© 2016 Littelfuse Protection Relays & Controls

Flashers and Tower Lighting Controls

Flashers

www.littelfuse.com/fs500

Rev: 1-A-062316

FS500 SERIES

FLASHER (ON FIRST-DPDT)

V = Voltage

R = Reset

T1 = ONTime

T2 = OFFTime

NO = Normally Open

NC = Normally Closed

Flasher Function Diagram

Specifications

Technical Data

Operation

ON/OFF recycling flasher with adjustable

flash rate

Flash Rate

Adjustable from 10 - 100 operations per

minute (guaranteed range)

ON/OFF Ratio

≅ 50%

Input

Input Voltage

12VDC, 24VAC/DC, 120VAC/DC, 230VAC

Tolerance

12VDC & 24VDC/AC

-15% - 20%

120VAC/VDC & 230VAC

-20% - 10%

AC Line Frequency

50/60Hz

Output

Load Type

Electromechanical relay

Form

DPDT

Rating

10A resistive @ 120/240VAC & 28VDC;

1/3 hp @ 120/ 240VAC

Mechanical

Mounting

Plug-in socket

Dimensions

H 91.6 mm (3.62”); W 60.7 mm (2.39”);

D 45.2 mm (1.78”)

Termination

Octal 8-pin plug-in

Protection

Isolation Voltage

≥ 1500V RMS input to output

Polarity

DC units are reverse polarity protected

Environmental

Operating/Storage

Temperature

-20° to 60°C / -30° to 85°C

Weight

≅ 5.8 oz (164 g)