I am using WS12A Switches And have been reading the threads but im not too sure how to modify the switch to turn off the curcuit in the switch so the led bulbs turn off 100% .Can anyone help me with pictures or anything . I have read you have to snip the #7 loop but im not sure what one it is. All help would be great . Thanx
timmyy,
From the above I'm assuming you are trying to add a neutral (white) wire to the WS12a to prevent it from stealing current through the load.
Prerequisites:
- If your switch is a "new" model ('07) it may be revised and not conform to the documentation below. Bottom line - we don't know how to modify it.
- Don't perform any modifications unless you're extremely comfortable with soldering, heat shrinking, strain relieving, and working with line level voltage. The reference on this hardware is actually 120V.
- The modifications described below will render your switch "non-UL" compliant (the disconnect will no longer completely disconnect the load).
- The modifications described will prevent the WS12a from stealing current through your LED's. However, I have never tested one with a LED string. Even with this mod your LED's may not operate to your satisfaction.
- Disassembling and reassembling these switches isn't exactly a cake walk. The power disconnect switch can be a pistol to reassemble properly (assuming you don't spread the actuator, spring, and contactor when you take it apart)
- The PWB's are "inexpensive". Too much heat and you'll loose the solder pad (jumper time).
If the above hasn't scared you off (yes, I am trying) read on. BTW - I haven't performed one of these mods in this decade.
Ido bartana's site contains modification descriptions for the WS467. This switch is electrically identical to the WS12a (or at least it was some time back).
Before proceeding, review the following schematics.
Schematic 1 shows the 330K resistor connected to the load (blue wire) side of the choke (L1). This is the "easy" mod.
Link:
Schematic 1Schematic 2 shows the 330K resistor connected to the triac side of the choke (more difficult). For this unit you will need to unsolder the resistor connection to the triac and relocate to the "white-neutral" connection.
Link:
Schematic 2The neutral wire modification is described here :
Neutral WireHope this helps - please be extremely careful,
Boiler