Encapsulated Transformers (NEMA 3R Rated)

HPS Fortress industrial power transformers from Hammond provide an innovative design that is ideal for commercial 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 eliminate corrosion and deterioration. The NEMA 3R rating allows these potted transformers to be used as indoor / outdoor transformers.

480V transformers and 60Hz transformers are among the most popular models offered. Some general purpose transformer models have also been added.

Superior Quality and Value

• Inexpensive encapsulated transformers
• Compact, efficient design
• Easy installation and hook-up, wall mounting
• Superior quality in materials and workmanship
• NEMA 3R rated encapsulated power transformer (for indoor/ outdoor use)
• Transformer sizes range from 100VA to 25kVA
• Input voltage ranges from 120 to 480 VAC
• Output voltages of 240 and 120 VAC
• 10 year warranty (limited to manufacturer defects)

• Ratings: Single phase from 0.50kVA to 25kVA; 60 Hz
• UL class 130°C (266°F) insulation, 95°C (203°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.
• UL Listed File No. E50394 (Type Q); CSA File No. LR3902 (Type Q)
• CE (up to 10 kVA)
• C1F***LE Series power transformer prices start at: $100.00 (C1FC50LE)

• Ratings: Single phase from 100VA to 5kVA;60 Hz
• 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.
• UL Listed File No. E50394 (Type Q); CSA File No. LR3902 (Type Q)
• CE
• C1F***WE Series encapsulated transformer prices start at: $82.00 (C1FC10WE)

• Ratings: Single phase from 0.25kVA to 5kVA; 50/60 Hz**
  (The primary voltage ratio of 240 or 480 is available at 60Hz only with a secondary voltage of approximately 130/262V)
• UL class 130°C (266°F) insulation, 95°C (203°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.
• UL Listed File No. E50394 (Type Q); CSA File No. LR3902 (Type Q)
• CE
• C1F***XE Series transformer prices start at: $109.00 (C1FC25XE)