Now this is a Variac!

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Opcom:
Nice looking cat.

I have three of the dual 28A units, all different.

One has two 240v sections and a fitting for a motor.

Another has both sections rated 120 or 240V but they are connected in parallel with an equalizing 'choke'. I am not sure why it would carry both voltage ratings. I use it in the workbench with a 7" handwheel.

One is labeled for 240/120 per section and has taps for same which I think is unusual. It also has a rheostat on the main shaft. It was used as an output control in a shaker table driver. The voice coil section is still in Chicago if anyone needs to make a giant subwoofer. It has a huge chrome hub with three radial hand bars and a hollow hub & shaft for a 1/4" concentric accessory, a 4" rheostat.

The major obstacle to using them horizontally is being able to support the rear of the unit. Most panels will bend.

They each weigh about 100 lbs +/-. None of them are as king size as those 3-phase ones.

KM1H:
That looks big enough for a 4CX5000A shaker or at least a pair of 4x1's

KL7OF:
Quote from: AMroo on August 03, 2012, 10:46:18 PM

We're bigger Down Under.
Its the KW that counts.
That's a three phase device check the connector on top =440V X 15A X 3phase,
AND its still physically bigger than the three stacker.



I like the "Automatic Electric" Bombay

W7TFO:
Oil filled, too. ;)

73DG

KM1H:
Quote

The major obstacle to using them horizontally is being able to support the rear of the unit. Most panels will bend.


I wound up mounting the pair individually bracketed on the rack cabinet base which is a pair of 3/4" hunks of plywood. There was still room for the 125# HV transformer, a 52.5uF 10KV,  125# oil filled, a couple of contactors and the diode/metering board along with various bleeders, overload relays, HV fuse, etc.

At least the rack wont be top heavy :o

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