# Miniature Circuit Breaker HiSmart NV821631 4P 40A

**URL:** https://aio.lv/en/product--hismart-nv821631--10840452
**Data updated:** 2025-12-30 12:45 (EET)
**Category:** Power Sockets
**Manufacturer:** HiSmart
**Manufacturer code:** NV821631
**EAN:** 6942034316167
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 22.49 €
**Prices and availability valid until:** 2026-08-10 23:59
**Price without VAT (21%):** 18.59 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hismart-nv821631--10840452

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.89 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

Four-pole miniature circuit breaker HiSmart NV821631 with 40 A rated current. Designed to protect electrical circuits from overloads and short circuits in residential, commercial or light industrial installations. Compact DIN-rail mounting, manual operation, and reliable trip characteristics provide safe disconnect and circuit protection. Suitable for distribution panels requiring 4P protection.

## Long description

HiSmart NV821631 is a four-pole miniature circuit breaker with a 40 A rated current and C tripping characteristic. It is designed to provide overload and short-circuit protection for residential, commercial and light industrial distribution panels, and mounts on a 35 mm DIN rail for compact installation. The device features manual operation with clear contact position indication and supports top and bottom cable or pin-type busbar connections.
Advantages
The breaker offers selective overload and short-circuit protection with a 6 kA rated breaking capacity and complies with IEC/EN 60898-1. Flame-retardant housing with high temperature and impact resistance improves durability. A mistake-proof contact terminal block and visible red/green contact position indicator simplify installation and maintenance. It supports conductors up to 25 mm² and ensures reliable mechanical and electrical life.
Suitable for
Residential distribution boards requiring 4-pole protection
Commercial electrical panels and lighting circuits
Light industrial installations and small machinery circuits
DIN-rail distribution assemblies with space constraints
Key specifications
Poles: 4P
Rated current (In): 40 A
Tripping class: C
Rated voltage (Ue): AC 400 V
Insulation voltage (Ui): 500 V
Rated frequency: 50/60 Hz
Rated breaking capacity (Icu): 6000 A
Rated impulse withstand voltage (Uimp): 6000 V
Mechanical life: 20000 operations
Electrical life: 8000 operations
Protection class: IP20
Terminal connection: cable or pin-type busbar, top and bottom
Wire/busbar capacity: up to 25 mm² / 18-3 AWG
Installation: DIN rail EN 60715 (35 mm) with fast clip
Operating temperature: -5°C to +40°C (daily average \<35°C)
Dimensions: 85.5 × 78.8 × 71.5 mm
Standards: IEC 60898-1 / EN 60898-1
Warranty: 24 months
How to use
Install the HiSmart NV821631 on a standard 35 mm DIN rail using the fast clip device. Connect conductors or a pin-type busbar to the top and bottom terminals, observing the maximum cross-sectional area and tightening torques recommended for your installation. Use the manual toggle to switch the circuit on and off; the red/green indicator shows contact position. Verify correct wiring and perform commissioning tests according to local electrical codes before putting the circuit into regular service.
Usage recommendations
Use this circuit breaker in distribution panels sized for 4-pole protection, avoid operating above the rated current and ambient temperature limits, and service or replace the device if mechanical or electrical performance degrades. Follow applicable installation standards and safety practices when wiring and testing.

## FAQ

### How much does the Miniature Circuit Breaker HiSmart NV821631 4P 40A cost, and is it available for purchase?

The price is 22.49 € (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 20.07.2026 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 HiSmart 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 HiSmart 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/10840452/60188099_large.webp