# RCBO circuit breaker Chint NB310L/3N 3P+N C20 30 mA residual-current overcurrent protection

**URL:** https://aio.lv/en/product--chint-nb310l3pn30maa20c--5081592
**Data updated:** 2025-12-30 05:56 (EET)
**Category:** Electric Vehicle Charging Devices
**Manufacturer:** Chint
**Manufacturer code:** NB310L3PN30MAA20C
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 77.99 €
**Prices and availability valid until:** 2026-08-08 23:59
**Price without VAT (21%):** 64.45 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--chint-nb310l3pn30maa20c--5081592

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Tuesday | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

RCBO Chint NB310L/3N is a 3-pole plus neutral (3P+N) circuit breaker combining overcurrent (C20, 20 A type C characteristic) and residual-current protection (30 mA). It provides combined short-circuit, overload and earth-leakage protection for three-phase circuits with neutral, suitable for distribution boards in commercial or residential installations and enhancing safety against electric shock and fire.

## Long description

RCBO Chint NB310L/3N is a 3-pole plus neutral (3P+N) circuit breaker that integrates overcurrent protection (C20, 20 A, type C characteristic) and residual-current (earth-leakage) protection rated at 30 mA. Designed for three-phase circuits with neutral, this device offers combined short-circuit, overload and earth-leakage protection for distribution boards in residential and commercial installations, improving protection against electric shock and fire.
Advantages
The Chint NB310L/3N combines two protective functions in one compact module, saving space in the distribution board and simplifying wiring. With a 30 mA residual-current trip it provides reliable personal protection against electric shock, while the C20 overcurrent characteristic protects equipment and wiring from overloads and short circuits. The RCBO’s 3P+N configuration makes it suitable for three-phase systems with neutral and helps ensure coordinated protection for each phase.
Suitable for
Three-phase distribution boards with neutral in residential buildings
Commercial electrical installations requiring combined overcurrent and RCD protection
Circuits where space-saving, per-phase protection is needed
Key specifications
Producer product name: NB310L3PN30MAA20C
Producer product family: Circuit breaker RCBO, NB310L/3N, 3P+N, C20, 30mA, A, 6kA
Poles: 3P+N (three poles plus neutral)
Overcurrent characteristic: C20 (20 A, type C)
Residual-current sensitivity: 30 mA
Net weight: 0.27 kg
Gross weight: 0.46 kg
Packing quantity: 1 pc
Packaging paper/pasteboard: 192 g
Plastic (No PET) in packaging: 40 g
Tare weight: 0.19 kg
TI weight: 0.03 kg
WEE classification: CL109:6:2017-04-01
Warranty: 24 month(s)
How to use
Install the RCBO in the distribution board following local electrical codes and the manufacturer’s installation instructions. Connect the three phase conductors and neutral to the corresponding terminals, and connect load circuits to the output terminals. Ensure correct tightening of terminals and that the device rating (C20, 20 A and 30 mA RCD) matches the circuit requirements. Test the residual-current function after installation using the built-in test button or a suitable test device.
Usage recommendations
Use this RCBO in three-phase circuits with neutral where combined overcurrent and earth-leakage protection is required. Do not use the device beyond its rated current and residual-current sensitivity. Periodically test the RCD function and follow local regulations for inspection and maintenance.

## FAQ

### How much does the RCBO Chint NB310L/3N 3P+N C20 30 mA cost, and is it available for purchase?

The price is 77.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 30 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on Tuesday at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can RCBO Chint NB310L/3N 3P+N C20 30 mA be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Chint products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Chint service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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