PG LifeLink's new Mobile Isolated Power System (MIPS) provides a flexible solution for temporary and supplemental isolated power needs.
Isolation Panel Series
Our Isolated Power Panels Series is designed to meet your project needs:
- Plus Series: Introduced in 2023, our latest line of isolated power panels is designed to support the needs of today's operating room environments, including options such as a standard 120V panel, a duplex panel, a dual voltage panel, and a laser isolated power panel.
- Slim Series: Introduced in 2018, these two configurations feature compact backbox sizes, making them an ideal choice for projects where space is limited.
- Legacy Series: Explore information about our discontinued panels for reference purposes or to match existing installations.
Plus Series Isolated Power Panels
PG LifeLink's next generation of Isolated Power Products, Plus Series, accommodates hospital isolated power needs of the future.
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Slim Isolated Power Panels
Specialty panels offer smaller panel sizes for increased space in the operating room.
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Legacy Isolated Power Panels
PG LifeLink's Standard Isolated Power Panels are a great choice if you need to match an existing installation where panel depth & size…
Learn MoreCommon Components of an Isolated Power Panel
PG LifeLink's commitment to quality and safety is reflected in the design and components incorporated in our isolated power panels. All Plus Series panels are assembled in the USA and include the following standard components:
- Top-mounted hospital-grade transformer
- Digital SafeDetec (LIM)
- Interior chassis engineered to specification, fully factory-assembled, and 100% tested
- Heavy-duty galvanized steel back box designed for flush mounting
- Stainless steel front trim panel with fully hidden hinged door
Panel Code Compliance
PG LifeLink Isolated Power Panels are designed, built, and tested in accordance with the following:
- NEC 517.160 (Isolated Power Systems) and NFPA 99 (Health Care Facilities Code)
- UL 1047, UL 1022, UL 50
- CSA C22.1 Part 1, and CSA C22.2 No. 204
- IBC (2012), AC156 (2010), ASCE 7-10
- HCAI (California Department of Health Care Access and Information), OSP-0210-10
Every PG LifeLink Isolated Power Panel is engineered to satisfy NEC Article 517.160, which governs isolated power systems in wet procedure locations such as operating rooms, and NFPA 99, the Health Care Facilities Code that classifies operating rooms as wet procedure locations by default. This dual compliance gives engineers, contractors, and facility managers confidence that our panels meet the electrical safety standards required for critical care environments.
Additional Features
- SafeDetec, a new generation all-digital line isolation monitor
- Fault Location System option that identifies the branch circuit of a detected fault on the screen of the Line Isolated Monitor
- Branch circuit load monitoring option that gives hospital personnel notice of a power hazard
- System load monitoring
- Transformer temperature monitoring
- PGL Device Network Gateway to monitor procedure room devices from anywhere
- New touchscreen Master Remote Annunciator compatible with Device Network Gateway
- New panel configurations to accommodate these new features at the time of installation or possible future upgrades
- New customizable communication capability to monitor, report, and communicate to meet a wide variety of facility needs
For healthcare facilities looking to enhance safety and monitoring, PG LifeLink also offers a complete range of LIM Kits that integrate seamlessly with isolated power panels, providing continuous oversight of Total Hazard Current and protection against line-to-ground faults. Additionally, the SafeDetec LIM system adds advanced digital monitoring and fault detection, ensuring real-time alerts and maximum safety for patients and staff while maintaining code compliance in medical environments.
How to Properly Size the Primary Main Circuit Breaker
To ensure proper protection of PG LifeLink Isolated Power Systems, it's critical to select the correct Primary Main Circuit Breaker rating based on transformer size and input voltage. The table to the right outlines our standard recommendations, based on UL 1047 and best practices derived from NFPA 70 (NEC Article 517) and NFPA 99.
Consider Inrush Current
Isolated power transformers are inductive loads and can experience inrush currents up to 10x the rated FLA at energization. This surge may last up to a full second. To protect upstream equipment and avoid nuisance tripping:
- Upstream feeder breakers should be sized 10-20 A higher than the main isolated power panel breaker
- Use breakers with adjustable instantaneous trip delay
Primary Main Circuit Breaker Trip Rating
| Primary Voltage | |||||||
| 480 | 277 | 240 | 220 | 208 | 120 | ||
| kVA |
3 |
15 | 20 | 20 | 20 |
35 |
|
| 5 | 15 | 25 | 30 | 30 | 30 |
60 |
|
| 7.5 | 20 | 35 | 40 | 45 | 50 | 80 | |
| 10 | 30 | 50 | 60 | 60 | 60 | 100 | |
| 15 | 40 | 70 | 80 | 90 | 90 | 150 | |
| 25 | 70 | 125 | 150 | 150 | 150 | ||
Importance of Proper Breaker Sizing in Hospital Isolated Power Systems
Correctly sizing the primary and upstream breakers in an Isolated Power System ensures:
- Reliable power continuity in critical care environments
- Full code compliance with NEC Article 517, NFPA 99, and UL 1047
- Protection against transformer inrush surges and nuisance tripping
At PG LifeLink, we've designed our panels and breaker recommendations to meet the highest standards in isolated power, ensuring your project stays safe, code-compliant, and installation-ready.
Download the complete Design & Installation Guidelines for additional sizing charts, wiring recommendations, and best practices.
Need Help? Explore Our Resources
Ready to Spec or Replace an Isolated Power Panel?
Whether you're designing a new operating room or replacing an aging or discontinued panel, PG LifeLink's engineering team can help you select the right isolated power panel for your project. Request a quote, build a panel with our online configurator, or ask our team a question to get started today.
Frequently Asked Questions
What is an isolated power panel?
An isolated power panel is a listed electrical distribution panel that uses an isolation transformer to create an ungrounded power system. It protects patients and staff from electric shock in hospital operating rooms and other wet procedure locations by limiting ground-fault current without interrupting power to critical equipment.
What is the difference between an isolated power panel and a line isolation monitor?
An isolated power panel is the complete enclosure containing the isolation transformer, wiring, and monitoring components, while the line isolation monitor (LIM) is a single component inside the panel. The LIM continuously measures total hazard current and alerts staff to a line-to-ground fault without shutting off power.
What codes govern isolated power panels in medical facilities?
Isolated power panels for medical facilities must meet NEC Article 517.160, which sets requirements for isolation transformers, line isolation monitors, and branch circuit wiring, and NFPA 99, the Health Care Facilities Code. PG LifeLink panels are also listed to UL 1047, UL 1022, and UL 50 for added assurance.
How do I size the primary breaker for an isolated power panel?
The primary main circuit breaker should be sized based on the isolation transformer's kVA rating and input voltage, following UL 1047 and NEC 517/NFPA 99 guidance. Because isolation transformers can draw inrush current up to 10x rated FLA, upstream feeder breakers should be sized 10-20A higher with adjustable instantaneous trip delay.