Overview
The Square D Multi 9 M9R12425 Ground Fault Protector delivers equipment-level ground fault protection in 4-pole configurations for 480Y/277V three-phase systems. Rated at 25A with an 86 mA instantaneous trip sensitivity, this Type A-SI device is engineered for use in commercial and industrial power distribution panels where NEC-compliant ground fault protection of equipment (GFPE) is required. Its compact Multi 9 form factor integrates seamlessly into existing switchboards, panelboards, and motor control centers.
Features
- 4-pole design provides simultaneous protection across all phases plus neutral for 480Y/277V systems
- 86 mA instantaneous trip sensitivity for fast, reliable ground fault detection
- Type A-SI classification for equipment ground fault protection (GFPE) per NEC Article 230 and 215
- Compact Multi 9 modular form factor for easy panel integration
- 25A continuous current rating suitable for feeder and branch circuit protection
- Trip indicator provides visible fault status for rapid diagnostics
- Compatible with Square D Multi 9 enclosures and accessories
Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Square D (Schneider Electric) |
| Model Number | M9R12425 |
| UPC | 78590176408 |
| Product Line | Multi 9 |
| Device Type | Ground Fault Protector |
| Number of Poles | 4 |
| Voltage Rating | 480Y/277V AC |
| Current Rating | 25A |
| Trip Sensitivity | 86 mA Instantaneous |
| Type | A-SI |



