For critical facilities; hospitals, data centers, public safety buildings, and more; maintaining minimal interruption in power isn’t just a convenience; it’s a requirement. And with the National Electrical Code NEC 700.3(F) updated in recent years, code compliance now requires more than just having backup power in place. It demands the ability to test and maintain emergency power systems without risk of service interruption.
RONK’s POWERTRON ATS (Automatic Transfer Switch) or POWERTRON Generator Tap Box ATS lines are essential in a multi-component system. Adding a POWERTRON MTS Series Tap Box will allow for full NEC 700.3(F) compliance.
The National Electrical Code (NEC) is updated every three years, and Section 700.3(F) was introduced in response to real-world needs around maintaining emergency systems.
Here’s what it says in simple terms:
“Where the emergency system relies on a single generator, a means shall be provided for the connection of a temporary alternate power source for maintenance or repair of the generator.”
In other words: If your facility depends on one generator for emergency power, you must have a way to connect a temporary source (like a rental generator) during downtime, without disrupting service to your critical loads.
That means simply wiring up a backup generator isn’t enough. You need a safe, fast, and code-compliant way to transfer load, ensure safety for operators, and minimize service disruption. This is where the right transfer switch becomes essential.
Failing to comply with NEC 700.3(F) isn’t just a safety issue; it’s a liability. Facilities that undergo inspection or certification (such as hospitals or public institutions) risk failed inspections or even shutdowns if they’re not equipped to meet the code.
POWERTRON MTS units are engineered specifically to meet this requirement, offering dual-purpose functionality that supports both permanent and temporary power sources.
Maintenance on a generator should never mean cutting power to life-sustaining systems, IT infrastructure, or communication networks. With POWERTRON MTS, operators can safely connect a temporary generator to carry the load while servicing the main unit; no downtime, no disruption.
Emergencies don’t wait for scheduled maintenance. Being able to switch to a temporary source on the fly is a critical advantage that keeps operations running under any condition, from natural disasters to scheduled maintenance windows.
RONK’s POWERTRON Solutions are engineered to deliver more than just code compliance; they offer superior performance, unmatched reliability, and the trusted durability you expect from a company with 75 years of power expertise.
Every POWERTRON is designed with NEC 700.3(F) in mind. These switches include provisions for connecting a temporary generator in a safe and user-friendly way, satisfying the code’s requirement for a backup-to-the-backup system.
Using a POWERTRON ATS as the transfer equipment with a POWERTRON MTS Series Tap Box as the switching/interlock component allows the temporary power to be connected and manually isolated during maintenance and repairs.
For decades, RONK has been the go-to name in single phase to three phase conversion, manual and automatic transfer solutions, and custom-engineered enclosures. With POWERTRON, It’s not just another product, it’s the next step in solving real-world problems.
POWERTRON units are trusted by contractors and facilities managers across the country for their quality, consistency, and field-ready design.
Installation time matters. So does clarity. That’s why POWERTRON units feature clear wiring diagrams, generous working space inside the enclosure, and high-quality components. When every minute matters on a job site, RONK helps crews work smarter, not harder.
RONK is not just a product… It's a partner. Our customer support and engineering teams are available to help spec projects, answer installation questions, and ensure your facility stays compliant and operational.
While NEC 700.3(F) applies broadly to emergency systems, POWERTRON is an excellent fit for:
Each of these settings demands uptime, reliability, and the ability to perform routine maintenance without risk to ongoing operations. POWERTRON delivers all of that and more.
Maintenance is a fact of life. But with POWERTRON, it no longer means taking your facility offline. That alone can translate into thousands of dollars saved, not to mention preserved operational integrity.
All POWERTRON systems are built with safety first, featuring secure housing, proper labeling, and easy-access connection points for temporary generator hookups. This makes it safer for technicians and reduces the chance of costly errors.
NEC requirements evolve and so do customer expectations. Choosing RONK’s POWERTRON gives your facility a code-compliant, future-ready solution that will support you for years to come.
With 75 years of experience serving rural electric co-ops, municipalities, contractors, and OEMs, RONK Electrical Industries has built its reputation on trust, performance, and service.
We understand that your facility’s power system isn’t just equipment, it’s the backbone of your operation. That’s why our engineers, fabricators, and support teams are committed to delivering solutions that exceed expectations, not just meet them.
When you choose RONK’s POWERTRON, you’re not just buying a product. You’re investing in a proven partner dedicated to helping you stay powered, stay compliant, and stay confident—no matter what the conditions bring.
If you’re designing or updating an emergency power system; or if you’re simply trying to meet the requirements of NEC 700.3(F)... let’s talk. We’ll help you identify the best solution for your needs and get it in the hands of your trusted distributor.
Contact our team directly at sales@ronkelectrical.com or 800-221-7665
