# Chint | Circuit breaker RCBO, NB310L/3N, 3P+N, C32, 30mA, A, 6kA | NB310L3PN30MAA32C

- **Brand:** Chint
- **SKU:** CHINT-NB310L-32A
- **GTIN:** 6925880537696
- **MPN:** NB310L3PN30MAA32C
- **Price:** 55.00 EUR
- **Availability:** In stock
- **Categories:** EV Chargers, Accessories

The Chint NB310L/3N RCBO (C32, 30 mA, 6 kA) is a compact 3P+N breaker combining MCB and RCD functions. It protects against overloads, short circuits, and earth leakage, making it ideal for commercial, industrial, and residential applications.

**Full Description**

The **Chint NB310L/3N RCBO** is a high-performance residual current circuit breaker with overcurrent protection (RCBO), designed to safeguard people, equipment, and installations against **overloads, short circuits, and earth leakage faults**. By combining the functions of an **MCB (Miniature Circuit Breaker)** and an **RCD (Residual Current Device)** in a single compact unit, it offers reliable and space-saving protection for modern electrical systems.

This **3-pole + neutral (3P+N)** RCBO is ideal for **three-phase applications** in commercial, industrial, and residential settings. With its **C32 tripping curve**, the breaker provides dependable performance for circuits with higher inrush currents, such as motors, HVAC equipment, and general-purpose loads.

Equipped with a **30 mA residual current sensitivity (Type A)**, it ensures advanced protection against both **AC and pulsating DC leakage currents**, enhancing electrical safety in line with international standards. Rated at **6 kA breaking capacity**, the NB310L/3N withstands high fault currents, ensuring reliable operation in demanding environments.

**Specifications**

- **Model:** NB310L3PN30MAA32C
- **Device Type:** RCBO (Residual Current Circuit Breaker with Overcurrent Protection)
- **Poles:** 3P+N (Three-phase + Neutral)
- **Rated Current:** 32 A
- **Tripping Curve:** Type C (suitable for inductive and resistive loads)
- **Residual Current Sensitivity:** 30 mA
- **RCD Type:** Type A (detects AC + pulsating DC leakage currents)
- **Rated Voltage:** 400/230 V AC
- **Frequency:** 50/60 Hz
- **Breaking Capacity:** 6 kA
- **Mounting:** DIN rail, 4 modules wide
- **Operating Temperature Range:** –5 °C to +40 °C
- **Ingress Protection:** IP20 (in enclosure)
- **Reset Mechanism:** Manual toggle switch
- **Certifications:** CE, RoHS, IEC/EN 61009-1

## Specifications

| Spec | Value |
| --- | --- |
| Weight | 0.268 kg |
| Cooling | Natural air circulation |
| Warranty | 24 months |
| Dimensions | 77 × 85 × 95 mm |
| Phase type | three-phase |
| Compatibility | 35 mm DIN rail systems, IEC/EN 61009-1 distribution boards |
| Certifications | CE, IEC/EN 61009-1 |
| Mounting options | Standard 35 mm DIN rail |
| Installation type | DIN rail mounted |
| Protection rating | IP20 (typical for MCB/RCBO) |
| Operating temperature | –25°C to +40°C |