Hammond WE series commercial encapsulated transformers are filled with electrical grade silica and resin compounds that fully surround the core and coil to seal out moisture. With completely enclosed NEMA 3R housings suitable for indoor/outdoor use, these 1-phase units offer a 277/240/208/120 VAC primary to 240x120 VAC secondary configuration in a range of kVA ratings.
C1F***WE Series Encapsulated Transformers (NEMA 3R Rated)
(input voltage): 277/240/208/120 VAC
Secondary (output voltage): 240 x 120 VAC
HPS Fortress™ Commercial Encapsulated Transformers
HPS Fortress commercial encapsulated transformers from Hammond
provide an innovative design that is ideal for industrial
applications where quality, ease of installation, and low cost are
key. All Fortress units are encapsulated power transformers with
electrical grade silica sand and resin compounds, which completely
enclose the core and coil to seal out moisture, airborne
contaminants and eliminates corrosion and deterioration. The NEMA
3R rating allows these potted transformers to be used as indoor/
Quality and Value
Inexpensive encapsulated power transformers
Compact, efficient design
Easy installation and hook-up, wall mounting
Superior quality in materials and workmanship
NEMA 3R rated commercial potted power transformers (for
indoor/ outdoor use)
10 year warranty (limited to manufacturer defects)
HPS Fortress C1F***WE
Series power transformers are priced from $84.50 (C1FC10WE)
Single phase from 100VA to 5kVA; 60 Hz
Standard on all single phase units over 0.75kVA
All power transformer units are encapsulated with
electrical grade silica sand and resin compounds which
completely enclose the core and coil to seal out moisture,
airborne contaminants and eliminate corrosion and deterioration.
Offering UL class 130°C (266°F) insulation, 80°C (176°F)
temperature rise up to 1kVA on single phase; 180°C (356°F)
insulation, 135°C (275°F) temperature rise on all units over
1kVA on single phase.
Quiet operation with sound levels below NEMA standards.
NEMA 3R enclosures meet or exceed listing criteria
including NEMA, ANSI, and OSHA standards for indoor and outdoor
Rear and side entry into an easily accessible and roomy
Color is ANSI 61 gray, UL50
Provides tinned copper lead wire terminations and
standard ground lug assembly for easy cable installation.
Taps are convenient to select output voltage
Output voltage adjustable by taps
Temperature Range: -20°C (-4°F) to 40°C
Installation made quick and easy:
All encapsulated transformers are designed for wall
mounting and include keyhole mounting slots.