Buck Boost Transformer

[snadeau]

I want to know how to wire this transformer from the following diagram.

I have 208 primary and want a 240/120 secondary

 

[david luchini]

I want to know how to wire this transformer from the following diagram.

I have 208 primary and want a 240/120 secondary

This doesn't look like a buck boost transformer, it looks like an isolation transformer.

The connections for the possible voltage combinations are listed right on the nameplate.

 

[Smart $]

Just like it says:

208V input L1-H1 and L2-H8, jumper H2 to H7.

120/240V output L1-X1, N-X3, L2-X4, jumper X2-X3.

 

[snadeau]

I wasn't sure if the x1 to x3 applied to the 120/240 voltage combination ; which doesn't make sense to me...

 

[kwired]

I wasn't sure if the x1 to x3 applied to the 120/240 voltage combination ; which doesn't make sense to me...

The only combination that has X1 connected to X3 is for 120 volt output, if you want 120/240 output you will not be using the configuration that has those two connected together.

 

[kwired]

You have a transformer that has 4 input voltage choices and output voltage choices are 120 only, 240 only or 120/240.

 

[Smart $]

I wasn't sure if the x1 to x3 applied to the 120/240 voltage combination ; which doesn't make sense to me...

The "120" under "VOLTS" is one-half line too low, as is "X1 X4" under "LINES".

For 120V output, there are two jumpers: X1 to X3, and X2 to X4.

 

[GoldDigger]

The "120" under "VOLTS" is one-half line too low, as is "X1 X4" under "LINES".

For 120V output, there are two jumpers: X1 to X3, and X2 to X4.

And, as was mentioned earlier, that is not what you want anyway so do not worry about it.

The only difference between 240 2 wire and 120/240 3 wire configuration is whether or not you connect a wire to the center tap and make that the grounded conductor.