wireday
Senior Member
- Location
- New England
- Occupation
- Master electrician
Is there any GFCI protection on the secondary side of a 24 volt wall plugin transformer plugged into a GFCI receptacle? In areas adjacent to kitchen sink/bath areas.
No.
The secondary of the power supply is not permitted to be grounded so GFCI protection would be useless.
Other than the physical issue of making a grounding connection to a wall wart power supply, what, in general, would prohibit the secondary from being a grounded system?No.
The secondary of the power supply is not permitted to be grounded so GFCI protection would be useless.
My reply was based on this:Other than the physical issue of making a grounding connection to a wall wart power supply, what, in general, would prohibit the secondary from being a grounded system?
But you would put the GFCI on the 120V circuit FEEDING the transformer, not on the 24V side of the circuit.
The GFCI on the primary side protects against an insulation fault in the transformer energizing the secondary with line voltage.A ground fault on the secondary side of an isolation transformer is not seen as a ground fault by a primary side device.
To be compliant you need GFCI on the secondary side.
The GFCI on the primary side protects against an insulation fault in the transformer energizing the secondary with line voltage.
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How?
What is the fault current path?
No.That would require one side of the secondary side to be grounded, now wouldn't it.
-Hal