Page last updated Apr 2, 2022 @ 12:20pm

TWB Manual Transfer Switch

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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.

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

ALERT: As of April 2022 the 60 Amp breakers for these panels have not been available for months. And it is unknown when they will be available again. If you need prompt shipping of your order avoid ordering this panel containing any 60A breakers.


Specs & Model Numbers
Eligible discounts will be deducted by cart!
Prices last updated 4/30/2022
Shipping weights start at 38 lbs.
These items normally ship in approximately 2 weeks or less.

Model No. Utility Breaker Input (amps) Generator Breaker Input (Amps) Max. Generator Input (Watts) Works With Price
$ US
Add to Shopping Cart
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 $463

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 $463

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 $470

TWB1506DR 150 60 15,000 hi cap inlet 300134-1

metering METERPNL4
or NGV25

TWB2006DR 200 60 15,000 $474

TWB1510DR 150 100 24,000 $526

TWB2010DR 200 100 24,000 $505

TWB1512DR 150 125 30,000 $590

TWB2012DR 200 125 30,000 $569


Are YOU ready for the next power outage?

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