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Littelfuse delivers vital products to address customer needs for protecting and safely controlling electrical power. Our single-function & control relays product portfolio includes 16 series of interval time-delay relays with excellent repeat accuracy. These relays apply power to circuits for set periods of time. Available features include microcontroller-based circuitry, solid-state components, encapsulation, and LED indicators.
- Ac input voltages from 24 V ac to 240 V ac
- Dc input voltages from 12 V dc to 120 V dc
- Fixed or selectable time delays from 600 ms to 10 hr
- Repeat accuracy as high as ±0.1 % or 20 ms, whichever is greater
- Operate at temperatures up to +85 °C
- Reset times ≤ 400 ms
- Initiate times ≤ 20 ms
- Time delays vs. temp. & voltage ≤ ±2 %
- Ac line frequency/Dc ripple of 50/60 Hz
- UL Recognized
- Available with DPDT output circuitry, SPDT output circuitry, or normally open contacts
- Available with digital or microcontroller-based circuitry
- Compact, low-weight designs
Interval Parts
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Showing 1 to 12 of 61 Total Results
| 120 V ac | DPDT | 0.6 - 60 s adjustable | |||
| 230 V ac | DPDT | 1 - 100 m adjustable | |||
| 12 V dc | Non-isolated SPDT | 7 s fixed | |||
| 120 V ac | Non-isolated SPDT | 1 - 100 s onboard knob | |||
| 120 V ac | Non-isolated SPDT | 10 - 1000 s onboard adjustable | |||
| 24 or 240 V ac / 24 or 110 V dc | SPDT | 0.1 - 10 h onboard adjustable | |||
| 12or 48 V dc | SPDT | 1 - 100 s fixed | |||
| 12 V dc | SPDT | 0.1 - 10 s onboard adjustable | |||
| 12 V dc | SPDT | 1 - 100 s onboard adjustable | |||
| 12 V dc | SPDT | 10 - 1000 s onboard adjustable | |||
| 24 V ac/dc | SPDT | 10 s fixed | |||
Interval Applications
- Compressors
- Heater elements
- Motor drives
- Motor starters
- Pumps
