Square D Standby Power Cam-to-Lock Tap Box
The Square D SPQCL404RS provides a safe, organized connection point for portable generator power in commercial and industrial standby power applications. Rated 400A at 480Y/277V in a 3-phase, 4-wire configuration, this tap box features color-coded cam-lock connectors for quick generator hookup and mechanical lugs for connection to the standby power disconnect. Built-in safety features protect electricians and prevent unauthorized access during emergency power events.
Key Features
- 400A, 480Y/277V, 3-phase 4-wire rating for large commercial generator connections
- Lockable door for safety and controlled access
- Mechanical lugs for termination to standby power disconnect
- Color-coded cam-lock connectors for fast, error-free generator connection
- Hinged bottom access door for cam-lock cable management
- Barriers over mechanical lugs for additional personnel protection
Specifications
| Specification | Value |
|---|---|
| Manufacturer | Square D (Schneider Electric) |
| Model | SPQCL404RS |
| Amperage | 400A |
| Voltage | 480Y/277V |
| Phase | 3-Phase |
| Wires | 4-Wire |
| Connector Type | Cam-to-Lock |


