# Residual current circuit breaker 2P Legrand 16A B 0.03A type AC P312 (MPN 410921)

**URL:** https://aio.lv/en/product--legrand-410921--12064427
**Data updated:** 2026-03-12 21:43 (EET)
**Category:** Power Sockets
**Manufacturer:** Legrand
**Manufacturer code:** 410921
**EAN:** 3245060084028
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 59.99 €
**Prices and availability valid until:** 2026-08-09 23:59
**Price without VAT (21%):** 49.58 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--legrand-410921--12064427

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 28.07.2026 | free |
| Pickup points | 31.07.2026 | 1.89 EUR |
| Courier delivery to door | 31.07.2026 | 4.99 EUR |

## Summary description

Legrand residual current circuit breaker (RCCB with overcurrent protection) 2-pole, model P312 (MPN 410921). Rated current 16 A, B characteristic, residual tripping sensitivity 0.03 A (30 mA), type AC for detecting sinusoidal AC earth leakage. Designed for protection against earth leakage and overcurrent in residential and light-commercial electrical installations; mounts on DIN rail.

## Long description

Legrand residual current circuit breaker 2P P312 combines residual current detection with overcurrent protection in a compact two-pole device. It is rated for 16 A with a B characteristic for short-circuit/overload response and a residual tripping sensitivity of 0.03 A (30 mA). Type AC operation detects sinusoidal alternating current leakage to earth and the unit is designed for DIN-rail mounting in residential and light-commercial distribution boards.
Advantages
The device provides combined earth-leakage and overcurrent protection in a single module, reducing the number of separate components required in a distribution board. Its 30 mA sensitivity supports personal protection against electric shock, while the B characteristic ensures timely disconnection for common overload and short-circuit conditions. Compact form factor and DIN-rail compatibility simplify installation and integration into standard electrical panels.
Suitable for
Residential main and sub-distribution boards
Light-commercial electrical installations
Protection of circuits feeding sockets, lighting, and small appliances
Retrofit projects where space and combined protection are required
Key specifications
Poles: 2P (two-pole)
Rated current: 16 A
Tripping curve: B characteristic
Residual operating current: 0.03 A (30 mA)
Residual current type: AC (sinusoidal AC leakage detection)
Mounting: DIN-rail
Application: combined residual current and overcurrent protection
How to use
Install the breaker on a standard DIN rail inside the distribution board following applicable electrical regulations and local codes. Connect phase and neutral conductors to the input and output terminals according to the wiring diagram and ensure all connections are tightened to the manufacturer’s recommended torque. Verify correct polarity and that the device rating (16 A, B curve, 30 mA residual) matches the protected circuit. After installation, perform appropriate insulation and earth-leakage tests and check correct tripping operation before placing circuits into regular service.
Usage recommendations
Use this device where combined protection against earth leakage and overcurrent is required, and pair it with correctly rated upstream and downstream protective devices. For circuits with electronic loads or where pulsating residual currents are expected, confirm compatibility with type AC residual detection or choose a device with a different residual type if necessary. Periodically test the trip function and follow local maintenance schedules.

## FAQ

### How much does the Residual current breaker 2P Legrand P312 16A 0.03A cost, and is it available for purchase?

The price is 59.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 28.07.2026 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 Legrand 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 Legrand 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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