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TWB Manual Transfer Switch

RelianceControls-TWBdr-new.jpg (10750 bytes) RelianceControls_TWB-ko.jpg (38623 bytes) Conf-b6-twb.gif (17066 bytes)
without meters knockout details and wiring diagram connection configuration B6
click on thumbnail image above to enlarge

Manual Transfer Switch
(consists of 2 breakers with handle interlock,
4 spaces for branch breakers, feed-thru lugs, meters)

Economical Panel/Link switches.  Supplied with a double pole utility breaker and a double pole generator breaker that are interlocked to prevent both from being closed at the same time.  This eliminates the danger of backfeeding to the utility, endangering utility repair crews.  It also prevents utility power from feeding into your generator and causing damage.

This TWB Series

Standard features include NEMA 3R outdoor cabinet suitable for surface mounting, knockouts and hub provision for hard wiring and UL Listing.  Service entrance rated which allows this to be connected directly to your power company meter.  Provided with preinstalled main generator, 150 or 200 amp main utility breaker, with feed-thru lugs for connecting your load wiring.  Also includes space for 4 to 8 single pole branch breakers or 2 double pole branch breakers.  Meters for monitoring generator loading must be ordered separately and mounted external to this panel.  Order inlet separately.  Made in USA  

Available with up to two optional factory installed branch breakers (can be used to feed out-buildings) and top entry conduit hub.  Select using drop-down menus below when ordering.

Siemens-Q220.jpg (43525 bytes)    Siemens-HS200.jpg (4696 bytes)


Dimensions H x W x D (inches): 27 x 14.25 x 4.5


Specs & Model Numbers

Model No. Utility Breaker Input (amps) Generator Breaker Input (Amps) Max. Generator Input (Watts) Works With Price
$ US
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TWB1502DR 150 20 5,000 inlet boxes PB20 PBN20 PR20 or PK20

gen cords PC2010M PC2020M PC2040M

meter MB75 NGV25
TWB2002DR 200 20 5,000
TWB1503DR 150 30 7,500 inlet boxes PB30 PBN30 PR30 or PK30

gen cords PC3010M PC3020M PC3025M PC3040M

meter MB75 NGV25
TWB2003DR 200 30 7,500
TWB1505DR 150 50 12,500 inlet boxes PB50 PBN50 PR50 or PK50

gen cords PC5010 PC5025 PC5050

meter MB125 NGV25
TWB2005DR 200 50 12,500
TWB1506DR 150 60 15,000 hi cap inlet 300134-1

metering METERPNL4
or NGV25
TWB2006DR 200 60 15,000
TWB1510DR 150 100 24,000
TWB2010DR 200 100 24,000
TWB1512DR 150 125 30,000
TWB2012DR 200 125 30,000
Order Options Below
Provisions for one top-entry hub per TWB.  Provisions for up to two branch breakers per TWB.
These branch breakers can also be factory installed in TRB panels.
Model No. Description Price
$ US
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ECHS150 Conduit Hub - Siemens type HS 1.5 inch aluminum
ECHS200 Conduit Hub - Siemens type HS 2.0 inch aluminum