Page last updated

120V series
104B1, 304A1, 306A1

RelianceControls-306A1.jpg (129371 bytes)   
click on thumbnail image above to enlarge
(306A1 shown)

Manual Transfer Switches
15-30 Amps, 4-6 circuits, 125V

PRO/TRAN® 2 by Reliance Controls

Reliance Controls Corporation is pleased to announce our next generation of manual transfer switches. The new PRO/TRAN®2 line of Loadside™ switches features all of the benefits which made the original Pro/Tran® an industry leading product for over 30 years, while incorporating a number of new features to give our customers exactly what they are looking for.

®2 utilizes conventional 1-inch interchangeable circuit breakers. All models are UL Listed for all popular brands and types of breakers, including AFCI and GFCI. They can be easily re-configured in the field for multiple double pole circuits if needed. All models also include a hinged non-metallic protective cover which also provides a finished appearance. Optional new color-coded watt meters are included on many models, and assist in balancing the generator load. Like all Reliance Pro/Tran® transfer switches, the PRO/TRAN®2 is completely prewired for fast installation.

®2 Series is UL Listed to UL Standard 1008 and is suitable for use in accordance with article 702 of the National Electrical Code ANSI/NFPA 70.



Model 104B1 304A1 306A1
Total Capacity 1,875 watts, 15 amps 3,750 watts, 30 amps 3,750 watts, 30 amps
Max Single Pole Circuits - 120VAC (4) 15 amp (4) 15 amp (6) 15 amp
Max Double Pole Circuits - 240VAC none none none
Generator Inlet Connection NEMA 5-15 male
inlet plug-in
NEMA L5-30P male
inlet plug-in
NEMA L5-30P male
inlet plug-in
Generator Load Watt Meter No Yes (1) Yes (1)
Enclosure Type indoor surface mounted indoor surface mounted indoor surface mounted
Flex Conduit Included 16 inch pre-wired 16 inch pre-wired 16 inch pre-wired
UL Listing / CSA certified UL1008
Origin Made in USA
Warranty Reliance Controls 24 month warranty


Ordering Table

Specs & Model Numbers

Model No. Breakers
Inlet for
Inlet Box
& Cordset
$ US
Order Button
104B1 (4)15A-1P No Yes No
304A1 (4)15A-1P Yes Yes No
306A1 (6)15A-1P Yes Yes No