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After 3 Lamp Ballast is Replaced Option 2

3 Lamp Parallel Ballast Lampholder Wiring Diagram

Non-shunted lampholders are replaced with shunted lampholders. Ballast wires are connected directly to the new shunted lampholders.

After 3 Lamp Ballast is Replaced Option 3

3 Lamp Parallel Nonshuntedl Lampholder Wiring Diagram

Wires are removed from existing non-shunted lampholders. Ballast wires are connected directly to one side of the non-shunted lampholders. Each side of the existing lampholders are connected together with a wire to simulate a shunted lampholder.


3 Lamp Series-Parallel Ballast

Factory wiring

How to Replace 3 Lamp Series-Parallel Ballast with Parallel Page 2

There are two more options for rewiring these lampholders for parallel ballasts.

  1. Replace all of the non-shunted lampholders with shunted. Wire the new ballast as parallel connecting the new ballast wires directly to the new shunted lampholders (option 2).
  2. Remove all of the existing non-shunted lampholders from the fixture and remove all of the wires from each of these lampholders (option 3). Reinstall lampholders after they are rewired.
3 Lamp Series-Parallel Ballast

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Replace 3 Lamp Parallel Ballast

Replace 4 Lamp Parallel Ballast

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Replace 1 Lamp Series Ballast with 2 lamp Parallel

Replace 2 Lamp Series Ballast with Series

Replace 2 Lamp Series Ballast with Parallel

Replace 2 Lamp Series Ballast with Parallel 2

Replace Two 2 Lamp Series Ballast with Parallel

Replace 3 Lamp Series Ballast with Parallel

Replace 3 Lamp Series-Parallel Ballast with Series

Replace 3 Lamp Series-Parallel Ballast with Parallel

Replace 3 Lamp Series-Parallel Ballast with Parallel 2

Replace 4 Lamp Series Ballast with Parallel

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