© 2016 Littelfuse Protection Relays & Controls
Flashers and Tower Lighting Controls
Sequencing Controls
www.littelfuse.com/sc3-sc4
Rev: 1-A-062316
Wiring Diagram
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
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
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.
L1 N/L2
SC4 shown. For SC3, terminal 6 and
load L4 are eliminated.
V = Voltage
L1 = Load 1
L2 = Load 2
L3 = Load 3
L4 = Load 4
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
