© 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