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Dimensions in millimeters

Hella ballasts use class H insulation materials which are designed for temperatures up to 180°C,    thus ensuring maximum service life.The permitted maximum working temperature of the winding is designated ‘tw’. The adherence to this temperature guarantees an average life of 10 years continuous usage. If the temperature in application is lower, then the life is correspondingly higher.

Hella HID ballast windings are designed and constructed using Class H insulation materials, the tw130 or in OG models tw150 rated winding ensuring maximum service life.

In normal operation in a 40°C ambient temperature, probable service life of more than 50 years could be expected.

The graph below shows the theoretical service life of an Hella HID ballast. Even when arduously operated at the maximum recommended temperature, more than 10 years service life can be expected. Every 10°C over maximum winding temperature of 130°C or 150°C halves ballast life. The winding temperature is the ambient temperature plus ∆t, the temperature rise, which is a function of ballast power consumption.

The high quality and reliability of insulated conductors is dependent not only on the production process, but also on the choice of raw materials.

Many years of experience, both as a user and manufacturer of enamelled winding wire has given Hella the knowledge and expertise to select the best raw materials from internationally approved suppliers.

Critical attention is paid to the enamel as the material utilised to insulate the conductor. Choice of enamel is a key factor and is linked both to the enamelling system as well as the electrical, mechanical and technical characteristics of the finished product.

Special features of Hella HID ballasts:
• Very short magnetic paths
• Transverse laminations with no stray field junctions
• Short heat paths         
• Winding insulation Class H materials
• Vacuum impregnated core and coil
• Long service life
• Low power consumption
• tw150 winding temperature rating
• fully automatic production technology with assured manufacturing procedures and quality

100% final testing
• continuity
• winding short circuit
• core to coil high voltage test
• operating values

HID Ignitors and Ballasts
The starting voltage for most High-Intensity Discharge (HID) lamps, especially metal halide and high-pressure sodium types, is higher than the mains voltage.

Ignitors provide the necessary high voltage to start such lamps.

The high-voltage pulse varies from 1 to 5kV depending upon the type of the lamp and is inhibited when the lamp starts.

Hella ignitors are manufactured in accordance with IEC 60926 and IEC 60927, the International Standards specifying performance, general and safety requirements for starting devices.

Old high-pressure sodium and metal halide lamps with conventional ignitor technology often cause visual discomfort and electromagnetic interference at the end of the lamp life when the ignitor would repeatedly strike the lamp, and it would not stabilize electrically.

This cycling can be a significant irritant and become a safety risk.

The solution: ‘PulseControl’ from Hella, the first digital ignitor in the world.

Greater reliability, greater ignition power, reduced re-strike time and minimum interference through digital, precise management of all lamp types without annoying flashing.

Precise lamp management through digital technology
The patented switching circuit digitally controls the ignition and automatic tripping logic functions. PulseControl does not consider the time of the re-strike period but the number of attempts made. Because of this, all lamps are switched off after 3 cycles regardless of luminaire or lamp type.

Re-strike time reduced by  up to 50%
Depending on the lamp wattage, 4–10 ignition pulses per half wave will be generated.As a result of the increased ignition power and the pulse/break cycle, the re-strike time is reduced by up to 50%.

Interference reduced by  up to 90%
This 90% reduction in interference time (only about 30 sec instead of 300 sec), is due to the reduced re-strike period and the pulse/break cycle which strikes for 5 seconds then pauses for 25 seconds.

Ignitor Temperature Rise
Because ignitors have heat-sensitive elements, their suitability for particular applications is determined by the rise in the element’s temperature. When mounting an ignitor in the luminaire on a control equipment enclosure, the ambient temperature range of the application must be considered.

Quality components in Hella ignitors ensure that they can withstand temperatures from –30°C to +100°C with a minimum power loss.

Long life
Lighting control electronic equipment is designed to run continuously for a minimum of 80,000 hours when operating at its maximum temperature. This high level of reliability can be achieved only by using high-quality insulation and heat-resistant components. Very low temperature rise in Hella ignitors makes them highly reliable components for use in all lighting control equipment.

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