| SEL-ER | SEL-ER With BEACON LED Display | |
| Power Source | Electric field potential gradient | Electric field potential gradient and high-capacity, long-life, replaceable lithium battery |
| Display | Reflective red target | Reflective red target and flashing red LED |
| Nominal Trip Ratings | 50 to 1,200 A | |
| Trip Tolerance | ±10% | |
| System Voltage Range (L-L) | 10.35 kV to 69 kV | |
| Reset Time | Approximately 20 minutes at 6 kVL-N (Higher voltages result in quicker reset.) | |
| Maximum Fault Current | 25 kA for 10 cycles at 60 Hz | |
| Trip Response Time | 1 ms, optional 24 ms | |
| Inrush Restraint Response Time | 300 ms | |
| Outer Diameter Clamping Range | 0.16" to 1.40" | |
| Housing Material | UV-stabilized polycarbonate resin | |
| Clamp Material | Stainless-steel clamp with a UV-stabilized rubber sleeve | |
| Temperature Range | –40° to +85°C (–40° to +185°F) | |
| Approximate Weight | 386 g (0.85 lbs) | 408 g (0.90 lbs) |