CHINT NB2-80ZT Smart Miniature Circuit Breaker,
is designe for intelligent power protection in low-voltage AC circuits up to 80A.
Supporting overload, short-circuit, and over/undervoltage protection,
it also enables remote switching, metering, and communication via RS485 or Bluetooth.
With a compact modular design, 6 kA breaking capacity, and compliance with IEC/EN 60898-1,
it’s ideal for smart energy management, industrial panels, and modern building automation systems.
- Rated Current (In): 6 A – 80 A
- Rated Voltage (Ue): AC 230 V (1P+N) / AC 400 V (3P+N), 50 Hz
- Tripping Curve: Type C
- Rated Breaking Capacity: 6 kA
- Protection Features: Overload, short-circuit, over/undervoltage (settable parameters)
- Default Thresholds:
- OVP 280 V ± 5 V / Recovery 250 V ± 5 V
- UVP 165 V ± 5 V / Recovery 190 V ± 5 V
- Remote Control & Comms: RS485 (Modbus-RTU) / Bluetooth BLE 5.0 (backward compatible 4.0–4.2)
- Measurement Accuracy: Voltage ±0.5 % | Current ±1.0 % | Power ±1.5 %
- Mechanical Life: 10 000 cycles Electrical Life: 6 000 cycles
- Operating Temperature: −25 °C ~ +70 °C | Storage −40 °C ~ +70 °C
- Installation: DIN rail TH35-7.5 | Top feed | Cable/Pin busbar ( max 25 mm² , 3 N·m )
- Protection Degree: IP20 | Pollution Degree 2 | Flame Retardant V-0
- Standards & Certifications: IEC/EN 60898-1 | CE | RoHS | REACH
