Littelfuse SC3120A, SC3 Series, Sequencing Control, 120VAC, 1A, 3 Sequential Channel
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The SC3/SC4 Series are solid-state 3 or 4 channel chasers designed for sequential three circuit flashing of incandescent lamp loads. Unlike electromechanical chasers, there are no contacts to arc, wear, and eventually fail.
Operation
Sequential 3 or 4 circuit flashing of incandescent loads with equal time delays for each load. Upon application of input voltage, Load 1 is energized. At the end of the time delay, Load 1 de-energizes and Load 2 energizes. At the end of the time delay, Load 2 de-energizes and Load 3 energizes. This cycle continues until input voltage is removed. The set time delay (rate) is the timing for the whole cycle, for all 3 loads (output contacts).
Reset: Removing input voltage resets the unit and cycle.
Pre-order 6-8 Weeks
| Technical Data | |
| Operation | Sequential 3 circuit flashing of incandescent lamp loads. Fixed rate. For sequential 4 circuit and adjustable rates, please contact the factory |
| Rate | Fixed: 30 operations per minute (±10%) |
| Input | |
| Voltage | 120VAC ±15% |
| AC Line Frequency | 50/60 Hz |
| Output | |
| Type | Solid state |
| Rating | 1A steady state per output |
| Mechanical | |
| Mounting | Surface mount with two #6 (M3.5 x 0.6) screws |
| Dimensions |
H 88.9 mm (3.5”); W 63.5 mm (2.5”); D 31 mm (1.22”) |
| Termination | 0.25 in. (6.35 mm) male quick connect terminals |
| Protection | |
| Circuitry | Encapsulated |
| Dielectric Breakdown | ≥ 2000V RMS terminals to mounting surface |
| Insulation Resistance | ≥ 100 MΩ |
| Environmental | |
| Operating/Storage Temperature | -20° to 60°C / -40° to 85°C |
| Humidity | 95% relative, non-condensing |
| Weight | ≅ 5.4 oz (153 g) |