# Chint | Circuit breaker RCBO, NB310L/3N, 3P+N, C20, 30mA, A, 6kA | NB310L3PN30MAA20C

- **Brand:** Chint
- **SKU:** CHINT-NB310L-3N-C20-30mA-6kA
- **GTIN:** 6925800835762
- **MPN:** NB310L3PN30MAA20C
- **Price:** 49.00 EUR
- **Availability:** In stock
- **Categories:** EV Chargers, Accessories

The Chint NB310L/3N RCBO (3P+N, C20, 30mA, 6kA, Type A) provides combined overload, short-circuit, and residual current protection in one compact device. Ideal for residential, commercial, and industrial electrical installations.

## Full Description

The **Chint NB310L/3N RCBO** is a 4-pole protection device that integrates **MCB (Miniature Circuit Breaker) and RCCB (Residual Current Circuit Breaker)** functions in a single unit. Rated at **C20**, with **30mA residual current sensitivity (Type A)** and **6kA breaking capacity**, it ensures reliable protection against overload, short circuits, and earth leakage faults.

Compact and easy to install, it is designed for use in **residential, commercial, and industrial distribution boards**. Its high-quality construction and compliance with IEC standards make it a trusted choice for safe and efficient electrical protection.

**Specifications:**

- **Model:** NB310L/3N RCBO
- **Poles:** 3P+N (4-pole)
- **Rated Current:** 20 A (C20 curve)
- **Residual Current:** 30 mA (Type A)
- **Breaking Capacity:** 6 kA
- **Rated Voltage:** 230/400 V AC
- **Standards:** IEC/EN 61009-1
- **Dimensions (packaged):** 95 × 77 × 85 mm
- **Net Weight:** 0.27 kg
- **Gross Weight:** 0.46 kg
- **Installation:** DIN rail mounted
- **Manufacturer:** Chint
- **Warranty:** 24 months

**Key Benefits:**

- Combines MCB + RCCB protection in one device
- 3P+N design for complete circuit protection
- Reliable overload, short-circuit, and earth leakage protection
- Type A RCD sensitivity for modern electronic loads
- Compact, easy to install, and IEC compliant

## Specifications

| Spec | Value |
| --- | --- |
| Weight | 0.27 kg |
| Cooling | Passive |
| Display | Trip indicator window |
| Warranty | 24 months |
| Dimensions | 95 × 77 × 85 mm |
| Monitoring | Manual test button + fault indication |
| Phase type | three-phase |
| Noise level | 0 dB |
| Compatibility | Fits standard DIN rail systems |
| Nominal power | 230/400 V AC |
| Certifications | IEC/EN 61009-1 |
| Mounting options | Standard DIN-rail housing |
| Installation type | DIN rail mounted |
| Protection rating | IP20 (within enclosure) |
| Operating temperature | –25 ºC to +55 ºC |