Current Differential Relay SEL SEL-387L for Protection
Condition:
NEW
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Delivery
Estimated between Monday, September 28 and Wednesday, September 30
Returns
30-day returns. Buyer pays return shipping. See details – More info about returns
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SEL SEL-387L
High-speed line current differential protection with dependable overcurrent backup for utility and industrial power systems
| Brand | SEL |
| Model | SEL-387L |
| Voltage | 24–250 Vdc or 110–240 Vac, model dependent |
| Country of Origin | United States |
| Weight | Approximately 4.5 kg |
| Dimensions | Approximately 133 x 432 x 241 mm |
| Warranty | 6 months |
| Certifications | UL, CSA, CE, IEEE, IEC |
| SKU / MPN | SEL-387L |
| What’s in the box | SEL-387L relay, terminal connectors, mounting hardware, technical documentation |
| Protection Functions | Current differential and overcurrent protection |
| System Application | Two-terminal transmission and distribution line protection |
| Current Inputs | Three-phase and neutral current inputs with multiple CT ratio support |
| Communication | Serial communications with front-panel and rear-port interfaces |
| Event Recording | Oscillographic event records, sequential event reports, and fault data |
| Mounting | Panel or rack mounting |
Key benefits: Fast fault clearing, secure differential protection, flexible CT compatibility, detailed event reporting, dependable backup protection, and rugged substation construction
Typical applications: Transmission line protection, distribution feeder protection, substation automation, industrial power networks, transformer-connected line bays, and utility switchgear
Lifecycle: New unit from a mature SEL relay platform; availability and firmware support should be verified with the manufacturer
1 review for Current Differential Relay SEL SEL-387L for Protection
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Susan Y. –
Solid relay modules, good switching capacity. Perfect for our automation panel.