CHINT NB2LE-80ZT Residual current action circuit breaker

CHINT NB2LE-80ZT Residual current action circuit breaker,

with Overcurrent Protection (Electronic) is a next-generation smart protection device designe for AC 50 Hz,
230/400 V circuits up to 80 A. It integrates overload, short-circuit, over/under-voltage,
and leakage protection, making it ideal for modern electrical systems.
Featuring electronic tripping, remote control, and data monitoring via RS485 or Bluetooth,
it supports energy metering, communication, and automatic fault diagnostics.
Its advance design ensures high accuracy, reliability, and seamless integration into smart distribution systems.

• Function: Overload, short-circuit, over/under-voltage, and residual current protection with real-time monitoring
• Standard Compliance: IEC/EN 61009-1
• Certifications: CE, RoHS, REACH
• Rated Current (In): 6 A, 10 A, 16 A, 20 A, 25 A, 32 A, 40 A, 50 A, 63 A, 80 A
• Rated Voltage (Ue): 230 V (1P+N), 400 V (3P+N)
• Rated Frequency: 50 Hz
• Tripping Type: Electronic (smart control)
• Tripping Curve:
  • C Curve (5–10 In): For mixed resistive and inductive loads
  • D Curve: For high inrush current circuits (3P+N, 6A–20A)
• Leakage Detection Type: Type A and Type AC (for sinusoidal and pulsating DC currents)
• Rated Residual Operating Current (IΔn): 0.01 A, 0.03 A, 0.1 A, 0.3 A
• Rated Short-circuit Breaking Capacity (Icn): 6 kA
• Rated Insulation Voltage (Ui): 690 V
• Rated Impulse Withstand Voltage (Uimp): 6 kV
• Dielectric Test Voltage: 2 kV for 1 minute
• Mechanical Life: 10,000 operations
• Electrical Life: 6,000 operations
• Ambient Operating Temperature: –25 °C to +70 °C (reference 30 °C)
• Storage Temperature: –40 °C to +70 °C
• Overvoltage/Undervoltage Thresholds:
  • Overvoltage action: 280 V ±5 V
  • Recovery threshold: 250 V ±5 V
  • Undervoltage action: 165 V ±5 V
  • Recovery threshold: 190 V ±5 V
• Non-driving time: ≥3 s;
• Recovery time: ≥10 s
• Communication Interfaces: RS485 (Modbus-RTU protocol), Bluetooth BLE 5.0 (compatible with BLE 4.x)