Separate "breaker box" needed for electric hot water tank?

[dankoos]

My electric hot water tank has its own double pole breaker in the main house electrical panel. On the wall next to the tank is also a separate "braker box" which has another shutoff...is this second box required by code? Just curious why it would be needed if it is required?

 

[Stuff]

You need a local shutoff or a breaker lock if the panel is not in sight of the appliance. Using a "breaker box" is an option but a double pole 30 amp switch is cleaner. Otherwise an air conditioner disconnect can be a cheaper solution.

 

[Sponsor]

 

[dankoos]

You need a local shutoff or a breaker lock if the panel is not in sight of the appliance. Using a "breaker box" is an option but a double pole 30 amp switch is cleaner. Otherwise an air conditioner disconnect can be a cheaper solution.

The main panel is in the hallway, right around the corner from tank. It has the double pole switch in the main panel, so can this box next to the tank go away? It has a bad connection and needs either replaced or removed, trying to figure out which is best

 

[Stuff]

If around the corner then it is not in sight. You need to replace the disconnect or add a breaker lock.

 

[hj]

In this area, the main breakers are outdoors and they NEVER install a second disconnect at the heater.

 

[Stuff]

In this area, the main breakers are outdoors and they NEVER install a second disconnect at the heater.

It's in the national code. Might be a state/local amendment overriding it. Or likely ignored. NEC 422.31(B)

Appliances Rated over 300 Volt-Amperes. For perma-
nently connected appliances rated over 300 volt-amperes, the
branch-circuit switch or circuit breaker shall be permitted to
serve as the disconnecting means where the switch or circuit
breaker is within sight from the appliance or is lockable in
accordance with 110.25.

 

[Jadnashua]

What's generally needed is a disconnect...not an additional breaker (which can work as one). Code want that within visual range of the device.

 

[WorthFlorida]

At one time most disconnect switches looked like a breaker in a breaker box. This one is new but shows what can be installed.
https://www.wholesalecontractorsupp...MP-A2-AC-Disconnect-Switches-p/br-6179881.htm