ERD3425A - ERD Series

Series: ERD
Availability: Obsolete

Obsolete
Questions? Contact Littelfuse Support
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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 ERD3425A is a combination of digital electronics and a reliable electromechanical relay. DPDT relay output for relay logic circuits, and isolation of input to output voltages. Cost effective for OEM applications, such as duty cycling, drying, washing, signaling, and flashing.


Operation (Recycling - ON Time First)
Upon application of input voltage, the output relay energizes and the T1 ON time begins. At the end of the ON time, the output de-energizes and the T2 OFF time begins. At the end of the OFF time, the output relay energizes and the cycle repeats as long as input voltage is applied.
Reset: Removing input voltage resets the output and time delays, and returns the sequence to the first delay.


Operation (Recycling - OFF Time First)
Upon application of input voltage, the T2 OFF time begins. At the end of the OFF time, the T1 ON time begins and the load energizes. At the end of the ON time the load de-energizes, and the cycle repeats until input voltage is removed.
Reset: Removing input voltage resets the output and the sequence to the OFF time.

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) 120 V ac
Input Tolerance (%) -20% - 10%
Input AC Line Frequency (Hz) 50/60
Output Type Isolated relay contacts
Output Form DPDT
Output Load Rating (VA) 10 A resistive @ 120/240 V ac and 28 V dc; 1/3 hp @ 120/240 V ac
Time Delay Type Digital
Time Delay Range 0.3 - 30 s adjustable
Time Delay Tolerance (%) ≤±10%
Reset Time (ms) ≤150
Adjustment Type Onboard knob
Repeat Accuracy (%) ±0.5%
Setpoint vs Ambient Temperature and Operating Voltage (%) ≤±2%
Insulation Resistance ≥100
Life Electrical: 1 x 10⁶; Mechanical: 1 x 10⁷
Termination Type 0.25 in. (6.35 mm) male quick connect terminals
Mounting Method Surface mount with 1 #6 (M3.5 x 0.6) screw
Operating Temperature -40° to 65°C (-40° to 149°F)
Storage Temperature (F/C) -40° to 85°C (-40° to 185°F)
Dimensions 3.5 H x 2.5 W in. (88.9 x 63.5 mm)
Weight (lbs/g) 0 Kg
Dimensions 3.5 H x 2.5 W in. (88.9 x 63.5 mm)

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