The HRDI117S is an interval timer with a fixed 7-second delay, designed for OEM applications requiring cost-effective timing control. It operates on 12VDC with a tolerance of -15% to 20%, and uses an electromechanical SPDT relay with a 30A contact rating for resistive loads at 125/240VAC. The device is enclosed and encapsulated for protection against shock, vibration, and humidity, with repeat accuracy of ±0.5% or 20ms, whichever is greater. It mounts via a single #10 screw and features 0.25 in. (6.35 mm) male quick connect terminals. Dimensions are 76.7 mm H × 51.3 mm W × 38.1 mm D, with an operating temperature range of -40°C to 60°C and a weight of approximately 3.9 oz (111 g).
The HRDI Series combines an electromechanical relay output with microcontroller timing circuitry. It offers 12 to 230V operation in five ranges and factory fixed, external, or onboard adjustable time delays with a repeat accuracy of ±0.5%. The output contact rating allows for direct operation of heavy loads, such as compressors, pumps, blower motors, heaters, etc. This series is ideal for OEM applications where cost is a factor. Operation (Interval)Upon application of input voltage, the time delay begins. The output relay is energized during the time delay. At the end of the time delay, the output de-energizes and remains de-energized until input voltage is removed.Reset: Removing input voltage resets the time delay and the output.
| Littelfuse, Inc. | |
|---|---|
| Product Category | Electromechanical Relays |
| Product Number | HRDI117S |
| Product Name | Interval Timer |
| Mounting | Surface mount with 1 #10 (M5 x 0.8) screw |
