xformer
Senior Member
- Location
- Dallas, Tx
- Occupation
- Master Electrician
is the transformer secondary overcurrent protective device required to be located in or on the transformer enclosure?
Transformer Secondary Overcurrent Proetection
- Thread starter xformer
- Start date
- Status
- Location
- Connecticut
- Occupation
- Engineer
No, there is no such requirement.
It is very common for a MCB in a panelboard to servce as the transformer secondary overcurrent protection.
It is very common for a MCB in a panelboard to servce as the transformer secondary overcurrent protection.
- Location
- Wisconsin
- Occupation
- PE (Retired) - Power Systems
No.
See 240.21(C) for protection of transformer secondary conductors.
Most installations seem to fall within 10' and 25' limits.
- Status