DFV Series
Flasher
Timing Mode:
On/off adjustable recycling flasher. The flash rate is adjustable from 10 to 120 flashes per
minute (FPM). Custom rates are available within ranges between minimum of 1 FPM &
maximum of 240 FPM. Duty cycle is 50%. Flash rate is adjustable by means of a knob
potentiometer on top of the unit.
Timing diagram:
… Solid state analog flasher circuitry
… DPDT (2 form C) isolated 10 ampere relay
contacts
… Variable flash rate: standard flash rate range
10-120 F.P.M.
… Single knob adjustment on top of unit
… 12V to 120V input voltage available - both AC
& DC models
… UL File #E96739 (M)
… CSA File #LR62586
Contact Information:
Arrangement: 2 form C (DPDT) - Diagram C
Contact Material: Silver - Cadmium Oxide
Rating (Resistive):
10A @ 240V AC Resistive
15A @ 30V DC Resistive
15A @ 120V AC Resistive
1/3 HP @ 120V AC
1/2 HP @ 250V AC
Expected Life @ 25°C :
10 Million operations, Mechanical
100,000 operations minimum at rated loads
Environmental Information:
Temperature Range:
Storage: -60°C to +105°C (-76°F to +221°F)
Operating: -45°C to +70°C (-49°F to +158°F)
Mechanical Information:
Termination: 8 pin Octal Style Plug or 11 pin spade terminals (Diagram C & D).
Enclosure: White plastic case with a dial scale for knob adjustment, reference only.
LDFV version has a black case.
Weight: 4 oz (114g) approx.
Outline Dimensions:
Timing Specifications:
Flash Rate - Adjustable: Standard - 10 to 120 flashes per minute (FPM). Custom rates are
available within ranges between minimum of 1 FPM and a maximum of 240 FPM.
Timing Adjustment: Knob adjustable potentiometer.
Initial Dielectric Strength:
Between open contacts: 1000V RMS,
Between adjacent contacts: 1500V RMS,
Between contacts & coil: 1500V RMS
Input Information:
Voltage: AC units- 12V, 24V, and 120V; DC units- 12V, 24V, 48V and 110V. Other
voltages are available.
Power Requirement: AC units: 3 VA or less; DC units: 3 Watts or less
Transient Protection: 1 JOULE MOV
Polarity Protection: On DC units - Yes
Input Voltages & Limits:
Nominal Minimum
Maximum
12V AC 10V 14V
24V AC 20V 28V
120V AC
105V 130V
12V DC 11V 14V
24V DC 20V 32V
48V DC 41V 55V
110V DC
95V 125V
Wiring Diagrams:
Ordering Information:
Definition of a part number for the Amperite
DFV Series Adjustable Flasher.
Example:
A: Denotes nominal input voltage. Voltages Available: 12, 24 & 120V AC; 12, 24, 48 &
110V DC. Custom Voltages are available.
B: Denotes type of input current required for operation:
A = AC - Alternating Current,
D = DC - Direct Current
C: Denotes flasher configuration.
D & E: Denotes range of knob adjustability for flash rate where:
D = Minimum number of flashes per minute (FPM).
E = Maximum number of flashes per minute (FPM).
Note: Standard rate is from 10 to 120 FPM. Custom rates are available within ranges
between minimum of 1 FPM and a maximum of 240 FPM.
F: Enter "L" if optional 11-pin spade terminals are required (Diagrams B & D).
G: Denotes 10A DPDT (2 form C) adjustable flasher - DFV Series.
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