Littelfuse KSD3310.1SA, KSD3 Series, 24VDC, Repeat Cycle Time Delay Relay SPST-NO (1 Form A) Fixed, 0.1 Sec Delay Chassis Mount
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The KSD3 Series Digi-Timer is a cost effective approach for ON/OFF recycling applications. The on time is equal to the off time. An adjustment of the RT will change the time delays of both on and off times. This series is designed for general purpose commercial and industrial applications where a small, cost effective, reliable, solid-state timer is required. The factory calibration for fixed time delays is within 5% of the target time delay. The repeat accuracy, under stable conditions, is 0.5% of the selected time delay. This series is designed for popular AC and DC voltages. Time delays of 0.1 seconds to 1000 minutes are available in 6 ranges. The output is rated 1A steady and 10A inrush. The modules are totally solid state and encapsulated to protect the electronic circuitry.
Operation (Recycling Flasher - ON Time First)
Upon application of input voltage, the output energizes and the T1, ON time begins. At the end of the ON time, the output de-energizes and the T2 OFF time begins. At the end of the OFF time, the output energizes and the cycle repeats as long as input voltage is applied.
Reset: : Removing input voltage resets the output and time delays, and returns the sequence to the ON time
Operation (Recycling Flasher - OFF Time First)
Upon application of input voltage, the T2 OFF time begins. At the end of the OFF time, the T1 ON time begins and the load energizes. At the end of the ON time the load de-energizes, and the cycle repeats until input voltage is removed.
Reset: Removing input voltage resets the output and time delays and the sequence to the OFF time.
Specifications
Time Delay | |
Range | 0.1s - 1000m in 6 adjustable ranges or fixed |
Repeat Accuracy | ±0.5% or 20ms, whichever is greater |
Tolerance (Factory Calibration) | ≤ ± 5% |
Reset Time | ≤ 150ms |
Time Delay vs Temp. & Voltage | ≤ ±10% |
Input | |
Voltage | 24 or 120VAC; 12 or 24VDC |
Tolerance | ±20% |
AC Line Frequency | 50/60 Hz |
Power Consumption | AC ≤ 2VA; DC ≤ 1W |
Output | |
Type | Solid state |
Maximum Load Current | 1A steady state, 10A inrush at 60°C |
OFF State Leakage Current | AC ≅ 5mA @ 230VAC; DC ≅ 1mA |
Voltage Drop | AC ≅ 2.5V @ 1A; DC ≅ 1V @ 1A |
DC Operation | Negative switching only |
Protection | |
Circuitry | Encapsulated |
Dielectric Breakdown | ≥ 2000V RMS terminals to mounting surface |
Insulation Resistance | ≥ 100 MΩ |
Polarity | DC units are reverse polarity protected |
Mechanical | |
Mounting | Surface mount with one #10 (M5 x 0.8) screw |
Dimensions |
H 50.8 mm (2”) W 50.8 mm (2”) D 30.7 mm (1.21”) |
Termination | 0.25 in. (6.35 mm) male quick connect terminals |
Environmental | |
Operating/Storage Temperature | -40° to 60°C / -40° to 85°C |
Humidity | 95% relative, non-condensing |
Weight | ≅ 2.4 oz (68 g) |