Trying to determine circuit need for delta table saw

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Forum topic by JSal posted 11-30-2020 01:18 PM 229 views 0 times favorited 3 replies Add to Favorites Watch
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1 post in 53 days

11-30-2020 01:18 PM

Hello all. I purchased a Delta Unisaw made in the 1980s and it has a plate on the motor that is very difficult to read. This is making it difficult to tell what circuit breaker I need to install to safely run the saw. It is a single phase saw with a power switch that notes 30 amps FLA inside the power switch box. The plate on the motor is covered with stamped numbers but no legible printing. Some numbers/ letters on the plate include : 230, 3450, 115/230’ , and 32/16 as well as 36H15-1932 and 634L. I want to be safe and determine if I need a 20amp or a 30amp breaker and 10 gauge or 12 gauge wire. Anyone have any ideas? Thanks.

3 replies so far

View Brawler's profile


198 posts in 800 days

#1 posted 11-30-2020 01:36 PM

Minimum you need 240v/ 20A circuit with 12awg wire. However I would highly recommend a 240v/ 30A circuit with a 10awg wire, the 20A circuit may trip on startup surge.

-- Daniel, Pontiac, MI

View Fred Hargis's profile

Fred Hargis

6732 posts in 3462 days

#2 posted 11-30-2020 01:40 PM

The “32/16” is the amperage draw of the motor on 120 V (32) and 240 V (16). So like Brawler said a 20 amp breaker (12 awg) should do it, there’s no harm in using a 30 amp if you’re installing a circuit.

-- Our village hasn't lost it's idiot, he was elected to congress.

View clagwell's profile


341 posts in 762 days

#3 posted 11-30-2020 01:54 PM

What voltage are you planning to use?

-- Dave, Tippecanoe County, IN --- Is there a corollary to Beranek.s Law that applies to dust collection?

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