Outdoor Emergency Disconnect
An outdoor emergency disconnect is a breaker or switch outside a one- or two-family home that firefighters can use to shut off all of the power without going inside. The California Electrical Code requires one on new services and when the service equipment is replaced, labeled EMERGENCY DISCONNECT.
The rule is Section 230.85 of the National Electrical Code. It first appeared in the 2020 edition, and the 2025 California Electrical Code, in force since January 1, 2026, adopts it from the 2023 edition. The 2023 edition spells out that replacing the service equipment brings the rule into play.
Here the main breaker usually already sits outdoors in the combination meter main, so it can serve as the emergency disconnect once it carries the label EMERGENCY DISCONNECT, SERVICE DISCONNECT. Other set-ups use a separate meter disconnect or another listed switch ahead of the main, each with its own required label.
Also known as: Emergency disconnectNEC 230.85Exterior emergency disconnectFirst-responder disconnect
Why it matters in Santa Cruz County
An older service that has not been touched does not have to add one. It becomes part of the job when the service is new or the service equipment is replaced, for example in a 200-amp panel upgrade. On an inspection report, a missing or unlabeled emergency disconnect matters on a recently replaced service; on an older, untouched one it is noted, not counted against the house.
Sunrise's take
Every main service we replace gets an outdoor emergency disconnect with the required labels, because the code calls for it on a replacement and because it lets firefighters cut the power fast.
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