ISO-PUCK 400 VA / 60Hz Medical Isolation Transformer
The ISO-PUCK 400VA medical isolation transformer is a compact, high-performance solution designed for smaller medical devices, single-instrument applications, and space-constrained clinical environments.
Built with a toroidal core and electrostatic shielding, the IP400/60 delivers reliable isolated power with excellent leakage current performance and low electromagnetic interference in a small, lightweight package.
Key Specifications – ISO-PUCK 400 VA / 60Hz
- Power Rating: 400 VA / 3.3 A @ 60 Hz
- Input / Output Voltage: 120V primary and secondary (standard); fully customizable 120/240V, dual-primary, and international voltage configurations available
- Frequency: 60 Hz (50/60 Hz designs available across the ISO-PUCK line)
- Enclosure: Polycarbonate, white – 5¾” diameter × 2¾” depth
- Weight: Approximately 13 lbs
- Thermal Protection: Available via custom configuration
- Input/Output: Custom cord lengths, NEMA 5-15P plug (standard), hospital-grade receptacles, and other plug/receptacle options available
- Core Technology: Toroidal with electrostatic shielding for minimal leakage current and low stray magnetic field
- Certifications: UL Recognized, INTERTEK (ETL) Certified, designed to meet IEC 60601-1 / UL 60601-1 medical standards
- Origin: Designed, wound, and assembled in Shelton, Connecticut, USA
Toroidal Design Benefits for Medical Use
Toroidal transformers provide meaningful advantages over traditional EI-core designs in medical settings, including lower electromagnetic interference, quieter operation, higher efficiency, smaller size and weight, and improved leakage current control. The electrostatic shield between windings helps keep patient leakage current well below 100 µA under normal conditions.
Medical-Grade Compliance & Patient Safety
This model supports compliance with:
- IEC 60601-1 and UL 60601-1 leakage current requirements
- NFPA 99 guidelines for patient care areas
- Hospital-grade electrical safety standards
Ideal Applications
- Single dental instruments and smaller delivery systems
- Compact medical devices and diagnostic equipment
- Space-constrained clinical environments
- Medical OEM integration where size and weight are critical
- Any application requiring reliable medical-grade isolation in a compact form factor
Full Customization Options
Bridgeport Magnetics builds every ISO-PUCK to your exact specifications. For the 400VA model you can request:
- 120V or 240V primary/secondary configurations
- Custom cord lengths and hospital-grade plugs/receptacles
- Multiple output receptacles or hardwired options
- Specific mounting hardware
- Additional thermal protection or monitoring features
- Lead and connection configurations for OEM equipment
Most custom units ship in 1–2 weeks.
Need a 400VA medical isolation transformer configured for your exact voltage and application? Contact our engineers at (203) 954-0050 or request a quote. We’ll help you specify the right solution for safety, compliance, and performance.









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