130.30(A) Load-shedding controls
An EMS cannot override load-shedding controls that preserve minimum electrical capacity for:
Fire pumps
Emergency systems
Legally required standby systems
Critical operations power systems
130.30(B) Disconnection of power
An EMS cannot disconnect power to:
Elevators, escalators, moving walks or stairway lift chairs
Positive mechanical ventilation for hazardous (classified) locations
Ventilation used to exhaust hazardous gases or reclassify an area
Circuits supplying emergency lighting
Essential electrical systems in health care facilities
(A) protects specified load-shedding controls. (B) prohibits EMS disconnection of specified loads.
130.30(C) Circuit capacity
An EMS cannot cause a branch circuit, feeder or service to become overloaded. A service-level limit does not prove every feeder or branch circuit is protected.
Why it matters
A ventilation fan may look like an ordinary motor load on a schedule. Its function may make it a load the EMS cannot disconnect. Verify the function before assigning controls.
Do
Identify each controlled load and its purpose.
Keep prohibited loads out of EMS disconnection sequences.
Coordinate controls with emergency and standby power diagrams.
Check branch-circuit, feeder and service capacity.
Do not
Assume every fan or motor can be shed.
Override controls preserving required capacity.
Assume staying below the service limit prevents every overload.
Field tip
Compare the EMS load list with equipment schedules and control sequences. For each load, ask what it serves, whether the EMS can disconnect it, whether the command would defeat protected capacity controls, and whether the sequence could overload another circuit. Resolve those questions before enabling automatic control. Next: #038 — NEC 2026 130.50–130.80 Power Control Systems (3/3).
Questions to settle before design
Which loads are on the EMS load list, and what does each one serve?
Are any of them protected loads that the EMS may not disconnect?
Could a shedding sequence overload another branch circuit or feeder?
MasterBuild field checklist
Mark each EMS-controlled load on the panel schedules.
Check that no protected load appears in a disconnection sequence.
Review branch-circuit and feeder capacity, not only the service total.
MasterBuild recommendation: process steps for design and site review, not code text.
Where MasterBuild helps
Load calculations prepared and reviewed by the PE, or send your project background. The fee is quoted in writing before work starts.
Code basis and applicability
Study edition: NEC 2026 (NFPA 70). Florida enforces NEC 2020 under the 2023 Florida Building Code (8th Edition). The 9th Edition (published; state adoption pending) adopts NEC 2023 for permit applications on or after 12/31/2026. Section numbers and some rules differ between editions. Verify the edition that governs your permit. NEC 2020 and NEC 2023, which Florida enforces, have no Article 130; energy management systems are in Article 750 and power control systems in 705.13. Verify the section in the adopted edition. Educational reference to NEC 2026 Section 130.30. Check the complete NFPA 70 text, the locally adopted edition and amendments, the authority having jurisdiction, and the selected equipment instructions before project use.