Forklift charger disconnects

[JP23]

Hi all,

Please give me your thoughts regarding a forklift battery charger installation.

1) Does the NEC require a disconnect on the line side of the charger if the OCPD is located out of sight?
2) Can the secondary conductors pass through a steel siding exterior wall. If so in what manner?
3) Would a disconnect be required on the outside for the secondary conductors?

 

[Frank DuVal]

1. Disconnect on line side if not cord and plug connected and OCPD is out of sight.
2. I would use a large gland (whatever cord grip) and run both + and - through the same hole to avoid induction heating, as these things do 200 amps + for some models.
3. No disconnect on secondary, it is cord and plug connected to the battery.

 

[SceneryDriver]

1. Disconnect on line side if not cord and plug connected and OCPD is out of sight.
2. I would use a large gland (whatever cord grip) and run both + and - through the same hole to avoid induction heating, as these things do 200 amps + for some models.
3. No disconnect on secondary, it is cord and plug connected to the battery.

A single gland for the secondary DC conductors is a good idea so that nothing (building siding, etc...) ends up magnatized by unequal magnetic fields, but nothing will inductively heat with DC.


SceneryDriver

 

[JP23]

Thanks a bunch for the replies! Your guidance has been very helpful.