BCH BOCR4.0-05Z35N BOCR 4.0 Motor Protection Relay (0.25A-5A, with ZCT)
BCH BOCR 4.0 microcontroller based motor protection relay for LV & MV motors, full load current range 0.25A-5A, with ZCT/CBCT (earth fault), with separate base module and LCD display module. It has 3 output relays for trip and alarm and protects against overload, under current, short circuit, locked rotor, stall, unbalance, phase loss, phase reversal and CB failure, plus earth fault via CBCT. Optional MODBUS RS485 communication.
Specifications
| Cat Code | BOCR4.0-05Z35N |
| Product Series | BOCR 4.0 |
| Full Load Current Range | 0.25A-5A |
| Leakage Detection | with ZCT/CBCT (earth fault) |
| Operational Current | 0.05 - 10.0 x IFL |
| Protection | Overload, Under Current, Short Circuit, Lock Rotor, Stall, Unbalance, Phase Loss, Phase Reversal, Earth Fault (ZCT model), CB Failure |
| Construction | Base module + display module (12x2 character LCD display) connected by link cable |
| Auxiliary Supply | 85V to 270V AC/DC (code A) |
| DO Contacts | 1 C/O contact: N/O 10A / 250V AC or 12V DC, N/C 10A / 250V AC or 12V DC; 2 N/O contacts with 2 common, 7A / 250V AC or 12V DC |
| DO Reset | Automatic / Manual |
| CBCT | 30 mA to 2 Amp: CT ratio 1:1500 |
| Frequency Range | 50 / 60 Hz |
| Accuracy - Trip Time | ± 5% (or ± 100 mSec), whichever is higher |
| Accuracy - Trip Current (Phase / Earth) | ± 5% (or ± 0.020 Amp), whichever is higher |
| Mounting | 35 mm DIN-rail / panel mount |
| Operating Temperature | 0°C to 70°C |
| Storage Temperature | -10°C to 85°C |
| Connection for Current | Penetration / tunnel type |
| Connection for Others (aux supply, relay contacts) | Screwed terminal |
Ordering / Variants
Ordering code BOCR 4.0 - full load range (05 / 60) - leakage detection (0: no ZCT/CBCT, Z: with ZCT/CBCT) - auxiliary supply (A: 85V-270V AC/DC) - advance features (M: MODBUS RS485 comm., 0: none). Variants: ZCT 35/50/90/150 mm ID, N (no comm.) or M (MODBUS), e.g. BOCR4.0-05Z35M.
Datasheet, certificates and quotation on request - info@west-velocity.com.
