| Compliance | Designed and manufactured under an ISO 9001-certified quality management system | |||
| Operating and Storage Temperature Range | –40° to +85°C (–40° to +185°F) | |||
| Operating Environment | Pollution degree: 2 Relative humidity: 5–95%, noncondensing Maximum altitude: 2,000 m (1.24 mi) | |||
| Ingress Protection | SEL-FT50/SEL-RP50: IP67 | |||
| Clamp Range | SEL-FT50-0001/3/6: 0.635 to 3.175 cm (0.25 to 1.25 in) SEL-FT50-0004/5/7: 0.762 to 2.794 cm (0.3 to 1.1 in) SEL-RP50-0001/6: 0.635 to 3.175 cm (0.25 to 1.25 in) | |||
| Dimensions | SEL-FT50-0001/3/6: 14.17 cm (5.58 in) diameter, 17.7 cm (6.97 in) tall SEL-FT50-0004/5/7: 14.503 cm (5.71 in) diameter, 14.81 cm (5.83 in) tall SEL-RP50-0001/6: 14.17 cm (5.58 in) diameter, 17.7 cm (6.97 in) tall SEL-FR12: 4.37 cm (1.72 in) tall, 24.31 cm (9.57 in) wide, 11.71 cm (4.61 in) deep | |||
| Weight | SEL-FT50-0001/3/6: 0.86 kg (1.9 lb) SEL-FT50-0004/5/7: 0.59 kg (1.3 lb) SEL-RP50-0001/6: 0.86 kg (1.9 lb) | |||
| Power | SEL-FT50 and SEL-RP50: Line-powered (no batteries) SEL-FR12 Voltage: 9–30 Vdc Power consumption: <2 W | |||
| Current Pickup Level | Individually configurable on each SEL-FT50 Level options: 50, 100, 200, 400, 600, 800, 1,000, and 1,200 A | ||
| Fault Detection Accuracy | SEL-FT50-0001/3/6: 3% typical, 20% maximum SEL-FT50-0004/5/7: 20% typical | ||
| Maximum Voltage | Up to 38 kV (L-L) for SEL-FT50 and SEL-RP50 | ||
| System Latency | Fault detection (SEL-FT50) to Mirrored Bits communications output (SEL-FR12): 6 ms Each fault repeater (SEL-RP50) in system: Additional 1.5 ms per hop | ||
| Network Size | 12 SEL-FT50 transmitters per SEL-FR12 receiver Up to 5 SEL-RP50 repeaters per SEL-FT50 16 user-selectable network IDs | ||
| Frequency Band | Australia: 915–928 MHz Brazil: 902–907.5 MHz, 915–928 MHz Canada: 902–928 MHz European Union: 863–870 MHz Mexico: 902–928 MHz New Zealand: 915–928 MHz Peru: 916–928 MHz United States: 902–928 MHz Use the Country Model Guide to determine which device models are right for you. |
| Serial Communications | Serial protocol: Mirrored Bits communications Serial port: 9,600, 19,200, 38,400, 115,200 bps |
| Modulation | 2-FSK |
| Expected Range | SEL-FT50/SEL-RP50 to SEL-FR12: approximately 1 mile* SEL-FT50 to SEL-RP50: approximately 1 mile* SEL-RP50 to SEL-RP50: approximately 0.5 miles* *Requires flat terrain with clear line of sight and no RF interference—see the Wireless Protection System Instruction Manual for details |
Patents pending