TSS421
Littelfuse Relays, TSS Series

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TSS421 Littelfuse Relays, TSS Series, Single Shot Timer, 120VAC, 0.05-3.0
MFG Item Number
TSS421
Littelfuse
main product photo

Product images are for illustration purposes only. Please review specifications and documentation for exact product details.

TSS421 Littelfuse Relays, TSS Series, Single Shot Timer, 120VAC, 0.05-3.0

MFG Item Number
TSS421
Littelfuse
Series
TSS
More specs
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Description

Relays, TSS Series
Item #
TSS421
Single Shot Timer, 120VAC, 0.05-3.0

TSS Series Information

  • Expands or Decreases Switch Closures
  • Momentary or Maintained Initiate Switch
  • Totally Solid State
  • Encapsulated to Protect Against Shock & Vibration
  • Fixed or Adjustable Delays from 0.05‑600s in 4 Ranges
The TSS is a totally solid‑state timing module. Its 1A rated, solid‑state output provides an excellent method of time control for exposures, dispensing, or for increasing or decreasing a switch closure. Time delays from 0.05 to 600 seconds, in 4 ranges, cover 90% of all OEM applications. Factory calibration of fixed delays is ±5% and the repeat accuracy is ±2%. The TSS can be surface mounted with a single screw, or snapped on a 35mm DIN rail using the P1023‑20 accessory adaptor.

Operation (Single Shot): Voltage must be applied before and during timing. Upon momentary or maintained closure of the initiate switch, the output energizes for a measured interval of time. At the end of the delay, the output de‑energizes. Opening or reclosing the initiate switch during timing has no affect on the time delay. The output will energize if the initiate switch is closed when input voltage is applied. Reset: Reset occurs when the time delay is complete and the initiate switch opens. Loss of input voltage resets the time delay and output.

  • ±2% Repeat Accuracy
  • ±5% Factory Calibration

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Specifications

Specifications
Manufacturer Part Number TSS421
Manufacturer Littelfuse
Product Series TSS
Family Series Littelfuse Relays, TSS Series
Description Single Shot Timer, 120VAC, 0.05-3.0 Sec, Solid State, Versa-Timer, Ext Adjustable, 1/4in. Fast-On Termft.s
Operation One-Shot
Contacts 1NO
Mounting Surface
Time Range Adjustment Remote
Timing Range 0.05-3 s
Max Time 3 s
Time Tolerance 5 %
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 0.11 lbs
Gross Weight 0.11 lbs