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WhisperPower BV 

Kelvinlaan 82, 9207 JB Drachten, The Netherlands, Tel: +31 (0) 512 571 550, Fax: +31 (0) 512 571 599, [email protected], www.whisperpower.com

AC output cable:

Pull the AC output cable through the cable gland and connect it 
to the AC output connector. Connections are marked as “L1”-line, 
“L2”-line, “N”-neutral and “Pe”-earth. Make sure it is tightly 
screwed. Choose the proper output terminals according to the table 
found on the connector PCB inside the connection compartment.

connection 230V output

connection 110V 
single phase output

connection 110V 
dual phase output

WARNING:

 Check the AC input and AC output 

after connection. Wrong or loose connections will 
damage the WP-GI permanently.

tprotective earth

Depending on local regulations and usage of the safety isolation 
transformer, connect the output Pe to output N using the wire 
jumper 2.5mm2 to polarize the system. This can be done on the 
location above the AC output connector.

If the secondary Pe may not float (e.g. when the boat is in dry-
dock or on a land based vehicle), the INPUT side Pe can be con-
nected to the oUTPUT side Pe using the 2.5mm2 wire jumper.
In the standard configuration, the shielding of the transformer is 
connected to the secondary AC side (output) of the WP-GI and 
the casing. Upon request, the shielding can be connected to the 
primary AC (input) side without connection to the casing. This is 
not standard and requires opening of the casing.

optional GFcI or circuit breaker in front cover

If the optional front cover for holding a two or four pole DIN rail 
mounted device is installed, the appropriate wiring must be con-
nected to the device and the device to the AC input or AC output 
terminal of the WP-GI. Connect according to local regulations! To 
mount the option:
1. Put breaker devices on DIN rail
2. Connect wiring
3. Use bolts to mount the DIN rail to the cover.
4. Place the cover

  

2.6 operation

The WP-GI has no buttons to operate. When the AC input voltage 
is connected to grid or shore power, the softstart will energize the 
transformer (PRoTeCT LeD will light up) and then the AC output is 
switched on. The red PRoTeCT LeD will switch off and the green 
PoWeR LeD will light up.

The green oPeRATIoN LeD will remain on as long as there is AC 
output power. If any failure is detected during operation, the output 
will be switched off and the red PRoTeCT LeD will be lit.

 

2.7 trouble shooting

2.8 ce declaration of conformity

Product: WP-GI Whisper Power Galvanic Isolation Transformer. 
WhisperPower guarantees that the unit complies with the relevant 
standards.

2.9 specification 

[ zelfde tabel als in de datasheet]

20120920UserManual WP-GI

Problem

Possible cause

Solution

No output voltage

No input voltage

Check all input  

connections and  

breakers upstream

Wrong input voltage

Check voltage and 

settings

The PROTECT 

LED burns

Over temperature

Check ambient  

temperature
Check if ventilation  

is blocked

Wrong input voltage

Check that continuous 

load is <3600W

Check if fans are working

Check input voltage and 

settings

When AC input 

is connected, 

the input circuit 

breaker trips

Load on output too high

Check current rating  

of circuit breaker on 

input and adapt load 

accordingly.

Softstart does not work

Fuses F1A are blown. 

Repair by skilled  

technician (requires 

opening of the casing)

AC Connector 

sparks or has 

blackened

Wire ends in terminals 

not properly tightened

Replace wiring,  

verify connector,  

tighten correctly

article nr. 60110100  

Wp-GI 3600 Galvanic Isolation-transformer

Application 

Galvanic Isolation Transformer for safety and protection of galvanic corrosion

Transformer type 

2 winding toroidal isolation transformer

Construction method  

Special vibration isolated mounting of transformer

Cooling method 

Temperature controlled gradually regulated forced air cooling above 60° transformer core 

Winding Data 

Rated power 

3.6kVA

Rated voltage 

230V / 110V

Rated frequency 

50hz / 60hz

Nominal current 

16A / 32A

Inrush current 

Softstart included <4A

Tappings 

Prim/sec. mid-point (110vac)

Material winding 

Copper

Temperature rise class 

Class F 100 K

Insulation class 

Class h 180 C

Insulation level 

Class AC3

Impedance 

Secundary less than 3.0% at 3,6kVA

General 

No load consumption 

21 W

Full load efficiency 

>95% 

Ambient operating temperature 

-10°C .. +45°C, derating to 80°C

Storage temperature 

-25°C to 85°C

operating humidity 

95% max, non-condensing

Audible noise  

<40.0 dB(A); <50dB(A) with forced cooling

Local user interface  

None

Protections 

overcurrent, short circuit 

Not included, external breaker(s) required according to local regulations

Temperature protection 

Automatic switch off if transformer core > 120°C

overvoltage protection 

Softstart is protected for overvoltage using fuse

earthscreen between windings 

Compliant to AByC, can carry full fault current

Safety 

Standards IeC 60079, IeC 60726

Mechanical 

Protection degree 

IP21

Connections input/output 

6mm

2  

max.

Cable gland entry 

22mm

Dimensions (hxWxD) 

510x330x150

Mounting holes 

M10

Weight 

25.0 kg

enclosure construction 

Steel sheet metal

Surface finishing 

RAL9003 structure powder coating

Optional:  

It is recommended to install a GFCI/RCD in the AC input line.

article nr. 000000000  

Replacement cover WP-GI with DIN-rail mount

article nr. 000000000  

Ground fault circuit interrupter (GFCI/RCD) and circuit breaker 20A

article nr. 000000000  

Ground fault circuit interrupter (GFCI/RCD) and circuit breaker 40A

C

2

3

1

4

B

A

D

E

Material <not specified>

Material:

NAME

11-7-2012

J.R.

FINISH:

DRAWING:

TOLERANCE PRINCIPE ISO 8015

21-9-2012

Weight: 8.17 gram

-

SHEET 1 OF 1

SCALE:1:1

ARTICLE NO.

TITLE:

REVISION

DO NOT SCALE DRAWING

STATUS:

DATE

SIGNATURE

UNLESS OTHERWISE SPECIFIED:

CHAMFER SHARP EDGES

GENERAL TOLERANCE

NEN ISO 2768-m

FORM AND PLACE TOLERANCES 

NEN-ISO 1101

WELDING SYMBOL NEN EN 22553

ROUGHNESS ACC. to NEN3634

CHK'D

DRAWN

Phoenix

PRINTED

21-9-2012

M.B.

SHEET FORMAT:

PROJECTION : THIRD ANGLE UNITS : mm

A4

C

2

3

1

4

B

A

D

E

Material <not specified>

Material:

NAME

11-7-2012

J.R.

FINISH:

DRAWING:

TOLERANCE PRINCIPE ISO 8015

21-9-2012

Weight: 8.17 gram

-

SHEET 1 OF 1

SCALE:1:1

ARTICLE NO.

TITLE:

REVISION

DO NOT SCALE DRAWING

STATUS:

DATE

SIGNATURE

UNLESS OTHERWISE SPECIFIED:

CHAMFER SHARP EDGES

GENERAL TOLERANCE

NEN ISO 2768-m

FORM AND PLACE TOLERANCES 

NEN-ISO 1101

WELDING SYMBOL NEN EN 22553

ROUGHNESS ACC. to NEN3634

CHK'D

DRAWN

Phoenix

PRINTED

21-9-2012

M.B.

SHEET FORMAT:

PROJECTION : THIRD ANGLE UNITS : mm

A4

n

pe

l1

C

2

3

1

4

B

A

D

E

Material <not specified>

Material:

NAME

11-7-2012

J.R.

FINISH:

DRAWING:

TOLERANCE PRINCIPE ISO 8015

21-9-2012

Weight: 8.17 gram

-

SHEET 1 OF 1

SCALE:1:1

ARTICLE NO.

TITLE:

REVISION

DO NOT SCALE DRAWING

STATUS:

DATE

SIGNATURE

UNLESS OTHERWISE SPECIFIED:

CHAMFER SHARP EDGES

GENERAL TOLERANCE

NEN ISO 2768-m

FORM AND PLACE TOLERANCES 

NEN-ISO 1101

WELDING SYMBOL NEN EN 22553

ROUGHNESS ACC. to NEN3634

CHK'D

DRAWN

Phoenix

PRINTED

21-9-2012

M.B.

SHEET FORMAT:

PROJECTION : THIRD ANGLE UNITS : mm

A4

C

2

3

1

4

B

A

D

E

Material <not specified>

Material:

NAME

11-7-2012

J.R.

FINISH:

DRAWING:

TOLERANCE PRINCIPE ISO 8015

21-9-2012

Weight: 8.17 gram

-

SHEET 1 OF 1

SCALE:1:1

ARTICLE NO.

TITLE:

REVISION

DO NOT SCALE DRAWING

STATUS:

DATE

SIGNATURE

UNLESS OTHERWISE SPECIFIED:

CHAMFER SHARP EDGES

GENERAL TOLERANCE

NEN ISO 2768-m

FORM AND PLACE TOLERANCES 

NEN-ISO 1101

WELDING SYMBOL NEN EN 22553

ROUGHNESS ACC. to NEN3634

CHK'D

DRAWN

Phoenix

PRINTED

21-9-2012

M.B.

SHEET FORMAT:

PROJECTION : THIRD ANGLE UNITS : mm

A4

n

pe

l2

C

2

3

1

4

B

A

D

E

Material <not specified>

Material:

NAME

11-7-2012

J.R.

FINISH:

DRAWING:

TOLERANCE PRINCIPE ISO 8015

21-9-2012

Weight: 8.17 gram

-

SHEET 1 OF 1

SCALE:1:1

ARTICLE NO.

TITLE:

REVISION

DO NOT SCALE DRAWING

STATUS:

DATE

SIGNATURE

UNLESS OTHERWISE SPECIFIED:

CHAMFER SHARP EDGES

GENERAL TOLERANCE

NEN ISO 2768-m

FORM AND PLACE TOLERANCES 

NEN-ISO 1101

WELDING SYMBOL NEN EN 22553

ROUGHNESS ACC. to NEN3634

CHK'D

DRAWN

Phoenix

PRINTED

21-9-2012

M.B.

SHEET FORMAT:

PROJECTION : THIRD ANGLE UNITS : mm

A4

C

2

3

1

4

B

A

D

E

Material <not specified>

Material:

NAME

11-7-2012

J.R.

FINISH:

DRAWING:

TOLERANCE PRINCIPE ISO 8015

21-9-2012

Weight: 8.17 gram

-

SHEET 1 OF 1

SCALE:1:1

ARTICLE NO.

TITLE:

REVISION

DO NOT SCALE DRAWING

STATUS:

DATE

SIGNATURE

UNLESS OTHERWISE SPECIFIED:

CHAMFER SHARP EDGES

GENERAL TOLERANCE

NEN ISO 2768-m

FORM AND PLACE TOLERANCES 

NEN-ISO 1101

WELDING SYMBOL NEN EN 22553

ROUGHNESS ACC. to NEN3634

CHK'D

DRAWN

Phoenix

PRINTED

21-9-2012

M.B.

SHEET FORMAT:

PROJECTION : THIRD ANGLE UNITS : mm

A4

n

l2

pe

l1

Galvanic Isolation-transformer

WP-GI

Whisper Power Galvanic 

Isolation-transformer

Transformer for safety and hull protection to prevent corrosion

115

230VAC

230VAC

SHORE

PE

N

L

PE

N

L

SHIP

115

115

115

Power
Protect

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