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Can an unused (spare) circuit breaker remain in an electrical panel or does it have to be removed?
Monday, September 23, 2019
Spares do not have to be removed from the panel. The National Electrical Code (NEC) simply requires that they be identified in the circuit directory. At 408.4(A) it states that “spare positions that contain unused overcurrent devices or switches shall be described accordingly.” For more details on panel circuit directory requirements at NEC 408.4, see our blog post What are the code requirements for a circuit directory and circuit identification for an electric panel?
We recently examined a panel at a new home that had a 240V breaker marked “SPARE” that had wiring which ran to a subpanel at the back exterior wall of the home with a blank dead front and no breakers. This was probably intended as a future pool panel; but it was mislabeled, and a breaker marked spare should not have any wires connected to it.
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Here’s links to a collection of our other blog posts about ELECTRIC PANELS:
• What causes copper wires to turn green or black in an electric panel?
• What is the maximum number of circuit breakers allowed in an electric panel?
• When should a corroded or damaged electric panel cabinet or disconnect box be replaced?
• What is a tandem circuit breaker?
• When did arc fault circuit interrupter (AFCI) breakers first become required?
• Can an electric panel be located in a closet?
• Can an electric panel be located in a bathroom?
• Can you add circuit breakers by different manufacturers to an electric panel if they fit?
• My circuit breaker won't reset. What's wrong?
• What is a split bus electric panel?
• How do I identify a combination AFCI (CAFCI) circuit breaker?
• What does a circuit breaker with a yellow or white test button indicate?
• What are the requirements for NM-cables entering an electric panel box?
• Why is a fuse box/panel an insurance problem for homebuyers?
• Why is bundled wiring in an electric panel a defect?
• What is the difference between GFCI and AFCI circuit breakers?
• Why are old electrical components not always "grandfathered" as acceptable by home inspectors?
• What happens when you press the "TEST" button on a circuit breaker in an electric panel?
• What is a Dual Function Circuit Interrupter (DFCI)?
• What is the difference between "grounded" and "grounding" electrical conductors?
• What does it mean when a wire is "overstripped" at a circuit breaker?
• Why is an old fuse panel dangerous?
• Who is the manufacturer of those "bad" electric panels?
• Why is the circuit breaker stuck in the middle?
• What is a double tap at a circuit breaker?
• What is the right electric wire size for a circuit breaker in an electric panel?
• What is the life expectancy of a circuit breaker?
• My circuit breaker won't reset. What's wrong?
• Why do some breakers in my electric panel have a "TEST" button on them?
• What is the right size electric panel for a house?
• What do I need to know about buying a whole house surge protector?
• What is the maximum allowed height of a circuit breaker (OCPD) above the floor?
• What is the maximum height you can mount an electric panel above the floor?
• What is the code required clearance in front of an electric panel?
• What is the main bonding jumper and where do it find it in an electric panel?
Visit our ELECTRIC PANELS page for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles.
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