TSD7412S
Littelfuse Relays, TSD7 Series

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TSD7412S Littelfuse Relays, TSD7 Series, Interval/Del on Break Relay, 120VAC,

MFG Item Number
TSD7412S
Littelfuse
main product photo

TSD7412S Littelfuse Relays, TSD7 Series, Interval/Del on Break Relay, 120VAC,

MFG Item Number
TSD7412S
Littelfuse
Series
TSD7
More specs
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Description

Relays, TSD7 Series
Item #
TSD7412S
Interval/Del on Break Relay, 120VAC,

TSD7 Series Information

  • Two Terminal Series Connection to Load
  • Fixed or Adjustable 1s‑1000m in 5 Ranges
  • Digital Integrated Circuitry
  • ±0.5% Repeat Accuracy
The TSD7 utilizes only two terminals connected in series with the load. Interval timing mode period is achieved by using a small portion of the AC sine wave allowing sufficient voltage for circuit operation. It can be used as an interval timer to control or pulse shape the operation of contactors, solenoids, relays, and lamp loads. The TSD7 can be wired to delay on the break of a switch for energy saving fan delays.

Operation (Interval): Upon application of input voltage, the output energizes and the time delay begins. The output remains energized throughout the time delay. At the end of the time delay, the output de‑energizes and remains de‑energized until power is removed. Reset: Removing input voltage resets the time delay and the output.

Operation (Delay‑on‑Break): Upon closure of SW1, the load is energized and the timer is reset (zero volts across its input terminals). Opening SW1 re‑applies input voltage to the timer, the load remains energized and the time delay begins. At the end of the time delay, the output de‑energizes. If SW1 is open when power is applied, the load will energize for the time delay then de‑energize. Reset: Reclosing SW1 resets the timer.

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Specifications

Specifications
Manufacturer Part Number TSD7412S
Manufacturer Littelfuse
Product Series TSD7
Family Series Littelfuse Relays, TSD7 Series
Description Interval/Del on Break Relay, 120VAC, 2 Second, Fixed Time
Operation Interval, Off Delay
Contacts 1NO
Mounting Surface
Time Range Adjustment Fixed
Timing Range 2 s
Max Time 2 s
Time Tolerance 10 %
Coil Voltage 120 VAC
Nominal Coil Voltage 120 VAC
Contact Rating 1 A
Termination 0.250 in Flat Blade
Approvals CE, CSA, UL
Net Weight 0.1375 lbs
Gross Weight 0.14 lbs
Alternatives
TSD7421
TSD7421
Littelfuse Relays, TSD7 Series