TD-8 Series


Lead Time: 7 Days

$142.56 (USD) / EACH

Description Of Function

Upon application of input voltage, the time delay relay is ready to accept a trigger. When the trigger is applied, the time delay (t1) begins. At the end of the time delay (t1), the output is energized and remains in that condition for the time delay (t2). At the end of the time delay (t2), the output is de-energized & the relay is ready to accept another trigger. During both time delay (t1) & time delay (t2), the trigger is ignored.

Function Chart

Product Overview

  • Available as either a multifunction version with 16 functions built-in or as individual function versions
  • DIP-Switches for accurate digital set of time delay (multi- & single-function) & selection of function (for multi-function only)
  • Programmable delay of 50ms - 10,230 hours (multi-function) or 100ms - 1,023 hours (single-function)
  • LED indicates relay status
  • Pilot Duty Rating
Enclosure Style

Plug-in case utilizing industry-standard 8 & 11 pin octal sockets

Configuration / Contact Rating
  • DPDT (SPDT version also available on TD-881 multi-function Series)
  • 10A @ 240V AC/30V DC, 1/2HP @ 120/240V AC (N.O.),1/3HP @ 120/240V AC (N.C.), B300 & R300
Application Information
  • Voltage Tolerance: AC Operation: +10/-15% of nominal at 50/60 Hz.; DC Operation: +10/-15% of nominal.
  • Load (Burden): 2 VA
  • Setting Accuracy: +1% of set time or +50ms, whichever is greater.
  • Repeat Accuracy (Constant Voltage & Temperature): +0.1% of set time or +0.02 seconds, whichever is greater.
  • Reset Time: 0.1 Seconds
  • Output Contacts: 10A @ 240V AC/30V DC, 1/2HP @ 120/240V AC (N.O.),1/3HP @ 120/240V AC (N.C.), B300 & R300
  • Life: Mechanical: 10,000,000 operations; Full Load: 100,000 operations
  • Temperature: -28° to 65° C (-18° to 149° F)


The TD-8 series of time delay relays offer an easy and accurate way to select any time delay between 50ms & 10,230 hours (100ms & 1,023 hours on single-function units). Programming is accomplished through the use of 10-position DIP-switches. This method provides a greater setting accuracy than is found on other units with an analog potentiometer. An LED indicates relay status.

The TD-8 series comes in two versions: a multi-function product with 16 functions built-in or a single function product.

TD-881 Series DIP Switch Programming

You May Be Interested in These Other Products

  • Function: Overcurrent AC/DC
  • Control Voltage: 120V AC
  • Output: 10A SPDT
  • Trip Delay: None
  • Enclosure Style: Plug-in
  • Current Range: DC: 5 -100mA, 0.05 - 1A, and 0.5 - 10A ; AC: 3.5 - 70.7mA, 0.035 - 0.707A, and 0.35 - 7.707A
  • Sensing Delay On Power: 0.1 - 10 seconds
  • Communication Platform: Modbus TCP
  • Monitored Voltage: 190-600V AC
  • Output: 5A SPDT
  • Protection: Phase Loss, Phase Reversal, Voltage Unbalance, Undervoltage & Overvoltage
  • Standard Modifications: Local Adjustment (PC1MDUL);
  • Enclosure Style: DIN-Rail
  • Control Voltage: 120V AC
  • Output: 4 Form C Contacts
  • Options: Standard (LED and Push-to-Test Included)
  • Terminal Configuration: Blade