Disconnect on the secondary side of the transformer?

[Muneepit]

Is a disconnect required on the secondary side of a transformer? The panelboard is located 60' away and has a main breaker. The primary side has a non-fusible disconnect on it and is fed from a 60 amp breaker.

 

[Dennis Alwon]

I believe at 60 feet you need a disconnect where the conductors receive their supply. This is not my forte so lets see what others say.

 

[hillbilly1]

If I remember correctly, 50' is the maximum distance.

 

[augie47]

In 99% of the situations, a disconnenct/OCP would be needed on the transformer secondary within 10 or 25 ft {See 240.21(C)} for details}
On two-wire primary/secondary, delta-delta, or outside secondary conductors, the rules could allow greater distances if the transformer has proper primary overcurrent protection per Art 450.3

The devil is in the details.

 

[Dennis Alwon]

In 99% of the situations, a disconnenct/OCP would be needed on the transformer secondary within 10 or 25 ft {See 240.21(C)} for details}
On two-wire primary/secondary, delta-delta, or outside secondary conductors, the rules could allow greater distances if the transformer has proper primary overcurrent protection per Art 450.3

The devil is in the details.

That was my thought- 25' max