15 kVA Isolation Transformer, 60Hz White Hot Picks

Hubbell HBL50AITW is a 15 kVA, 60 Hz marine isolation transformer with a white powder-coated steel enclosure, designed for 50 amp shore power systems to help provide clean, safe onboard power and reduce stray current risk.

The Hubbell HBL50AITW Marine Isolation Transformer is built for marine shore power applications where proper electrical isolation, safety, and corrosion-resistant construction are critical. Designed for 50 amp shore power systems, this 15 kVA transformer helps assure proper wiring conditions on the boat and greatly minimizes the possibility of stray current entering the water.

This model is UL listed and CSA certified, with a compact, vibration-resistant design made specifically for the marine industry. It uses shielding for cleaner power and an encapsulated, completely enclosed construction that seals the core and coil against moisture and air. The HBL50AITW comes in a white powder-coated steel enclosure and is part of Hubbell Marine’s UL listed isolation transformer lineup.

Key Features

• 15 kVA marine isolation transformer
• Designed for 50 amp shore power systems
• 60 Hz model
• White powder-coated steel enclosure
• UL listed and CSA certified
• UL Type 3R enclosure for indoor or outdoor service
• Shielded for cleaner power
• Encapsulated and completely enclosed design
• Helps seal out moisture and air
• Helps reduce corrosion and insulation deterioration
• Vibration-resistant design
• Quiet operation with sound levels below NEMA standards
• Two full current-carrying shields
• 12.5% taps
• Exceeds ABYC 4000 volt HIPOT test requirement
• Made for the marine industry by Hubbell Marine

Technical Specifications

• Brand: Hubbell Marine
• Catalog Number: HBL50AITW
• Product Type: Marine isolation transformer
• Power Rating: 15 kVA
• Frequency: 60 Hz
• Shore Power System Type: 50 amp
• Enclosure Color / Material: White powder-coated steel
• Weight: 170 lb
• Height: 16.94 in
• Width: 14.12 in
• Depth: 11.59 in
• Certifications: UL listed, CSA certified
• Enclosure Type: UL Type 3R
• Insulation System: UL class 155°C insulation system
• Design: Encapsulated core and coil with electrical-grade silica and resin compounds

Applications

• Marine shore power isolation
• 50 amp boat shore power systems
• Yacht and boat electrical systems
• Reducing stray current risk in marina environments
• Improving onboard power isolation
• Indoor or outdoor marine electrical installations

Ideal For

• Boat owners upgrading shore power safety
• Marine electricians
• Yacht builders and refit specialists
• 50 amp shore power installations
• Vessels requiring a 15 kVA marine isolation transformer
• Applications where clean, isolated onboard power is required

Protection Features

• Helps minimize stray current entering the water
• Shielded design for cleaner power
• Encapsulation helps seal out moisture and air
• Enclosed construction helps reduce corrosion and insulation deterioration
• Vibration-resistant construction for marine use
• UL Type 3R enclosure for indoor or outdoor service

System Compatibility

• Suitable for 50 amp marine shore power systems
• Suitable for 60 Hz electrical systems
• Designed for marine isolation transformer applications
• Use HBL50AITSS if a 15 kVA 60 Hz #316 stainless steel version is required
• Use Hubbell 25 kVA models for 100 amp shore power applications where required

Check Before Ordering

• Confirm your shore power system requires a 15 kVA isolation transformer.
• Confirm your system is a 50 amp shore power installation.
• Confirm 60 Hz operation is correct for your vessel and location.
• Confirm the white powder-coated steel enclosure is suitable for your installation environment.
• Verify the 16.94 in H x 14.12 in W x 11.59 in D dimensions and 170 lb weight fit your mounting location.
• Confirm installation clearance, ventilation, mounting support, and access before ordering.
• Installation should be performed by a qualified marine electrician following applicable ABYC, UL, marina, and local electrical requirements.