Littelfuse
KRD9120B
1 / 1
Description
Operation (Retriggerable Single Shot) Function Type A (Output Initially De-energized): Input voltage must be applied prior to and during timing. When the initiate switch is closed, (momentary or maintained) the output energizes and the time delay starts. On completion of the delay, the output de-energizes. The unit will time out if S1 remains in the open or closed position for the full time delay. Re-closing the initiate switch resets the time delay and restarts timing; the output remains energized. The output will not energize if the initiate switch is closed when input voltage is applied. Function Type B (Output Initially Energized): Upon application of input voltage, the output energizes and the time delay starts. At the end of the time delay, the load de-energizes. The unit will time out if S1 remains in the open or closed position for the full time delay. Closing (re-closing) the initiate switch resets the time delay and restarts timing; the output remains energized. Reset: The time delay and the output are reset when input voltage is removed.- Part Number
- KRD9120B
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Specifications
- Input Voltage (V)
- 12VDC
- Input Tolerance (%)
- -15% - 20%
- Input DC Ripple (%)
- ≤10%
- Output Type
- Isolated relay contacts
- Output Form
- SPDT
- Output Load Rating (VA)
- 10A resistive @ 125VAC; 5A resistive @ 230VAC and 28VDC; 1/4hp @ 125VAC
- Maximum Output Voltage (V)
- 250VAC
- Time Delay Type
- Microcontroller based with watchdog circuitry
- Time Delay Range
- 0.1 - 10s onboard adjustable
- Time Delay Tolerance (%)
- ≤±5%
- Reset Time (ms)
- ≤150ms
- Initiate Time (ms)
- ≤40ms; ≤750 operations per minute
- Repeat Accuracy (%)
- ±0.5% or 20ms whichever is greater
- Setpoint vs Ambient Temperature and Operating Voltage (%)
- ≤ ±5%
- Insulation Resistance
- ≥100 MΩ
- Isolation Voltage (V)
- ≥1500V RMS input to output
- Circuitry
- Encapsulated
- Polarity
- DC units are reverse polarity protected
- Life
- Mechanical - 1 x 107; Electrical - 1 x 105
- Power Consumption
- ≤2W
- Termination Type
- 0.25 in. (6.35mm) male quick connect terminals
- Mounting Method
- Surface mount with one #10 (M5 x 0.8) screw
- Operating Temperature
- -40° to 60°C (-40°F to 140°F)
- Storage Temperature (F/C)
- -40° to 85°C (-40°F to 185°F)
- Humidity
- 95% relative non-condensing
- Dimensions
- 2.00 x 2.00 x 1.21 in. (50.8 x 50.8 x 30.7mm)
- Weight (lbs/g)
- ≅2.6oz (74g)
- Sample capable
- No
Documents
Data Sheet
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