Panelboards

Read revision 5

Revision 5 · Oct 12, 2026 +19 −3

Datasheet constraints: every range, checkbox and listbox field now states its direction
Showing changes from Rev 4 to Rev 5 in Panelboards.
---
title: Panelboards
…97 unchanged lines
- "Short-circuit current rating basis and series-rated combinations"
- "Nameplate schedule"
+constraint: all_of
```
…22 unchanged lines
- "Manufacturer's qualification statement"
- "Field testing firm and technician qualifications"
+constraint: all_of
```
…30 unchanged lines
- "Warranty certificate"
- "Spare parts and keys receipt"
+constraint: all_of
```
…7 unchanged lines
```datasheet
−label: Minimum Manufacturer Listing History
+label: Manufacturer Listing History
type: range
unit: years
…3 unchanged lines
setpoints: [0, 3, 5, 10, 20]
default: 5
+constraint: min
```
…44 unchanged lines
setpoints: [25, 30, 40, 50, 55]
default: 40
+constraint: min
```
…123 unchanged lines
setpoints: [60, 100, 125, 150, 200, 225, 250, 400, 600, 800, 1000, 1200, 1600]
default: deferred
+constraint: exact
```
…18 unchanged lines
setpoints: [10, 14, 18, 22, 25, 30, 35, 42, 50, 65, 85, 100, 150, 200]
default: deferred
+constraint: min
```
…12 unchanged lines
setpoints: [10, 14, 18, 22, 25, 30, 35, 42, 50, 65, 85, 100, 150, 200]
default: derived
+constraint: min
```
…26 unchanged lines
setpoints: [10, 14, 18, 22, 25, 30, 35, 42, 50, 65, 85, 100, 150, 200]
default: derived
+constraint: min
```
…320 unchanged lines
max: 8
step: 1
+constraint: exact
```
…92 unchanged lines
```datasheet
−label: Minimum Spare Branch Circuit Positions
+label: Spare Branch Circuit Positions
type: range
unit: '%'
…2 unchanged lines
max: 30
setpoints: [0, 10, 15, 20, 25, 30]
+constraint: min
```
…164 unchanged lines
- "Neutral-to-ground separation verification on every panelboard that is not service equipment"
- "Branch circuit continuity and phase assignment against the record panel schedule"
+constraint: all_of
```
…48 unchanged lines
max: 78
step: 6
+constraint: exact
```
…40 unchanged lines
```datasheet
−label: Maximum Phase Load Imbalance
+label: Phase Load Imbalance
type: range
unit: '%'
…2 unchanged lines
max: 25
step: 5
+constraint: max
```
…28 unchanged lines
max: 5
setpoints: [1, 2, 3, 5]
+constraint: min
```
…42 unchanged lines
default:
- "One set of filler plates for every space position on the project"
+constraint: all_of
```
## Spare devices shall be identical to and interchangeable with the installed devices, shall be delivered in their original packaging, and shall be labeled with the panelboard designation or the device rating they serve.
## Spare devices shall be stored in a labeled container in the electrical room, and shall not be stored inside an operating panelboard.

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