# Residual Current Breaker CNC NV821877 2-pole 16A 30mA

**URL:** https://aio.lv/en/product--cnc-nv821877--10842638
**Data updated:** 2025-12-30 12:45 (EET)
**Category:** Power Sockets
**Manufacturer:** CNC
**Manufacturer code:** NV821877
**EAN:** 6942034323684
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 20.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 17.35 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--cnc-nv821877--10842638

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.06.2026 | free |
| Pickup points | 29.06.2026 | 1.99 EUR |
| Courier delivery to door | 29.06.2026 | 4.99 EUR |

## Summary description

CNC NV821877 is a residual current breaker (RCD) with 2 poles, rated for 16 A and 30 mA residual current sensitivity. Designed to detect earth leakage and quickly disconnect the circuit, it protects against electric shock and reduces fire risk. Suitable for residential and light commercial electrical installations and for safeguarding circuits with basic protective requirements.

## Long description

Residual current circuit breaker with overcurrent protection (RCBO), 2 poles, rated current 16 A and residual sensitivity 30 mA. The CNC NV821877 combines residual-current detection and overcurrent protection in a single modular device for DIN-rail installation in residential and light-commercial electrical panels. It is designed to disconnect supply quickly in case of earth leakage or overload/short-circuit, helping to reduce electric shock and fire risk.
Advantages
The RCBO integrates both residual-current and short-circuit/overload protection, saving space in the distribution board and simplifying wiring. It features a clear contact position indicator (red = closed, green = open), an anti-mistake contact terminal block, and a flame-retardant housing with high temperature and impact resistance. The device supports top-side connection and accepts cable or pin-type busbar up to 35 mm².
Suitable for
 Residential electrical distribution boards
 Small commercial installations
 Protecting circuits with basic earth-leakage and overcurrent protection requirements
 DIN-rail (35 mm) modular assemblies
Key specifications
 Type: RCBO, 2 poles
 Rated current: 16 A
 Tripping characteristic: Class C
 Residual sensitivity: 30 mA
 Rated voltage: AC 230 V
 Rated short-circuit capacity (Icn): 6000 A
 Rated impulse withstand voltage (Uimp): 4000 V
 Insulation voltage (Ui): 500 V
 Frequency: 50/60 Hz
 Break time: ≤ 0.1 s
 Mechanical life: 10000 cycles; Electrical life: 4000 cycles
 Protection degree: IP20
 Connection: from top; cable or pin-type busbar; up to 35 mm²
 Mounting: DIN rail EN 60715 (35 mm)
 Operating temperature: -25 °C to +70 °C
 Dimensions: 82 × 36 × 78 mm
 Standards: IEC 61009-1 / EN 61009-1
 Warranty: 24 months
How to use
Install the CNC NV821877 on a 35 mm DIN rail in the distribution board and secure electrical connections from the top according to wiring diagrams and local regulations. Use appropriate conductors or pin-type busbars up to 35 mm². Ensure the device is connected to the correct phase and neutral poles and that the earth conductor is present in the installation. After wiring, test the device using the built-in test function or a suitable RCD tester to confirm correct operation.
Usage recommendations
Use this RCBO in circuits where combined residual-current and overcurrent protection is required; perform periodic testing (monthly recommended) and follow national electrical codes for installation, testing, and maintenance.

## FAQ

### How much does the Residual Current Breaker CNC NV821877 2P 16A 30mA cost, and is it available for purchase?

The price is 20.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 22.06.2026 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: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### 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 CNC 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 CNC 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

https://aio.lv/img/cache/product/10842638/60193733_large.webp