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MARINE ISOLATION TRANSFORMERS

When properly installed, Charles Marine Isolation Transformers will electrically isolate the AC shore power from the boat's AC power system.  The boat's electrical system and the grounding conductor are not actually connected to the shore-side power. There is no direct electrical connection between earth-grounded shore AC power and the onboard electrical system. The shore ground is connected to a shield that is wound between the primary (shore) and the secondary (boat) transformer winding.  The connection of this grounding wire only to the shield of the transformer isolates the boat's AC electrical system from shore. 

Compliance with independent testing lab requirements maximize safety

  • Marine UL listing ensures durability and safety
  • Greatly reduced potential for in-water shock hazard
  • Eliminates the need for polarity alarms and galvanic isolators

Superior technology guarantees top performance

  • Fully-encapsulated components and transformer windings
  • Full current carrying shield per ABYC E-11

Easy to install and use

  • Occupies less space and easier to install than most units
  • Terminal blocks for easy customer connections
  • 3.6 KVA through 12 KVA units mount to either bulkhead or deck. 24 KVA unit mounts to deck only.

Corrosion-resistant housing and components

  • Convection-cooled enclosure designed to meet NEMA 3R requirements.

ISOLATION TRANSFORMERS

Charles Part #

Product
Type

Input
Current

Input
Voltage
Range

Output
Current

Output
Voltage
Range

Dimensions (in.) /
Weight (lb.)

Depth

Width

Ht.

Wt.

93-IXFMR3/6T-A

3.6KVA
w/terminals

30A

120V
60Hz

30A

120V
60Hz

10.5

10.5

8

60

93-IXFMR3/8I-A

3.8KVA
Int’l

32/16A

120/240V
50/60Hz

32/16A

120/240V
50/65Hz

10.5

10.5

10

70

93-IXFMR6T-B

6KVA
Basic

50A

120V
60Hz

50A

120V
60Hz

12.75

12.75

11

155

93-IXFMR7/5T-A

7.5KVA Basic 32A 230V
50/60Hz
32A 115/230V 50/60Hz 12.75 12.75 11 155

93-IXFMR12T-A

12KVA
w/terminals

50A

240V
50/60Hz

50A

120/240V
60Hz

16

15

12

235

93-IXFMR12I-A

12KVA
Int’l./ Universal

50A

120/240V
50/60Hz

50A

120/240V
104/208V
50/60Hz

16

15

12

235

93-IXFMR15I-A

15KVA
Int’l./ Universal

64A

240VAC
50/60Hz

64A

120/240V
50/60Hz

16

15

12

235

93-IXFMR24I-A

24KVA
Int’l./ Universal

100A

200/208/
220/230/
240V
50/60Hz

100A

120/240V
104/208V
50/60Hz

18.5

20.5

17

550

97-001127-A

3.6/3.8KVA

Strain Relief Kit

97-001120-A

6KVA, 7.5KVA,
12KVA

Strain Relief Kit

97-001121-A

24KVA

Strain Relief Kit

97-001741-0

24KVA

100 Amp Strain Relief Kit

93-XFMRS0FT-A

3.6KVA, 3.8KVA,
6KVA, 7.5KVA,
12KVA

Transformer SoftStart 120V or 240V up to 50A

 

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