KRPDD2121MB - KRPD DOM DOB Timers Series

Series: KRPD DOM DOB Timers
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Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

The KRPD Series is a factory programmed time delay relay available with 1 of 12 standard dual functions. The time delays can be factory fixed, onboard or externally adjustable or a combination of fixed and adjustable. The SPDT 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 KRPD Series is a cost effective approach for OEM applications that require small size, isolation, accuracy and long life.
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Product Literature

For Technical Questions

Call +1 800-832-3873 or email us at relays@littelfuse.com 

Property (Mouseover for details) Value
Input Voltage (V) 12 or 48 V dc
Input Tolerance (%) -15% - 20%
Input DC Ripple (%) ≤10%
Output Type Isolated relay contacts
Output Form SPDT
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
Maximum Output Voltage (V) 250
Time Delay Type Microcontroller
Time Delay Range T1: 0.1 - 10 s onboard adjustable; T2: 0.1 - 10 s onboard adjustable
Time Delay Tolerance (%) ≤±2%
Recycle Time (ms) ≤150
Initiate Time (ms) ≤40; 750 operations per minute
Repeat Accuracy (%) ±0.5% or 20 ms whichever is greater
Setpoint vs Ambient Temperature and Operating Voltage (%) ≤±2%
Insulation Resistance ≥100
Circuitry Encapsulated
Polarity DC units are reverse polarity protected
Life Electrical: 1 x 10⁵; Mechanical: 1 x 10⁷
Power Consumption ≤2 W
Termination Type 0.25 in. (6.35 mm) male quick connect terminals
Mounting Method Surface mount with 1 #10 (M5 x 0.8) screw
Operating Temperature -40° to 60°C (-40° to 140°F)
Storage Temperature (F/C) -40° to 85°C (-40° to 185°F)
Humidity 95% relative : non-condensing
Dimensions 2 H x 2 W in. (50.8 x 50.8 mm)
Weight (lbs/g) 0 Kg
Dimensions 2 H x 2 W in. (50.8 x 50.8 mm)

To request product environmental information, please complete the Product Environmental Information Request Form.