HISTORY:

Imported from an international research laboratory (by ship!) as the equipment was being disposed of due to the previous establishment upgrading their equipment in the early 2000's. This is yet another very nice item of industrial equipment which I have decided will become an organ donor.

It is the MATSUNAGA (Yokohama Japan) Frequency Converter, intended for laboratory use and providing up to 240V AC at a user adjustable variable frequency. Not only that, the AC voltage output could be varied across a wide range AND the user could set current limiting, so it could alter all three aspects of the AC output wavefrom, frequency, voltage and current limiting. I actually fired this gear up and it was working great but oh dear! What to do with it? Sure you could put up on the workbench but at that sort of weight it needed a lot of space and a good solid workbench. I decided a while back to offer this equipment as a complete unit "elsewhere" online for a while but there was no interest at all so I pondered over what to do with this equipment (to keep or not to keep) but it had a few things going against it.

As a complete unit it was EXTREMELY HEAVY, over 50Kg, which means that my arms are now 30cm longer from lugging this beast around the workshops! ... but more seriously, shipping would have been difficult to ensure safe travel AND very expensive. It also had other minor cosmetic issues because it is not easy moving such a monster around so it suffered scrap marks on various places of the all steel casing.

So, the "donor operation" has begun and here is one of the very nice components .... a high current, panel mounted, through hole terminal block with safety protector.

KOWA ELECTRIC INDUSTRY CO. LTD (Japan) - Terminal Block

Ex MATSUNAGA laboratory/industrial test equipment

TYPE: 4 Way

Material: Black Thermo plastic, heavy (125g) - looks almost (but is not) like Bakelite!

Panel mounting, through hole

Large screw terminals each side of the block

Safety protective clear perspex external terminals cover (removable)

Voltage rating unknown but the previous use was with single phase 240V AC equipment

Current handling capability is also not indicated on the block but in the previous equipment, output/input capabilities at 240V AC were at least 16 Amp

All metalwork is Chrome plated

The two outer metal posts have a thread at both the top (to secure the perspex safety cover) and at the other end for securing the block to a panel - either use a nut directly onto this thread (not supplied) or have threaded holes in the equipment panel.

DIMENSIONS:

Screw terminals are 10mm diameter, the screw has a 5mm diameter shaft

Overall block is 94mm x 30mm height x 39mm depth

Mounting holes/posts are set 83mm apart and centred at 15mm from the top/bottom of the block

Rectangular cut-out is required to fit the terminal block, this measures 67.25mm x 29.9mm

When mounted, the block protrudes from the panel 25mm and inside the equipment, it extends 17mm to the rear

I have a collection of high current leads which were internally connected to this and other blocks in the equipment HERE

COSMETIC CONDITION

USED

Very good condition

NO physical damage

NO corner chips or pieces missing!