Overview
The Square D QO PKSB3BF is a factory-designed 3-phase back-fed service barrier kit for QO and Homeline load centers. When a main circuit breaker is back-fed — a common configuration in generator transfer switch installations and service entrance equipment — this barrier kit provides the required physical separation between energized conductors and the enclosure interior, helping meet NEC safety requirements. The kit dimensions are 7.6 L x 6.1 H x 6.9 W in.
Features
- Designed for 3-phase back-fed breaker configurations
- Compatible with Square D QO and Homeline load centers
- Dimensions: 7.6 L x 6.1 H x 6.9 W in.
- Helps meet NEC requirements for back-fed service entrance equipment
- Factory-engineered fit for reliable installation
Specifications
| Specification | Value |
|---|---|
| Manufacturer | Square D (Schneider Electric) |
| Series | QO |
| Model | PKSB3BF |
| UPC | 78590151716 |
| Phase | 3-Phase |
| Product Type | Back-Fed Service Barrier Kit |
| Length | 7.6 in. |
| Height | 6.1 in. |
| Width | 6.9 in. |


