3
Introduction
Congratulations on your purchase of the ProSafe Isolation Transformer.
The ProSafe Isolation Transformer is designed for 120 or 240 volt input, 120, 120/240 (3 wire)
or 240 volt output. The transformers are rated at 3.6, 3.8 and 12 KVA. Additionally, the 3.8KVA
model #21038 and the 12KVA model #21042 are 50/60hz compatible in an effort to provide
maximum flexibility in various applications. Both the primary (input) and secondary (output)
windings may be reconnected for various voltages.
The ProMariner ProSafe Isolation Transformer has been engineered
by Jefferson Electric to meet the below requirements of the ABYC standards:
11.9.1. If used, an isolation transformer shall be of the encapsulated type
and shall meet the requirements of UL 1561, Dry Type General Purpose
and Power Transformers.
11.9.1.1. A metallic shield shall be located between the primary and secondary winding and be
electrically insulated from all other portions of the transformer.
It shall be designed to withstand, without breakdown, a high potential test of 4000 volts AC,
60Hz, for one minute, applied between the shield and all other components such as windings,
core, and outside enclosure.
11.9.1.2. A separate insulated wire lead or terminal identified as the shield connection is to be
solidly connected only to the shield, and brought out for external connection and shall be equal
to or greater than the aggregate circular mil area of the largest transformer phase conductor(s).
11.9.1.3. The shield and its connection are to be of sufficient ampacity to provide a sustained
fault current path for either the primary or secondary windings to ensure operation of the main
shore power disconnect circuit breaker when subjected to a fault current level in accordance
with ABYC TABLE V - B.
11.9.1.4. The transformer shall be tested and labeled by an independent laboratory to establish
compliance with the requirements of E-11.9.
111.9.1.5. The transformer case is to be metallic with a grounding terminal provided.
For More Information on this or other ABYC standards, please contact the American Boat and Yacht
Council:
3069 Solomon’s Island Road
Edgewater,
MD
21037
Telephone:
410-956-1050
Fax: 410-456-2737
