mounting Styles Description NTE Type No.
    Surface Mount 8-Pin Octal R95-101
    Panel Mount 8-Pin Octal R95-118
    DIN Rail Mount 8-Pin Octal R95-113
    8-Pin Octal R95-181

    Back to Top


    **Specifications subject to changes**
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    Electrical Characteristics

    Dimensional Drawings

    Part Numbering



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