Chint NL1-100 4P 100A 100mA RCCB – 4 Pole Residual Current Circuit Breaker, AC Type, 100 mA Sensitivity, 6 kA Withstand for Three‑Phase Earth Leakage Protection

Product Code: NL1-100-4P-100A-100mA
Brand: Chint
Product Type: RCCB (Residual Current Circuit Breaker)
Pole Configuration: 4 Pole (4P) – L1, L2, L3, N
Rated Current: 100 Amperes (100 A)
Residual Operating Current (Sensitivity): 100 mA
Type: AC (detects sinusoidal AC leakage currents)
Short-Circuit Withstand Capacity (Im): 6 kA (when used with upstream MCB)
Mounting Type: DIN Rail
Compliance Standard: IEC/EN 61008-1

Product Overview

The Chint NL1-100 4P 100A 100mA RCCB provides intermediate-sensitivity earth leakage protection for three-phase systems with neutral. Its 100 mA trip threshold balances between personal safety and fire-risk prevention, making it ideal for commercial or light‑industrial installations where 30 mA devices may nuisance-trip but 300 mA devices are too insensitive.

Rated at 100 A, it safeguards high‑capacity circuits—such as motor banks, HVAC loops, and generator outputs—by disconnecting all three phases and neutral upon detecting hazardous leakage currents.

Key Features

• 🔋 100 A High-Load Rating – Supports large three‑phase + neutral circuits

• ⚠️ 100 mA Sensitivity – Optimized for mixed safety/fire‑risk protection

• 🔌 4‑Pole Isolation (L1, L2, L3, N) – Full simultaneous disconnection on fault

• 🌐 AC Type RCCB – Detects standard sinusoidal AC residual currents

• ⚡ 6 kA Withstand Capacity – Ensures robustness when coordinated with an MCB

• 🧲 DIN Rail Mounting – Quick and secure installation in distribution panels

• ✅ IEC/EN 61008-1 Certified – Meets global standards for reliability and safety

Technical Specifications

Typical Applications

• Commercial and light‑industrial distribution boards

• Motor control centers and pump circuits

• Generator/inverter output protection

• HVAC and refrigeration systems

• Panels where 30 mA RCCBs nuisance‑trip but 300 mA are too insensitive

Why Choose Chint NL1-100 4P 100A 100mA RCCB?

With its 100 mA sensitivity, the NL1-100 4P RCCB bridges the gap between personal‑protection (30 mA) and fire‑risk (300 mA) devices, offering reliable earth‑leakage safety in demanding three‑phase installations. Paired with a robust 6 kA withstand rating and full four‑pole isolation, it’s the professional’s choice for balanced, nuisance‑free protection.