Specifications
| Model | SF72, AM-72, or SQ72 |
| Type | AC Analog Ammeter (Moving Iron) |
| Dimensions (WxH) | 72mm x 72mm |
| Cutout Size | Approximately 68mm x 68mm |
| Primary Current | 400A (Amperes) |
| Secondary Current | 5A (Amperes) |
| Connection Type | Requires connection via a Current Transformer (CT) with a 400/5A ratio |
| Accuracy Class | Class 1.5% |
| Deflection | 90° scale arc |
| Operating Frequency | 45-65 Hz |
| Operating Voltage | Typically 600V RMS max insulation voltage |