ProMariner ProSafe 21036 Programmierhandbuch
ProSafe Isolation Transformer
Owner’s Manual and Installation Guide
Important Notice-
Please do not discard this manual. Carefully read this manual for
proper installation and operation instructions of this device.
It is essential for the safety of your boating family and other
boating families around you that this product be properly
installed.
For all Product, Installation or Service questions please call
ProMariner direct at 1-800-824-0524
Eastern Time 8:30am – 5:00pm
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Table Of Contents
Product Overview pages 1-2
Introduction page 3
Theory of Operation page 4
Installation Warnings page 5
Installation & Operating Safety page 6
Wiring Diagrams pages 7-17
Maintenance pages 18-19
Customer Service and Warranty page 20
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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
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Theory of operation- Why you need a ProSafe Isolation Transformer
When properly installed and connected, the ProSafe Isolation Transformer will provide isolation
between shore and boat power while maintaining a one to one turns ratio, meaning the shore
voltage is equal to boat voltage.
This is a high quality product, however, it is possible to unknowingly abuse or
misapply a transformer, therefore reducing its life expectancy. These installation and operation
instructions set out the guidelines for peak performance of the ProSafe Isolation Transformer.
The information contained in this manual outlines for the user the proper inspection, installation
and maintenance required of these transformers.
With the ProSafe Isolation Transformer, a boat’s electrical system and common grounding
conductor are not connected to the shore-side system. Power is transferred from the shore-side
electrical system to the boat’s electrical system by magnetic coupling. Specifically, this means
there is no direct electrical connection between the shore-side, earth-grounded AC power and
the boat’s AC power systems. The shore grounding is connected to a shield that is placed
between the primary (shore) and secondary (boat) transformer windings. This shield ensures
isolation of the boat because of its placement between the primary and secondary windings
within the transformer. In the unlikely but possible event a breakdown occurs within the ProSafe
Isolation Transformer, the shield can bear the fault current of a properly sized shore supply
circuit breaker long enough for the breaker to trip.
Properly installed, the ProSafe Isolation Transformer will electrically isolate AC shore power
from the boat’s AC power system, reducing galvanic corrosion due to a direct AC shore power
connection. This occurs because grounding one leg of the transformer secondary on board the
boat results in the establishment of a “neutral” ground. When the ProSafe Isolation Transformer
is properly installed, shoreline polarity is no longer a concern and the use of a galvanic isolator
is not needed.
Additionally, ProSafe Isolation Transformers are engineered to supply superior line noise
reduction and spike suppression, providing high quality AC power from less than perfect power
sources.
TRANSFORMER DESIGN FOR SOUND REDUCTION
ProSafe Isolation Transformers are “sound-controlled” in construction so that sound levels
consistent with industry standards are achieved. Transformer coils are precision wound under
measured constant tension to insure continual, vibration-free performance. Low noise levels in
the core are maintained by using specially designed clamps for bolting the core into a tight
unified assembly. All clamping bolts are tightened to an optimum torque level. Additional sound
reduction is realized by impregnation with polymerizing varnish cured by a special baking
process. Cabinet styles have their core and coils mounted to the cabinet on neoprene pads for
reduction of conducted sound. The case is formed and assembled using dampening agents to
reduce transmitted sound. The result is ultra quiet operation for the user.
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Installation Warnings
SAFETY FIRST-
Follow all precautions in the important safety instructions section in this manual. Pay close attention
to the DANGER, WARNING and CAUTION boxes within this manual and labeled on the unit.
WARNING:
ELECTRICAL POTENTIALS HAZARDOUS TO HUMAN LIFE CAN EXIST WITHIN THIS EQUIPMENT
WHEN ENERGIZED. DISCONNECT ALL INPUT POWER BEFORE OPENING CASE OR TOUCHING
INTERNAL PARTS. USE PROPER LOCK-OUT / TAG-OUT PROCEDURES.
THE INFORMATION CONTAINED HEREIN MAY NOT COVER ALL VARIATIONS IN EQUIPMENT OR
PROVIDE FOR ALL CONTINGENCIES WHICH MAY BE MET DURING INSTALLATION, OPERATION
AND MAINTENANCE.
INSPECTION UPON RECEIVING
Transformers should be carefully inspected upon receipt to ensure that no damage has occurred
during shipment. Any damage should be reported at once and a claim placed against the
transportation company.
INSPECTION DURING INSTALLATION
The transformer should be carefully inspected for any damage due to handling after receipt. The
nameplate rating on the unit should be checked against the job specifications to ensure installation of
the correct transformer. The transformer should be connected only as described on the label found
on the inside of the transformer cover or as shown in this manual.
Taps should be adjusted, if necessary, to match the available line voltage. Any bolted electrical
connections, including taps, should be checked and tightened since fasteners may have loosened
during shipment.
Warning- Fire Hazard
Primary and secondary over-current protection and conductor sizing must be in accordance with
ABYC recommendations.
Warning- Fire Hazard
Do not store any equipment on or next to transformer; The ProSafe Isolation Transformer is designed
to operate hot and must have free air flow to prevent over heating or damaging of neighboring
objects.
Warning- Shock Hazard
In-water and on board shock hazard; The ProSafe Isolation Transformer must be connected in
accordance with these installation instructions.
Warning- Electrical Shock and Fire Hazard
The ProSafe isolation transformer is designed for installation inside an engine room or similar
compartment inside the boat. Assure that the location of installation will not be subject to rain, snow,
excessive moisture or excessive heat.
Warning- Installation Precaution Boat wiring should only be done by qualified personnel as it can
cause shock, corrosion and other hazards if not done properly. For more information on this subject
contact the American Boat and Yacht Council (ABYC).
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Installation & Operating Safety
ProSafe Isolation Transformers are provided with an access cover to facilitate installation and
should never be operated without this access cover securely mounted in place.
CAUTION: ONLY QUALIFIED PERSONNEL SHOULD INSTALL, INSPECT, OR MAINTAIN
TRANSFORMERS SINCE THE NORMAL OPERATING VOLTAGES CAN BE HAZARDOUS.
INSTALLATION OF THE TRANSFORMER
In addition to fore mentioned safety concerns, proper installation of the transformer is required
to insure quiet transformer and prevent the development of objectionable sound levels. The
following installation rules are to be followed for a quiet Installation:
•Consider the installation and location of the transformer before engaging in
installation. Modifications to correct sound can be expensive.
•Place sound dampening pads between the transformer and its mounting
surface.
•Install transformer as far away as possible from any area where sound is
objectionable.
TRANSFORMER LIFE
Transformer life is dependent upon the thermal degradation of the insulation system which in
turn is dependent upon the winding temperature and duration of operation at that Temperature.
Factors which affect transformer life are line voltage, load current, load cycle, ambient
temperature, and other environmental conditions such as moisture, corrosive atmosphere,
vibration, and maintenance. Normal conditions of operation are covered in this manual and in
various industry standards.
CIRCUITS, TAPS AND CONNECTIONS
The ProMariner ProSafe Isolation transformer has up to four input and four output terminals.
Four input terminals accommodate a single input voltage when inter-connected. Four output
terminals provide a single output voltage or two voltages and a neutral when inter-connected.
Connections: Input and output wires must be connected to their respective terminals with an
appropriately sized lug rated for the input or output current.
The following wiring diagrams are sample configurations that can
be used with the ProSafe Isolation Transformers:
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