WFCO T-30 User manual

Operator’s Manual
Distributed in the U.S.A. and Canada by
ARTERRA DISTRIBUTION
[phone]
Warranty: [email protected]
Fax [phone]
www.wfcoelectronics.com Power PROs Technical Support
[phone]
WF-9900 Series
Transfer Switches
T-30 & T-57R
T-30 T-57R

SAFETY INFORMATION ........................................................................................................... 3
GENERAL INFORMATION
Transfer Switch Features ............................................................................................................... 4
T-30 INSTALLATION INSTRUCTIONS .................................................................................. 4
T-57R INSTALLATION INSTRUCTIONS ............................................................................... 6
TROUBLESHOOTING INSTRUCTIONS ............................................................................ 7
GENERAL COMPLIANCE INFORMATION
Agency Listings ............................................................................................................................... 8
SPECIFICATIONS ............................................................................................................................ 8
WARRANTY INFORMATION ..................................................................................................... 9
TABLE OF CONTENTS
2

3
GENERAL INFORMATION
e WFCO Transfer Switches are designed to provide trouble-free changeover of power between
shore power and generator. e T-30 is used for 30 Amp AC service, T-57R is used for 50 Amp
AC service.
e DC coiled relays used in the transfer switches prevent AC “chatter” noise and drop-out in
low-voltage conditions. Accidental coupling of power to or from the shore line and generator is
prevented by a “break before make” conguration. Both the T-30 and T-57R mount easily onto
a at surface and are engineered for safe, reliable performance. e T-30 can also mount to the
back of the WF-8900 power center enclosure, saving wall space.

Transfer Switch Features
Shore Power to Generator Power Transfer Time Delay
Time delay (30 sec. nominal) allows gensets to complete self-diagnostics before power is
transferred.
“Break Before Make” Conguration
WFCO’s “break before make” conguration prevents accidental coupling of power
between the shore-line and generator.
Shore Power is Always Available
Shore power is always available (Pass-rough) without having to energize the relays.
Easy Ground Lug Accessibility
Easy ground lug accessibility is built-into the T-57R.
Two Mounting Possibilities (T-30 Only)
Can be mounted to the back of a WF-8900 Power Center or wall mounted with the
included mounting brackets.
T-30 INSTALLATION INSTRUCTIONS
Installing the T-30 Transfer Switch
Refer to the diagram below.
Make sure no AC power is coming into the RV from either the Shore Power cord or an
on-board generator.
4
Figure 1

5
e T-30 transfer switch installation is divided into 3 segments:
1. Incoming shore power
2. Incoming generator power
3. Power output to panel (distribution panel or power center)
Remove the top cover with a Phillips screwdriver to expose the wiring box.
Note: All cables from Shore Cord, Generator and Control Panel routed to or from the T-30
Transfer Switch should go through a strain relief (customer supplied) to keep cables from being
pulled out of the transfer switch enclosure.
To install the T-30 transfer switch follow the steps below:
Incoming Shore Power:
1. Connect the black wire from the shore cord to the black wire on transfer switch marked
Shore.
2. Connect the white wire from the shore cord to the white wire on transfer switch marked
Shore.
3. Connect the ground (copper) wire from the shore cord to the ground bar on transfer switch
marked equipment ground.
Incoming Generator Power:
4. Connect the black wire from the generator to the black wire on transfer switch marked
Generator.
5. Connect the white wire from the generator to the white wire on transfer switch marked
Generator.
6. Connect the ground (copper) wire from the shore cord to the ground bar on transfer switch
marked equipment ground.
Power Output to Panel:
7. Connect the black wire from the Distribution Panel to the black wire on transfer switch
marked Panel.
8. Connect the white wire from the Distribution Panel to the white wire on transfer switch
marked Panel.
9. Connect the ground (copper) wire from the Distribution Panel to the ground bar on transfer
switch marked equipment ground.
Final Assembly:
10. Slide the wiring box cover over the internal wire connections and tighten with one Phillips
screw in the center.
11. Install the two mounting brackets. For power center mounting, position the brackets so the
right-angle tabs face away from the from the enclosure and fasten with 2 screws on each side.
Remove the 2 screws from the top rear of the WF-8900 enclosure. Slide the T-30 as-sembly
down over the mounting rails on the WF-8900 enclosure and push down until the right-angle
portion of the bracket stops movement. Fasten the T-30 in place with the 2 screws removed
earlier.
Wall Mounting (T-30WM Model)
Place the brackets so that the small right-angle tabs face inward and attach with 2 Phillips screws
on each side. Fasten to the wall with 2 fasteners through each bracket (fasteners not supplied).
Note: Fasteners must be able to safely support a 5 lb minimum load.

6
Note: Note: All eld connections should be made using 10 AWG (min.) solid or stranded
copper wire rated 75°C (167°F) minimum. Torque Ground bar terminals to 35 in-lb
maximum. Caution: over torquing will cause screw and wire damage.
When removing the T-30 Transfer Switch, reverse the order of steps 1 through 11.
T-57R INSTALLATION INSTRUCTIONS
Installing the T-57R Transfer Switch
Make sure no AC power is coming into the RV from either the Shore Power cord or an
on-board generator.
Refer to the T-57R drawing (Figure 2) below for help.
T-57 Installation:
e T-57 transfer switch is divided into 3 segments:
1. Incoming power cord
2. Incoming generator power
3. Power output to panel (distribution panel or power center)
Remove the top cover to expose the wiring box and terminal strip. Secure the enclosure in a
suitable location using a screw at each of the mounting lug locations.
Note: All cables from Shore Cord, Generator and Control Panel routed to or from the T-57R
Transfer Switch should go through a strain relief (customer purchased) to keep cables from
being pulled out of the transfer switch enclosure.
Figure 2

To install the T-57 transfer switch follow the steps below:
Incoming Shore Power:
1. Connect the black wire from the shore cord to the L1 position on transfer switch marked
Power Cord.
2. Connect the white wire from the shore cord to the Neutral position on transfer switch
marked Power Cord.
3. Connect the red wire from the shore cord to the L2 position on transfer switch marked
Power Cord.
4. Connect the ground (copper) wire from the shore cord to the ground block on transfer
switch below that segment.
Incoming Generator Power:
5. Connect the black wire from the generator to the L1 position on transfer switch marked
Generator.
6. Connect the white wire from the generator to the Neutral position on transfer switch
marked Generator.
7. Connect the red wire from the generator to the L2 position on transfer switch marked
Generator.
8. Connect the ground (copper) wire from the generator to the ground block on transfer
switch next to that segment.
Power Output to Panel:
9. Connect the black wire from the Distribution Panel to the black wire L1 on transfer switch
marked Control Panel.
10. Connect the white wire from the Distribution Panel to the white wire (neutral) on
transfer switch marked control Panel.
11. Connect the red wire from the Distribution Panel to the red wire L2 on transfer switch
marked control Panel.
12. Connect the ground (copper) wire from the generator to the ground block on transfer
switch next to that segment.
Snap the cover in place on the enclosure to complete the wiring procedure.
Note: All eld connections should be made using 8 AWG (min.) solid or stranded copper
wire rated 75°C (167°F)minimum. Torque terminal strip lugs and Ground block terminals
to 35 in-lb maximum. Caution: over torquing will cause wire and screw damage.
When removing the T-57R Transfer Switch, reverse the order of steps 1 through 12.
TROUBLESHOOTING INSTRUCTIONS
Troubleshooting the T-30 & T-57R Transfer Switches
Refer troubleshooting to a qualied service technician. Contact the Power PROs at
877-294-8997 for assistance.
7

GENERAL COMPLIANCE INFORMATION
Agency Listings
UL (ETL)
e T-30 & T-57R Transfer Switches are ETL Certied to UL 1008 and CSA 22.2.
8
TRANSFER SWITCH SPECIFICATIONS

9
CONSUMER LIMITED WARRANTY
for WFCO Electronic Products
WFCO extends, to the original owner, a Two Year Limited Product Warranty. is
warranty is in eect from the date of original purchase for a period of two (2) years. is
limited warranty is extended specically for and is limited to Recreational Vehicle
application and is only valid within the continental United States, Alaska, Hawaii and the
Provinces of Canada. WFCO warrants, to the owner, that its products are free from defects
in material and workmanship under normal use and service based on its intended use and
function. is warranty is limited to the repair or replacement, at WFCO’s discretion, of any
defective parts or defective assembly. Any implied warranties of merchantability or tness
for intended use are limited in duration unless applicable State Law provides otherwise. You
may have other rights as specied by each individual state.
EXCLUSIONS and LIMITATIONS
e OEM warranty specically does not apply to the following:
• Any WFCO product that has been repaired or altered by an unauthorized person;
• Any damage caused by misuse, faulty installation, testing, negligence, accident or any
WFCO product installed in a commercial vehicle;
• Any WFCO product, whose serial number has been defaced, altered or removed;
• Any WFCO product, whose installation has not been in accordance to the WFCO
written instructions;
• Any consequential damages arising from the loss of use of the product including but not
limited to: inconvenience, loss of service, loss of revenue, loss or damage to personal
property, cost of all services performed in removing or replacing the WFCO product.
Specications are subject to change without notice or obligation.
• Any WFCO Electronics products sold through unauthorized Internet sources
(Example: eBay) will be excluded from all warranty coverage oered by Arterra
Distribution / WFCO.
CONSUMER WARRANTY CLAIM PROCEDURE
Upon determination and validation by an authorized OEM dealer that a WFCO product has a
defect, visit www.wfcoelectronics.com to obtain the warranty request forms. Completed forms
may be sent to [e-mail]. You may also contact the WFCO Warranty
Service Number at [phone] and obtain a return goods authorization (RGA) number.
is number shall appear on all correspondence with warranty service. Upon validation of the
warranty, WFCO shall replace or repair the product with a like product. e RGA number
shall be placed on the outside of the carton used to return the product for ease of
identication. Do not mark directly on the product. e product must be packaged properly
to avoid further product damage which could cause a non-warrantable condition.
WARRANTY ASSISTANCE
e consumer may contact the selling Dealer or OEM for warranty assistance.
e consumer may also contact Arterra Distribution, exclusive distributor to WFCO
Products at: [phone] or Fax [phone].

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Figure 3
T-30 Transfer Switch Dimensional Drawing

11
T-57R Transfer Switch Dimensional Drawing
Figure 4

WFCOELECTRONICS.COM