EOCR-3DS-05-220 is a Microprocessor-based Electronic Over-Current Relay (EOCR) with 3 integral current transformers, a current setting range of 0.5A to 6A (or 1–5A depending on DIP switch configuration), and a control supply voltage of 180–260VAC (or 85–250VAC/DC across universal ranges).

Key Technical Specifications

1. Current Setting Range (Iscap I sub s
2. 𝑰𝒔
3. ): 0.5A – 6A
4. Control Voltage: 85–250 VAC/VDC
5. Starting Trip Delay (D-Time): Independently adjustable (0–120 sec for inverse, 1–120 sec for definite)
6. Trip Time Delay (O-Time): Independently adjustable (1–30 sec for inverse, 0.3–25 sec for definite)
7. Protective Functions: Over-current, short circuit/instantaneous, phase loss, phase unbalance, phase reversal, and locked rotor protection.
8. Output Contacts: Relay 1 (Overload: 2-SPST or 1a1b) normally energized / Relay 2 (Short circuit: 1-SPST) normally de-energized.
9. Display / Diagnostics: Seven-segment LED display for current reading and trip cause troubleshooting.
10. Mounting: 35mm DIN rail or panel mount.