Transformer Secondary Disconnect
- Thread starter dose101
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- Location
- Lockport, IL
- Occupation
- Semi-Retired Electrical Engineer
Re: Transformer Secondary Disconnect
Not always. Look at NEC Table 450.3(B).
Not always. Look at NEC Table 450.3(B).
- Location
- Illinois
- Occupation
- retired electrician
Re: Transformer Secondary Disconnect
A disconenct is never required by code for the secondary of a transformer. The transformer secondary and/or the secondary conductors may require overcurrent protection.
Don
A disconenct is never required by code for the secondary of a transformer. The transformer secondary and/or the secondary conductors may require overcurrent protection.
Don
pierre
Senior Member
- Location
- Westchester County, New York
Re: Transformer Secondary Disconnect
Both Charlie and Don are correct ... it is semantics, a play on the language used.
If I can take a little liberty here, what I believe charlie meant is that based on table 450.3(B), you may have a disconnect on the secondary side of the transformer.
What Don meant is that the secondary of a transformer itself never has a disconnect.
If I stuck my nose where it didn't belong
Pierre
Both Charlie and Don are correct ... it is semantics, a play on the language used.
If I can take a little liberty here, what I believe charlie meant is that based on table 450.3(B), you may have a disconnect on the secondary side of the transformer.
What Don meant is that the secondary of a transformer itself never has a disconnect.
If I stuck my nose where it didn't belong
Pierre
- Location
- Illinois
- Occupation
- retired electrician
Re: Transformer Secondary Disconnect
Pierre,
You are exactly correct. I didn't know what the real question in the original post was asking. Charlie answered based on overcurrent protection and I answered based on a disconnet switch.
don
Pierre,
You are exactly correct. I didn't know what the real question in the original post was asking. Charlie answered based on overcurrent protection and I answered based on a disconnet switch.
don
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