I contacted Richard about this.
"Everyone received mounting hardware, except for the transformers with epoxied centres.
Mounting hardware was placed on top of the packaging, so they were seen on opening the box.
Shipping / postage could move their location in the box.
ALL “800VA” and 1000VA have a epoxied centre with 3/8” drill hole.
Metal washer and neoprene pads are not required with a potted centre.
Every member of your group received a packing slip which reads as follows:
“do not allow your mounting bolt to touch grounded metal surface above the transformer. This includes the chassis cover.”
Bolt length becomes custom to the cabinet size a member has chosen.
Make sure the bolt length you choose for your project does not touch the chassis cover above the transformer. A short turn can result.
Richard"
Buzz,
Thank you for relating the information so quickly. I ordered 2 x 800 VA trafos and they do come with epoxied center (I was wondering about that since I did not order that). So no mounting gear come with them. It is all clear now.
I did read the information that Richard placed in the box (which was exactly what you posted). But I do not understand how the bolt, if touching the chasis cover, will short out the trafos. Also, the bolt will be in contact with the bottom of the chasis (to lock the trafo in place) and that's OK?
I'll be grateful if someone cares to enlighten me .
Regards,
Bolt through one grounded plane is ok, but if you have the bolt running through a grounded piece of metal on top and bottom, you have created magnetic pole.
Buzz,
Thank you for the explanation. Although I still do not quite get the picture, I tend to agree with you that it has something to do with magnetic induction and not electrically related. The bolt is not conencted to anything that has voltage, therefore there is no current flowing through it. Anyway, I think I will put a rubber pad under the trafo when bolt it onto the bottom plate of the chasis. This should help to reduce any movement of the trafo.
Regards,
I am not going to lie. When I opened the box and saw these beasts. I got a little tingle ,down there.