# Circuit breaker HiSmart NV821617 4-pole 25 A miniature MCB

**URL:** https://aio.lv/en/product--hismart-nv821617--10840450
**Data updated:** 2025-12-30 12:45 (EET)
**Category:** Power Sockets
**Manufacturer:** HiSmart
**Manufacturer code:** NV821617
**EAN:** 6942034316143
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 16.99 €
**Prices and availability valid until:** 2026-08-10 23:59
**Price without VAT (21%):** 14.04 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hismart-nv821617--10840450

## 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

Miniature circuit breaker HiSmart NV821617 is a 4-pole (4P) MCB rated at 25 A. Designed to provide overcurrent and short-circuit protection in three-phase and multi-pole electrical installations, it is suitable for distribution boards and panel applications. Compact and DIN-rail mountable, it helps protect circuits and connected equipment and simplifies system maintenance and safety.

## Long description

Miniature circuit breaker HiSmart NV821617 is a 4-pole (4P) MCB rated at 25 A and class C, designed for overcurrent and short-circuit protection in three-phase and multi-pole electrical installations. The device is compact, DIN-rail mountable and suitable for distribution boards and panel applications, providing reliable circuit protection and simplifying maintenance.
Advantages
The HiSmart NV821617 offers overload and short-circuit protection with a rated breaking capacity of 6 kA, clear contact position indication (red = closed, green = open), and robust construction featuring flame retardant material, high temperature resistance and impact resistance. It supports top and bottom connections, accepts cable or pin-type busbar terminals, and has a long mechanical and electrical life for durable performance.
Suitable for
Protection of three-phase circuits in commercial and industrial distribution boards
Multi-pole protection for motors, compressors and other inductive loads
Panelboards and control cabinets requiring DIN-rail devices
Key specifications
Number of poles: 4
Rated current: 25 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 (6 kA)
Rated impulse withstand voltage (Uimp): 6000 V
Mechanical life: 20,000 cycles
Electrical life: 8,000 cycles
Protection degree: IP20
Terminal type: cable / pin-type busbar
Wire/busbar cross-section: up to 25 mm² / 18-3 AWG
Connection: top and bottom
Mounting: DIN rail EN 60715 (35 mm) with fast clip device
Operating temperature: -5 °C to +40 °C (daily average \<35 °C)
Storage temperature: -25 °C to +70 °C
Dimensions: 85.5 x 78.8 x 71.5 mm
Standards: IEC 60898-1 / EN 60898-1
Warranty: 24 months
How to use
Install the HiSmart NV821617 on a 35 mm DIN rail (EN 60715) using the fast clip device. Connect the incoming and outgoing conductors to the top and bottom terminals; ensure correct cross-sectional area (up to 25 mm² or 18-3 AWG) and secure cable or pin-type busbar connections. Verify correct wiring for the four poles and set up in accordance with the installation rules and local electrical codes. After installation, check the contact position indication to confirm the device is in the desired state.
Usage recommendations
Use the MCB within its rated limits: 25 A nominal current, class C tripping characteristics, and maximum rated voltage 400 V AC. Ensure the surrounding ambient temperature remains within the specified operating range and perform periodic inspections for secure electrical connections and proper operation. For any installation or maintenance beyond basic wiring, consult a qualified electrician and follow applicable standards IEC 60898-1 / EN 60898-1.

## FAQ

### How much does the HiSmart NV821617 4P 25A miniature circuit breaker cost, and is it available for purchase?

The price is 16.99 € (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 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/10840450/60188097_large.webp