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KRPSD21M
PROGRAMMABLE TIMER | Series: KRPS DOM Timers
The KRPS Series is a factory programmed time delay relay available with 1 of 15 functions and measures only 2 inches square. The KRPS offers a wide range of fixed, onboard, or externally adjustable time delays. The output relay contacts offer a full 10A rating with complete isolation. Its microcontroller timing circuit provides excellent repeat accuracy and stability. Encapsulation protects against shock, vibration, and humidity. The KRPS Series is a cost effective approach for OEM applications that require small size, isolation, accuracy, and long life. Special time ranges and functions are available.
Operation (Delay on Make)
Upon application of the input voltage, the dime delay begins. The output relay is de-energized before and during the time delay. At the end of the time delay, the put energizes and remains energized until input voltage is removed.
Reset: Removing input voltage resets the time delay and output.
| Property | Value |
|---|---|
Input Voltage (V) | 12 or 48 V dc |
Output Form | SPDT |
Time Delay Range (s) | 0.1 - 10 s onboard adjustable |
Dimensions | 2 H x 2 W in. (50.8 x 50.8 mm) |
Circuitry | Encapsulated |
Humidity | 95% relative : non-condensing |
Initiate Time | ≤40; 750 operations per minute |
Input DC Ripple | ≤10% |
Input Tolerance (%) | -15% - 20% |
Insulation Resistance (Ω) | ≥100 |
Isolation Voltage | ≥1500 Vrms input to output |
Life | Electrical: 1 x 10⁵; Mechanical: 1 x 10⁷ |
Mounting Method | Surface mount with 1 #10 (M5 x 0.8) screw |
Operating Temperature Max (°C) | 60 |
Operating Temperature Maximum Fahrenheit | 140 |
Operating Temperature Min (°C) | -40 |
Operating Temperature Minimum Fahrenheit | -40 |
Output Load Rating (VA) | 10 A resistive @ 125 V ac; 5 A resistive @ 230 V ac and 28 V dc; 1/4 hp @ 125 V ac |
Output Type | Isolated relay contacts |
Polarity | DC units are reverse polarity protected |
Power Consumption | ≤2 W |
Repeat Accuracy (%) | ±0.5% or 20 ms whichever is greater |
Reset Time (ms) | ≤150 |
Setpoint vs. Ambient Temperature and Operating Voltage | ≤±2% |
Storage Temperature Maximum Celsius | 80 |
Storage Temperature Maximum Fahrenheit | 176 |
Storage Temperature Minimum Celsius | -40 |
Storage Temperature Minimum Fahrenheit | -40 |
Switching Voltage Maximum (V) | 250 |
Termination Type | 0.25 in. (6.35 mm) male quick connect terminals |
Time Delay Tolerance (%) | ±2% |
Time Delay Type | Microcontroller |
Undervoltage Trip Voltage (%) | ±2% |
KRPSD21M Resources
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| Part Number | Part Description | RoHS | Pb-Free | RoHS (2015/863/EU) Certificate | REACH (SVHCs) Declaration | REACH (SVHCs) | Halogen Free | IPC-Material Declaration | |
|---|---|---|---|---|---|---|---|---|---|
| KRPSD21M | PROGRAMMABLE TIMER |  6/4/2021 |  6/4/2021 |  CoC_RoHS9_KRPSD21M | REACH211_Declaration_(Contain)_KRPSD21M | Contains | Yes6/4/2021 | View More |
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