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Isolation Transformer, Circuit diagram questions

Printed From: myHanse.com
Category: Hints & Tips
Forum Name: 445/455/458
Forum Description: 445/455/458 Hints, Tips and News
URL: https://www.myhanse.com/forum_posts.asp?TID=15467
Printed Date: 27 March 2026 at 03:29
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Topic: Isolation Transformer, Circuit diagram questions
Posted By: 32mike
Subject: Isolation Transformer, Circuit diagram questions
Date Posted: 09 December 2025 at 14:35
Since we’re asking nerdy electrical questions today😵‍💫😉, …

Does anybody with a US boat with Air con have two of these isolation transformers? I was looking at the circuit diagram and it shows one each for two AC buses. Only looks like one to me on my boat.

Speaking of circuit diagrams, …🤷‍♂️, … mine is incomplete. It ends before showing all of the DC circuits. It’s like they dropped off the last page or two. It’s missing half of the blocks of DC circuits in the main board. Anybody else discover that and remedy it?




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Mike
S/V Dulces Sueños
458 #087
Tampa, FL



Replies:
Posted By: MrPotatoHead
Date Posted: 09 December 2025 at 19:25
Mine only has one. The split occurs after the transformer.

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Hanse 458 #126


Posted By: MrPotatoHead
Date Posted: 09 December 2025 at 19:31
I sent you a detailed DC schematic and the USA version AC schematic by PM.

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Hanse 458 #126



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