SC3120A

Flashers and Tower Lighting Controls Sequencing Controls SC3 / SC4 SERIES Description 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. Features & Benefits Wiring Diagram L1 N/L2 FEATURES BENEFITS Totally solid state and encapsulated No moving parts to arc and wear out over time and encapsulated to protect against shock, vibration, and humidity 1A steady solid state output Provides 100 million operations in typical conditions. Accessories V = Voltage L1 = Load 1 L2 = Load 2 L3 = Load 3 L4 = Load 4 P1015-13 (AWG 10/12), P1015-64 (AWG 14/16), P1015-14 (AWG 18/22) Female Quick Connect These 0.25 in. (6.35 mm) female terminals are constructed with an insulator barrel to provide strain relief. P1015-18 Quick Connect to Screw Adapter Screw adapter terminal designed for use with all modules with 0.25 in. (6.35 mm) male quick connect terminals. SC4 shown. For SC3, terminal 6 and load L4 are eliminated. Ordering Information MODEL INPUT VOLTAGE RATING CHANNEL FLASH RATE SC3120A 120VAC 1A 3 Sequential Adjustable 30 - 30FPM SC4120A 120VAC 1A 4 Sequential Adjustable 30 - 30FPM If you don’t find the part you need, call us for a custom product 800-843-8848 © 2016 Littelfuse Protection Relays & Controls www.littelfuse.com/sc3-sc4 Rev: 1-A-062316 Flashers and Tower Lighting Controls Sequencing Controls SC3 / SC4 SERIES Specifications Technical Data Operation Flasher Function Diagram FLASHER (CHASING) Sequential 3 circuit flashing of incandescent lamp loads. Fixed rate. V = Voltage R = Reset L1, L2, L3, L4 = Lamps TD = Time Delay (all are equal) 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 Termination 0.25 in. (6.35 mm) male quick connect terminals Dimensions H 88.9 mm (3.5”); W 63.5 mm (2.5”); D 31 mm (1.22”) 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) 4 SC4 shown. For SC3, L4 is eliminated and L1 TD begins as soon as L3 TD is completed. Specifications © 2016 Littelfuse Protection Relays & Controls www.littelfuse.com/sc3-sc4 Rev: 1-A-062316