Transit Ballasts

Special DC
Applications
FLASHING BALLAST 120VAC

Lamp friendly
Two operation mode: "on" continuously or "flashing"
Patented electronic switch (US Patent no: 5,936,356)
Synchronized flashing: up to 35 "auxiliary" ballasts can be synchronized with a "master" ballast to flash simultaneously.
Flashing in sequences: an unlimited number of "auxiliary" ballasts can flash in programmed sequences using a mechanical or electronic sequencer.
For indoor and outdoor applications

 

120vac Flashing ballast: Master and Auxiliary
Ballast dimensions and applications diagrams
General instructions for ballast and lamp installation

120VAC FLASHING BALLAST: MASTER and AUXILIARY

Part number:master
Part number:auxiliary
 SFF14008A120P
SFS14008A120P
Ballast type
Rapid start
Nominal input voltage
 120 vac / 60 hz
Input voltage range
85-135 vac
Max. input 
current(A)
Lamps
 1 x F13T8
1 x F17T8
1 x F25T8
1 x F32T8
1 x F40T8
0.18
0.21
0.26
0.36
0.41
Maximum power
 40 watts
Operating temperature
 -20oc to +55oc
Operating frequency
 >25 Khz
Housing format
 See diagram below
Interconnection
Screwless terminal bloc

Technical features:

    Power factor >98%
    Lamp fail detection
    Reverse polarity protection
    Output short-circuit protection
    Input transient protection: 2Kv (20ms)
    Low THD <10%
    CSA listed – UL certification in process


Ballast Dimensions: Master and Auxiliary

 

Applications Diagrams

Example A:

    1 or many lamps flashing independently (no synchronization).
    1 Master ballast for each lamp is required.

Example B:

    Up to 35 lamps flashing simultaneously. 1 Master ballast and 1 to 34 auxiliary ballasts are required. The auxiliary ballasts are synchronizing to the master's signal.


Example C:

    X number of lamps flashing in programmed sequence. Auxiliary ballasts and a sequencing device are required.


    Note: with this configuration, all 3 ballasts are independent.See next configuration to see how to link 2 ballasts.


    Note: with this configuration, aux. #3 is linked to aux. #2
General instructions for ballast and lamp installation

Introduction

    Rapid start lamps operate on the principle of utilizing a starting voltage which is insufficient to start the lamps while the cathodes are cold but is sufficient to start the lamps when the cathodes are properly heated. This voltage range between starting cold and starting hot is a very narrow band of voltage which must be closely controlled by the ballast in order to prevent either failure of the lamps to start or instant starting of the lamps with cold cathodes which is detrimental to the lamps. In order to stay within this range of voltage, it is necessary to excite the gas within the lamps by means of an external voltage applied between the lamp and a grounded metallic reflector which acts as a starting aid. Proper installation will assure reliable and efficient operation from the ballast and lamp and maximize their life.

Lamp installation

  • We strongly suggest that the lamps be mounted within 1 inch of a grounded metallic reflector. Standard socket available on the market are designed to meet this requirement.
  • Proper seating of the lamp within the socket will provide good electrical contact on each pin of the fluorescent lamp.

    Ballast installation

    1. The ballast should be mounted on a grounded metallic surface. The electrical ground is achieved through the housing of the ballast.
    2. Be sure that each wire between the lamp socket and ballast connector make good electrical contact.

    Note

      Our experience shows that all lamps are not created equal. The first hundred hours of operation (flashing mode) are the most important. After that period, blackening at the end of the fluorescent shouldn't be visible. If it is, make sure you followed the recommended installation or replace the lamp.


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